Cable racks, disaster prevention equipment storage devices, and disaster prevention equipment

Abstract

To provide a cable rack which improves workability when a wiring cable routed by using a limited space is inserted into the cable rack and which further reliably ensures a physically possible maximum separation distance between wiring cables to be inserted.SOLUTION: A cable rack 48 includes a rack body 50 covering part of a wiring path by a front plate 52, a back plate 56 and a bottom plate 58 and having guide openings 64, 66 formed from a wire entry side to a wire exit side, and cable moving parts 70, 72 detachably holding a wiring cable and disposed in the guide openings 64, 66, respectively, the wiring cable being inserted into the wiring path by moving the cable moving parts 70, 72 while the wiring cable is held by the cable moving parts 70, 72. The wiring path comprises a first wiring path 60 and a second wiring path 62 formed by being partitioned by a partition plate 54, and the guide opening 64 is formed on a first wiring path 60 side, while the guide opening 66 is formed on a second wiring path side.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a cable rack installed to form a wiring path for wiring cables, etc., a disaster prevention equipment storage device having the cable rack, and disaster prevention equipment equipped with the disaster prevention equipment storage device. [Background technology]

[0002] Conventionally, fire hydrant devices, which are a type of disaster prevention equipment storage device, are installed in tunnels on expressways and expressways, for example, as shown in Figure 16. Figure 16(A) shows the front of the fire hydrant device, Figure 16(B) shows the front of the fire hydrant device with the maintenance door and hydrant door open and the fire extinguisher door removed, Figure 16(C) shows a cross section of the fire hydrant device as seen from above, and Figure 16(D) shows a partially cutaway right side view of the fire hydrant device in the state shown in Figure 16(B). Note that Figure 16(B) omits the illustration of the fire hoses, valves, fire extinguishers, etc. inside the fire hydrant device, and Figure 16(C) shows a cross section of the area ee indicated by the dashed line in Figure 16(B).

[0003] In the description of Fig. 16, the X, Y, and Z directions are directions that are orthogonal to each other. Specifically, when looking at the front of the fire hydrant device from the front as in Fig. 16(A), the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction as in Fig. 16(D). Also, the +X side in the X direction is the right side and the -X side is the left side, the +Y side in the Y direction is the upper side and the -Y side is the lower side, and the +Z side in the Z direction is the rear side and the -Z side is the front side. This also applies to Figs. 1 to 15, which are embodiments of the present invention.

[0004] 16, 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 equipped with a fire hydrant door 12 and a maintenance door 14 that can be opened and closed, and two fire extinguishers (not shown) are stored in a fire extinguisher storage section 20 of a housing 10b equipped with a fire extinguisher door 18 and an electrical door 22 that can be opened and closed. The electrical door 22 is provided with electrical equipment such as a red indicator light 24 that is supplied with AC 100V, a transmitter 25 that is supplied with DC 48V, a response lamp 26, and a telephone jack 27 (inside the housing of the electrical door), and in cold regions, a space heater that is supplied with AC 200V is also installed.

[0005] In addition, the power supplied to these electrical devices is supplied by a wiring cable that is pulled from the outside of the fire hydrant device 10 to the fire hydrant storage section 16 side of the housing 10a, passes through one of the spaces in the fire hydrant storage section 16, and is connected via terminal boxes 28a, 28b installed in the fire extinguisher storage section 20 of the housing 10b.

[0006] However, in the hydrant storage section 16 of the fire hydrant device 10, equipment such as the fire hose 38, automatic pressure regulating valve, valves including fire hydrant valves and water supply hydrants, and fire hydrant valve opening / closing levers are arranged in a limited space, and furthermore, since there is a trend towards making the size of the fire hydrant device 10 smaller in order to meet the demand for space saving in the tunnel body, the wiring space within the housing for passing the wiring cables pulled in from the outside to connect to the electrical equipment of the electrical door 22 is limited.

[0007] Given the limited space available for wiring, conventional fire hydrant devices use a cable rack 100 in the empty space at the top front of the hydrant storage section 16 as a wiring space, as shown in Figures 16(B) to (D), and wiring cables, etc., pulled in from the outside are inserted through the cable rack 100, drawn out to the fire extinguisher storage section 20, and connected to 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 Publication No. 2018-139704 Summary of the Invention [Problem to be solved by the invention]

[0009] However, in the conventional wiring cable routing using the cable rack 100, water such as rainwater can seep in through the gap between the maintenance door 14 and the decorative frame (the front panel in the housing 10a having openings for placing the fire hydrant door 12 and the maintenance door 14), which can cause deterioration of the wiring cable. Therefore, the cable rack 100 is designed so that the front side is closed and the top part of the rear side is open. When inserting the 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 must be done blindly from the top part of the open rear side of the cable rack 100, which makes the insertion work complicated and time-consuming.

[0010] In addition, conventional wiring cable routing routes have, for example, DC 48V low-voltage cables and AC 100V and / or AC 200V high-voltage cables inserted into the same cable rack. Here, "high voltage" refers to the field of electricity above 48V that is primarily used for energy, and "low voltage" refers to the field of electricity below 48V that is used for communication, control, information, etc.

[0011] Generally, when high-voltage cables such as AC 100V and low-voltage cables such as DC 48V are mixed, it is necessary to prevent interference from noise, etc. between the cables by ensuring a certain distance between them. However, even if attempts are made to separate low-voltage cables and high-voltage cables to ensure a certain distance in the wiring paths within the cable rack 100, it is difficult to ensure an appropriate distance because this is done by feel around and cannot be seen, and there has been a problem in that the cables may be inserted into the wiring paths within the cable rack 100 without ensuring an appropriate distance between them.

[0012] To solve this problem of cable insertion workability, it is conceivable to design the cable rack so that its front side is open. However, this does not ensure waterproofing or shielding, and therefore provides insufficient measures to prevent deterioration of the distribution cables and external noise from being applied to the distribution cables. Therefore, for example, a cable rack with an open front side may be installed at the rear of the hydrant storage compartment 16 of the hydrant device 10 to ensure waterproofing. However, since the ease of insertion work worsens the further the cable rack 100 is located at the rear of the hydrant storage compartment 16, it is desirable to install the cable rack 100 as close to the front of the hydrant storage compartment 16 as possible. This creates a trade-off between measures to prevent deterioration of the distribution cables and ease of insertion work. Furthermore, whether the cable rack 100 has an open top rear side or an open front side, an opening is required to access the distribution cables in the cable rack 100, and therefore, measures to prevent external noise from being applied to the distribution cables remain insufficient.

