JPH0965544A - Wiring accessory for multimedia - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to limit the combination of a base unit and a functional unit by means of an engaging portion by forming the engaging portion that allows the mechanical joining of the base unit and the functional unit only when the base unit and the functional unit can be combined with each other. SOLUTION: A projected engaging portion 1, composed of an appropriate number of pieces of projections 1a in a straight line, is formed on the surface of a base unit 10 opposed to a functional unit 20. A recessed engaging portion 2, composed of the same number of grooves 2a as the projections 1a, to be engaged with the projected engaging portion 1, is formed on the functional unit 20. If a base unit 10 corresponds to a functional unit 20, therefore, the number and positions of the projections 1a in the former's projected engaging portion 1 matches with those of the grooves 2a in the latter's recessed engaging portion 2. If the number of the projections on a base unit does not match with that of the grooves on a functional unit, it is impossible to match the positions of their coupling holes 11a, 21b with each other. As a result the base unit 10 will not be joined with the functional unit 20. This prevents erroneous combination of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information transmission function for relaying an indoor wireless signal to a wired signal line, transmitting indoor image information to a signal line, and transmitting indoor environment information to a signal line. The present invention relates to a multimedia wiring device including a base unit that has the above-mentioned structure and is fixed to a construction surface, and a functional unit that has an information transmission function and is detachably coupled to the base unit.

[0002]

2. Description of the Related Art In recent years, it has become necessary to transmit various kinds of information such as texts, images and voices for the purpose of communication, device control, disaster prevention / crime prevention, etc. in an indoor space such as a home or an office. And so-called multimedia is advancing. For example, information transmission systems such as a wireless local area network (hereinafter, referred to as a wireless LAN), a personal handy phone system (hereinafter, referred to as a PHS), and a home bus system (hereinafter, referred to as an HBS) are constructed. Then
A wireless transmission path using radio waves or light is formed between a wireless information terminal, a PHS telephone terminal, a remote control transmitter for controlling equipment, etc., and a wireless transmission path and a wired transmission path. There is a demand for a function of relaying between the devices and a function of connecting various sensors to a wired transmission path for disaster prevention, crime prevention, device control, and the like. That is, there is a demand for wiring equipment that can cope with such multimedia.

In LAN, PHS, HBS, and other information transmission systems, where to place information terminals, telephone terminals, remote control oscillators, controlled devices, various sensors, and the like is determined according to the layout of the room. Therefore, a device having the above-described various functions and connected to a wired transmission path (hereinafter, referred to as an information wiring device as a generic name of this type of device) is arranged after the indoor layout and the like are determined. It is desirable to do. However, since wired transmission lines are usually wired inside the ceiling or inside the wall, it is necessary to route the transmission lines placed inside the ceiling or inside the wall according to the arrangement of various information wiring devices after the construction of the building. Has the problem that it takes time.

Therefore, the inventors of the present invention connected the information wiring device to a base unit having a function of connecting to a signal line common to the above-mentioned various functions, and various information transmissions detachably connected to the base unit. It was previously proposed that the configuration be made up of functional units each having a function. With this configuration, when constructing a construction product, the signal line is pre-wired to the construction product, and the base unit is appropriately arranged on the construction product so that at least a part of the construction surface is exposed. Is connected in advance, and a functional unit having a required function at each place where the base unit is installed may be connected to an appropriate base unit.

That is, by adopting the above-mentioned configuration, the signal line can be concealed in the ceiling or the wall by the preceding wiring, and the wiring can be installed in a good-looking manner, and the wiring can be concealed after the construction object is constructed. Wiring is easier than in the case. Further, since the base unit may be appropriately installed and the functional units having the required functions may be combined later, it is easy to change the locations where various functions are provided.

[0006]

As described above, when the information wiring device for multimedia is constituted by the base unit and the functional unit, all the prepared functional units are connected to any base unit. However, depending on the installation location of the base unit in the indoor space, it may not be necessary to connect functional units other than those having a specific function. For example, since a surveillance camera that monitors people entering from the entrance is located at a position where the entrance can be monitored, the range that can be adopted as the installation location is almost fixed, and it can also be installed near the window to adjust the amount of outside light. In the case of an illuminance sensor used for performing indoor lighting according to the above, it is an essential condition to arrange the illuminance sensor at the window, and therefore the installation place is almost fixedly determined. As described above, depending on the functional unit, the installation location may be determined when the base unit is installed.

[0007] Further, when the systems of the wiring equipment are different in system (for example, when there is a system of wireless LAN and PHS), it is better to transmit information by using different signal lines for processing such as signal separation. Is unnecessary, and the transmission quality is high. Therefore, if a plurality of systems of signal lines are wired, the functional units that can be combined are limited for each base unit connected to each signal line.

As mentioned above, it is not necessary to be able to connect all the functional units to the base unit, and in some cases only a specific functional unit may be connected to a specific base unit. Sometimes it doesn't. In the multimedia wiring device previously proposed by the present inventors, it is not possible to provide such a restriction on the coupling relationship between the base unit and the functional unit, and the functional unit that is not compatible with the base unit is coupled. There was something that happened

The present invention has been made in view of the above circumstances, and an object thereof is to provide a function of regulating whether or not a base unit and a functional unit are compatible with each other, and to prevent the functional unit from functioning when they are not compatible. The present invention intends to provide a wiring device for multimedia.

