Cable rack, disaster prevention equipment storage device, and disaster prevention equipment

The cable rack with variable partitioned passages and shielding improves insertion ease and cable separation, addressing water ingress and noise issues in fire hydrant devices.

JP7710951B2Active Publication Date: 2025-07-22HOCHIKI CORP
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Patent Information

Application Number
JP2021163248
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-04
Publication Date
2025-07-22
Estimated Expiration
2041-10-04

AI Technical Summary

Technical Problem

Conventional cable routing systems in fire hydrant devices for tunnels face issues with water ingress, complex insertion work, insufficient separation distance between high-voltage and low-voltage cables, and inadequate noise shielding due to limited space and structural constraints.

Method used

A cable rack with variable partitioned wire passages, tiltable partition boards, and conductive or shielded members to facilitate easy insertion and ensure maximum separation distance and improved waterproofness and noise shielding.

Benefits of technology

Enhances the workability of cable insertion, prevents water ingress, and effectively reduces noise interference between cables, while maintaining structural integrity and cost-effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

To improve workability in a case of inserting a wiring cable to be wired by using a limited space and reliably secure a physically possible maximum clearance between wiring cables.SOLUTION: A cable rack 48 forms a first wiring path 52 and a second wiring path 54 for inserting a wiring cable, and the first wiring path 52 and the second wiring path 54 are formed by being partitioned with a partition board 62 within the rack body 50 of the cable rack 48. The partition board 62 is disposed to be tiltable by pivotally supporting the lower end to the bottom plate 60 of the rack body 50 with torque hinges 64. In a case of inserting the wiring cable through the first wiring path 52 and the second wiring path 54, the partition board 62 is tilted toward the side opposite to the wiring path for inserting the wiring cable and the wiring path to insert the wiring cable is expanded to facilitate an insertion work of the wiring cable.SELECTED DRAWING: Figure 7
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Description

Technical Field

[0001] The present invention relates to a cable rack installed to form a wiring path such as a wiring cable, a disaster prevention equipment storage device having the cable rack, and a disaster prevention equipment including the disaster prevention equipment storage device.

Background Art

[0002] Conventionally, in a tunnel such as a highway or an expressway for automobiles, a fire hydrant device, which is a kind of disaster prevention equipment storage device shown in FIG. 11, for example, is installed. FIG. 11(A) shows the front of the fire hydrant device, FIG. 11(B) shows the front of the fire hydrant device with the maintenance door and the fire hydrant door opened and the fire extinguisher door removed, FIG. 11(C) shows a cross section seen from the top of the fire hydrant device, and FIG. 11(D) shows a partially cut-away right side view in the state of FIG. 11(B). In addition, in FIG. 11(B), the illustration of the fire hose, valves, fire extinguishers, etc. inside the fire hydrant device is omitted, and FIG. 11(C) is a cross section at the position b-b shown by the broken line in FIG. 11(B).

[0003] Here, in the description of FIG. 11, the X-Y-Z directions are perpendicular to each other. Specifically, when looking at the front of the fire hydrant device as in FIG. 11(A), the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-back direction as in FIG. 11(D). Also, the +X side in the X direction is the right side, the -X side is the left side, the +Y side in the Y direction is the upper side, the -Y side is the lower side, the +Z side in the Z direction is the rear side, and the -Z side is the front side. This is the same in FIGS. 1 to 10 which are embodiments of the present invention.

[0004] As shown in Fig. 11, in a conventional fire hydrant device 10, a fire hose 38 and valves (not shown) are stored in a fire hydrant storage section 16 of a housing 10a having a fire hydrant door 12 and a maintenance door 14 that can be opened and closed. Also, for example, two fire extinguishers (not shown) are stored in a fire extinguisher storage section 20 of a housing 10b having a fire extinguisher door 18 and an electrical equipment door 22 that can be opened and closed. On the electrical equipment door 22, as electrical equipment, for example, a red indicator lamp 24 whose supplied power is AC100V, a transmitter 25 whose supplied power is DC48V, a response lamp 26, a telephone jack 27 (inside the housing of the electrical equipment door), etc. are provided. Also, in cold regions, a space heater whose supplied power is AC200V is further installed.

[0005] Moreover, the power supply to these electrical equipment is supplied by a wiring cable drawn from the outside of the fire hydrant device 10 to the fire hydrant storage section 16 side of the housing 10a passing through any space in the fire hydrant storage section 16 and being connected via terminal boxes 28a and 28b installed in the fire extinguisher storage section 20 of the housing 10b.