[0013] Furthermore, with the exception of the serial transmission lines in AA-class tunnels, the wiring cables used in tunnel hydrant devices do not employ shielded cables for either the low-voltage or high-voltage cables, and when laying a mixture of high-voltage and low-voltage cables in the cable rack 100, it is necessary to ensure as large a separation distance as possible. However, since the wiring space within the housing of the fire hydrant device 10 is limited, the width (front-to-back width) of the cable rack may be restricted, creating the problem of not being able to ensure a large separation distance between the high-voltage and low-voltage cables. In other words, even if the intended insertion work can be performed and the maximum separation distance can be secured, the limited width (front-to-back width) of the cable rack may not provide a sufficient separation distance, resulting in insufficient measures to deal with the effects of noise between the cables.

[0014] One way to solve this problem of insufficient measures to deal with the effects of noise between cables is to use shielded cables for the wiring cables. However, since the length of the wiring cables increases in proportion to the size of the tunnel, this would increase costs in large tunnels. Therefore, it is desirable to solve this problem on a per-fire hydrant device basis, which is not dependent on the size of the tunnel.

[0015] The main object of the present invention is to provide a cable rack that improves the workability of the insertion work when inserting wiring cables that are routed through a limited space, and that reliably ensures the maximum physically possible distance between wiring cables, a disaster prevention equipment storage device that has said cable rack, and disaster prevention equipment that is equipped with said disaster prevention equipment storage device, and further aims to ensure waterproofing. [Means for solving the problem]

[0016] (cable rack) The present invention provides a cable rack that forms a path for a wiring cable that is inserted from an inlet to an outlet, an exterior member that covers at least a portion of the periphery of the wire line and has a guide portion formed on the inside from the wire entrance side to the wire exit side; a cable moving section that detachably holds the wiring cable and is disposed in the guide section; Equipped with With the wiring cable held by the cable moving part, the cable moving part is moved along the guide part from the inlet side to the outlet side, thereby inserting the wiring cable into the wiring path.

[0017] (Cable racks separating the cable tracks) The railway tracks are divided into multiple sections, Guide portions are formed inside the exterior member corresponding to each of the wire paths, and cable movement portions are disposed for each of the guide portions.

[0018] (A cable rack that does not separate the cable path but has multiple guide sections) A plurality of guide portions are formed on the inside of the exterior member, A cable travel section is disposed relative to each of the guide sections.

[0019] (Guide opening) The guide portion is a guide opening formed in the exterior member and extending from the inlet side to the outlet side.

[0020] (Cable moving part) The moving part of the cable is a cable holding portion that detachably holds the cable; a movement operation unit that enables an operation to move the cable movement unit along the guide opening; a moving and fixing part that fixes the moving part of the cable to the exterior member; Equipped with.

[0021] (cable holding part) The cable holding portion is a flat spring member having a receiving portion into which the wiring cable is pushed and an arc-shaped or polygonal holding portion that holds the wiring cable.

[0022] (Protrusion that increases or decreases the sliding resistance between the holding part and the wiring cable depending on the direction of movement) At least at the contact portion of the inner surface of the holding portion with the wiring cable, a protrusion is arranged which increases the sliding resistance between the holding portion and the wiring cable when the wiring cable is moved from the inlet side toward the outlet side while being held, and which reduces the sliding resistance when the wiring cable is moved from the outlet side toward the inlet side.

[0023] (Moving operation unit and moving fixed unit) the moving operation unit is a fastening shaft member fixed to the bottom of the cable holding unit and protruding outside the exterior member through the guide opening, The moving fixing portion is a fastening receiving member through which the fastening shaft member is inserted and which fixes the cable moving portion to the exterior member.

[0024] (Conductive materials) The exterior member is made of a conductive material.

[0025] (Shielding material covering the wire line) At least one of the wires is further covered with a shielding member over at least a portion of its periphery.

[0026] (Shielding material covering the wire passage opening) At least one of the inlet and outlet is covered with a shielding member having a notch for inserting a distribution cable therethrough.

[0027] (Disaster prevention equipment storage device, disaster prevention equipment) The present invention also features a disaster prevention equipment storage device having the above-mentioned cable rack, or disaster prevention equipment equipped with the disaster prevention equipment storage device. [Effects of the Invention]

[0028] (Effect of cable rack) According to the cable rack of the present invention, the wiring cable can be inserted into the wiring path formed in the cable rack by holding the wiring cable in the cable moving section disposed in the guide section formed inside the exterior member from the inlet side to the outlet side and moving the cable moving section along the guide section from the inlet side to the outlet side, thereby making it possible to simply and easily perform the insertion work even when the inside of the cable rack cannot be seen.Furthermore, by moving the cable moving section along the guide section from the outlet side to the inlet side, the wiring cable can be removed from the cable rack, and then replaced with a new wiring cable and inserted again, making the replacement of the wiring cable similarly simple and easy.

[0029] Furthermore, if the guide section is a guide opening formed by opening from the inlet side to the outlet side of the exterior member, or depending on the structure of the cable moving section, the worker does not necessarily need to reach into the wire path inside the cable rack when inserting the wiring cable, so in that case there is no need to provide an opening in the cable rack for reaching in, and the opening area of ​​the cable rack can be reduced compared to conventional methods, improving waterproofing, suppressing the impact of noise and other external factors on the wiring cable, and better preventing deterioration of the wiring cable.

[0030] In addition, since the wiring cables inserted into the wiring path are held by the cable moving part and their position within the wiring path is fixed, when inserting multiple wiring cables, the maximum physically possible separation distance can be reliably achieved without relying on the worker. Furthermore, while conventional cable racks only allowed wiring cables to be inserted side by side at the bottom of the cable rack, in the present invention, since the wiring cables are held by the cable moving part, it is possible to insert the wiring cables three-dimensionally within the wiring path depending on the arrangement of the guide part (guide opening) and the cable moving part, and this increases the maximum physically possible separation distance.

[0031] (Effect of cable racks separating the cable tracks) Furthermore, by forming the cable path as, for example, two separate sections, with high-voltage cables passing through one cable path and low-voltage cables passing through the other, the high-voltage cables and low-voltage cables are separated by a partition, making it possible to further reduce the impact of noise, etc. from the high-voltage cables on the low-voltage cables used for signal communications, etc. Furthermore, when the cable path is covered with a shielding material to reduce the impact of noise, etc., the separation distance can be shortened compared to when a shielding material is not used, and as a result, the dimensions of the cable rack can be made smaller, making it possible to install the cable rack even in limited space.