[0010]

According to the first aspect of the present invention, as a transmission path for various kinds of information, it is fixed to the building by being connected to a signal line wired to the building and at least a part of which is exposed from the building surface. In a multimedia wiring device including a base unit and a functional unit that has an information transmission function and is coupled to the base unit and is connected to a signal line through the base unit, the base unit and the functional unit include A key portion is formed that allows mechanical connection between the base unit and the functional unit only when they can be combined.

The information transmission function is a function of relaying a radio signal by radio waves or light as a medium of information transmission to a wired signal line, and a function of transmitting image information of an indoor space to the signal line like a television camera for monitoring. , Such as a human body detection sensor and an illuminance sensor, including a function of transmitting information on the indoor environment to a signal line. In addition, being able to combine with each other means that the coupling relationship with the base unit is restricted by the application of the functional unit (installation location or system type), or the coupling relationship with the base unit is restricted according to the manufacturer of the functional unit. In such a case, it means that the base unit and the functional unit can be combined to suit each other.

Therefore, according to the configuration of the invention of claim 1, it is possible to restrict the combination of the base unit and the functional unit by the key portion, and regarding the base unit in which the functional units that can be combined are determined. By installing a base unit having a key unit suitable for the functional unit, the coupling relationship between the base unit and the functional unit will not be erroneous. Also, since the mechanical key part regulates the coupling relationship between the base unit and the functional unit, a functional unit that is not compatible with the base unit cannot be coupled to the base unit, so that the functional unit does not substantially function. Will be.

According to a second aspect of the present invention, in the first aspect of the present invention, one of the base unit and the functional unit has a tubular portion into which a portion of the other is inserted, and the coupling is provided through the peripheral wall of the tubular portion. The base unit and the functional unit are coupled by inserting the fixing tool inserted through the mounting hole into the other coupling hole, and the base unit and the functional unit are provided on the opposite surfaces when the base unit and the functional unit can be combined with each other. A key portion is formed to regulate the position so that the coupling holes of the unit and the functional unit are aligned with each other.

According to a third aspect of the present invention, in the second aspect of the present invention, a key projection protruding from the facing surface of the base unit facing the functional unit is formed at an appropriate position, so that A keyway into which the key protrusion of the base unit that can be combined is inserted is formed on the facing surface of the key unit, and the key portion is formed by the key protrusion and the key groove.

In the invention of claim 4, in the invention of claim 1, when the functional unit is rotated with respect to the base unit after being inserted into the engaging hole formed in the base unit, the peripheral edge of the engaging hole. A hook is formed to connect the functional unit to the base unit by being locked to the base unit, and the periphery of the hook and the side surface of the hook have a key portion that allows the hook to be introduced into the hook when they can be combined with each other. It is formed.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the base unit has a built-in modular jack connected to the signal line and a jack fixing tool for coupling the modular jack to the base unit. On the opposite surface of the, there is a modular plug that is inserted into the base unit through the receiving window that opens in the base unit and is slid along the surface facing the base unit and is guided by the wall of the jack fixture and inserted into the modular jack. A key portion is formed on the wall portion of the jack fixture and the side surface of the modular plug which are protruded and allow the modular plug to move when they can be combined with each other.

The invention of claims 2 to 5 is a preferred embodiment of the key part. According to a sixth aspect of the present invention, in any one of the first, second, fourth, and fifth aspects, the key portion is provided on one of the base unit and the functional unit, and the key protrusion is provided on the other. The key unit has a key groove that can be engaged with the key protrusion, and the setting of the key unit can be changed on the base unit side.

Since the setting of the key portion can be changed on the side of the base unit as described above, the key portion can be set appropriately when the base unit is installed, and the functional unit can be adapted according to the purpose. be able to. Further, since the setting of the key part can be changed, the base unit having the same configuration can be used, and the conformity relationship with various functional units can be restricted only by changing the setting of the key part.

According to the invention of claim 7, a base unit which is connected to a signal line laid on the building as a transmission path for various information and is fixed to the building so that at least a part thereof is exposed from the building surface, and information transmission. In a multimedia wiring device having a functional unit that has a function and is coupled to a base unit and connected to a signal line through the base unit, the base unit includes a light emitting unit that emits light toward the functional unit. , A light receiving unit for receiving the reflected light from the functional unit, the functional unit is formed with an identification mark indicating the type of the functional unit at a position where the light receiving unit receives the reflected light of the light emitted by the light emitting unit, A processing unit provided separately from the base unit and the functional unit identifies the identification mark detected by the light receiving unit and performs processing according to the identification mark. .

In this configuration, the type of the functional unit is optically detected in a non-contact manner, and the detection information of the identification mark is transferred to the processing unit as a signal. Therefore, the matching relationship between the functional unit and the base unit is incorrect. It is difficult to change to. That is, only the person who has the technique of changing the processing of the processing unit can change the matching relationship. Further, by transferring the detection information of the identification mark as a signal to the processing unit, the type of the functional unit can be detected by this signal, so that the processing unit can know the connection state of the functional unit, Easy to manage.

According to the invention of claim 8, in the invention of claim 7, the identification mark is formed as a concavo-convex surface aligned in a straight line, and the light emitting portion scans the light beam in a direction in which the concavo-convex surface is arranged.
According to the invention of claim 9, in the invention of claim 7, the identification mark is formed such that portions having different reflectances are aligned on one plane, and the light emitting portion is arranged to emit light in a direction in which portions having different reflectances are arranged. Scan the beam.