[0006] However, in the fire hydrant storage section 16 of the fire hydrant device 10, devices such as a fire hose 38, an automatic pressure regulating valve, valves including a fire hydrant valve and a water supply tap, and a fire hydrant valve opening and closing lever are arranged in a limited space. Furthermore, in order to meet the requirement of space saving for the tunnel structure, the size of the fire hydrant device 10 is in the direction of miniaturization. Therefore, the wiring space in the housing through which the wiring cable drawn from the outside to connect to the electrical equipment on the electrical equipment door 22 passes is limited.

[0007] Under such limitations in the wiring space, the wiring of the wiring cable in the conventional fire hydrant device is, as shown in Figs. 11(B) to (D), a cable rack 100 is provided using the empty space on the upper front side of the fire hydrant storage section 16 as the wiring space, and the wiring cable etc. drawn from the outside is inserted through the cable rack 100 and pulled out to the fire extinguisher storage section 20 side and connected to the terminal boxes 28a and 28b.

Prior Art Documents

Patent Documents

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-055073 [Patent Document 2] Japanese Patent Application Laid-Open No. 2018-139704 [Summary of the Invention] [Problems to be Solved by the Invention]

[0009] However, in the cable routing path of a conventional wiring cable using the cable rack 100, water such as rainwater may enter through the gap formed between the maintenance door 14 and the decorative frame (front panel having an opening for arranging the fire hydrant door 12 and the maintenance door 14 in the housing 10a), which may cause deterioration of the wiring cable. Therefore, the cable rack 100 has a shape in which the front side is shielded and the upper part of the rear side is open. When inserting a wiring cable into the cable rack 100, the inside of the cable rack 100 cannot be seen from the front of the fire hydrant device 10, so the insertion work is a groping operation from the upper part of the open rear side of the cable rack 100. Therefore, the insertion work is complicated and time-consuming.

[0010] Also, in the routing path of a conventional wiring cable, for example, a low-voltage cable of DC48V and a high-voltage cable of AC100V and / or AC200V are inserted into the same cable rack. Here, "high voltage" means the electrical field mainly used for energy exceeding 48V, and "low voltage" means the electrical field used for communication, control, information, etc. below 48V.

[0011] Generally, when there are mixed high-voltage cables such as AC 100V and low-voltage cables such as DC 48V, it is required to ensure a separation distance between the cables so as not to be affected by noise or the like. However, even if an attempt is made to insert the low-voltage cable and the high-voltage cable separately in the cable routing within the cable rack 100 to secure a separation distance, it is difficult to secure an appropriate separation distance because it is a blind groping operation that cannot be visually observed, and there was also a problem in that the cables may be inserted into the cable routing within the cable rack 100 without securing an appropriate separation distance between the cables.

[0012] In order to solve the problem of workability of such insertion work, it is conceivable to adopt a structure in which the front side of the cable rack is opened. However, since waterproofness and shielding performance cannot be ensured, countermeasures for preventing deterioration of the wiring cable and noise or the like from the outside to the wiring cable are insufficient. Therefore, for example, there is also a method of installing a cable rack with an open front side in the rear side of the fire hydrant storage section 16 of the fire hydrant device 10 to ensure waterproofness. However, since the workability of the insertion work deteriorates as the cable rack 100 goes to the rear side of the fire hydrant storage section 16, it is desirable to place the installation position of the cable rack 100 as close as possible to the front side of the fire hydrant storage section 16. The countermeasures for preventing deterioration of the wiring cable and the workability of the insertion work were in a trade-off relationship. Also, regardless of whether the cable rack 100 is in a shape with an open upper part on the rear side or a shape with an open front side, an opening for accessing the wiring cable in the cable routing within the cable rack 100 is required, and the countermeasures for preventing noise or the like from the outside to the wiring cable remain insufficient.

[0013] In addition, for the wiring cables used in the fire hydrant device for tunnels, except for the serial transmission lines of Class AA tunnels, shielded cables are not adopted for either the low-voltage cables or the high-voltage cables. When the high-voltage cables and the low-voltage cables are mixed and routed in the cable rack 100, it is necessary to ensure as wide a separation distance as possible. However, since the wire passing space inside the housing of the fire hydrant device 10 is limited, the width of the cable rack (the width in the front-rear direction) may be restricted, and there is also a problem that the separation distance between the high-voltage cable and the low-voltage cable cannot be made large. That is, even if the intended insertion operation can be performed and the separation distance can be secured to the limit, since the width of the cable rack (the width in the front-rear direction) is restricted, the separation distance is not sufficient, and countermeasures against the influence of noise between the cables may be insufficient in some cases.