[0032] (The effect of the cable rack, which does not separate the cable path but has multiple guide sections) Furthermore, even if the wiring path is not separated, the high-voltage cable and the low-voltage cable are held in cable moving sections located in each of the guide sections (guide openings), so the maximum physically possible separation distance can be reliably maintained without relying on workers, thereby reducing the impact of noise, etc. from the high-voltage cable on the low-voltage cable used for signal communications, etc.

[0033] (Effect of moving cable part) Furthermore, the cable moving unit is composed of a cable holding unit, a moving operation unit, and a moving fixed unit, and when the moving operation unit is provided, which can move the cable moving unit along the guide opening from outside the exterior member, there is no need to reach inside the cable rack when inserting the wiring cable into the cable rack, and the insertion work can be performed by holding the wiring cable in the cable holding unit located at the wire inlet and moving the moving operation unit from the outside of the exterior member from the wire inlet side to the wire outlet side. Furthermore, after the wiring cable has been inserted into the wiring path in the cable rack, the position of the cable moving unit relative to the exterior member can be fixed by the moving fixed unit to limit the movement of the cable moving unit, and it is also possible to suppress the movement of the wiring cable held in the cable moving unit.

[0034] (Effect of cable holding part) Furthermore, since the cable holding portion is a plate spring member, when the wiring cable is pressed into the holding portion, the shape is deformed to generate a strong spring force, which enables the wiring cable to be securely held.

[0035] (The effect of the protrusions that increase or decrease the sliding resistance between the holding part and the wiring cable depending on the direction of movement) Furthermore, a protrusion is disposed at least at the contact portion of the inner circumferential surface of the holding portion with the wiring cable, which increases the sliding resistance between the holding portion and the wiring cable when the wiring cable is held and moved from the inlet side to the outlet side, and reduces the sliding resistance when the wiring cable is moved from the outlet side to the inlet side. By holding the wiring cable in the holding part of the cable holding part of the cable moving part and moving the cable moving part from the inlet side to the outlet side, when the wiring cable is inserted into the wiring path, the sliding resistance between the holding part and the wiring cable increases, making it possible to hold the wiring cable more securely and insert it into the wiring path.

[0036] On the other hand, when moving the cable moving part from the outlet side to the inlet side, for example, after inserting the wiring cable into the wiring path, if the wiring cable held by the cable moving part is not moved but the cable moving part is moved to a position where it is fixed to the exterior member (for example, approximately the center of the wiring path), the sliding resistance between the holding part and the wiring cable decreases, so the cable moving part can be moved while preventing the position of the wiring cable after the insertion work has been completed from moving.

[0037] (Effect of the moving operation unit and the moving fixed unit) Furthermore, the moving operation member can be realized by a fastening shaft member such as a bolt, and the moving fixed portion can be realized by a fastening receiving member such as a nut, which can be realized with an inexpensive and simple structure.

[0038] (Effects of conductive materials and shielding materials) In addition, by using a conductive material for the exterior member, the shielding performance can be further improved. Also, if it is not possible to ensure shielding performance due to the need to use a resin material for the exterior member, the shielding performance can be ensured by further covering the wiring path with a shielding material. In addition, the shielding performance can be further improved by covering the wiring port through which the wiring cable is inserted with a shielding material.

[0039] (Disaster prevention equipment storage device, effectiveness of disaster prevention equipment) The same effect can be achieved with the disaster prevention equipment storage device having the cable rack described above, and with the disaster prevention equipment equipped with the disaster prevention equipment storage device, so a description thereof will be omitted. [Brief explanation of the drawings]

[0040] [Figure 1] FIG. 1 is an explanatory diagram showing a fire hydrant device for a tunnel. [Figure 2] FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device from the front with the door open. [Figure 3] FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device in cross section as viewed from above. [Figure 4] FIG. 2 is an explanatory diagram showing the right side of the fire hydrant device with the cable rack partially cut away. [Figure 5] FIG. 2 is an explanatory diagram showing a cable wiring system of a fire hydrant device. [Figure 6] FIG. 2 is an explanatory diagram showing details of wiring for a terminal box to which a low-voltage cable is connected. [Figure 7] FIG. 1 is an explanatory perspective view showing an embodiment of a cable rack. [Figure 8] 8 is an explanatory diagram showing the top, front and right side of the cable rack of FIG. 7. [Figure 9] 10A and 10B are explanatory diagrams showing an embodiment of a cable moving part. [Figure 10] 1 is an explanatory diagram showing a housing mounting structure of a cable rack. FIG. [Figure 11] 1A to 1C are explanatory diagrams showing the operation of inserting cables into a cable rack in chronological order. [Figure 12] 10A and 10B are explanatory views showing another embodiment of a cable transfer section provided with an upright tapered piece. [Figure 13] 13 is an explanatory diagram showing the sheet member of FIG. 12 in an unfolded state. FIG. [Figure 14] 10A and 10B are explanatory diagrams showing another embodiment of the cable moving portion. [Figure 15] 10 is an explanatory diagram showing another embodiment of a cable rack that does not separate the cable paths. FIG. [Figure 16] FIG. 10 is an explanatory diagram showing a cable rack provided in a conventional fire hydrant device.

[0041] [Basic concept of the embodiment] First, the basic concept of the embodiment will be described. The embodiment relates generally to a cable rack that forms a path for a wiring cable that is inserted from an inlet to an outlet, for example, a cable rack that is provided in a housing of a tunnel fire hydrant device, which is a type of disaster prevention equipment storage device, and more specifically, to a cable rack that forms, in a fire hydrant storage section within the housing, a path for a wiring cable that passes through the fire hydrant storage section and is connected to electrical equipment installed on the fire extinguisher storage section side.

[0042] "Wiring cable" refers to an electric wire with an insulating coating around a conductive core, and includes concepts such as power lines, signal lines, transmission lines, and communication lines, as well as single-core cables with one core and multi-core cables with multiple cores. "Cable rack" refers to any shape that forms a wiring path, and includes cable trays and cable ducts through which wiring cables are passed.

[0043] Furthermore, the "railway" refers to a passage through which a distribution cable is inserted from the inlet to the outlet, and in this embodiment, at least a portion of the periphery is covered with an exterior member. The phrase "at least a portion of the periphery is covered with an exterior member" includes both a cable rack that is covered with an opening for inserting a hand into the railway, as in conventional cable racks, and a cable rack that does not have an opening for inserting a hand into the railway and is covered so that the hand cannot be inserted into the railway. Furthermore, when the railway is covered so that the hand cannot be inserted into the railway, it does not necessarily have to be completely sealed with an exterior member.