The inventions of claims 8 and 9 are preferred embodiments, in which an uneven surface is used as an identification mark or portions having different reflectances are arranged side by side. In the invention of claim 10,
In the invention of claims 7 to 9, the processing unit has a function of stopping the connection with the functional unit when the identification mark does not match the marked mark data, and the mark data set in the processing unit is It can be changed.

That is, by making it possible to change the setting of the mark data in the processing unit, it is possible to adapt a functional unit according to the purpose and use the same unit as the base unit. It is possible to regulate compatibility relationships with various functional units simply by changing settings. Further, the connection of the functional unit of the identification mark that does not match the mark data set in the processing unit is stopped, and the functional unit that does not match is not allowed to function.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) As shown in FIG. 1, basically, the functional unit 20 is detachably coupled to the base unit 10. In this embodiment, the base unit 10 is coupled with a coupling screw 22. And the functional unit 20 are connected. The base unit 10 specifically has the configuration shown in FIG. 2, and a pair of fixing metal fittings 30 as fixing devices are fixed to the disk-shaped base plate 11.

Each fixing member 30 has a rectangular columnar guide column 31 having one open side, an attracting screw 32 inserted from the lower surface side of the base plate 11 through an insertion hole 12 provided in the base plate 11, and an attracting screw 32. And a sandwiching piece 33 screwed to the tip of the. The guide pillar 31 includes a pair of flange pieces 31a protruding along the lower end surface, and the lower end portion of the guide pillar 31 including the flange piece 31a is inserted into the holding recess 13 formed in the peripheral portion of the insertion hole 12 in the base plate 11. At the same time, the guide post 31 is fixed to the base plate 11 by introducing the flange piece 31a into the holding groove 13a formed in a part of the peripheral surface of the holding recess 13. That is, the holding recess 13 opens in a rectangular shape on the upper surface of the base plate 11, and the opening surface of the holding recess 13 is 2 in the longitudinal direction.
When divided, the insertion hole 12 is opened in the vicinity of the center of one half region of the holding recess 13, and the holding groove 13a is formed in the half region on the side where the insertion hole 12 is opened. Therefore, if the lower end of the guide column 31 is inserted into the other half of the holding recess 13 and then the guide column 31 is slid along the longitudinal direction of the opening surface of the holding recess 13, the brim piece 31a.
Is fitted into the holding groove 13a and the guide column 31 is fixed to the base plate 11. Here, the guide column 31 is arranged so that the opening surface faces the outside in the diametrical direction of the base plate 11.

A retraction notch 31b is formed on the upper side of the guide column 31 on the left side surface facing the opening face, and when the attracting screw 32 is loosened, the sandwiching piece 33 is introduced into the retraction notch 31b. Is done. When the attracting screw 32 is tightened in this state, the gripping piece 33 comes out of the retracting notch 31b as the attracting screw 32 rotates clockwise.
As shown in FIG. 1, the tip portion of the sandwiching piece 33 is in a state of protruding from the opening surface of the guide column 31, and in that state, the sandwiching piece 33 is formed.
When the side edge of the contact piece comes into contact with the inner surface of the guide post 31,
3 is prevented from rotating and approaches the base plate 11 while being guided by the guide column 31 as the attracting screw 32 is tightened.

Therefore, a mounting hole having a diameter between the outer diameter of the base plate 11 and the distance between the outer ends of the guide columns 31 is bored in the panel-shaped ceiling material or wall material, and the attracting screw 32 is loosened. After inserting the guide post 31 into the mounting hole with the sandwiching piece 33 protruding from the retracting notch 31b, tighten the attracting screw 32 to sandwich the peripheral portion of the mounting hole between the base plate 11 and the sandwiching piece 33. Then, the base unit 10 can be fixed to the ceiling material or the wall material. To remove the base unit 10 from the ceiling material or the wall material, loosen the attracting screw 32, and the sandwiching piece 33 moves upward along the guide post 31 and is then introduced into the notch 31b for evacuation to remove the guide post 31. It can be pulled out from the mounting hole.

A receiving window 14 penetrating vertically is opened in the central portion of the base plate 11 in a rectangular shape.
A pair of door holding projections 15 are sandwiched on the upper surface of 1 with the receiving window 14 interposed therebetween.
Is projected. The door holding protrusion 15 has a U-shaped horizontal cross section, and a door guide groove 15a having an open inner surface is formed on both leg pieces. The door body 40 is inserted between both leg pieces of each door holding projection 15, and the door guide projections 40a protruding on both side surfaces of the door body 40 are inserted into the door guide groove 15a, whereby the both door bodies 40 are separated. Position to open the receiving window 14 and receiving window 1
It is slidable between the position and the position where 4 is closed.
A spring receiving hole 15b is formed on the inner surface of the central piece of the door holding projection 15.
Opens and holds the door return spring 41 composed of a coil spring between the spring receiving projection 40b provided on the door body 40 and the spring receiving hole 15b. That is, both door bodies 40 are normally biased by the spring force of the door return spring 41 so as to close the receiving window 14. An inclined surface (not shown) that inclines upward toward the tip on the lower surface side of the tip of both doors 40.
Are formed. Therefore, when an upward pressing force is applied to this inclined surface, the door body 40 can be opened against the spring force of the door return spring 41 by the pressing force.

The receiving window 14 has a functional unit 20 which will be described later.
A modular jack 50 provided to insert the modular plug provided in the base plate 11 is electrically connected to the modular plug. The modular jack 50 has a plug insertion recess (not shown) into which a modular plug is inserted on the lower surface side of FIG. 2, and serves as a connection portion electrically connected to a contact of the modular plug in the plug insertion recess. Contact springs (not shown) are provided. Here, as the modular jack 50, one having 8 poles and 8 cores is used.