[0014] To solve the problem of insufficient countermeasures against the influence of noise between such cables, it is conceivable to use shielded cables for the wiring cables. However, since the length of the wiring cables becomes longer in proportion to the size of the tunnel, the cost will increase in large-scale tunnels. Therefore, it is desired to solve the problem in units of fire hydrant devices that do not depend on the size of the tunnel.

[0015] The main object of the present invention is to improve the workability of the insertion operation when inserting wiring cables routed using a limited space, and to more surely secure the maximum physically possible separation distance between the wiring cables. A cable rack, a disaster prevention equipment storage device having the cable rack, and a disaster prevention equipment provided with the disaster prevention equipment storage device are provided, and further, the object is to ensure waterproofness.

Means for Solving the Problems

[0016] (Cable Rack) The present invention is a cable rack that forms a wire passing path for a wiring cable inserted from an incoming line port to an outgoing line port, The wire passage of the wiring cable is at least partially covered by an exterior member on the outside, and is partitioned inside the exterior member so that a plurality of wire passages are formed from the wire inlet to the wire outlet, and the size of each partitioned wire passage is variable.

[0017] (Partition board) The plurality of wire passages formed inside the exterior member are partitioned by a partition board disposed inside the exterior member. By tilting the partition board in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable, the size of the wire passage adjacent to the tilted partition board is varied.

[0018] (Torque hinge) The partition board is pivotally supported by a torque hinge on the inner surface of the exterior member so as to be tiltable in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable.

[0019] (Conductive material) The exterior member is made of a conductive material.

[0020] (Shield member covering the wire passage) At least one of the plurality of wire passages formed inside the exterior member is further covered at least partially around by a shield member.

[0021] (Shield member covering the wire inlet) At least one of the wire inlets and wire outlets of the plurality of wire passages formed inside the exterior member is covered by a shield member having a cut for inserting the wiring cable.

[0022] (Disaster prevention equipment storage device, disaster prevention equipment) Further, the present invention features a disaster prevention equipment storage device having the aforementioned cable rack, or a disaster prevention equipment equipped with the disaster prevention equipment storage device.

Effect of the invention

[0023] (Effect of the cable rack) According to the cable rack of the present invention, since the sizes of a plurality of wire passages formed by partitioning inside the exterior member are variable, when inserting a wiring cable into any of the plurality of wire passages, even if the inside of the exterior member cannot be seen and it becomes a groping operation, by varying the size of the wire passage through which the wiring cable is inserted so as to widen it, the insertion operation can be performed simply and easily, and the workability of the insertion operation can be improved.

[0024] Also, by varying the size of the wire passage through which the wiring cable is inserted, it is possible to insert a hand through the wire outlet of the wire passage through which the wiring cable is inserted and perform the insertion operation, and it is not necessarily necessary to provide an opening for inserting a hand inside the cable rack like a conventional cable rack, and the opening portion of the cable rack can be reduced more than before. As a result, the waterproof property is improved, and further, the influence of noise and the like on the wiring cable from the outside can be suppressed, and the deterioration of the wiring cable can be more effectively prevented.

[0025] Also, since a plurality of wire passages are formed by partitioning inside the exterior member, for example, if two wire passages are formed, a high-voltage cable is passed through one wire passage and a low-voltage cable for signal communication or the like is passed through the other wire passage, it is possible to surely secure the maximum separation distance that is physically possible, and it is possible to reduce the influence of noise and the like from the high-voltage cable on the low-voltage cable used for signal communication and the like.

[0026] (Effect by the structure of the partition plate and the torque hinge) Also, the structure that enables the size of each wire passage formed by partitioning inside the exterior member to be variable can be realized by a partition plate, a torque hinge, or the like, and can be realized with an inexpensive and simple structure.

[0027] (Effect by the conductive material and the shield member) In addition, by using a conductive material for the exterior member, the shielding performance can be further improved. Also, when it is not possible to ensure shielding performance due to the need to use a resin member for the exterior member, etc., the shielding performance can be ensured by further covering the wire passage with a shielding member. Further, the shielding performance can be improved by covering the wire insertion opening through which the wiring cable is inserted with a shielding member.

[0028] (Disaster prevention equipment storage device, effect of disaster prevention equipment) Since the disaster prevention equipment storage device having the cable rack described above and the disaster prevention equipment equipped with the disaster prevention equipment storage device have the same effects, the description thereof will be omitted.

Brief Description of the Drawings

[0029]

Figure 1

Figure 2

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Figure 9

Figure 10

Figure 11

[0030] [Basic Concept of Embodiment] First, the basic concept of the embodiment will be described. The embodiment is generally a cable rack that forms a routing path for a wiring cable inserted from an inlet to an outlet, for example, a cable rack provided in a housing of a tunnel fire hydrant device, which is a type of disaster prevention equipment storage device. More specifically, it relates to a cable rack that forms a routing path for a wiring cable connected to electrical equipment installed on the side of the fire extinguisher storage section through the fire hydrant storage section in the housing in the fire hydrant storage section.