[0044] The cable rack of this embodiment is composed of an exterior member and a cable moving part. Here, the "exterior member" refers to a member that covers at least a portion of the periphery of the cable path and has a guide part formed inside it from the inlet side to the outlet side, and the "cable moving part" refers to a member that detachably holds the distribution cable and is arranged in the guide part, and with the distribution cable held in the cable moving part, the cable moving part can be moved along the guide part from the inlet side to the outlet side to insert the distribution cable into the cable path.

[0045] Furthermore, the "guide section" is formed from the inlet side to the outlet side, and the structure and mechanism are arbitrary as long as it allows the cable moving section to move between the inlet side and the outlet side, but one example is a "guide opening" formed in the exterior member from the inlet side to the outlet side.

[0046] Furthermore, when the wiring path is divided into multiple sections, a "guide section" may be formed inside the exterior member corresponding to each of the wiring paths, and a "cable movement section" may be disposed for each guide section. Even when the wiring path is not divided into multiple sections, multiple "guide sections" may be formed inside the exterior member, and a "cable movement section" may be disposed for each guide section, making it possible to insert multiple wiring cables into the same wiring path. Furthermore, when the wiring path is divided into multiple sections, the number of wiring paths formed, the size of each path, etc. are arbitrary.

[0047] In order to improve the shielding performance, the exterior member may be made of a conductive material, the wiring lines may be further covered with a shielding member, or the inlet and outlet may be covered with a shielding member having a notch for inserting the wiring cable. Furthermore, when multiple wiring lines are formed, the number of wiring lines and wiring ports covered with the shielding member may also be arbitrary.

[0048] Furthermore, the "cable moving section" of this embodiment is specifically composed of a cable holding section, a moving operation section, and a moving fixing section.

[0049] Here, the "cable holding portion" is a portion that holds the wiring cable in a detachable manner, and its structure and mechanism are arbitrary, but it is, for example, a leaf spring member that has a receiving portion into which the wiring cable is pushed and an arc-shaped or polygonal holding portion that holds the wiring cable. The wiring cable is pushed from the receiving portion to fit into the holding portion, and the wiring cable is held by the strong spring force caused by the deformation of the holding portion's shape.

[0050] In addition, a protrusion may be arranged at least at the contact portion of the inner surface of the holding portion with the wiring cable, which increases the sliding resistance between the holding portion and the wiring cable when the wiring cable is held and moved from the inlet side to the outlet side, and reduces the sliding resistance when the wiring cable is moved from the outlet side to the inlet side.

[0051] Here, the structure and mechanism of the "protrusion" are arbitrary, but examples include a sheet member formed with an upright piece that is placed on the inner surface of the holding portion, or an upright piece formed on the inner surface of the holding portion, and more specifically, an upright piece that stands at an angle so that one end side that is on the wire inlet side is positioned more inside the holding portion than the other end side that is on the wire outlet side, and the position of the other end side is displaced to increase or decrease the sliding resistance between the holding portion and the wiring cable.

[0052] Furthermore, the "moving operation unit" is a unit that enables the operation of moving the cable moving unit along the guide opening, and its structure and mechanism are arbitrary, but it is, for example, a fastening shaft member such as a bolt that is fixed to the bottom of the cable holding unit and protrudes outside the exterior member through the guide opening, and by moving the fastening shaft member exposed on the outside of the cable rack from the inlet side to the outlet side, it is possible to move the cable holding unit that holds the wiring cable from the inlet side to the outlet side, and insert the wiring cable into the wiring path.

[0053] Furthermore, the "moving and fixing part" is a part that fixes the cable moving part to the exterior member, and its structure and mechanism are arbitrary, but for example, it is a fastening receiving member such as a nut through which a fastening shaft member such as a bolt that functions as a moving operating part is inserted and which fixes the cable moving part to the exterior member.By fixing the cable moving part to the exterior member after inserting the wiring cable into the wiring path, the movement of the wiring cable held in the cable moving part is suppressed, and when multiple wiring cables are inserted, it is possible to maintain the distance between the wiring cables.

[0054] Specific embodiments will be described below. In the specific embodiments shown below, the case will be described in which the "fire hydrant device installed in a tunnel" is a type of disaster prevention equipment storage device, the "exterior member" is "a rack body with an open top and a wiring path divided into two sections, front and rear, by a partition plate" or "a rack body with an open top and a single wiring path", the "guide portion" is "a guide opening formed in the bottom plate of the rack body", the "wiring cable" includes "a high-voltage cable that supplies AC 100 V power" and "a low-voltage cable that supplies DC 48 V power", and the "protrusion portion" is "a sheet member with a standing piece formed thereon".

[0055] [Specific details of the embodiment] The cable rack for the fire hydrant device will be explained in more detail below. a. Fire hydrant equipment b. Internal structure of the fire hydrant device c. Hydrant system cabling system d. Example of cable rack separating the cable path d1. Cable rack structure d2. Moving cable section d3. Cable insertion work d4. Another embodiment of the cable moving part in which a protrusion is arranged on the inner circumferential surface of the holding part d5. Other embodiments of the cable movement part having a polygonal shape e. Cable rack embodiment that does not separate the cable path f. Modifications of the present invention

[0056] [a. Fire hydrant equipment] A fire hydrant for tunnels, which is an example of a disaster prevention equipment storage device to which the cable rack of this embodiment can be attached, will be described in more detail below. As shown in Figure 1, the fire hydrant device 10 is divided into a housing 10a for the fire hydrant storage section and a housing 10b for the fire extinguisher storage section, and decorative frames 11a and 11b are attached to the front of the housings 10a and 10b.

[0057] The door opening of the decorative frame 11a on the fire hydrant storage section side is divided into upper and lower sections, and a forward-leaning fire hydrant door 12 that opens downward on hinges 12a is installed at the bottom of the door opening, and a maintenance door 14 that opens upward on hinges 14a is installed at the top of the door opening, and inside the fire hydrant storage section, a fire hose with a nozzle and valves including a fire hydrant valve are stored.

[0058] On the left side of the door opening of the decorative frame 11b provided on the fire extinguisher storage section side, a fire extinguisher door 18 that opens sideways to the left on hinges 18a is provided, making it possible to store, for example, two fire extinguishers in the fire extinguisher storage section inside. In addition, a sight window 29 is provided below the fire extinguisher door 18, making it possible to check whether a fire extinguisher is present from outside.

[0059] An electrical door 22, which is an electrical panel having a door structure that opens sideways to the right on hinges 22a, is provided on the right side of the door opening of the decorative frame 11b. The electrical door 22 is provided with electrical equipment such as a red indicator light 24, a transmitter 25, and an answer lamp 26, and a telephone jack 27 is provided inside the housing of the electrical door 22.