The modular jack 50 is fixed to the base plate 11 using a jack fixing tool 42. The jack fixing tool 42 is formed in a U shape, and step-like fixing legs 42 a are respectively extended from the lower edges of both leg pieces. Each fixed leg 4
2a is fixed to the base plate 11 with a fixing screw 45. In addition, the jack fixture 42 is provided with a jack holding piece 42b protruding inward at the tip edge of each U-shaped leg piece, and the upper end portion is inside the U-shape from the upper edge of the U-shaped center piece. A retaining piece 42c that protrudes toward is provided. Therefore, when the modular jack 50 is inserted into the U-shape of the jack fixing tool 42, the peripheral edge of the opening of the plug insertion recess contacts the base plate 11 and the downward movement of the modular jack 50 is prohibited.
The peripheral wall of 2 and the jack holding piece 42b prohibit the movement in the horizontal plane, and the retaining piece 42c prohibits the upward movement of the modular jack 50.

Signal line Ls for modular jack 50
Is connected and the modular jack 50 is fixed to the base plate 11 by the jack fixture 42, the terminal cover 16 is mounted on the upper surface of the base plate 11. The terminal cover 16 is formed in a cylindrical shape whose upper surface is closed and whose lower surface is open, and a screw receiving cylinder 16a is projectingly provided on a key portion of the outer peripheral surface. Therefore, the terminal cover 16 is covered with the base plate 11 so as to expose the fixing bracket 30 and cover the modular jack 50, and then, is attached to the screw receiving cylinder 16a through the through hole 17 from the lower surface side of the base plate 11 with a cover mounting screw ( (Not shown) allows the base plate 11
It is fixed to. With the terminal cover 16 coupled to the base plate 11, the signal line Ls is
It is pulled out to the outside through the insertion hole 16d provided in the upper wall.

On the other hand, the functional unit 20 adapted to the above-mentioned base unit 10 is formed such that the modular plug 60 is projected on the upper surface of the body 21, and the modular plug 60 is attached to the modular jack 50 provided on the base unit 10. By being coupled, the functional unit 20 and the signal line Ls are electrically connected. However, the modular plug 60 does not have a function of mechanically coupling with the modular jack 50 to prevent the modular plug 50 from coming off unlike the ordinary modular plug.

On the upper surface of the body 21 of the functional unit 20, a cylindrical tube portion 21a having an inner diameter substantially equal to the outer diameter of the base plate 11 is formed. When the base plate 11 is inserted into the tubular portion 21a and the coupling screw 22 is screwed into the coupling hole 11a formed on the outer peripheral surface of the base plate 11 through the coupling hole 21b penetrating the peripheral wall of the tubular portion 21a, The functional unit 20 is coupled to the base unit 10.

Some functional units 20 have various functions. Regarding the functional unit 20 having each function,
A modular plug 60 that can be electrically connected to the modular jack 50 of the base unit 10 is provided, and the connecting screw 2
If a structure that can be mechanically coupled to the base unit 10 by 2 is adopted as a common structure, the base unit 10 of the same type can be used even if the functions are different.

By the way, a key protrusion 1 is provided on the surface of the base unit 10 facing the functional unit 20. The key projection 1 is formed by forming a suitable number of projections 1a on a straight line, and irregularities are formed on the straight line. The functional unit 20 is formed with a keyway 2 that meshes with the key protrusion 1. Protrusion 1 of key protrusion 1 in keyway 2
The concave grooves 2a corresponding to the number of a are formed. In short, if the base unit 10 and the functional unit 20 are compatible, the number and position of the protrusion 1a of the key protrusion 1 and the concave groove 2a of the key groove 2 are the same. Further, if the numbers of both do not match, the positions of the coupling holes 11a and 21b cannot be matched, so that the functional unit 20 cannot be coupled to the base unit 10. However, if there is a concave groove 2a into which the protrusion 1a can be inserted and the number of the protrusions 1a is equal to or less than the number of the concave grooves 2a, the case where the protrusion 1a is not provided (that is, since there are no protrusions 1a 2a
The number of functional units 20 can be combined with the base unit 10 including the number of the functional units 20.

This relationship is schematically shown in FIGS. 3 and 4. Now, as shown in FIG. 3A, when the key protrusion 1 having two protrusions 1a is provided on the base unit 10, the functional unit 20 is provided with two recessed grooves 2a corresponding to the positions of the protrusions 1a. If the provided keyway 2 is provided, the functional unit 20 is compatible with the base unit 10. However, in the functional unit 20 having no keyway as shown in FIG. 3B, the coupling hole 21b is provided. The base unit 10
Since it is not possible to bring the base unit 10 close to the position corresponding to the connecting hole 11b, it is impossible to connect the both. That is, the functional unit 20 of FIG.
Cannot be fitted to the base unit 10 shown in FIG.

