JP2006210291A - Connector disconnection prevention device, TV joint receiving device, and wiring system - Google Patents

Abstract

[PROBLEMS] To provide a simple, reliable and inexpensive connector disconnection prevention device. [MEANS FOR SOLVING PROBLEMS] A locking portion is formed on the outer periphery of a cylindrical connector housing portion of a connector plug, and a connection portion is formed on a peripheral surface of the case. The connector disconnection prevention tool has at least one end opened, and a space in which at least a portion excluding the mounting surface from the opening to the mounting target of the case can be stored, and an opening is notched in a surface facing the side surface of the case. A recessed portion that fits into a locking portion formed in the connector accommodating portion of the connector plug, and a fixing means that is formed at a position facing the connecting portion formed in the case,
The fixing means of the fastener and the connecting means of the case are detachably locked in a state where the connector plug can be inserted into and removed from the connector seat, and the concave portion of the stopper and the connector plug are locked. There are two mounting states: a portion that is freely rotatable in the direction of rotation of the connector plug and a state in which the connector plug is locked to prevent the connector plug from being removed from the connector seat. .

[Selection] Figure 1

Description

The present invention relates to the prevention of disconnection to prevent one connector from being disconnected from the other connector in the connection of a coaxial connector mainly used for a TV joint reception device. , It relates to a television joint receiving device and a wiring system using the same.

Conventionally, a connector for a television joint receiving device has a cable coupling portion connected to a braided conductor of a coaxial cable at the connector plug, and is movable in the axial direction and rotated in the circumferential direction at the base end portion of the cable coupling portion. A ring-shaped engaging portion pivotally attached to the cable connecting portion and the engaging portion; and an elastic member that performs an elastic buffering action between the cable connecting portion and the engaging portion. Provided with a locking piece,
The connector seat is formed with a groove formed by a series of an introduction portion, a guide portion, and a locking portion provided on a screw surface formed on the peripheral surface of the connector seat, and the engagement formed on the connector plug is formed in the groove. Since the stopper is engaged and connected, this coaxial connector plug can be connected to the connector seat only by rotating the ring-shaped engaging portion and can be firmly attached. In addition, the detachment operation can be smoothly performed by an elastic buffering action by an elastic member provided between the cable connecting portion and the engaging portion.
(For example, see Patent Document 1)

Japanese Patent No. 3034534

However, according to the conventional coaxial connector plug, a locking piece is provided on the inner side of the end face of the ring-shaped engaging portion, so that this coaxial connector plug has a dedicated locking groove formed on the connector seat to which it is attached. This connector seat cannot be installed unless the connector seat is versatile enough to accept coaxial connector plugs of other configurations, but can be slidably fixed to the coaxial connector seat. If a certain connector plug is attached, there arises a problem that the attachment strength is lowered.
Further, since the coaxial connector shown in this embodiment has a locking piece, it has to be used one-on-one with the connector seat, which has a problem in versatility.
In addition, the elastic members provided to improve the operability of the connection and to improve the mounting strength after the connection are said to be a disc spring held by a retaining ring or a chrysanthemum spring that abuts against the end face of the connector seat. Since it is composed of a plurality of components, there is a problem that the structure is complicated and the cost of the product is increased.
Therefore, in the present application, it was made to solve such problems,
An object of the present invention is to provide a connector disconnection prevention tool that can easily and inexpensively prevent connector disconnection.
Another object of the present invention is to provide a coaxial connector disconnection prevention device that can make a connection with excellent adhesion even though it is simple and inexpensive.
Another object is to provide a stopper for providing a coaxial connector that is difficult to be pulled out even when a coaxial cable is pulled.
Another object of the present invention is to provide a coaxial connector disconnection prevention device that can be easily installed in the TV joint reception work.
Another object of the present invention is to provide a television co-reception device equipped with a connector disconnection prevention device that is inexpensive and has a simple configuration.
Another object of the present invention is to provide a highly reliable wiring system including a connector disconnection prevention tool that is inexpensive, simple, and can reliably prevent connector disconnection.