[0060] The red indicator light 24 is always lit, allowing the location of the fire hydrant device 10 to be identified from a distance. In the event of a fire, 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, a fire alarm is output, and a response signal is sent from the disaster prevention receiving panel, causing the red indicator light 24 to flash and the response lamp 26 to light up.

[0061] [b. Internal structure of the fire hydrant device] The internal structure of the fire hydrant device will be described in more detail. As shown in Figures 2 to 4, the interior of the housing 10a, which serves as the fire hydrant storage section 16, is divided into a valve storage section 16a and a hose storage section 16b. Figure 3 is a cross section of the area indicated by the dashed line aa in Figure 2.

[0062] A water supply pipe 31 drawn in from outside is connected to a water hydrant 30 in the valve storage section 16a, and also branches downward to be connected to a fire hose 38 via a fire hydrant valve 32 and an automatic pressure regulating valve 34. The fire hydrant valve 32 is opened and closed using a fire hydrant valve opening / closing lever 36. When the fire hydrant valve opening / closing lever 36 is opened or closed, the fire hydrant valve 32 is opened and closed in conjunction with the opening and closing of the fire hydrant valve 32 by a well-known wire link mechanism, and a pump start interlock switch 44 provided in the operation box is turned on and off. In addition, a pump start switch 42 for use by the fire brigade is provided to the upper right of the water hydrant 30.

[0063] A hose storage frame 35 is provided in the hose storage section 16b, and a fire hose 38 is pulled in from below and stored by being wound inward clockwise or counterclockwise. A nozzle 40 is attached to the tip of the fire hose 38 pulled out through a hose guide 37, and the nozzle 40 is held detachably in a nozzle holder 41.

[0064] The interior of housing 10b (on the fire extinguisher door 18 side) is fire extinguisher storage section 20, which stores two fire extinguishers 39, as shown in Fig. 3. Terminal boxes 28a and 28b are installed on the rear surface of fire extinguisher storage section 20. Red indicator light 24 provided on electrical door 22 is connected to terminal box 28a via a wiring cable, and transmitter 25, answer lamp 26, and telephone jack 27 provided on electrical door 22 are connected to terminal box 28b via wiring cables, and further, pump start switch 42 and pump start interlock switch 44 provided in valve storage section 16a are connected via wiring cables.

[0065] A cable rack 48 is installed in the fire hydrant storage section 16 inside the housing 10a. As shown in Fig. 4, the cable rack 48 has an open top, forms a first line path 60 and a second line path 62 that are separated in the front-to-rear direction, and is installed in an empty space inside the housing 10a, for example, an empty space at the front upper part of the housing 10a. Also, as shown in Figs. 2 and 3, the cable rack 48 is arranged in the left-to-right direction in a range from approximately the center of the valve storage section 16a, through the hose storage section 16b, to just before the partition wall 21 between it and the fire extinguisher storage section 20, and a cable passage opening is opened in the partition wall 21 opposite the left end of the cable rack 48.

[0066] The high-voltage cable 53 drawn into the valve storage section 16a from the outside is inserted into the first line 60 from the inlet at the right end of the cable rack 48, drawn out to the fire extinguisher storage section 20 side through the first line 60, and connected to the terminal box 28a.The low-voltage 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 line 62 from the inlet at the right end of the cable rack 48, drawn out to the fire extinguisher storage section 20 side through the second line 62, and connected to the terminal box 28b.

[0067] [c. Fire hydrant cable wiring system] The cable wiring system for the electrical equipment provided in the fire hydrant device will be described in more detail below. As shown in Figure 5, the electrical equipment provided in the fire hydrant device 10 includes a red indicator light 24, a transmitter 25, a response lamp 26, and a telephone jack 27 on an electrical door 22 arranged in the fire extinguisher storage section 20, and the red indicator light 24 is connected to a terminal block in a terminal box 28a, and the transmitter 25, the response lamp 26, and the telephone jack 27 are connected to a terminal block in a terminal box 28b.

[0068] In addition, a pump start switch 42 and a pump start interlock switch 44 are provided in the valve storage section 16a of the fire hydrant device 10, and are connected to the terminal block of the terminal box 28b provided in the fire hydrant storage section 20 by cable wiring through a cable rack 48.

[0069] A high-voltage cable 53 that supplies AC 100V power from the outside is drawn into the valve storage section 16a of the fire hydrant device 10, and is drawn out to the fire hydrant storage section 20 side through the first line 60 of the cable rack 48 and connected to the terminal block of the terminal box 28a, thereby illuminating a red indicator light 24 is connected to.

[0070] In addition, a low-voltage cable 55 (which is a single multi-core cable but is represented in the cable wiring system of FIG. 5 as a telephone cable 55a, a response lamp cable 55b, a transmitter cable 55c, and a switch cable 55d), which is a multi-core cable that supplies DC 48V power from the outside, is pulled into the valve storage section 16a of the hydrant device 10, and is pulled out to the fire hydrant storage section 20 side through the second line 62 of the cable rack 48 and connected to the terminal block of the terminal box 28b, thereby connecting it to the telephone jack 27, response lamp 26, transmitter 25 of the electrical door 22, and the pump start switch 42 and pump start interlock switch 44 provided in the valve storage section 16b.

[0071] 6, the pump start switch 42 and the pump start interlock switch 44 of the valve storage section 16b are 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 section of the pump start switch 42. Also, the wiring of the pump start switch 42 and the pump start interlock switch 44 is connected to the wiring of the transmitter 25 by a crossover wiring between the terminal block of the terminal box 28b to which 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 to which the wiring of the transmitter 25 is connected.

[0072] [d. An embodiment of a cable rack that separates cable paths] An embodiment of the cable rack 48 that separates the cable passage will be described in more detail. Fig. 7 shows the cable rack 48 of this embodiment in a perspective view, and Fig. 8 shows the cable rack 48 of Fig. 7 from above (A), from the front (B), and from the right side (C).

[0073] (d1. Cable rack structure) 7 and 8, the cable rack 48 is made up of a rack main body 50 and cable transfer sections 70 and 72. The rack main body 50 is, for example, a long, box-shaped member that is open at the top and formed with the left-right direction as the longitudinal direction, and is made up of a front panel 52, a partition panel 54, a back panel 56, and a bottom panel 58, and is divided in the front-rear direction by the partition panel 54 to form a first line path 60 and a second line path 62. In addition, mounting holes 59 are formed in two places, left and right, on the upper edge of the front panel 52 that closes the front part of the rack main body 50, for mounting the cable rack 48 on the housing 10a side.

[0074] The bottom plates 58 corresponding to the first line 60 and the second line 62 separated by the partition plate 54 are each formed with guide openings 64, 66 that are elongated and open from the right side, which is the inlet side, to the left side, which is the outlet side. Cable transfer sections 70, 72 are disposed in the guide openings 64, 66, respectively.