On the other hand, if the functional unit 20 not having the concave groove 2a is provided when the base unit 10 having no protrusion 1a is provided as shown in FIG. It is possible to adapt the functional unit 20 having the concave groove 2a to the base unit 10 as shown in FIG. As described above, by appropriately setting the key protrusion 1 and the key groove 2, the coupling relationship between the base unit 10 and the functional unit 20 can be regulated. In the example shown in FIG. 1, there are four places where the protrusion 1a or the concave groove 2a can be formed, and the base unit 10 can be formed by combining the positions where the protrusion 1a or the concave groove 2a is formed.
And the functional unit 20 are regulated. However, if the number of protrusions 1a is smaller than that of the concave grooves 2a, they can be combined even if the numbers of the protrusions 1a and the concave grooves 2a do not match. It becomes possible to share it.
That is, the base unit 10 having no protrusion 1a can be combined with the functional unit 20 having any groove 2a formed therein.
As a general-purpose base unit for all functional units 20
It is used when it is necessary to share it with. Further, if it is necessary to group functional units 20 having the same type of information transmission function into groups, a part of the protrusion 1a is used for group identification,
The remaining protrusions 1a may be used to identify the group.

Here, when the space for forming the key projection 1 and the key groove 2 is limited and there are many types to be identified, as shown in FIG. 5, one projection 1a is formed stepwise, The types that can be identified can be increased. In the figure, one surface in the thickness direction of the protrusion 1a has a step shape, but it may have both surfaces, or may have a step shape in a direction orthogonal to the thickness direction. The protrusion 1a is provided to the base unit 10 so as to be able to move back and forth, and a piece that becomes the protrusion 1a is provided in the base unit 1.
When the base unit 10 is detachably attachable to a predetermined position of 0, the position and the number of the protrusions 1a in the base unit 10 can be freely changed, and the setting according to the installation place becomes possible at the time of construction. The keyway 2 of the functional unit 20 is set when the functional unit 20 is manufactured. In addition,
Instead of providing the key protrusion 1 on the base unit 10, the key groove 2 may be provided on the base unit 10.

(Embodiment 2) As shown in FIGS. 6 to 8, there is also an embodiment in which the form of mechanical coupling between the base unit 10 and the functional unit 20 is different. That is, instead of the fixing screw 22, as shown in FIGS. 6 and 7, the two hooking claws 2 protruding from the upper surface of the body 21 of the functional unit 20.
3a and 23b are provided, and as shown in FIG. 8, the hooks 18a and 18b provided on the base unit 10 are hooked on the hooks 23a and 23b.
23b is engaged.

The functional unit 20 has hooking claws 23a,
By inserting 23b into the hooking holes 18a, 18 of the base unit 10 and then rotating the hooks, the tip ends of the hooks 23a, 23b formed in the inverted L shape are hooked with the hooking holes 18a, 18b.
Since it is engaged with the peripheral portion of 18b, the modular plug 60 provided in the functional unit 20 and the base unit 1
The functional unit 20 must be rotatable with respect to the base unit 10 with the modular jack 50 provided on the 0.

Therefore, as shown in FIG. 7, the modular plug 60 of the functional unit 20 is attached to the disk-shaped base plate 24, and is embedded in the surface of the body 21 of the functional unit 20 facing the base unit 10. The base plate 24 is rotatably held on the rotary table 25. A notch 25a is formed at one location on the periphery of the rotary table 25, and a stopper 24a protruding from the peripheral edge of the base plate 24 is inserted into the notch 25a to regulate the rotation range of the base plate 24 with respect to the rotary table 25. To be done. A return spring 26, which is a coil spring, is disposed between the base plate 24 and the rotary base 25. One end of the return spring 26 is connected to a spring hook 24b provided on the base plate 24, and the other end is connected to the rotary base 25. Is coupled to the spring seat 25b provided on the. In the state where the functional unit 20 is not coupled to the base unit 10, the base plate 24 has the stopper 24a in contact with the A surface of the cutout portion 25a shown in FIG. Unit 10
When it is combined with and rotated, it stops at a position where the stopper 24a abuts the B surface of the cutout portion 25a. Further, if it is removed from the base unit 10, it is returned to its original position by the elastic force of the return spring 26. The return spring 26 need only have a large elastic force as long as it can return the base plate 24 to its original position.

The base unit 10 has basically the same structure as that of the first embodiment, and the members with the same reference numerals have the same functions. The main difference from the first embodiment is that arc-shaped hooking holes 18a and 18b are formed, and the projecting wall 27 is formed on the outer peripheral edge of the hooking holes 18a and 18b and on the upper surface side of the base unit 10. Are formed. Key protrusion 1
Is formed on the inner surface of the projecting wall 27, and the functional unit 20
It engages with the keyway 2 formed on the outer side surfaces of the hooking claws 23a and 23b. The relationship between the key protrusion 1 and the key groove 2 is the same as that in the first embodiment, but in the first embodiment, the protrusion 1 a
In contrast to the direction in which the protrusion of (1) is aligned with the direction in which the base unit 10 and the functional unit 20 are coupled, in the present embodiment, both directions are substantially orthogonal. In other words, if the key projection 1 is slid in the direction orthogonal to the projection 1a while the key groove 2 is engaged with the key projection 2, and if the tip ends of the hooking pieces 23a and 23b can pass over the projection wall 27, the functional unit 20 is transferred to the base unit 10. It can be rotated with respect to. Other configurations and operations are the same as those of the first embodiment.