In order to solve the above problems, the invention of claim 1 is attached in a connected state of a connector seat attached to the side surface of the case of the target device and a connector plug connected to the connector seat.
In the connector disconnection preventing device for preventing one connector from coming out of the other connector, a locking portion is formed on the outer periphery of the cylindrical plug receiving portion fitted into the connector seat provided in the connector plug. , A connecting means is formed at an arbitrary position on the peripheral surface of the case, and the connector disconnection prevention tool has at least one end opened, and has a space in which a part of the case can be accommodated from the opening. When the connector disconnection prevention device is attached to the case, the connector plug is formed by notching the opening on the side surface of the connector disconnection prevention device that is disposed opposite to the side surface of the case to which the connector seat is attached. A concave portion that fits into the engaging portion formed in the stopper receptacle housing portion, and a fixing means formed at a position facing the connecting means formed on the peripheral surface of the case. The securing means of the disconnection prevention tool and the connection means of the case are such that the connector disconnection prevention tool and the case are detachably locked in a state in which the connector plug can be inserted into and removed from at least the connector seat. The state, the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug are rotatable with respect to the rotation direction of the connector plug, and with respect to the direction in which the connector plug is removed from the connector seat. Is configured to have two attachment states: a locked state that is fitted so as to prevent disconnection.

The invention of claim 2 is attached in the connected state of the connector seat attached to the side surface of the case of the target device and the connector plug connected to the connector seat, and one connector comes out of the other connector. In a TV joint receiver equipped with a connector disconnection prevention device that prevents
A locking portion is formed on the outer periphery of the cylindrical connector housing portion fitted into the connector seat provided in the connector plug, and a connecting means is formed at an arbitrary position on the peripheral surface of the case. The connector removal prevention tool has at least one end opened and has a space in which a part of the case can be accommodated from the opening, and the connector seat is attached when the connector removal prevention tool is attached to the case. A recessed portion that is formed on the side surface of the connector disconnection prevention device that is disposed to face the side surface of the case and that is formed by notching the opening, and that engages with a locking portion that is formed in a plug receiving portion provided in the connector plug; A fixing means formed at a position opposite to the connection means formed on the peripheral surface of the case, and the fixing means of the connector disconnection prevention tool and the connection means of the case are at least with respect to the connector seat A state in which the connector disconnection prevention tool and the case are detachably locked in a state where the connector plug can be inserted and removed, and the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug. , Two attachments: a locked state in which the connector plug is rotatable so as to be rotatable with respect to the rotating direction of the connector plug, and is engaged so as to prevent the connector plug from being removed from the connector seat. The connector disconnection prevention tool comprised so that it might have a state was comprised.

According to a third aspect of the present invention, there is provided a wiring system related to television reception, comprising the connector disconnection preventing device according to the first aspect or the television joint receiving device according to the second aspect.

According to the invention of claim 1, the connector seat attached to the side of the case of the target device and the connector plug connected to the connector seat are attached in a connected state,
In the connector disconnection preventing device for preventing one connector from coming out of the other connector, a locking portion is formed on the outer periphery of the cylindrical plug receiving portion fitted into the connector seat provided in the connector plug. , A connecting means is formed at an arbitrary position on the peripheral surface of the case, and the connector disconnection prevention tool has at least one end opened, and has a space in which a part of the case can be accommodated from the opening. When the connector disconnection prevention device is attached to the case, the connector plug is formed by notching the opening on the side surface of the connector disconnection prevention device that is disposed opposite to the side surface of the case to which the connector seat is attached. A concave portion that fits into the engaging portion formed in the stopper receptacle housing portion, and a fixing means formed at a position facing the connecting means formed on the peripheral surface of the case. The securing means of the disconnection prevention tool and the connection means of the case are such that the connector disconnection prevention tool and the case are detachably locked in a state in which the connector plug can be inserted into and removed from at least the connector seat. The state, the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug are rotatable with respect to the rotation direction of the connector plug, and with respect to the direction in which the connector plug is removed from the connector seat. Since it is configured to have two mounting states: a locked state that fits to prevent disconnection,
Even in plug-type connector connections where the connectors are slidably fixed to each other without adding complicated mechanisms or precision parts, etc., the connector is simple and inexpensive, with one connector being the other It is possible to provide a connector disconnection prevention tool that can prevent the connector from being disconnected.
Further, even when the connector plug and the connector seat are screwed together and connected by screws, it is possible to provide a highly versatile connector disconnection prevention tool that can be used to prevent loose connection between the connectors.
Furthermore, this connector removal prevention device is connected to the case to be attached in a locked state so that the connector can be freely inserted and removed, so that not only the product can be easily packed, but also at the installation site. There is no such thing as falling or losing. Further, when the connection of the connector is completed, the connector connection can be easily and reliably maintained, for example, by sliding the connector removal prevention tool further toward the case and locking it.

