A wiring structure for interior units

Abstract: The present invention provides a wiring structure for interior units to be adopted in an interior structure of a vehicle, a building and so on, whereby various electric devices can be installed in advance and wires to be distributed therebetween can also be performed previously in each of the units which are constructed by suitably dividing and unifying the interior members of the vehicle or the like, so that the wiring operation within each of the interior units is greatly facilitated, and also a plurality of electric wire distributions can be simultaneously performed, thereby the time to be required for these operations are greatly reduced. Although the wiring structure as described above can be basically composed by: installing electric devices as incidental equipments in each of the units; supportingly providing electric wires necessary for the electric devices on the back surface of each unit; forming an aperture in the nearby region of joint portions of the respective units; disposing connectors at the end portions of the respective electric wires in such a manner that the connectors are facing to and engageable with each other at the aperture; and disposing a lid portion for closing the aperture, various arrangements can be applied to this construction such as that the connectors disposed in the units are respectively movable and fixed and so on.

Description: BACKGROUND OF THE INVENTION Field of the Invention The present invention refers to a wiring system according to the preamble of claim 1 or 6. Description of the Prior Art In case, for example, of adopting unification of interior members to be installed in a railway vehicle, a conventionally disclosed unification is performed in such a manner that only each of panel surfaces to be mounted on the ceiling, longitudinal-side walls and lateral-side walls within the vehicle is unified to be a unit, wherein wiring structure for the electric devices installed therein is, as conventionally done, performed by taking advantage of tubes, cable ducts, cable supporter and so on which are mounted in advance in the vehicle body. Accordingly, the construction described above provides a very narrow working space and a poor working condition to a service personnel specially for his wiring operation under the floor of the railway vehicle where the service personnel has to work looking upward the whole time, and thereby substantially long time is required for completing the wiring operation. In order to solve this problem, there has been disclosed a new technology in Japanese Patent Laid-Open No.2-6265. However, the method disclosed therein is targeted only for facilitating wiring operation under the floor, so that although working condition is somehow facilitated thereby, the wiring operation itself in a working place can not be abbreviated at all. For this reason, there has been disclosed another method as shown in Fig. 5 wherein the interior members to be installed are divided and unified as the respective ceiling units 1 and 2, a panel unit 3 and so on, which are thereafter connected to each other directly or by way of an adjusting member 4 disposed for absorbing errors in measurement, wherein each of the units is provided with various electric devices in advance such as a fan 5, and a fluorescent lamp 6, and also with necessary electric wires 7 and 8, so that when the respective units 1 and 2 are installed on the railway vehicle, the electric wires 8 and 8′ of the respective units are connected through the connectors 9 and 9′ which are respectively disposed at the connection terminals of the electric wires of the respective units. In this ease, however, the connection between the connectors 9 and 9′ of the respective units 1 and 2 is performed at the ceiling side, in other words, at the back surface of the units, which can cause such problems regarding the connecting method therebetween as follows. For example, if a method in which wires 8 and 8′ are set longer so as to previously connect the connectors 9 and 9′ is adopted, the slacken wires and the connectors are vibrated during the vehicle is running, which can be a cause of the noise, and also can be a cause of destruction of the connectors. On the other hand, if the wires are set shorter, then the connecting operation can be rather difficult. SUMMARY OF THE PRESENT INVENTION The present invention is provided for eliminating the forgoing facts, and it is an object of the present invention