(Embodiment 3) In each of the above embodiments, the modular plug 60 of the functional unit 20 is inserted into the modular jack 50 of the base unit 10 from the bottom to the top. By sliding the unit 20 in the horizontal plane, the base unit 1
0 and the functional unit 20 are connected to each other. That is, as shown in FIG. 9, a modular plug 60 is projectingly provided on the upper surface of the body 21 of the functional unit 20, and the modular plug 60 moves to the modular jack 50 by moving in the direction along the upper surface of the body 21. It is arranged to be plugged in. In addition, a lock protrusion 28 is provided in the vicinity of the modular plug 60 so as to be capable of advancing and retracting from the upper surface of the body 21. The lock projection 28 is continuously and integrally provided at the tip of the short piece side of the spring body 31 made of synthetic resin of substantially J-shape as shown in FIG. 10, and is provided at the tip of the long piece side of the spring body 31 of substantially J-shape. When the lock release button 32 exposed on the outer peripheral surface of the body 21 is pressed, the lock projection 28 is retracted from the upper surface of the body 21. Since a pair of lock protrusions 28 are provided, a pair of lock release buttons 32 are also provided, and the lock release buttons 32 are exposed on both sides of the body 21 in the diametrical direction.

The modular plug 60 is fixed onto a pedestal 61 projecting from the upper surface of the body 21 of the functional unit 20, and the upper surface of the pedestal 61 and the insertion portion of the modular plug 60 into the modular jack 50. A gap 62 is formed between the lower surface and the lower surface. Keyways 2 on both sides of the pedestal 61
Is formed. On the other hand, a rectangular receiving window 14 is formed in the base unit 10 at a position deviated from the center of the base plate 11, and the receiving window 1 is formed on the upper surface side of the base plate 11.
A jack fixing tool 46 is fixed to the vicinity of 4 by a mounting screw 47. The jack fixture 46 is a pair of left and right wall portions 46.
The bottom wall of the portion having a and corresponding to the receiving window 14 is open. A modular jack 50 is held between both wall portions 46a of the jack fixing tool 46, and a key protrusion 1 running in a direction in which the modular plug 60 is inserted into the modular jack 50 is provided on an inner surface of both wall portions 46a of the jack fixing tool 46. Is projected. Further, the modular jack 50 is arranged above the key protrusion 1.

However, the functional unit 20 is inserted into the base unit 10 through the receiving window 14 through the modular plug 60 and the pedestal 61, and the functional unit 20 is inserted into the key groove 2 as shown in FIGS. When it is slid with respect to 10, the modular plug 60 is inserted into the modular jack 50. Here, when the key projection 1 is engaged with the key groove 2, the lower surface of the modular jack 50 substantially coincides with the upper surface of the pedestal 61.
Is positioned so that the lower part of can be introduced into the gap 62.
Therefore, the modular plug 60 can be inserted into the modular jack 50 as long as the key protrusion 1 and the key groove 2 are formed in a shape capable of meshing with each other. At the inserted position, the functional unit 20 is aligned with the center of the base unit 10. In this state, the lock projection 28 of the functional unit 20 engages with the lock recess 29 formed on the lower surface of the base unit 10 to prevent the functional unit 20 from coming off. Is done. To remove the functional unit 20 from the base unit 10, the functional unit 20 may be slid in the direction opposite to that when the functional unit 20 is coupled while the lock release button 32 is being pressed. Key protrusion 1 and key groove 2
Need only be formed in a slidable manner as in the second embodiment, and the members designated by the same reference numerals as those in the first embodiment in the drawings function similarly to the first embodiment.

In the first to third embodiments, the connection with the functional unit 20 is limited depending on whether or not the protrusion 1a of the key protrusion 1 is provided at a predetermined position.
The functional unit 20 is configured by appropriately changing the interval and width of the protrusions 1a.
You may restrict the connection with. If the key protrusion 1 is provided inside the base unit 10 as in the second and third embodiments, the change by the user is prohibited. Further, in the case where the key projection 1 is exposed on the lower surface side of the base unit 10 as in the first embodiment, the setting state of the key projection 1 can be easily confirmed.

(Embodiment 4) In the above-described embodiment, the key protrusion 1 and the key groove 2 are mechanically engaged with each other,
Although the connection relationship between the functional unit 20 and the base unit 10 is regulated, in the present embodiment, the functional unit 20 is attached to the base unit 10 while the functional unit 20 and the base unit 10 are mechanically connectable. If it does not match, the function is disabled. That is, means for determining whether or not the functional unit 20 is compatible with the base unit 10 and means for invalidating the function when the functional unit 20 is not compatible are required, and optical identification is used as means for determining compatibility. Are doing.

Here, as shown in FIG. 13, the base unit 10 includes a light emitting portion 71 such as a light emitting diode, and a light emitting portion 71.
A light receiving portion 72 such as an SD or a photodiode is provided. The functional unit 20 is provided with an optically readable identification mark 3. As the identification mark 3, as shown in FIG. 13, a functional unit 20 having a concavo-convex surface aligned in a straight line, or, as shown in FIG. 14, a portion having a different reflectance on a straight line on a flat surface of the functional unit 20. (A shaded area indicates the area where the reflectance is different)
An array of is used.

The light emitting portion 71 scans the light beam on the identification mark 3, and for the identification mark 3 which is an uneven surface, a PSD or the like is used for the received light 72 to obtain the distance between the concave portion and the convex portion, and the identification mark is obtained. 3 is recognized, and for the identification mark 3 having different reflectance, a photodiode or the like is used to obtain the change in the amount of received light due to the difference in reflectance, and the identification mark 3 is recognized.