According to the invention of claim 2, it is attached in a connected state of the connector seat attached to the side surface of the case of the target device and the connector plug connected to the connector seat, and one connector is connected to the other connector. In a TV joint receiver equipped with a connector disconnection prevention device that prevents it from coming out of
A locking portion is formed on the outer periphery of the cylindrical connector housing portion fitted into the connector seat provided in the connector plug, and a connecting means is formed at an arbitrary position on the peripheral surface of the case. The connector removal prevention tool has at least one end opened and has a space in which a part of the case can be accommodated from the opening, and the connector seat is attached when the connector removal prevention tool is attached to the case. A recessed portion that is formed on the side surface of the connector disconnection prevention device that is disposed to face the side surface of the case and that is formed by notching the opening, and that engages with a locking portion that is formed in a plug receiving portion provided in the connector plug; A fixing means formed at a position opposite to the connection means formed on the peripheral surface of the case, and the fixing means of the connector disconnection prevention tool and the connection means of the case are at least with respect to the connector seat A state in which the connector disconnection prevention tool and the case are detachably locked in a state where the connector plug can be inserted and removed, and the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug. , Two attachments: a locked state in which the connector plug is rotatable so as to be rotatable with respect to the rotating direction of the connector plug, and is engaged so as to prevent the connector plug from being removed from the connector seat. Because it has a connector disconnection prevention device configured to have a state,
For example, when a TV joint receiving device having a connector seat represented by a distributor is installed in a ceiling or the like where the installation work is difficult to perform, the distributor is installed on the ceiling, etc. In the method of connecting the coaxial cable, which is attached to the plug and processed to a predetermined cable length, to the connector seat of the distributor, in the case of ordinary joint reception work, in order to increase the connection reliability, the connector plug and the connector seat Use a screw that is configured to be fixed by screwing a female screw and a male screw. For example, while facing upward in an unstable state on a stepladder or scaffold, adjust the coaxial cable to the shape of the installation site. Therefore, it was necessary to fix the connector plug to the connector seat using a wrench or the like. By using the fastener of the present application, the connector plug and the connector seat are fixed by sliding. Even if the connector is easy to install, for example, after connecting the coaxial cable in advance on the floor where the construction can be done easily and safely, the connector stopper can be used by attaching the fastener of this application. Because it is fixed to the connector seat so that it can rotate in the direction of rotation and not in the direction of disconnection, it is only necessary to install the distributor on the ceiling after installing the coaxial cable, and installation work is simple. And it can be made safe.
In addition, the connector removal prevention device is in a state in which the case is turned upside down as described above by keeping it locked to the case so that the connector plug can be inserted and removed in the state of product shipment. Even if it is installed, it does not drop, and it is possible to provide a television joint receiving device that can reliably maintain the connection state by simply sliding and locking the connector disconnection prevention device after the connector plug is attached.

The invention of claim 3 is a wiring system related to television reception, comprising the connector disconnection prevention device according to claim 1 or the television joint receiving device according to claim 2, so that the wiring system can be constructed easily and safely. In addition, it can provide a highly reliable wiring system.

Hereinafter, an example of an embodiment embodying the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a connector disconnection preventing device according to the present application, FIG. 2A is a side view in which a part of the embodiment shown in FIG. 1 is broken, and FIG. FIG. 3A and 3B are side views of the embodiment showing the shape of the locking portion of the connector plug. FIGS. 4A and 4C are side views, partly broken, showing two attachment states of the connector disconnection prevention tool, and FIG. 4B is a side view showing a state in the middle thereof. FIG. 5 is a partially broken sectional view corresponding to each line AA in FIG. FIG. 6 is a perspective view showing a different embodiment. FIG. 7 shows a method for installing the joint receiving device.