[0031] The "wiring cable" is an electric wire in which a core wire using a conductor is insulated and covered, including concepts such as power lines, signal lines, transmission lines, communication lines, etc., and also includes concepts such as a single-core cable with one core wire and a multi-core cable with multiple core wires. Also, the "cable rack" includes concepts such as cable trays and cable ducts that pass wiring cables as long as they form a routing path for the wiring cable, regardless of their shape.

[0032] In the cable rack of this embodiment, at least a part of the periphery of the routing path for the wiring cable is covered by an exterior member, and partitions are formed inside the exterior member so that a plurality of routing paths are formed from the inlet to the outlet, and the size of each partitioned routing path can be freely changed.

[0033] Here, the "wiring path of the wiring cable" refers to the wiring path that includes all of the plurality of wiring paths formed by partitions inside the exterior member. Further, "at least a part of the periphery is covered by the exterior member" means that it is covered after providing an opening for inserting a hand into the wiring path of the wiring cable, like a conventional cable rack, and also means that it is covered without having an opening for inserting a hand into the wiring path of the wiring cable and without being able to insert a hand into the wiring path of the wiring cable. Both cases are included. Also, when it is covered so that a hand cannot be inserted into the wiring path of the wiring cable, it does not necessarily have to be completely blocked without gaps by the exterior member. Also, the number, size, etc. of the plurality of wiring paths formed inside the exterior member are arbitrary.

[0034] Also, the structure for making the size of each wiring path formed by a partition inside the exterior member variable is arbitrary. As a specific structure, for example, the plurality of wiring paths formed inside the exterior member are formed by being partitioned by partition plates arranged inside the exterior member. By tilting the partition plate in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable, the size of the wiring path adjacent to the tilted partition plate is made variable. Also, the partition plate is pivotally supported, for example, by a torque hinge on the inner surface of the exterior member so as to be tiltable in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable.

[0035] Here, the "torque hinge" has a rotation axis, generates a predetermined torque when a force is applied and rotates around the rotation axis, and loses the rotational force due to frictional force, etc. generated on the rotation axis and stops to hold the partition plate in the stopped position. Its shape, torque value, etc. are arbitrary, but for example, it has a shape, torque value, etc. such that an operator does not feel bothered when tilting the partition plate and can hold the position of the tilted partition plate at that position. Also, the "partition plate" does not necessarily have to completely partition the adjacent wiring paths without gaps, and it is sufficient if it is partitioned to such an extent that the wiring cable routed through a predetermined wiring path cannot move to other wiring paths.

[0036] In addition, in order to improve the shielding performance, the exterior member may be made of a conductive material, or the plurality of wiring paths formed inside the exterior member may be further covered with a shielding member, or the inlet and outlet of the plurality of wiring paths formed inside the exterior member may be covered with a shielding member having a cutout for inserting a wiring cable.

[0037] Hereinafter, specific embodiments will be described. In the specific embodiments shown below, it is a "fire hydrant device installed in a tunnel", which is a type of disaster prevention equipment storage device, the "exterior member" is a "rack body with an open top", and the "wiring path of the wiring cable" is a "first wiring path and a second wiring path separated in the front-rear direction by a partition plate", and the case where the "wiring cable" includes a "high-voltage cable for supplying AC100V power" and a "low-voltage cable for supplying DC48V power" will be described.

[0038] [Specific content of the embodiment] The cable rack of the fire hydrant device will be described in more detail. The content will be described separately as follows. a. Fire hydrant device b. Internal structure of the fire hydrant device c. Cable wiring system of the fire hydrant device d. Embodiment of the cable rack d1. Structure of the cable rack d2. Housing mounting structure d3. Insertion operation of the wiring cable e. Modification example of the present invention

[0039] [a. Fire hydrant device] A tunnel fire hydrant device, which is an example of a disaster prevention equipment storage device provided with the cable rack of the present embodiment, will be described in more detail. As shown in FIG. 1, the fire hydrant device 10 has a structure divided into a housing 10a on the fire hydrant storage part side and a housing 10b on the fire extinguisher storage part side, and decorative frames 11a and 11b are attached to the front surfaces of the housings 10a and 10b.

[0040] The door opening of the decorative frame 11a on the side of the fire hydrant storage part is divided vertically. An inclined fire hydrant door 12 that opens downward by a hinge 12a is installed on the lower side of the door opening, and a maintenance door 14 that opens upward by a hinge 14a is installed on the upper side of the door opening. Inside the fire hydrant storage part, a fire hose with a nozzle and valves including a fire hydrant valve are stored.

