JP5701578B2 - Relay box for electronic equipment of printing press - Google Patents

Description

  The present invention relates to an electronic device relay box for a printing press used in an oil shower environment.

  In this type of relay box for electronic devices, many electronic devices such as motors and sensors provided in the printing unit of the printing press and the control device are relayed via cables to be electrically connected. ing. To connect these electronic devices and the control device, an electronic device relay box is arranged in the center of each printing unit, and each cable drawn from a plurality of electronic devices provided in the printing unit is relayed to the electronic device. It is electrically connected to the terminal block or connector in the box, and another cable drawn from the terminal block or connector is bundled to be electrically connected to one control device arranged at one corner in the printing unit. Yes.

  The relay box for electronic devices provided in the printing unit as described above is installed in an oil shower environment, so it needs to be oil-proofed and the structure becomes complicated, and the number of parts such as seal members There has been a problem that the manufacturing cost increases due to the increase in the number of the particles. In addition, when the cables drawn from each electronic device are electrically connected to the terminal block or connector in the electronic device relay box, since the electronic device relay box is attached to the printing unit, the work space is narrow. There was also a problem that workability was poor for the reasons described above.

  The present invention has been made in view of the above-described conventional problems, and its object is to reduce the manufacturing cost and improve the workability of cable wiring.

In order to achieve this object, the present invention relates to an electronic device of a printing machine that relays a first cable drawn from an electronic device provided in the printing machine and is electrically connected to a control device via a second cable. In the device junction box, the first connector to which the first cable is electrically connected, the second connector to which the second cable is electrically connected, and the first cable are bundled together. A first support portion that supports the second connector in a state where the first connector is connected to the upper side of the second connector and there is a space below the second connector; The first connector is connected to the lower side of the second connector, and includes a second support portion that supports the second connector in a state where there is a space on the lower side of the first connector. Introducing the first and second cables A support member cable introduction and outlet is provided for deriving,
A tube member for introducing the second cable into the lower space, the first and second connectors, and the lower space are disposed above the first connector or the second connector. It consists of a cover that covers in a certain state.

  The present invention includes a separator that supports the second connector in the first and second support portions so as to be insertable / removable, and holds the first cable without being bundled. A third support part is provided for supporting the separator so that the separator can be inserted and removed, and the support member is provided with an insertion / removal opening for inserting and removing the first connector and the separator in the first to third support parts. It is a thing.

  According to the present invention, since the first cables introduced from the cable introduction port of the cover are held without being bundled so as to be spaced apart from each other, the oil is introduced into the inside of the electronic device relay box by the surface tension from the gap between the cables. Infiltration can be prevented. In addition, since the first and second connectors are covered by the cover, the oil dripping from above the electronic device relay box does not enter the electronic device relay box. In addition, since a space is provided below the first connector, the first and second connectors are lifted from the cable inlet / outlet port of the cover. Even if it penetrates, the penetration of oil into the first and second connectors can be restricted. In addition, it does not require a structure for extending the oil infiltration path as an oilproof structure, and it does not require a sealing material such as packing or sponge, so the number of parts can be reduced, thereby reducing the manufacturing cost. it can. In addition, by providing a second support portion that supports the second connector in a state where the first connector is connected to the lower side of the second connector, the oil attached to the core wire of the first cable is second. Will not transfer to other cables. For this reason, oil does not leak to the outside of the relay box for electronic equipment through the core wire of the second cable.

  According to one of the inventions, the electronic device relay box is removed from the apparatus, and the first connector and each of the first connector and the separator are removed from the electronic device relay box. Since the wiring work between the electronic device and the wiring work between the second connector and the control device can be performed, the wiring work can be performed in a wide space, so that workability is improved. Also, since the support member is provided with an insertion / extraction opening for inserting / removing the connector into / from the first and second support portions and an insertion / extraction opening for inserting / removing the separator into / from the third support portion, the support member for the connector and separator Assembling work becomes easier.