The connector removal prevention tool 10 of the present application will be described with reference to the drawings. In addition, in order to explain easily about the Example of this application, it demonstrates using the divider | distributor 1 in a television joint receiver as a suitable example for utilizing the connector disconnection prevention tool 10 of this application.
In the embodiment of the present application, the distributor 1 is a two distributor, and the signal input to the input terminal IN is distributed and output from the two output terminals OUT1 and OUT2. The distribution circuit built in the distributor is housed in a case 2 in which a metal material is molded with a mold so that one side is open and has a space inside. It is formed so as to be connected to the outside by being connected to the terminals OUT1 and OUT2.
The input terminal IN and the output terminals OUT1 and OUT2 constitute the connector seat shown in the claims. In the embodiment of the present application, the input terminal IN and the output terminals OUT1 and OUT2 are formed integrally with the case 2, and a male screw is formed on the peripheral surface of each terminal. Has been. The connector seat may be a member formed separately from the case 2 and assembled by crimping or caulking.
Further, a lid body 2a pressed with a metal material is attached to the opening of the case 2 by press fitting or the like.
3, 3,... Are locking claws provided with through holes 3a, 3a,... In a substantially central portion. A wood screw or the like is inserted into the through hole, and the wood screw is screwed onto an attachment target. This is for fixing the distributor 1 by attaching it.
Reference numeral 5 denotes connection means integrally formed on the peripheral surface of the case 2, and in the embodiment of the present application, a pair of recesses are formed on the left and right side surfaces of the case 2. The connecting means 5 is not limited to this embodiment, and a predetermined number of connecting means 5 may be provided at predetermined locations. Reference numeral 6 denotes a name plate for displaying the type, electrical characteristics, and the like of the distributor 1, and is fixed to the upper surface of the case 2 with an adhesive tape or the like.

7, 8 and 9 are coaxial cables having a coaxial F-type connector plug attached to the tip. The coaxial F-type connector shown in the embodiment of the present application is composed of cylindrical plug housing portions 7a, 8a, 9a and sleeves 7b, 8b, 9b that are fitted into the connector seats IN, OUT1, OUT2. The plug accommodating portions 7a, 8a, 9a are formed by molding a metal material. In the embodiment of the present application, a slit is formed so as to have a spring property so that the connector seat can be slidably fixed. In addition, in order to improve attachment property, you may provide the spring material which consists of an elastic member in the inner periphery of the said receptacle accommodating part. Locking portions 17, 18, and 19 are integrally formed so as to protrude outward from the peripheral surface in the vicinity of the outer peripheral ends of the plug receiving portions 7a, 8a, 9a. A specific embodiment of this locking portion is shown in FIG. (A) is a projection projecting from the peripheral surface of the plug housing portion, and (b) is a recess formed on the peripheral surface of the plug housing portion. (C) shows a connector plug to which a plug receiving portion is fixed by caulking of a metal ring (so-called ferrule).
It should be noted that the specific example of the locking portion is not particularly limited to the specific example, for example, a locking band formed in a ring shape formed separately may be attached.

Next, reference numeral 10 denotes a connector disconnection prevention tool, which in the embodiment of the present invention is molded using a synthetic resin material, and is formed in a box shape or a case body having an open lower surface in the figure, Inside the connector removal prevention tool 10, a space 11 is provided for storing at least a portion excluding the mounting surface of the distributor 1.
12, 13, and 14 are recesses formed by cutting out the opening end of the connector disconnection prevention tool 10, and the recesses 12, 13, and 14 are provided when the connector disconnection prevention tool 10 is attached from the upper surface side of the case 2. It is formed at a position opposite to the locking portions 17, 18, 19 formed in the plug accommodating portions 7a, 8a, 9a, and is formed so as to be fitted to the locking portions 17, 18, 19. .