[0041] On the left side of the door opening of the decorative frame 11b provided on the side of the fire extinguisher storage part, a fire extinguisher door 18 that opens horizontally to the left by a hinge 18a is provided, and for example, two fire extinguishers can be stored in the fire extinguisher storage part inside. Also, a viewing window 29 is provided on the lower side of the fire extinguisher door 18, enabling confirmation of the presence or absence of a fire extinguisher from the outside.

[0042] On the right side of the door opening of the decorative frame 11b, an electrical equipment door 22 which is an electrical equipment panel having a door structure that opens horizontally to the right by a hinge 22a is provided. On the electrical equipment door 22, as electrical equipment, for example, a red indicator light 24, a transmitter 25, and a response lamp 26 are provided, and a telephone jack 27 is provided inside the housing of the electrical equipment door 22.

[0043] The red indicator light 24 is always on, making it possible to know the installation location of the fire hydrant device 10 from a distance. When a fire occurs, when the transmitter 25 is pressed to turn on the push-button switch, a transmission signal is sent to the disaster prevention receiving panel in the electrical room and a fire alarm is output. Along with this, a response signal is sent from the disaster prevention receiving panel, the red indicator light 24 blinks, and the response lamp 26 lights up.

[0044] [b. Internal Structure of Fire Hydrant Device] The internal structure of the fire hydrant device will be described in more detail. As shown in FIGS. 2 to 4, the inside of the housing 10a that becomes the fire hydrant storage part 16 is divided into a valve storage part 16a and a hose storage part 16b. Note that FIG. 3 is a cross-section of the location a-a shown by the broken line in FIG. 2.

[0045] In the valve storage section 16a, the water supply pipe 31 drawn in from the outside is connected to the water supply faucet 30 and branches downward and is connected to the fire hose 38 via the fire hydrant valve 32 and the automatic pressure regulating valve 34. The fire hydrant valve 32 is opened and closed by the fire hydrant valve opening / closing lever 36. When the fire hydrant valve opening / closing lever 36 is opened and closed, the fire hydrant valve 32 is interlocked and opened and closed by a known wire link mechanism, and the pump start interlock switch 44 provided in the operation box is turned on and off. Also, a pump start switch 42 used by the fire department is provided above the right of the water supply faucet 30.

[0046] In the hose storage section 16b, a hose storage frame 35 is provided, and the fire hose 38 drawn in from the lower side is stored by winding it inward in a clockwise or counterclockwise direction. A nozzle 40 is attached to the tip of the fire hose 38 drawn out through the hose guide 37, and the nozzle 40 is detachably held by the nozzle holder 41.

[0047] The inside of the housing 10b (on the side of the fire extinguisher door 18) is the fire extinguisher storage section 20. As shown in FIG. 3, two fire extinguishers 39 are stored. Terminal boxes 28a and 28b are installed on the rear surface of the fire extinguisher storage section 20. The red indicator light 24 provided on the electrical installation door 22 is connected to the terminal box 28a via a wiring cable. The transmitter 25, the response lamp 26, and the telephone jack 27 provided on the electrical installation door 22 are connected to the terminal box 28b via a wiring cable. Further, the pump start switch 42 and the pump start interlock switch 44 provided in the valve storage section 16a are connected via a wiring cable.

[0048] In the fire hydrant storage section 16 within the housing 10a, a cable rack 48 is installed. As shown in FIG. 4, the cable rack 48 has an open upper part and forms a first wire passage 52 and a second wire passage 54 divided in the front-rear direction, and is installed in the empty space within the housing 10a, for example, the empty space in the upper front side within the housing 10a. Also, as shown in FIGS. 2 and 3, the lateral arrangement of the cable rack 48 is an arrangement within the range from approximately the center of the valve storage section 16a through the hose storage section 16b to in front of the partition wall 21 with the fire extinguisher storage section 20, and a wire passage opening is formed in the partition wall 21 opposite to the left end of the cable rack 48.

[0049] The power cable 53 for strong electricity drawn into the valve storage section 16a from the outside is inserted into the first wire passage 52 from the wire inlet at the right end of the cable rack 48, drawn out to the fire extinguisher storage section 20 side through the first wire passage 52, and connected to the terminal box 28a. The weak electricity cable 55 drawn into the valve storage section 16a from the outside and the wiring cables from the pump start switch 42 and the pump start interlock switch 44 are inserted into the second wire passage 54 from the wire inlet at the right end of the cable rack 48, drawn out to the fire extinguisher storage section 20 side through the second wire passage 54, and connected to the terminal box 28b.