It is a perspective view which decomposes | disassembles and shows the relay box for electronic devices which concerns on this invention. It is a front view which shows the 1st usage condition of the relay box for electronic devices which concerns on this invention. It is a front view which shows the 2nd usage condition of the relay box for electronic devices which concerns on this invention. It is a perspective view of the connector in the junction box for electronic devices concerning the present invention. It is a perspective view which shows the external appearance of the relay box for electronic devices which concerns on this invention. The cover in the relay box for electronic devices which concerns on this invention is shown, The figure (A) is the perspective view seen from the front side, The figure (B) is the perspective view seen from the bottom face side.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  An electronic device relay box generally indicated by reference numeral 1 in FIG. 1 includes a connector 2, a ground terminal plate 3, a separator 4, a support member 5 that supports the connector 2, the ground terminal plate 3, and the separator 4, and these It comprises a connector 2, a ground terminal plate 3, a separator 4, and a cover 6 (see FIG. 6) that covers the support member 5.

  As shown in FIG. 4, the connector 2 is provided with a plug 10 as a first connector and a recess 11 in which the plug 10 is detachably fitted. When the plug 10 is fitted, the connector 2 is electrically connected. It is comprised by the receptacle 12 as a 2nd connector. Reference numeral 13 denotes a first cable derived from an electronic device such as a sensor or a motor attached to the printing unit or the like, and is electrically connected to a terminal (not shown) of the plug 10. In addition, the cables derived from electronic devices such as sensors and motors are usually two or three cables, but here, the cables in a single state and those cables one by one. The cables in both states are collectively referred to as the first cable 13.

  Reference numeral 14 denotes a second cable that is electrically connected to a terminal (not shown) of the receptacle 12. A plurality of the second cables 14 are led out from the receptacle 12 and bundled by a tube 15. Not electrically connected to the control device. Therefore, by fitting the plug 10 into the recess 11 of the receptacle 12, the terminals (not shown) of the plug 10 and the receptacle 12 are electrically connected by point contact, and each of the plug 10 and the receptacle 12 is connected. Electronic devices such as sensors and motors are electrically connected to the control device via the terminals and the first and second cables 13 and 14. A flange 16 protrudes from the outer periphery of the receptacle 12 over the entire circumference, and the connector 2 is selected as the first or second support portion 30 or 31 of the support member 5 through the flange 16 as will be described later. Supported.

  The ground terminal plate 3 is made of a conductive metal plate as shown in FIG. 1 and has a U-shaped cross section by a front portion 18 and both side portions 19 and 19 formed by bending both ends of the front portion 18 at a right angle. It is formed in a shape. The front portion 18 is provided with five screw holes 18a in a row, and is led out from an external ground terminal (not shown) by a screw 20a screwed into one of the screw holes 18a. The ground wire 21a (see FIG. 2) is electrically connected to the ground terminal plate 3, and the ground wire 21b led out from the electronic device is electrically connected to the ground terminal plate 3 by screws 20b screwed into the other screw holes 18a. Connected. In FIG. 2, for convenience of explanation, the first cable 13 is partially omitted, and a part of the ground wire 21 b is omitted. In addition, the ground wire 21 a led out from the external ground terminal is bundled together with the second cable 14 by the tube 15 and introduced into the relay box 1 for electronic equipment.

  As shown in FIG. 1, the separator 4 is formed into a flat rectangular parallelepiped by a metal plate, and five U-shaped grooves 23 having an opening width W1 are arranged in a row at the edge in the direction of arrow A. Three U-shaped grooves 24 having an opening width W2 larger than W1 are provided in a row at the edge in the arrow B direction.

  As shown in FIG. 1, the support member 5 has a U-shaped cross section formed by a back plate 26 and opposite side plates 27, 27 facing each other, an opening 28 is provided in the upper portion, and an insertion opening is provided in the front. A portion 29 is provided. The side plates 27, 27 have first and second connector support portions that are open in opposite faces and have a U-shaped cross section and extend in a horizontal groove shape in the front-rear direction (arrow A-B direction). Support portions 30 and 31, a third support portion 32 as a separator support portion, and a terminal plate support portion 33 as a ground terminal plate support portion.