Reference numeral 15 denotes a fixing means integrally formed with the connector disconnection prevention device 10. In this embodiment, when the connector disconnection prevention device 10 is attached to the case 2, the connection means 5 formed on the case 2 is attached to the connection means 5. By fitting, the connector removal prevention tool 10 can be detachably locked to the case 2 and the connector removal prevention tool 10 is secured to the case in a locked state by further operations such as sliding from this locked state. It is configured to maintain two possible mounting states, and from the side of the connector disconnection prevention device 10, a connector disconnection prevention device is formed at the tip of the extended portion 15 a extending downward while forming a slit on both sides. 10 is provided with a claw portion 15b projecting inwardly.
In this embodiment, it is better to display on the upper surface of the connector disconnection prevention device 10 the electrical characteristics such as the distributor, the type and the terminal identification.

FIG. 2 (a) shows a side view of the connector disconnection prevention device 10 locked to the case 2, and a part thereof is broken to form the recesses 12, 13, 14 of the connector removal prevention device 10 and the plugs. The fitting state with the latching | locking parts 17, 18, and 19 formed in the accommodating parts 7a, 8a, and 9a is shown.
FIG. 2 (b) shows a different embodiment of the connector disconnection prevention tool 10. According to this embodiment, an opening window 10b of a predetermined size is formed on the upper surface of the connector disconnection preventing device 10 at a position facing the name plate 6 fixed to the upper surface of the distributor 1, so that the connector disconnection is prevented. Even when the preventer 10 is attached to the case 2, the display on the nameplate or the case surface with a mark or the like can be confirmed from the outside of the connector disconnection preventer 10.
Furthermore, if the connector disconnection prevention device 10 is formed of a resin having good permeability, the opening 10b need not be formed, and it is not necessary to display the connector disconnection prevention device 10, so that it is easy to use in terms of strength. A good connector removal prevention tool 10 can be provided.

Next, a method for attaching the connector disconnection prevention tool 10 will be described in more detail with reference to FIGS.
In the embodiment of the present application, the connecting means 5 and 5 formed on the case 2 of the distributor are formed on the side surface of the case 2 from the lower end to the upper end of the case 2 and from the lower end to the upper end. An introduction groove 5a formed so as to be slightly narrowed inwardly in the direction 2, and a recess 5b formed in a direction perpendicular to the formation direction of the introduction groove 5a on the introduction groove 5a, It is composed of a fixing portion 5c formed at the lower end portion of the case, and in the embodiment of the present application, an example is shown in which it is disposed to face the left and right side surfaces of the case 2.
The fixing means 15, 15 formed on the connector removal prevention tool 10 is a holding piece formed at a position facing the connection means 5, 5 when the connector removal prevention tool 10 is attached to the case 2. A predetermined extension that extends downward from a substantially central portion of the left and right side surfaces of the connector disconnection prevention device 10 while forming a slit on both sides and is tiltable with a predetermined force outward and inward of the case 2. Extending portions 15a and 15a formed in a wide width, and claw portions 15b and 15b projecting inward of the connector disconnection preventing device 10 at the distal ends of the extending portions 15a and 15a.

In attaching the connector disconnection prevention tool 10, the extension portions 15a and 15a are first attached from the upper surface side of the case along the introduction grooves 5a and 5a of the case 2. At this time, the distance between the claw portions 15b and 15b formed at the distal ends of the extended portions 15a and 15a is formed to be the same as or slightly shorter than the distance between the introduction grooves 5a and 5a formed in the case 2. Therefore, the extending portions 15a and 15a are attached while being expanded outward by elastic deformation. When further pushed in, the claw portions 15b and 15b reach the recesses 5b and 5b formed in the connecting means 5 and 5 of the case 2, and the extending portions 15a and 15a have no force applied outward. Returning to the original shape, the claw portions 15b, 15b are engaged with the recesses 5b, 5b, and the extended portions 15a, 15a are held so as to sandwich the case 2. It will be in the state locked by. The connector removal prevention tool 10 in this locked state is formed so that the connector plug is in a position where it can be attached to and detached from the connector seats IN, OUT1, OUT2 of the case 2.
This state is a locked state in two of the attachment states described in the claim hole, and this state is shown in a side view of FIG. 4A and a partial cross-sectional view of FIG.