[0050] [c. Cable Wiring System of the Fire Hydrant Device] The cable wiring system for the electrical equipment provided in the fire hydrant device will be described in more detail. As shown in FIG. 5, as the electrical equipment provided in the fire hydrant device 10, on the electrical equipment door 22 arranged in the fire extinguisher storage section 20, a red indicator lamp 24, a transmitter 25, a response lamp 26, and a telephone jack 27 are provided. The red indicator lamp 24 is connected to the terminal block of the terminal box 28a, and the transmitter 25, the response lamp 26, and the telephone jack 27 are connected to the terminal block of the terminal box 28b.

[0051] Also, in the valve storage section 16a of the fire hydrant device 10, a pump start switch 42 and a pump start interlock switch 44 are provided, and are connected to the terminal block of the terminal box 28b provided in the fire hydrant storage section 20 by cable wiring through the cable rack 48.

[0052] A power cable 53 for supplying an external AC100V power source is drawn into the valve storage section 16a of the fire hydrant device 10, pulled out to the fire hydrant storage section 20 side through the first wiring path 52 of the cable rack 48, and connected to the terminal block of the terminal box 28a, thereby connecting to the red indicator lamp 24 is connected.

[0053] Also, a multi-core cable 55 for supplying an external DC48V power source (although it is a single multi-core cable, in the cable wiring system of Fig. 5, it is represented as a telephone cable 55a, a response lamp cable 55b, a transmitter cable 55c, and a switch cable 55d.) is drawn into the valve storage section 16a of the fire hydrant device 10, pulled out to the fire hydrant storage section 20 side through the second wiring path 54 of the cable rack 48, and connected to the terminal block of the terminal box 28b, thereby connecting to the telephone jack 27, response lamp 26, transmitter 25 of the electrical equipment door 22, and the pump start switch 42 and pump start interlock switch 44 provided in the valve storage section 16b.

[0054] Note that as shown in Fig. 6, the pump start switch 42 and the pump start interlock switch 44 in the valve storage section 16b are configured to be connected to the terminal box 28b as a parallel circuit in which the wiring of the pump start interlock switch 44 is connected to the terminal portion of the pump start switch 42. Also, due to the cross wiring between the terminal block of the terminal box 28b where the wiring of the pump start switch 42 and the pump start interlock switch 44 is connected and the terminal block of the terminal box 28b where the wiring of the transmitter 25 is connected, the wiring of the pump start switch 42 and the pump start interlock switch 44 is connected to the wiring of the transmitter 25.

[0055] [d. Embodiment of the cable rack] The embodiment of the cable rack will be described in more detail. Regarding the cable rack of this embodiment, a perspective view is shown in Fig. 7, a top view in Fig. 8(A), a front view in Fig. 8(B), and a right side view in Fig. 8(C).

[0056] (d1. Structure of the cable rack) As shown in FIGS. 7 and 8, the cable rack 48 is composed of a rack body 50, a partition plate 62, and torque hinges 64. The rack body 50 is, for example, a long box-shaped member with an open upper part and a longitudinal direction in the left-right direction, and is composed of a front plate 56, a back plate 58, and a bottom plate 60. Near the center of the bottom plate 60 of the rack body 50, a partition plate 62 with a length from the right inlet to the left outlet is arranged. The partition plate 62 is provided so as to be tiltable in the front-rear direction with respect to the bottom plate 60 by torque hinges 64 arranged at two positions on both the left and right sides of the lower part, for example.

[0057] The torque hinge 64 has a rotating shaft. When a force is applied, a predetermined torque is generated and it rotates around the rotating shaft. The rotational force is lost due to frictional force or the like generated on the rotating shaft, and it stops at that position when the rotational force disappears. In this embodiment, a predetermined torque is generated in the torque hinge 64 by the force applied to the partition plate 62 when the partition plate 62 is tilted in either the front or rear direction, and the torque hinge 64 rotates together with the partition plate 62. When the rotational force of the torque hinge 64 disappears, the torque hinge 64 stops while holding the partition plate 62 in that position. Also, the torque value of the torque hinge 64 to be used is arbitrary, but it should be such that the operator does not feel bothered when tilting the partition plate 62 and can hold the position of the tilted partition plate 62 at that position.

[0058] Also, in the rack body 50, a first wire passage 52 and a second wire passage 54 are formed by the partition plate 62 in the front-rear direction. Mounting holes 57 for attaching the cable rack 48 to the housing 10a side are formed at two positions on the left and right of the upper edge of the front plate 56 of the rack body 50.