That is, as shown in FIG. 15, the base unit 10 includes a signal processing section 70 mainly composed of a microcomputer, and the signal processing section 70 drives the light emitting section 71 via the signal converting section 74. A light reception signal from the light receiving unit 72 is input via the signal conversion unit 75. Here, the base unit 10 is individually set in the memory unit 76, and the control unit 77 uses this address to exchange data with the processing unit 80 through the communication interface 78 and the wired signal line Ls. To do. The processing unit 80 is shown in FIG.
6, the signal line Ls is connected through the communication interface 81. The processing unit 80 includes a control unit 82 including a microcomputer, and controls the base unit 10 based on the information obtained from the base unit 10. In the memory unit 83, mark data of the type of the functional unit 20 that can be adapted to each base unit 10 is registered.
The control unit 82 collates the identification mark 3 detected by the base unit 10 with the mark data stored in the memory unit 83. Here, if the two match, the control unit 82 permits the operation of the base unit 10, and if the two do not match, the base unit 10 causes the signal line L of the functional unit 20.
Terminate the connection to s. Here, the signal line used for collating the identification mark and the signal line for transmitting the data input / output to / from the functional unit 20 may be shared or may be provided separately.

When storing data in the memory unit 83, the input unit 84 such as a keyboard may be operated, and the connection state between the base unit 10 and the functional unit 20 is C.
It is displayed on the display unit 85 including an RT and a liquid crystal display. The above operation will be briefly described as shown in FIG. That is, the functional unit 20 is added to the base unit 10.
When is combined, the light emitting section 71 is caused to emit light intermittently (S1) and the reflected light is received by the light receiving section 72 (S2). If the light emitting section 71 is constantly blinked, power is consumed without permission,
The base unit 10 is provided with a switch or the like for detecting the coupling of the functional unit 20, and the light emitting unit 7 is operated for a certain time after the coupling.
1 may be made to emit light. Next, the identification mark 3 read by the light receiving unit 72 is converted into a signal (S3), and an empty pair of signal lines (a twisted pair cable is used and an unused pair is used for transmission of the identification mark 3) is used. The identification mark 3 is transferred to the processing section 80 (S4). When the processing unit 80 receives the identification mark 3 (S
5) The identification mark 3 is collated with reference to the memory section 83 (S6). If the identification mark 3 matches the registered one, the matching match is notified to the base unit 10 by using an empty pair of signal lines (S7). When you receive this notification,
The base unit 10 connects the functional unit 20 to the signal line (S8). If the identification marks 3 do not match,
The connection to the signal line of the functional unit 20 is stopped (S
9).

As described above, by using the address of the base unit 10, it is possible to limit the matching relationship with the functional unit 20 for each base unit 10,
Moreover, this matching relationship can be changed by the data registered in the memory unit 83. That is, it is possible to change the conformity relationship after the construction, and it is possible to easily deal with a change in the layout of the room. Further, although the identification mark 3 is formed by providing unevenness or changing reflectance at a predetermined position, it is used as the identification mark 3 by changing the width or interval of providing unevenness or the width or interval of changing reflectance. It is also possible to do so.

[0053]

According to the first aspect of the present invention, a base unit is connected to a signal line laid on a building as a transmission line for various kinds of information and fixed to the building so that at least a part thereof is exposed from the building surface. In a wiring device for multimedia, which has an information transmission function and is connected to a base unit and which is connected to a signal line through the base unit, when the base unit and the function unit can be combined with each other Since the key part that allows mechanical connection between the base unit and the functional unit is formed only on the, the combination of the base unit and the functional unit can be restricted by the key part, and the functional units that can be combined are determined. Installed base unit, install a base unit with a key part that matches the function unit. Fluff, there is an advantage that never erroneously binding relationship between the base unit and the functional unit.

According to the invention of claim 6, the key portion comprises a key projection provided on one of the base unit and the functional unit and a key groove provided on the other and engageable with the key projection. Since it can be changed on the side,
Since the setting of the key part can be changed on the base unit side, the key part can be set appropriately when the base unit is installed, and the functional unit can be adapted according to the purpose. In addition, since the setting of the key part can be changed, the base unit having the same configuration can be used, and there is an advantage that it is possible to regulate the compatibility relationship with various functional units only by changing the setting of the key part. is there.

According to a seventh aspect of the present invention, a base unit which is connected to a signal line laid on the building as a transmission path for various information and is fixed to the building so that at least a part thereof is exposed from the building surface, and information transmission. In a multimedia wiring device having a functional unit that has a function and is coupled to a base unit and connected to a signal line through the base unit, the base unit includes a light emitting unit that emits light toward the functional unit. , A light receiving unit for receiving the reflected light from the functional unit, the functional unit is formed with an identification mark indicating the type of the functional unit at a position where the light receiving unit receives the reflected light of the light emitted by the light emitting unit, A processing unit provided separately from the base unit and the functional unit identifies the identification mark detected by the light receiving unit and performs processing according to the identification mark. This is to optically detect the type of the functional unit in a non-contact manner, and because the detection information of the identification mark is transferred to the processing unit as a signal, the compatibility relationship between the functional unit and the base unit is illegally changed. There is an advantage that it becomes difficult. Further, by transferring the detection information of the identification mark as a signal to the processing unit, the type of the functional unit can be detected by this signal, so that the processing unit can know the connection state of the functional unit, It has the advantage of easy management.

In the tenth aspect of the invention, the processing unit has a function of stopping the connection with the functional unit when the identification mark does not match the mark data set in advance, and the mark data set in the processing unit can be changed. Therefore, by making it possible to change the setting of the mark data in the processing unit, it is possible to adapt a functional unit according to the purpose and to use the same unit as the base unit. It is possible to regulate the compatibility relationship with various functional units only by changing the setting of. Furthermore, if the identification data does not match the mark data set in the processing unit, the connection with the functional unit is stopped, and the incompatible functional unit does not function.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment.