Further, the connector removal prevention tool 10 is slid downward from this locked state. At this time, since the lower ends of the claw portions 15b and 15b are tapered toward the tip, Since the lower ends of the tips of the claw portions 15b and 15b are pressed downward while abutting against the bottoms of the introduction grooves 5a and 5a, the extending portions 15a and 15a are pushed outward by the cam action at this time. Can be attached while being spread.
Further, the introduction grooves 5a, 5a are formed in a tapered shape so as to spread outward from the upper part to the lower part of the case, and the extension part 15a is further outward by further sliding operation of the connector removal prevention tool 10. It is pushed to the side. This state is shown in a side view of FIG. 4B and a partial cross-sectional view of FIG.

When the connector disconnection prevention tool 10 is further slid downward, the claw portions 15b and 15b are locked to a fixing portion 5c formed at the lower end portion of the connection means 5 of the case 2. At this time, the extension portions 15a and 15a are formed so that the dimension between the inner sides in the normal state is the same as or slightly smaller than the dimension between the fixing portions 5c and 5c of the case 2. 15a strongly holds the fixing portions 5c and 5c by the elastic force of the molded material.
Furthermore, the dimensions of the upper side surfaces of the claw portions 15b, 15b that contact the fixing portions 5c, 5c and the inner side of the upper end surface of the connector disconnection prevention device 10 are the same as the dimensions of the lower end of the fixing portion of the case 2 and the upper surface of the case 2. By forming the connector so as to be slightly smaller, the connector removal prevention tool 10 and the case 2 are securely locked.
This state is a locked state of the two attachment states described in the claim hole, and this state is shown in a side view of FIG. 4C and a partial cross-sectional view of FIG.

The operation and effect of the connector disconnection prevention tool 10 configured as described above will be described. The distributor 1 is connected with coaxial cables 7, 8, and 9 having the coaxial F-type connector plug shown in the embodiment of the present application. Thereafter, the connector removal prevention tool 10 is locked to the case 2.
At this time, the widths of the recesses 12, 13, and 14 formed in the connector disconnection prevention device 10 are such that the plug receiving portions 7a, 8a, and 9a are inserted in the vertical direction in the figure (so-called connector attachment prevention device mounting direction). It is made slightly larger than the peripheral diameter of the plug receptacle portion as much as possible, and the inside of the peripheral edge of the opening end of the recesses 12, 13, 14 with respect to the direction in which the connector plug is pulled out (so-called axial direction of the connector plug). The F-type connector plug of the coaxial cable has a portion formed so that a half circumference or a part of a side surface of the locking portion 17, 18, 19 formed in the plug accommodating portion 7a, 8a, 9a abuts. The F-type connector seat is connected so as to be rotatable in the rotation direction and not to be pulled out in the pull-out direction.
In addition, according to the embodiment of the present application, for example, the connector disconnection prevention device 10 can be made into a compact package by bringing it into the locked state or the locked state as described above at the time of shipment. Not only can this cost be reduced, but also the packaging material can be reduced. Further, if the connector disconnection prevention device 10 is in the locked state as described above at the time of installation, the user can leave the connector disconnection prevention device 10 and reconnect the connector whether it is installed on the wall or on the ceiling. It is possible to provide a connector removal prevention device that is extremely easy to install and highly convenient, and that it is not necessary to install the prevention device 10 and that it will not fall or be lost somewhere during the construction. .