[0059] The partition plate 62 pivotally supported by the torque hinge 64 on the bottom plate 60 of the rack body 50 is in a tilted position to widen the wire passage on the side where the wiring cable is inserted, as shown by the imaginary lines in FIGS. 7 and 8(C) when the wiring cable is inserted. For example, when inserting the high-voltage cable 53 into the first wire passage 52, the partition plate 62 is tilted backward to expand the first wire passage 52 and facilitate the insertion operation of the high-voltage cable 53. Similarly, when inserting the low-voltage cable 55 into the second wire passage 54, the partition plate 62 is tilted forward to expand the second passage 54 and facilitate the insertion operation of the low-voltage cable 55.

[0060] (d2. Housing mounting structure) FIG. 9 shows an example of the mounting structure of the cable rack 48 to the housing 10a of the fire hydrant device 10. The mounting structure of the cable rack 48 to the housing 10a is arbitrary. For example, a bolt 74 is passed through the mounting hole of the L-shaped mounting member 72 provided on the ceiling inside the housing 10a on the back side of the decorative frame 11a arranged above the door rack opening where the maintenance door 14 is provided and the mounting hole 57 at the upper edge of the front plate 56 of the rack body 50, and the bolt 74 is screwed into the nut 76, so that the cable rack 48 is fixedly mounted to the housing 10a. A wire passage port 70 is formed in the partition wall 21 opposite to the outlet ports at the left ends of the first wire passage 52 and the second wire passage 54 formed in the rack body 50.

[0061] (d3. Insertion operation of wiring cable) The operation of inserting the wiring cable into the cable rack will be described in more detail. FIG. 10 shows an example of the insertion operation of the wiring cable.

[0062] The insertion operation of the wiring cable into the cable rack 48 starts with the insertion operation of the low-voltage cable 55 into the second wire passage 54 located at the rear side. As shown in FIG. 10(A), for example, put your hand in from the inlet side of the rack body 50 and tilt the partition plate 62 pivotally supported by the torque hinge 64 forward. Thereby, the second wire passage 54 is expanded, and it becomes possible to easily perform the insertion operation of inserting the low-voltage cable 55 from the inlet side into the expanded second wire passage 54 and pulling it out from the outlet side.

[0063] Next, when performing the operation of inserting the high-voltage cable 53 into the first wiring path 52 on the front side of the cable rack 48, as shown in FIG. 10(B), for example, put a hand in from the incoming wire port side of the rack body 50 and tilt the partition plate 62 pivotally supported by the torque hinge 64 backward. As a result, the first wiring path 52 is expanded, and it becomes possible to easily perform the insertion operation of inserting the high-voltage cable 53 from the incoming wire port side into the expanded first wiring path 52 and pulling it out from the outgoing wire port side.

[0064] After the operation of inserting the high-voltage cable 53 into the first wiring path 52 and inserting the low-voltage cable 55 into the second wiring path 54 is completed, as shown in FIG. 10(C), for example, it may be in a tilted state such that the upper end of the partition plate 62 abuts against the front plate 56, and the position of the partition plate 62 after the insertion operation is set to an appropriate position. Further, by setting the partition plate 62 in a tilted state, in the case where the insertion operation becomes a groping operation in which the inside of the cable rack 48 cannot be visually observed, it is possible to prevent the operator from accidentally moving the wiring cable inserted to another wiring path.

[0065] [Modification Example of the Present Invention] A modification example of the cable rack according to the present invention will be described in more detail. The cable rack of the present invention includes the following modifications in addition to the above-described embodiment.

[0066] (Cable Rack of Disaster Prevention Equipment Storage Device) In the above-described embodiment, the cable rack of the fire hydrant device is taken as an example of the disaster prevention equipment storage device, but it is not limited thereto, and it can be applied to any device provided with a cable rack for inserting a wiring cable. For example, it can also be applied to the cable rack of a fire extinguisher box or a notification device provided with an electrical equipment panel on which electrical equipment is arranged, or the cable rack of a storage box for disaster prevention equipment equipped with electrical equipment installed indoors in a building or the like.

[0067] (Installation Position and Wiring Operation of Cable Rack) In the above-described embodiment, the cable rack 48 is installed in the empty space at the upper front side within the housing 10a, assuming that the wiring cable insertion work is carried out from the front surface of the housing 10a. However, the cable rack is installed corresponding to different empty spaces for each device, and the position for carrying out the wiring cable insertion work is determined depending on the position of the empty space, the position of the opening of the device, etc. Also, the position of the inlet / outlet of the cable rack and the positional relationship between the first wiring path and the second wiring path are not limited to this and are determined according to the position, environment, etc. where the cable rack is provided.