  Among these, the flange 16 of the receptacle 12 is selectively inserted into the groove-shaped portions of the first and second support portions 30, 31 provided on the upper side of the support member 5 from the insertion / extraction opening 29 of the support member 5. By being inserted, the connector 2 is accommodated in the support member 5 and supported by these first or second support portions 30 and 31. The separator 4 is inserted into the groove-shaped portion of the third support portion 32 provided on the lower side of the support member 5 from the insertion / extraction opening 29 of the support member 5, so that the separator 4 is inserted into the support member 5. It is accommodated and supported by the third support portion 32. The ground terminal plate 3 is inserted into the groove-shaped portion of the terminal plate support portion 33 provided between the second and third support portions 31 and 32 through the insertion / extraction opening 29 of the support member 5, thereby grounding. The terminal plate 3 is accommodated in the support member 5 and supported by the terminal plate support portion 33.

  At the lower end portion of the support member 5, a flange portion 35 having a U-shaped cross section is integrally projected downward, and the flange portion 35 is provided at the upper end portion of the flange portion 35 over the entire circumference. A cable inlet / outlet port 37 is opened at the lower end. Further, as shown in FIG. 5, an engagement projection 38 that engages with an engagement hole 46 of a cover, which will be described later, protrudes from the back surface of the flange portion 35.

  As shown in FIG. 6, the cover 6 is formed in a box shape having an opening 43 at the bottom by an upper surface portion 41 and a rectangular tube-shaped enclosure wall 42, and a step 44 is provided below the enclosure wall 42. A flange 45 is provided. The flange portion 45 is provided with an engagement hole 46 that engages with the engagement protrusion 38 of the support member 5 described above.

  When the cover 6 thus formed is placed on the support member 5 from above the support member 5 that supports the connector 2 shown in FIG. 2, the stepped portion 44 of the cover 6 is locked to the flange 36 of the support member 5. At the same time, the cover 45 is attached to the support member 5 by the elastic deformation of the flange 45 and the engagement protrusions 38 of the support member 5 engaging the engagement holes 46.

  In this state, as shown in FIG. 2, a first space 51 is formed between the lower end of the connector 2 and the separator 4, and a second space is formed between the upper end of the connector 2 and the upper surface portion 41 of the cover 6. A space 52 is formed, and the connector 2, the support member 5, and the first and second spaces 51 and 52 are covered with the cover 6. As described above, since the cover 6 is attached to and detached from the support member 5, the engagement holes 46 and the engagement protrusions 38 are engaged and released using the elastic deformation of the flange 45. It can be done easily without the need for tools.

  Next, a method of wiring the first and second cables 13 and 14 and the ground wires 21a and 21b in the electronic device relay box configured as described above will be described. First, the cover 6, the connector 2, the ground terminal plate 3, and the separator 4 are removed from the support member 5 as shown in FIG. 1, and each plug 10 is removed from the receptacle 12 as shown in FIG.

  In this state, the respective tips of the plurality of first cables 13 in which the cables derived from the electronic devices such as sensors and motors (none of which are shown) before being attached at predetermined positions of the printing unit are loosened apart. The part is inserted into the plug 10 as shown in FIG. 4, and the first cable 13 is electrically connected to the terminal of the plug 10. Similarly, the tip of the tube 15 in which a plurality of second cables 14 led out from a control device (not shown) before being attached to a predetermined position of the printing unit is cut as shown in FIG. The leading ends of the plurality of second cables 14 are inserted into the respective insertion portions of the receptacle 12 individually, and the second cables 14 are electrically connected to the terminals of the receptacle 12. Thereafter, as shown in the figure, the plug 10 is fitted into the recess 11 of the receptacle 12, and the terminals of the plug 10 and the receptacle 12 are electrically coupled by point contact to form the connector 2.

  Next, the tip of the ground wire 21a in the second cable 14 led out from the external ground terminal is electrically connected to the ground terminal plate 3 by the screw 20a, and the tip of the ground wire 21b led out from each electronic device. The part is electrically connected to the ground terminal plate 3 by a screw 20b.