to provide a wiring structure which can be easily performed in the vehicle body in a substantially short time. The above mentioned object is solved by the features in the characterizing portion of claim 1 or 6. Further embodiments of the invention are claimed in the subclaims 2, 3, 4, 5 and 7. In operation, the interior members are divided into plurality of units of a suitable size, and when forming these individual units, installation of electric devices and necessary wirings are fixedly mounted on the rear surface of the respective units, and the connectors are disposed at the respective wire ends. Whereafter, the connectors disposed at the respective wire ends are engageably connected at the aperture formed in the nearby regions of the respective adjacent units, and the aperture is closed by a lid portion. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: Fig. 1 is a perspective view showing an important portion of the wiring structure for interior units according to the present invention; Figs. 2A, 2B and 2C represent a second embodiment according to the present invention, wherein Fig. 2A is a perspective view observed from an inner-room side, Fig. 2B is a perspective view observed from a mounting base side, and Fig. 2C is a sectional view observed along the line I - I shown in Fig. 2A; Figs. 3A, 3B and 3C represent a third embodiment of the present invention, wherein Fig.3A is a perspective view observed from an inner-room side, Fig.3B is a perspective view with a lid portion thereof removed, and Fig. 3C is a sectional view observed along the line II - II shown in Fig. 3B; Figs. 4A and 4B represent a fourth embodiment of the present invention, wherein Fig. 4A is a perspective view observed from an inner-room side, Fig. 4B is a perspective view observed from a mounting base side; and Fig. 5 is a perspective view showing a wiring structure according to the prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the present invention which are applied within a railway vehicle are described with reference to the drawings. Fig. 1 shows a first embodiment of the present invention, wherein reference numerals 11 and 12 respectively denote interior units such as ceiling units and so on in which electric devices (not shown) are installed and electric wires which are required for these electric devices are disposed in a form of bundles as wire bundles 13 and 14. These installation of the electric devices and distribution of the electric wires can be performed when manufacturing these units, whereby these operations are substantially facilitated, and further a plurality of units can be mounted at the same time. Here, the unit 11 is provided with a down-step portion at one end thereof for receiving an end portion of the other unit 12, whereas the end portion of the unit 12 is formed with an aperture 15 having a lid portion 17 connected thereto by way of hinges 16. Reference numeral 18 denotes a movable connector which is connected to the end portion of the wire bundle 13, but not fixed to any other place. Reference numeral 19 denotes a fixed connector which is connected to the end portion of the wire bundle 14 and is settled at the nearby region of the aperture 15 of the unit 12. Further, the location of the movable connector 18 can be shifted to the maximum redundant length of the wire bundle 13 in the direction indicated by an arrow A, so that it can be engaged with the fixed connector 19. In the above structure, when the lid portion 17 is opened after the units 11 and 12 are installed on a mounting base of the vehicle body (not shown), the movable connector 18 can be easily engaged with the fixed connector 19, and its engaging operation is finished when the lid portion 17 is closed. The slackness of the wire bundle 13 can be determined as short as the minimum length just required for engagement of the connectors, and since the connectors after engagement becomes in the fixed state, problems such as vibrating phenomenon during the vehicle is running will no longer occur. By the way, although the lid portion 17 is normally closed by a fixing means, it can alternatively be closed by way of a spring applied to the respective hinges 16, so that the closed state thereof is maintained because of the repulsive force of these hinges. Figs. 2A to 2C represent a second embodiment of the present invention, wherein a slide groove 17a is formed on the back surface of the lid portion 17 so that the lid portion 17 can be slidably opened or closed