[0068] (Wiring paths formed by the cable rack) In the above-described embodiment, the wiring path of the wiring cable is divided into the first wiring path and the second wiring path which are split into two in the front-rear direction, but it is not limited to this. When the number of wiring cables to be inserted further increases, additional wiring paths may be provided.

[0069] Also, the inlet and outlet of the wiring path of the wiring cable may be covered with a shielding member. By covering the inlet and outlet with a shielding member, the shielding property of the wiring path can be improved, and the influence by noise, etc. can be reduced. Also, by making a cut for inserting the cable in the shielding member, the wiring cable insertion work can be carried out without detaching the shielding member. Also, instead of covering the inlet and outlet of all the partitioned wiring paths with a shielding member, an arbitrary wiring path may be covered.

[0070] Also, the periphery of the wiring path may be further covered with a shielding member, for example, a shielding sheet. The shielding property can be further improved by the shielding sheet, and the influence by noise, etc. can be reduced. Also, instead of covering all the partitioned wiring paths with a shielding sheet, an arbitrary wiring path may be covered with a shielding sheet.

[0071] (Others) Also, the present invention includes appropriate modifications that do not impair its object and advantages, and is not limited by the numerical values shown in the above-described embodiment.

Explanation of reference numerals

[0072] 10: Fire hydrant device 10a, 10b: Housing 11a, 11b: Decorative frame 12: Fire hydrant door 14: Maintenance door 16: Fire hydrant storage section 16a: Valve storage section 16b: Hose storage section 18: Fire extinguisher door 20: Fire extinguisher storage section 21: Partition 22: Electrical equipment door 24: Red indicator light 25: Transmitter 26: Response lamp 27: Telephone jack 28a, 28b: Terminal box 30: Water supply tap 31: Water supply pipe 32: Fire hydrant valve 34: Automatic pressure regulating valve 35: Hose storage frame 36: Fire hydrant valve opening / closing lever 37: Hose guide 38: Fire-fighting hose 40: Nozzle 42: Pump start switch 44: Pump start interlock switch 48: Cable rack 50: Rack body 52: First through line 53: High-voltage cable 54: Second through line 55: Low-voltage cable 56: Front plate 58: Back plate 60: Bottom plate 62: Partition plate 64: Torque hinge 70: Cable through hole 72: Mounting member

Claims

1. A cable rack that forms a cable passage for a wiring cable inserted from an inlet to an outlet, wherein at least a part of the periphery of the cable passage for the wiring cable is covered by an exterior member, and partitions are formed inside the exterior member so that a plurality of cable passages are formed from the inlet to the outlet, and the size of each partitioned cable passage is variable, the plurality of cable passages formed inside the exterior member are partitioned by partition plates arranged inside the exterior member, the partition plate is pivotally supported by a torque hinge so as to be tiltable in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable on the inner surface of the exterior member, and is characterized by a cable rack.

2. The cable rack according to claim 1, wherein the partition plate is tilted in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable, so that the size of the cable passage adjacent to the tilted partition plate is variable, and is characterized by a cable rack.

3. The cable rack according to claim 1 or 2, wherein the exterior member is made of a conductive material, and is characterized by a cable rack.

4. The cable rack according to any one of claims 1 to 3, wherein at least one of the plurality of cable passages formed inside the exterior member is further covered at least partially around by a shield member, and is characterized by a cable rack.

5. The cable rack according to any one of claims 1 to 4, wherein at least one of the inlet and the outlet of the plurality of cable passages formed inside the exterior member is covered by a shield member having a cut for inserting the wiring cable, and is characterized by a cable rack.

6. A disaster prevention equipment storage device characterized by having the cable rack according to any one of claims 1 to 5.

7. A disaster prevention equipment storage device having a cable rack that forms a cable passage for a wiring cable inserted from an inlet to an outlet, wherein at least a part of the periphery of the cable passage for the wiring cable is covered by an exterior member, and partitions are formed inside the exterior member so that a plurality of cable passages are formed from the inlet to the outlet, and the size of each partitioned cable passage is variable, the plurality of cable passages formed inside the exterior member are partitioned by partition plates arranged inside the exterior member, The partition plate is tilted in a predetermined direction substantially orthogonal to the insertion direction of the wiring cable, thereby varying the size of the wire passage adjacent to the tilted partition plate. A disaster prevention equipment storage device characterized by this.

8. A disaster prevention device characterized by comprising the disaster prevention equipment storage device according to claim 6 or 7.

Citation Information

Patent Citations

  • JP1965-004686Y

  • JP1976069799U

  • JP1976075596U

  • JP1988088017U

  • JP1990035491U