  Next, as shown in FIG. 1, the plug 2 is inserted into the first support portion 30 from the insertion / extraction opening 29 of the support member 5 with the plug 10 connected to the upper side of the receptacle 12. Is supported by the first support portion 30 and the first cable 13 led out from each plug 10 is folded back and hangs downward as shown in FIG. 2, and the second cable led out from the receptacle 12 is dropped. The cable 14 and the tube 15 of the ground wire 21a are suspended downward. Further, by inserting the both side portions 19, 19 of the ground terminal plate 3 into the terminal plate support portion 33 from the insertion / extraction opening 29 of the support member 5 as shown in FIG. 1, the ground terminal plate 3 is connected to the terminal plate support portion. 33, the ground wire 21b is suspended downward as shown in FIG.

  By inserting the separator 4 into the third support portion 32 from the insertion / extraction opening 29 of the support member 5 with the groove 24 of the separator 4 directed toward the support member 5 as shown in FIG. 4 is supported by the third support portion 32. At this time, the tube 15 and the ground wire 21b of the second cable 14 are engaged with each of the three grooves 24 of the separator 4, and the first cable 13 is held at an interval without being bundled. The first cable 13 is engaged with each of the five grooves 23.

  As described above, the flange 16 of the receptacle 12 is inserted into and removed from the first or second support portion 30, 31, the ground terminal plate 3 is inserted into or removed from the terminal plate support portion 33, or the separator 4 is inserted into or removed from the third support portion 32. Since the support member 5 is provided with a common insertion / extraction opening 29 for mounting the connector 2, the ground terminal plate 3 and the separator 4 can be easily assembled to the support member 5. Moreover, the connector 2, the ground terminal plate 3 and the separator 4 are all inserted in the first to third support portions 30, 31, 32 and the terminal plate support portion 33 from the arrow B direction which is the same direction, and in the same direction As a result, the workability is improved.

  The first cable 13, the tube 15, and the ground wire 21 b are passed through the cable inlet / outlet port 37 of the support member 5. In this state, when the cover 6 is put on the support member 5 as shown in FIG. 2, the folded portion of the first cable 13 led out from the plug 10 is accommodated in the second space 52 and the cable introduction / conduction is performed. The first cable 13, the tube 15, and the ground wire 21b that have passed through the outlet 37 are led out from the opening 43 of the cover 6 as shown in FIG.

  Next, after attaching an electronic device such as a motor or a sensor and a control device to a predetermined position of the printing unit or the like, the above-described electronic device relay box 1 to which the connector 2 is attached is attached to a predetermined position of the printing unit or the like. .

  As described above, the first and second connectors 2 and the ground terminal plate 3 are connected to the first and second terminals with the electronic device relay box 1 removed from the apparatus and the connector 2 and the ground terminal plate 3 removed from the electronic device relay box 1. Since the cables 13 and 14 and the ground wires 21a and 21b are electrically connected, these wiring operations can be performed in a wide space, so that workability is improved.

  In addition, since the first cables 13 introduced into the first space 51 from the opening 43 of the cover 6 are spaced apart from each other, oil is supplied from the gap between the cables by surface tension to the electronic equipment relay box 1. Intrusion into the interior of the can be prevented. In addition, since the connector 2 is covered by the cover 6, oil dripping from above the relay box 1 for electronic equipment does not enter the connector 2.

  In addition, since the first space 51 is provided below the receptacle 12, the connector 2 is lifted from the opening 43 of the cover 6, so that oil is provided from the opening 43 into the cover 6. Intrusion of oil into the connector 2 can be restricted even if it enters. In addition, the oil-proof structure does not require a structure for lengthening the oil intrusion path, and no sealing material such as packing or sponge is required, so the number of parts can be reduced, thereby reducing the manufacturing cost. . In addition, the flange 35 provided at the lower portion of the support member 5 can prevent the oil from entering the relay box 1 for electronic devices from the lateral direction due to the rebound of the dropped oil.

  Further, by providing the ground terminal plate 3 separately from the connector 2, the state in which the ground wires 21a and 21b are connected is maintained when the plug 10 is pulled out of the receptacle 12 or after it is pulled out.