As an example of the present application, an example in which a distributor is used as a suitable example of a television co-reception device is shown. However, the present invention is not particularly limited to this example. Needless to say, it may be a serial unit.
In this embodiment, the terminal cover 27 sandwiched between the case 20 by the locking pieces 27a and 27a is attached to the branch output side (not shown) of the case 52 formed by die casting. A concave portion formed in a holding portion between the locking pieces 27 a and 27 a and the case is a fixing portion 55 c of the connector disconnection prevention tool 20.
Connection means 55 are formed on both side surfaces of the case 52. The connecting means 55 is composed of an introduction groove 55a and a recess 55b as in the above embodiment. 53 and 54 are integrally formed on the lower surface of the case 52, and are tab connector seats, which respectively constitute an input terminal and an output terminal.
The connector disconnection prevention device 20 is formed of a synthetic resin having an open end, and the connector disconnection prevention device 20 and the case 52 are held by locking at recesses 55b formed in the case 52 on both ends in the longitudinal direction. The extension portions 25 and 25 are configured so that the connector disconnection prevention tool 20 and the case 52 are locked at the fixing portion 55c, and the connector plug connection portion is formed in the stopper portion. Concave portions 23 and 24 are formed to fit the stoppers and prevent the connector plugs from coming off.
In addition, a step corresponding to the thickness of the bottom of the introduction groove 55a is formed between the tips of the locking pieces 26a and 27a and the case 52. This step is for obtaining the same effect as the taper of the side surface of the case 2 in the above embodiment, whereby the extending portions 25, 25 are slightly widened outward in the step, and the extension generated at this time It is securely locked to the fixing portions 55c and 55c by the restoring force due to the elasticity of the portions 25 and 25.
In the embodiment of the present application, an example in which a pair of fixing means and connecting means are formed is shown. However, the present invention is not limited to this embodiment, and a predetermined shape corresponding to the shape and size of the case is shown. A predetermined number of fixing means and connecting means may be provided at the place.

A construction example of the television joint reception system using the television joint reception device and the connector disconnection prevention device configured as described above will be described with reference to FIG.
In this embodiment, for example, the signal is divided into two and drawn into the lead-in line 32 from the antenna via the distributor 1. In general, the distributor 1 is often installed on an eaves 31 or a ceiling shown in the figure. A conventional construction method in the case of installing in such a place where installation work is difficult to perform is that coaxial cables 33 and 34 in which a connector plug is attached and processed into a predetermined cable length after the distributor 1 or the like is installed on the ceiling or the like. Are connected to the connector seat of the distributor 1, but in the case of ordinary joint reception work, the connector plug and the coaxial F-type connector seat provided in the case 2 in order to increase the connection reliability are: For example, the coaxial cables 31, 32, and 33 are installed at the installation site while facing upward in an unstable state on a stepladder 40 or a scaffold, for example, by using a female screw and a male screw. It was necessary to fix the connector plug to the connector seat with a wrench or the like after fitting it to the shape, and for the installer, it was an operation that continued in an unreasonable state facing upwards. So It was a bad thing is the high work of insurance properties.

Therefore, for example, if the coaxial cable is fixed in advance on a floor surface that is easy to construct, the distributor 1 is turned upside down when the distributor 1 is lifted to the ceiling or the like so that the mounting surface faces the installation surface under the eaves. At this time, since the connector plug is fixed to the connector seat, the coaxial cable is twisted, a load is applied to the connector plug mounting portion, and the connector plug is loosened. In addition, it is conceivable to connect the coaxial cable with the distributor turned upside down in advance, but in this case the nameplate will face downward or the terminal separation display will not be visible. Not only is it difficult to check, but in the worst case, there is a problem of incorrect wiring.

On the other hand, by providing the connector disconnection prevention tool 10 of the present application, even if the connector plug and the connector seat are slidably fixed by sliding fixation, it is simple and safe. It is possible to provide a television co-reception device equipped with a highly reliable connector disconnection prevention device that prevents the connector plug from coming off the connector seat in a short time.
Also, for example, after the coaxial cable is connected in advance on the floor or the like where the construction is easy and safe, the connector plug is locked in the rotational direction with respect to the connector seat by locking with the connector disconnection prevention tool 10 of the present application. Since it is rotatable and can be fixed easily and easily so that it does not come off in the direction of removal, it is only necessary to install the distributor on the eaves 31 after installation of the coaxial cable, making installation work simple and safe. It is possible to provide a highly reliable wiring system for a joint receiving device that can be performed in a short time and that prevents the connector plug from coming off the connector seat.

Note that the present invention is not limited to the above-described embodiment, and the configuration of each part can be appropriately changed and implemented without departing from the spirit of the present invention.