[0075] (d2. Moving cable part) The cable movement sections 70, 72 are provided in guide openings 64, 66 formed in the bottom plate 58 corresponding to the first line 60 and the second line 62 shown in Figures 7 and 8. The cable movement sections 70, 72 detachably hold one end of the high-voltage cable 53 or the low-voltage cable 55 and move along the guide openings 64, 66 from the inlet side to the outlet side, thereby inserting the high-voltage cable 53 into the first line 60 and the low-voltage cable 55 into the second line 62. The structure and mechanism are arbitrary, but may be, for example, the structure shown in Figure 9.

[0076] 9 shows the cable moving part 70 arranged in the guide opening 64 of the first line 60, with (A) showing the side view before holding the high-voltage cable, (B) showing the side view after holding the high-voltage cable, and (C) showing the front view. Note that the cable moving part 72 arranged in the guide opening 66 of the second line 62 differs in that it holds the low-voltage cable 55, but is otherwise similar.

[0077] The cable moving section 70 is composed of an arc-shaped cable holding section 74 that functions as a cable holding section, a bolt (fastening shaft member) 76 that functions as a movement operating section, a nut (fastening receiving member) 78 that functions as a movement fixing section, and a washer 77.

[0078] The arc-shaped cable holding portion 74 is formed by bending a leaf spring member made of material such as stainless steel so that it can hold the high-voltage cable 53.The structure is such that arc-shaped holding portions 74b rise from both the front and back sides of a U-shaped fixing portion 74a that is open at the top, and receiving portions 74c that curve outward to the left and right and have an open top rise from the top of the holding portion 74b.

[0079] 9(A), the distance D1 inside the arc-shaped holding portion 74b through which the horizontal center line passes is a predetermined value that is smaller than the outer diameter D2 of the held high-voltage cable 53, as shown in FIG. 9(B). The holding force of the arc-shaped cable holding portion 74 for holding the high-voltage cable 53 is determined by the difference between the distance D1 before the high-voltage cable 53 is held and the outer diameter D2 of the high-voltage cable 53. That is, as shown in FIG. 9(B), the holding force is the spring force generated by the displacement of the holding portion 74b when the high-voltage cable 53 is pushed into the receiving portion 74c and held between the holding portions 74b. Therefore, the smaller the distance D1, the stronger the holding force obtained.

[0080] The upper end of a bolt 76, which functions as a movement operation part, is fixed to the lower surface (bottom) of the fixing part 74a of the arc-shaped cable holding part 74. The bolt 76 may be fixed to the lower surface of the fixing part 74a by any method, such as spot welding, or by crimping, in which a columnar protrusion formed on the upper end of the bolt 76 is fitted into a through-hole formed on the lower surface of the fixing part 74a and crushed.

[0081] A bolt 76 fixed to the underside of the fixing portion 74a of the arc-shaped cable holding portion 74 protrudes downward from the rack body 50 through a guide opening 64 formed in the bottom plate 58 in correspondence with the first cable path 60. A nut 78, which functions as a movable fixing portion, is screwed onto the bolt 76 protruding downward from the guide opening 64, with a washer 77 interposed therebetween.

[0082] When moving the cable moving part 70 arranged in the first wire line 60, by putting one's hand under the cable rack 48, it is possible to operate the bolt 76 protruding from the bottom 58 of the rack main body 50 as shown in Fig. 9, and by moving the bolt 76, it is possible to move the arc-shaped cable holding part 74 arranged in the first wire line 60. At this time, if the position of the cable moving part 70 relative to the rack main body 50 is fixed with a nut 78, the nut 78 must be loosened before moving the bolt 76.

[0083] 10 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, but for example, the cable rack 48 is fixed to the housing 10a by passing a bolt 81 through a mounting hole of an L-shaped mounting member 82 provided on the ceiling inside the housing 10 on the back side of the decorative frame 11a located above the door rack opening where the maintenance door 14 is provided and through a mounting hole 59 on the upper edge of the front plate 52 of the rack main body 50, and then screwing the bolt 81 into a nut 83. A wire passage opening 80 is formed in the bulkhead 21 opposite the outlet port at the left end of the first wire passage 60 and the second wire passage 62 formed by the rack main body 50.

[0084] (d3. Cable insertion work) The work of inserting a distribution cable into a cable rack will be explained in more detail below, taking the case of inserting a high-voltage cable into the first line. Figure 11 shows the cable insertion work in chronological order.

[0085] When inserting the high-voltage cable 53 into the cable rack 48, first, as shown in Figure 11 (A), operate the bolt 76 protruding below the bottom plate 58 of the rack main body 50 to move the cable moving part 70, which has been loosened by the nut 78, toward the inlet side (right side) of the rack main body 50, and push one end of the high-voltage cable 53 into the cable moving part 70 to hold it in place.

[0086] Next, as shown in FIG. 11(B), the bolt 76 is moved from the inlet side to the outlet side (left side), so that the wiring cable held by the cable moving part 70 is of One end is moved toward the outlet side, and the high-voltage cable 53 is inserted into the first line 60.

[0087] 10, a wire passage opening 80 formed in partition wall 21 is located on the wire outlet side of rack body 50, and one end of high-voltage cable 53 moved to the wire outlet side is positioned near wire passage opening 80. Then, by reaching in from the fire extinguisher storage section 20 side and pulling out high-voltage cable 53 to the fire extinguisher storage section 20 side so that one end of high-voltage cable 53 can be connected to terminal box 28a, the work of inserting high-voltage cable 53 into first wire line 60 is completed.

[0088] After completing the insertion of the high-voltage cable 53 into the first wiring line 60, the nut 78 is tightened to fix the position of the cable movement part 70, preventing the high-voltage cable 53 from moving after insertion. The position of the cable movement part 70 can be arbitrarily determined. For example, as shown in FIG. 11(C), the high-voltage cable 53 drawn out toward the fire extinguisher storage section 20 can be held in one hand, and a lateral force greater than the frictional force between the high-voltage cable 53 and the cable movement part 70 can be applied to the cable movement part 70 to move the cable movement part 70 to the center of the first wiring line 60 while maintaining the position of the high-voltage cable 53, and then the position of the cable movement part 70 can be fixed with the nut 78. The same applies to the case where the low-voltage cable 55 is inserted into the second wiring line 62 formed in the cable main body 50.