  Next, the 2nd usage aspect of the junction box for electronic devices which concerns on this invention is demonstrated using FIG. In FIG. 3, for convenience of explanation, the first cable 13 is partially omitted, and a part of the ground wire 21 b is omitted. In the second usage mode, when oil enters the core wire of the first cable 13 led out from the electronic device, the oil enters the control device via the core wire of the second cable 13 by capillary action. The structure which prevents this is provided.

  If the plug 10 is connected to the upper side of the receptacle 12 as in the first mode of use described above, when oil enters the core wire of the first cable 13, the oil that has entered enters the connector 2. There is a risk of dropping onto the core wire of the second cable 14 due to its own weight through the terminals of the plug 10 and the receptacle 12 and being transmitted through the core wire of the second cable 14 and entering the control device.

  Therefore, in the second use mode, as shown in FIG. 3, the vertical direction of the connector 2 is reversed, and the plug 16 is connected to the lower side of the receptacle 12 so that the flange 16 is attached to the second member of the support member 5. It is supported by the support part 31. Also in this second usage mode, by providing the second support portion 31 positioned below the first support portion 30, the second support portion 31 is provided between the upper end portion of the connector 2 and the upper surface portion 41 of the cover 6. A space 52 is formed. Therefore, a space for folding back the tube 15 for bundling the second cable 14 and the ground wire 21a led out from the receptacle 12 is secured.

  As described above, since the first cable 13 is electrically connected in the connector 2 with the first cable 13 positioned below the second cable 14, the oil temporarily enters the core of the first cable 13. However, since the point contact between the respective terminals of the plug 10 and the receptacle 12 prevents oil from being transferred between the terminals due to capillary action, the oil is resisted against gravity by the second cable 14. There is no such thing as being transmitted to the core wire. Therefore, oil does not leak to the outside of the electronic device relay box 1 via the core of the first cable 14, and oil does not enter the control device. In this second usage mode, the vertical direction of the connector 2 is reversed, but the front-rear direction may be reversed as necessary. In that case, the wiring of the first and second cables 13 and 14 is possible. In consideration of the above, the front-rear direction of the separator 4 may be reversed, and the groove 23 may be directed toward the support member 5 to be supported by the third support portion 32.

  DESCRIPTION OF SYMBOLS 1 ... Relay box for electronic devices, 2 ... Connector, 3 ... Ground terminal board, 4 ... Separator, 5 ... Support member, 6 ... Cover, 10 ... Plug (1st connector), 12 ... Receptacle (2nd connector) , 13 ... 1st cable, 14 ... 2nd cable, 15 ... tube, 16 ... 鍔, 21a, 21b ... ground wire, 29 ... opening for insertion / extraction, 30 ... 1st support part (connector support part), 31 ... 2nd support part (connector support part), 32 ... 3rd support part, 33 ... Terminal board support part, 35 ... Gutter part, 37 ... Cable introduction / extraction port, 43 ... Opening part, 51 ... 1st 52, second space.

Claims (2)

In the relay box for an electronic device of a printing machine that relays the first cable drawn from the electronic device provided in the printing press and is electrically connected to the control device via the second cable,
A first connector to which the first cable is electrically connected;
A second connector to which the second cable is electrically connected;
The first cable is held without being bundled, and the first connector is connected to the upper side of the second connector, and the second connector is supported in a state where there is a space below the second connector. And a second support that supports the second connector in a state in which the first connector is connected to the lower side of the second connector and there is a space below the first connector . And a support member provided with a cable introduction / extraction port for introducing and deriving the first and second cables at the bottom,
A tube member for introducing the second cable into the lower space;
An electronic device for a printing press comprising: a cover that covers the first and second connectors and the lower space with a space above the first connector or the second connector. Relay box. The second connector is detachably supported by the first and second support portions,
A separator that holds the first cable without being bundled;
The support member is provided with a third support portion that supports the separator in a freely insertable / removable manner, and the support member is inserted / removed for inserting / removing the first connector and the separator into / from the first to third support portions. The relay box for an electronic device of a printing press according to claim 1, further comprising an opening for use.

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