FIG. 2 is an exploded perspective view showing a base unit used in the first embodiment.

FIG. 3 is a diagram illustrating an operation example of the first embodiment.

FIG. 4 is a diagram illustrating an operation example of the first embodiment.

FIG. 5 is a perspective view showing an example of a key protrusion used in the first embodiment.

FIG. 6 is a perspective view showing a functional unit used in the second embodiment.

FIG. 7 is an exploded perspective view of essential parts showing a functional unit used in a second embodiment.

FIG. 8 is an exploded perspective view showing a base unit used in the second embodiment.

FIG. 9 is an exploded perspective view showing a third embodiment.

FIG. 10 is a side view showing a lock member used in the third embodiment.

FIG. 11 is a perspective view of a main part of the third embodiment.

FIG. 12 is a front view of a main part of the third embodiment.

FIG. 13 is a schematic configuration diagram of a fourth embodiment.

FIG. 14 is a schematic configuration diagram of a fourth embodiment.

FIG. 15 is a block diagram of a base unit used in the fourth embodiment.

FIG. 16 is a block diagram of a processing unit used in the fourth embodiment.

FIG. 17 is an operation explanatory diagram of the fourth embodiment.

[Explanation of symbols]

 1 Key Protrusion 2 Keyway 3 Identification Mark 10 Base Unit 14 Receiving Windows 18a, 18b Hooking Hole 20 Functional Units 23a, 23b Hooking Claw 45 Jack Fixing Tool 45a Wall Part 50 Modular Jack 60 Modular Plug 71 Light Emitting Part 72 Light Receiving Part 80 Processing Part Ls signal line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Ikeda 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works Co., Ltd. Within

Claims (10)

[Claims] 1. A base unit having an information transmission function, and a base unit which is connected to a signal line provided on a building as a transmission path for various information and is fixed to the building so that at least a part thereof is exposed from the building surface. In a wiring device for multimedia including a functional unit coupled to the unit and connected to a signal line via the base unit, the base unit and the functional unit are included in the base unit and the functional unit only when they can be combined with each other. A wiring device for multimedia, characterized in that a key portion that allows mechanical coupling with is formed. 2. One of the base unit and the functional unit has a tubular portion into which a portion of the other is inserted, and a fixture inserted through a coupling hole penetrating the peripheral wall of the tubular portion is provided on the other side. The base unit and the functional unit are coupled by being inserted into the coupling hole, and the opposing faces of the base unit and the functional unit are aligned with the coupling holes of the base unit and the functional unit when they can be combined with each other. The wiring device for multimedia according to claim 1, wherein a key portion for controlling the position is formed. 3. A key projection of a base unit, which is formed at an appropriate position on a surface of the base unit facing the functional unit, and which protrudes from the facing surface, and which can be combined with the surface of the functional unit facing the base unit. The wiring device for multimedia according to claim 2, wherein a key groove into which the protrusion is inserted is formed, and a key portion is formed by the key protrusion and the key groove. 4. When the functional unit is inserted into a hook hole formed in the base unit and then rotated with respect to the base unit, the functional unit is locked to the periphery of the hook hole and the functional unit is coupled to the base unit. 2. A hook portion for forming a hook is formed, and a key portion that allows the hook to be introduced into the hook hole is formed on the periphery of the hook hole and the side surface of the hook when they can be combined with each other. Wiring equipment for multimedia. 5. The base unit has a built-in modular jack connected to a signal line and a jack fixing tool for connecting the modular jack to the base unit, and a receiving surface of the functional unit facing the base unit is provided with an opening to the base unit. When inserted into the base unit through the window and slid along the surface facing the base unit, a modular plug that is guided by the wall of the jack fixture and inserted into the modular jack is projected, and the wall of the jack fixture and the modular plug are projected. The wiring device for multimedia according to claim 1, wherein a key portion is formed on a side surface of the plug to allow movement of the modular plug when the plug is combinable with each other. 6. The key portion comprises a key projection provided on one of the base unit and the functional unit and a key groove provided on the other and engageable with the key projection, and the setting of the key portion can be changed on the base unit side. The wiring device for multimedia according to any one of claims 1, 2, 4, and 5, characterized in that there is. 7. A base unit having an information transmission function, and a base unit that is connected to a signal line wired to a building as a transmission path for various information and is fixed to the building so that at least a part thereof is exposed from the building surface. In a wiring device for multimedia including a functional unit coupled to the unit and connected to a signal line via the base unit, the base unit includes a light emitting unit that emits light toward the functional unit and a functional unit The functional unit is provided with a light receiving section for receiving the reflected light, and an identification mark indicating the type of the functional unit is formed at the position where the light receiving section receives the reflected light of the light emitted by the light emitting section. A processing unit, which is provided separately from the above, identifies the identification mark detected by the light receiving unit and performs processing according to the identification mark. Wiring equipment for rutimedia. 8. The wiring device for multimedia according to claim 7, wherein the identification mark is formed as a concavo-convex surface aligned in a straight line, and the light emitting section scans the light beam in a direction in which the concavo-convex surface is arranged. 9. The identification mark is formed such that portions having different reflectances are aligned on one plane, and the light emitting portion scans the light beam in a direction in which the portions having different reflectances are arranged. The wiring device for multimedia according to claim 7. 10. The processing unit has a function of canceling the connection with the functional unit when the identification mark does not match the marked mark data, and the mark data set in the processing unit can be changed. The wiring device for multimedia according to any one of claims 7 to 9.