[0089] By inserting the high-voltage cable 53 and the low-voltage cable 55 in this manner, the distance between the high-voltage cable 53 and the low-voltage cable 55 inserted into the first line 60 and the second line 62 can be kept constant, and the maximum physically possible distance can be reliably achieved, thereby reducing the impact of noise and the like from the high-voltage cable on the low-voltage cable.

[0090] (d4. Other embodiments of the cable moving part in which a protrusion is arranged on the inner peripheral surface of the holding part) The present invention relates to a cable moving section having a cable moving part, the cable moving part being provided with a cable moving part, the cable moving part being provided with a cable moving part, and the cable moving part being provided with a cable moving part. The cable moving part is provided with a cable moving part having a cable moving part, the cable moving part being provided with a cable moving part, and the cable moving part being provided with a cable moving part. The cable moving part is provided with a cable moving part, and the cable moving part is ...

[0091] Fig. 12 shows another embodiment of the cable moving part shown in Fig. 9. This embodiment is characterized in that, by the use of an upright tapered piece 92, the sliding resistance between the holding part 74b and the wiring cable increases when the cable moving part 70, while holding the wiring cable, moves from the inlet side to the outlet side, and decreases when the cable moving part 70 moves in the opposite direction, from the outlet side to the inlet side. Fig. 12(A) shows a side view, Fig. 12(B) shows a cross section seen from the rear, and Fig. 12(C) shows a cross section seen from the top. Note that Fig. 12(B) is a cross section at the location bb indicated by the dashed line in Fig. 12(A), and Fig. 12(C) is a cross section at the location cc indicated by the dashed line in Fig. 12(A).

[0092] 13 shows the sheet member 90 having the upright tapered piece 92 arranged in the holding portion 74b of FIG. 12 taken out and unfolded, with FIG. 13(A) showing the unfolded state and FIG. 13(B) showing a cross-sectional view. Note that FIG. 13(B) is a cross-section of the portion dd indicated by the dashed line in FIG. 13(A).

[0093] As shown in Figure 12, the cable moving part 70 of this embodiment, like the embodiment of Figure 9, functions as a cable holding part and is composed of an arc-shaped cable holding part 74 consisting of a fixing part 74a, a holding part 74b, and a receiving part 74c, a bolt (fastening shaft member) 76 which functions as a moving operating part, a nut (fastening receiving member) 78 which functions as a moving fixing part, and a washer 77.

[0094] In addition, in this embodiment, a sheet member 90 having a plurality of upright tapered pieces 92 formed thereon is disposed on the inner circumferential surface of each of the opposing holding portions 74b.

[0095] 13(A), sheet member 90 is, for example, a rectangular synthetic resin sheet that corresponds in size to the inner peripheral surface of holding portion 74b when unfolded, and has standing tapered pieces 92 formed in 6 rows and 3 columns. As shown in FIG. 13(B), one end side of standing tapered piece 92 (the outlet side when placed in holding portion 74b) is fixed to the sheet surface of sheet member 90, and the other end side (the incoming side when placed in holding portion 74b) is cut out into, for example, a rectangle and stands up so as to be separated obliquely from the sheet surface of sheet member 90.

[0096] As shown in FIG. 11(A), the cable moving part 70 of this embodiment is moved toward the inlet side of the rack main body 50, and one end of the wiring cable is pushed into and held by the cable moving part 70. When the operation of moving the one end of the wiring cable held by the cable moving part 70 toward the outlet side is performed as shown in FIG. 11(B), as the cable moving part 70 moves, a force acts on the other end side of the standing tapered piece 92 in a direction away from the sheet surface of the sheet member 90. Therefore, the holding part 74b where the standing tapered piece 92 is arranged and the high-voltage cable 53 This increases the sliding resistance between the cable and the outlet, allowing the wiring cable to be held more securely and moved toward the outlet.

[0097] In addition, since the holding force of the arc-shaped cable holding portion 74 can be improved by increasing the sliding resistance, the holding force due to the spring force generated by the displacement of the holding portion 74b can be weakened accordingly, making it possible to easily attach and detach the wiring cable to and from the cable moving portion 70.

[0098] Furthermore, as shown in FIG. 11(C), when the cable moving part 70 is moved to the center of the line while the position of the wiring cable is maintained, and the position of the cable moving part 70 is fixed by the nut 78, the cable moving part 70 is moved from the outlet side to the inlet side without moving the position of the inserted wiring cable. However, as the cable moving part 70 moves, a force acts on the other end side of the upright tapered piece 92 in a direction approaching the sheet surface of the sheet member 90, so that the high-voltage cable 53 The sliding resistance between the cable and the cable moving portion 70 is reduced, and the cable moving portion 70 can be smoothly moved to the fixing position with a light force without moving the position of the inserted wiring cable.

[0099] (d5. Other embodiments of the cable movement part having a polygonal shape) Another embodiment of the cable transfer section used to pass the distribution cable through the cable rack will now be described in more detail.

[0100] Fig. 14 shows another embodiment of the cable moving part shown in Fig. 9, and this embodiment is characterized in that the cable holding part is formed by bending a leaf spring member into a triangular shape that is open at the top, Fig. 14(A) shows a side view before holding a high-voltage cable, Fig. 14(B) shows a side view after holding a high-voltage cable, and Fig. 14(C) shows a front view. Note that this can also be applied as another embodiment of the cable moving part 72 placed in the guide opening 66 of the second wire line 62.

[0101] The cable moving section 84 of this embodiment is made up of a triangular cable holding section 86 that functions as a cable holding section, a bolt 76 that functions as a movement operating section, a nut 78 that functions as a movement fixing section, and a washer 77.

[0102] The triangular cable holding portion 86 is formed by bending a plate spring member made of, for example, stainless steel so that it can hold the high-voltage cable 53. Holding portions 86b corresponding to the triangular slopes rise from both the front and rear of the fixing portion 86a, which forms the lower surface (bottom), and a receiving portion 86c that curves outward in the front and rear directions and has an open top rises from the top of the holding portion 86b, which forms the apex of the triangle.

[0103] In the state before the cable is held in Figure 14(A), if the diameter of an imaginary circle inscribed at three points, the fixing part 86a and the holding parts 86b on both the front and rear sides, is D3, the base angle of the fixing part 86a is set so that this diameter D3 is a predetermined value smaller than the outer diameter D2 of the high-voltage cable 53 held in the triangular cable holding part 86 in Figure 14(B).