It is a perspective view showing an embodiment of a connector omission prevention tool concerning this application. (A) is the side view which fractured | ruptured a part of embodiment shown in FIG. (B) is the side view which fractured | ruptured a part of different embodiment of a connector removal prevention tool. (A) It is an Example which shows the shape of the latching | locking part of a connector plug. (B) is an Example which shows the different shape of the latching | locking part of a connector plug. These are the side views which fractured | ruptured a part which shows two attachment states of the connector removal prevention tool. FIG. 5 is a partial cross-sectional view showing the attachment state of FIG. 4. FIG. 6 is a perspective view showing a different embodiment. This shows one method for installing the joint receiving device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Distributor, 2 ... Case, 3 ... Locking claw, 3a ... Through-hole, 5 ... Connection means, 5a ... Introducing groove, 5b ... Recessed part, 5c ... Adhering part, 6 ... Nameplate, 7,8,9 ... Coaxial Cable, 7a, 8a, 9a ... Connector housing, 7b, 8b, 9b ... Sleeve, 8c ... Ferrule, 10 ... Connector removal prevention device, 10a ... Reinforcing part, 10b ... Opening part, 12,13,14 ... Recess, DESCRIPTION OF SYMBOLS 15 ... Adhering means, 15a ... Extension part, 15b ... Nail | claw part, 17,18,19 ... Locking part, 20 ... Connector removal prevention tool, 22.23 ... Recessed part, 25 ... Extension part, 27 ... Terminal cover, 27a ... locking piece, 30 ... building, 31 ... under the eaves (installation surface), 32, 33, 34 ... coaxial cable, 40 ... stepladder, 50 ... series unit, 52 ... case, 53/54 ... connector seat, 55 ... Connecting means, 55a ... introducing hole, 55b ... recess, 55c ... adhering portion

Claims (3)

Connector disconnection prevention that is attached in the connected state of the connector seat attached to the side of the case of the target device and the connector plug connected to the connector seat to prevent one connector from coming off the other connector In the tool,
A locking portion is formed on the outer periphery of the cylindrical plug receiving portion fitted into the connector seat provided in the connector plug,
A connecting means is formed at an arbitrary position on the peripheral surface of the case,
The connector disconnection prevention device has at least one end opened, and has a space in which a part of the case can be accommodated from the opening, and the connector seat is attached when the connector disconnection prevention device is attached to the case. A recess that is formed by notching the opening on the side face of the connector disconnection prevention device that is disposed opposite to the side face of the case that is fitted to a locking part formed in a plug receiving part provided in the connector plug. And fixing means formed at a position facing the connection means formed on the peripheral surface of the case,
The fixing means for the connector disconnection prevention tool and the connection means for the case are detachably engaged with the connector disconnection prevention tool and the case in a state in which the connector plug can be inserted into and removed from at least the connector seat. And the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug are rotatable with respect to the rotation direction of the connector plug, and the connector plug is detached from the connector seat. On the other hand, a connector disconnection preventing device characterized in that it is configured to have two attachment states: a locked state to be fitted so as to prevent disconnection.
Connector disconnection prevention that is attached in the connected state of the connector seat attached to the side of the case of the target device and the connector plug connected to the connector seat to prevent one connector from coming off the other connector In a TV joint reception device equipped with equipment,
A locking portion is formed on the outer periphery of the cylindrical plug receiving portion fitted into the connector seat provided in the connector plug,
A connecting means is formed at an arbitrary position on the peripheral surface of the case,
The connector disconnection prevention device has at least one end opened, and has a space in which a part of the case can be accommodated from the opening, and the connector seat is attached when the connector disconnection prevention device is attached to the case. A recess that is formed by notching the opening on the side face of the connector disconnection prevention device that is disposed opposite to the side face of the case that is fitted to a locking part formed in a plug receiving part provided in the connector plug. And fixing means formed at a position facing the connection means formed on the peripheral surface of the case,
The fixing means for the connector disconnection prevention tool and the connection means for the case are detachably engaged with the connector disconnection prevention tool and the case in a state in which the connector plug can be inserted into and removed from at least the connector seat. And the concave portion of the connector disconnection prevention tool and the locking portion of the connector plug are rotatable with respect to the rotation direction of the connector plug, and the connector plug is detached from the connector seat. On the other hand, a television joint receiving apparatus comprising a connector disconnection prevention device configured to have two attachment states: a locked state that is fitted so as to prevent disconnection.
In the wiring system for TV reception,
A wiring system comprising the connector disconnection prevention device according to claim 1 or the television joint reception device according to claim 2.

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