in the direction indicated by an arrow A within the aperture 15, and in this case, the movable connector 18 is attached to the movable lid portion 17. Accordingly, if the connector 19 of the unit 11 side is a fixed connector, the both connectors 18 and 19 are engaged with each other by simply closing the lid portion 17, and the wire bundles 13 and 14 are thereby connected. Further the lid portion 17 can be so arranged as to slide in the direction indicated by an arrow B as well by constructing the slide groove 17a more deeply for absorbing errors in measurements which can occur between the units 11, 12 and a mounting base on which these units 11 and 12 are to be installed. Figs. 3A to 3C represent a third embodiment of the present invention, wherein the units 11 and 12 adjacent to each other are formed respectively with sliding bases 20 and 21, and on these sliding bases 20 and 21, movable connectors 18 and 18′ are slidably mounted respectively. Here, the connector 18 of the unit 11 side is slidable in the direction indicated by an arrow B, and the other connector 18′ of the unit 12 side is slidable in the direction indicated by an arrow A, which are crossing at right angles. By the way, the lid portion 17 is formed with short circuiting connectors 22 and 22′ which are to be engaged respectively with the movable connectors 18 and 18′, wherein a connecting member 22a for electrically connecting these short-circuiting connectors 22 and 22′ is further disposed therebetween, whereby the distance between these connectors 22 and 22′ is fixed and they are maintained in a short-circuited state. Since the structure is as such, if the aperture 15 is closed by the lid portion 17 after fixing the units 11 and 12 to the mounting base, then the short circuiting connectors 22 and 22′ are engaged respectively with the movable connectors 18 and 18′ and thereby connecting the wire bundles 13 and 14. In this case, the lid portion 17 is maintained by the engaging force of these connectors, and because of this, fixing means is no longer required. By the way, another alternative arrangement is performed such that the short circuiting connectors of the lid portion 17 are disposed as being movable in the directions A and B, and fixed connectors are disposed at the mounting base side, or otherwise, of course, both the connectors on the lid portion and those on the mounting base side can be formed as being movable. Figs. 4A and 4B represent a fourth embodiment of the present invention, which is characterized in that there is no aperture disposed therein. In the nearby regions of the respective units 11 and 12, screw-fastening type connectors 23 and 23′ are respectively connected to the end portions of the respective wire bundles 13 and 14, and mounting bolts 25 and 25′ are disposed inserting through the holes 24 and 24′ which are penetrating the respective units. On the other hand, on the mounting base 26 on which the units 11 and 12 are to be installed, short-circuiting connectors 27 and 27′ engageable with the both connectors 23 and 23′ of the respective units 11 and 12 are firmly fixed. The short-circuiting connectors 27 and 27′ are formed in an integral shape, wherein these connectors are short-circuited by way of an inner wiring 27c, and female screws 27a and 27b for respectively receiving the mounting bolts 25 and 25′ are formed therein. In this structure, after placing the unit 12 on the down-step portion 11a of the unit 11 which is adjacent to the unit 12, the connectors 23 and 23′ are respectively engaged with the short-circuiting connectors 27 and 27′ by way of the mounting bolts 25 and 25′, and thereby the units 11 and 12 are fixed onto the vehicle body by way of the mounting base 26 at the same time. By the way, the above wiring structure is applicable to any of a wall, floor, ceiling, and also to various objects such as vehicles other than the railway vehicle, buildings and so on. [Effects of the Invention] As described so far, in accordance with the present invention, various electric devices can be installed in advance and wires therebetween can also be previously distributed in each of the units composing interior members of a vehicle, and the thus unified and distributed wires or wire bundles are easily connected on the back surface of the each unit so as to facilitate the wiring operation within each interior unit, whereby a plurality of electric wire distributions can be simultaneously operated, and thereby reducing required working period.

Claims: A wiring system for joining first and second electrical wires (13, 14) disposed upon a first side of a support surface (11, 12) to each other; said first and second electrical wires (13, 14) having connector means (18, 19) disposed upon terminal ends of said first and second electrical wires (13, 14) for interconnecting said first and second electrical wires (13, 14) together with each other; characterized in that said wiring system comprises: means for permitting one of said terminal ends of said first and second electrical wires (13, 14) to be movably supported with respect to said first side of said support surface (11, 12); aperture means (15) defined within said support surface (11, 12) at a position at which said connector means (18, 19) of said first and second electrical wires (13, 14) are to be interconnected together to each other so as to provide access to said connector means (18, 19) of said first and second electrical wires (13, 14) from a second side of said support surface (11, 12) and enable manipulation of said electrical connector means (18) disposed upon said movable one of said terminal ends of said first and second electrical wires (13, 14) so as to permit interconnection of said connector means (18, 19) of said terminal ends of said first and second electrical wires (13, 14); and lid means (17) disposed upon said support surface (11, 12) for providing access to said aperture means (15) and said connector means (18, 19) of said first and second electrical wires (13, 14) when said lid means (17) is disposed in an open position, and for sealingly closing said aperture means (15) and covering said interconnected terminal ends of said first and second electrical wires (13, 14) when said lid means is disposed in a closed position. A wiring system as claimed in claim 1, wherein: said terminal end portion of said first electrical wire (13) movably supported upon said support surface has a predetermined length which is just sufficient for permitting said connector means (18) of said movably supported electrical wire terminal end portion to engage said connector means (19) of the other one of said electrical wire terminal end portions when said movably supported terminal end portion is moved from a first, slackened position at which said connector means (18) of said movably supported electrical wire terminal end portion is disconnected from said connector means (19) of said other one of said electrical wire terminal end portions, to a second, extended position at which said connector means (18) of said movably supported electrical wire terminal end portion is connected to said connector means (19) of said other one of said electrical wire terminal end portions. A wiring system as claimed in claim 1, wherein: said movable connector means (18) is attached to said lid means (17); and said lid means (17) is disposed upon said support surface (11, 12) in such a manner as to be slidable in the direction in which said movable connector (18) is movable so as to be engaged with said connector means (19) of the other one of said electrical wire terminal end portions. A wiring system as claimed in claim 3, wherein: said lid means (17) is formed also slidable in a direction which crosses said direction in which said movable connector means (18) is movable so as to be engaged with said connector means (19) of the other one of said electrical wire terminal end portions for absorbing errors in connection with the relative disposition of said first and second electrical wires (13, 14). A wiring system as set forth in claim 1, wherein: said lid means (17) is hingedly mounted upon said support surface (11, 12) so as to be hingedly movable between said open and closed positions. A wiring system for joining two electrical wires (13,14) disposed on the same side of two support surfaces (11,12) to be coupled with one another via respective coupling portions thereof to form a unit, said two electrical wires (13,14) having terminal ends disposed at the coupling portions of said two support surfaces (11,12) and being provided with connectors (23,23) for interconnecting said two electrical wires (13,14), characterized in that said connectors (23,23′) of said two electrical wires (13,14) interconnected through short-circuiting connectors (27,27′) which are provided on a mounting base (26) disposed visa-vis said same side of said coupling portions thereof, said short-circuiting connectors (27,27′) being adapted to engage said connectors (23,23′) of said two electrical wires (13,14), fastening means (25,25′,27a,27b) are provided for fastening said coupling portions of said two support surfaces (11,12) and for simultaneously causing electrical engagement of said short-circuiting connectors (27,27′) with said connectors (23,23′) of said two electrical wires (13,14) as said coupling portions of said two support surfaces (11,12) are fastened to said mounting base (26) by said fastening means (25,25′,27a,27′). The wiring system according to claim 6, characterized in that said fastening means 25, 25′, 27a, 27b) comprises screws (25, 25′) which simultaneously penetrate holes (24, 24′) in said coupling portions of said two support surfaces (11, 12) and in said connectors (23, 23′) of said two electrical wires (13, 14) and which engage screw holes (27a, 27b) in said short-circuiting connectors (27, 27′) being defined within said mounting base (26), said connectors (23, 23′) of said first and second electrical wires (13, 14) comprise electrical pin connectors and said short-circuiting connectors (27, 27′) of said mounting base (26) comprise elektrical pin sockets for receiving said electrical pin connectors.

Inventors: ARAKI YOICHIRO C O KAWASAKI JU, GOTO FUMIYA C O KAWASAKI JUKOG, ARAKI, YOICHIRO, C/O KAWASAKI JUKOGYO K. K., GOTO, FUMIYA, C/O KAWASAKI JUKOGYO K. K.
Applicants: KAWASAKI HEAVY IND LTD, KAWASAKI JUKOGYO KABUSHIKI KAISHA
Application year: 1991
Main classification: H02G3
IPC codes: B61D17, B61D29, H01R31, H02G3, H01R25