[0104] The holding force of triangular cable holding part 86 for high-voltage cable 53 is determined by the difference between diameter D3 of this imaginary circle and outer diameter D2 of high-voltage cable 53. That is, as shown in Fig. 14(B), when high-voltage cable 53 is pushed into receiving part 86c that is open at the top and held in a state of three-point contact by being sandwiched between fixing part 86a and holding parts 86b on both the front and rear sides, the holding force is determined by the spring force caused by the displacement of holding part 86b, and the smaller the diameter D3 of the imaginary circle (the smaller the base angle of fixing part 86a), the stronger the holding force obtained. The remaining components, such as bolt 76 that functions as a movement operating part, nut 78 that functions as a movement stopper, and washer 77, are configured in the same way as in cable movement part 70 shown in Fig. 9.

[0105] The shape of the holding portion formed on the cable moving portion is not limited to the above-mentioned open arc or triangle, but may be other curved shapes such as polygons or ellipses.

[0106] In this embodiment, protrusions may be provided on the inner peripheral surface of the holding portion. Furthermore, since the holding portion of this embodiment has fewer contact areas between the inner peripheral surface of the holding portion and the outer periphery of the wiring cable than the arc-shaped holding portion, protrusions may be provided only at the contact areas between the inner peripheral surface and the outer periphery of the wiring cable.

[0107] [e. An embodiment of a cable rack that does not separate the cable path] An embodiment of a cable rack that does not separate the cable paths will be described in more detail below. Figure 15 shows the cable rack of this embodiment, with Figure 15(A) showing the top surface, Figure 15(B) showing the front surface, and Figure 15(C) showing the right side surface.

[0108] In the cable rack 48 of this embodiment, the wiring path formed in the rack body 50 is not separated in the front-to-rear direction by partition plates, unlike the embodiments of Figures 7 and 8, but is formed as a single wiring path 65.

[0109] The cable rack 48 is comprised of a rack body 50 and cable transfer sections 70, 72. The rack body 50 is, for example, a long, box-shaped member that is open at the top and extends in the left-right direction. The rack body 50 is comprised of a front panel 52, a back panel 56, and a bottom panel 58. The bottom panel 58 has two rows of elongated guide openings 64, 66 that are separated in the front-rear direction and extend from the inlet side (right side) to the outlet side (left side). Cable transfer sections 70, 72 are disposed in each of the guide openings 64, 66. Note that the cable transfer sections 70, 72 may be the cable transfer section 84 of another embodiment shown in FIG. 14, and the shape of the cable holder provided in the cable transfer section is not limited to the above-described arc-shaped or triangular shape that opens at the top, but may also be a curved shape such as a polygon or ellipse.

[0110] In this embodiment as well, with one end of the high-voltage cables 53 and the low-voltage cables 55 held by the cable moving parts 70, 72 moved to the inlet side of the wiring path 65, the bolt 76 protruding from the bottom plate 58 of the rack body 50 is moved toward the outlet side, moving the cable moving parts 70, 72 toward the outlet side, and moving one end of the high-voltage cables 53 and the low-voltage cables 55 held by the cable moving parts 70, 72 toward the outlet side, thereby inserting the high-voltage cables 53 and the low-voltage cables 55 into the wiring path 65, thereby simply and easily inserting the wiring cables in two rows into the wiring path 65. Furthermore, after the insertion of the high-voltage cables 53 and the low-voltage cables 55 is completed, the positions of the cable moving parts 70, 72 are fixed with nuts 78, thereby preventing the inserted high-voltage cables 53 and the low-voltage cables 55 from moving and ensuring a separation distance.

[0111] [f. Modifications of the present invention] Modified examples of the cable rack according to the present invention will be described in more detail. In addition to the above-described embodiment, the cable rack according to the present invention includes the following modifications.

[0112] (Cable rack for disaster prevention equipment storage device) The above embodiment takes a cable rack for a fire hydrant device as an example of a disaster prevention equipment storage device, but is not limited to this and can be applied to any device that has a cable rack for passing wiring cables through, such as a cable rack for a fire extinguisher box or a reporting device that has an electrical panel on which electrical equipment is arranged, or a cable rack for a storage box for disaster prevention equipment that has electrical equipment installed indoors in a building, etc.

[0113] (Installation position and insertion work of cable rack) In the above embodiment, it is assumed that the cable rack 48 is installed in the empty space at the upper front of the housing 10a, and that the wiring cable is inserted from the front of the housing 10a. However, the cable rack is installed to correspond to the empty space which differs for each device, and the position where the wiring cable is inserted is determined depending on the position of the empty space and the position of the opening of the device, etc., so the positions of the cable rack's inlet / outlet, guide opening and cable moving part are not limited to these, but are determined according to the location and environment where the cable rack is installed.

[0114] (Position of guide opening relative to the track) In the above embodiment, the cable transfer parts 70, 72 are arranged in the guide openings 64, 66 that are formed on the bottom plate 58 of the rack body 50 and that open from the line inlet side to the line outlet side, but this is not limited to this. For example, the guide openings 64, 66 may be formed on the front plate 52 of the rack body 50 and open from the line inlet side to the line outlet side, and the cable transfer parts 70, 72 may be arranged in the guide openings 64, 66. In this case, the insertion work can be performed by operating the bolts 76 of the cable transfer parts 70, 72 that protrude toward the front side where the worker is located. Therefore, even if the cable rack 48 is installed on the rear side of the hydrant storage section 16 of the hydrant device 10, the workability of the insertion work is not impaired as with conventional cable racks.

[0115] (The cable path formed by the cable rack) In the above embodiment, the wiring line is divided into two parts in the front-to-back direction, a first wiring line and a second wiring line, and in other cases the wiring line is not divided, but this is not limited to this, and additional wiring lines may be provided if more wiring cables are to be inserted.

[0116] The inlet and outlet ports of the cable line may also be covered with a shielding material. Covering the inlet and outlet ports with a shielding material improves the shielding of the cable line, reducing the effects of noise, etc. Furthermore, by making a slit in the shielding material for inserting the cable, the wiring cable can be inserted without removing the shielding material. Furthermore, when multiple cable lines are formed, the inlet and outlet ports of all the cable lines may not be covered with the shielding material, but only selected cable lines may be covered.

[0117] The wiring line may also be covered with a shielding material, such as a shielding sheet. The shielding sheet can further improve shielding and reduce the effects of noise, etc. In addition, when multiple wiring lines are formed, it is possible to cover only selected wiring lines with the shielding sheet rather than covering all of the wiring lines with the shielding sheet.

[0118] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0119] 10: Fire hydrant equipment 10a, 10b: Housing 11a, 11b: decorative frame 12: Fire hydrant door 14: Maintenance door 16: Fire hydrant storage area 16a: Valve storage area 16b: Hose storage section 18: Fire extinguisher door 20: Fire extinguisher storage compartment 21: Bulkhead 22: Electric door 24: Red indicator light 25: Transmitter 26: Answer lamp 27: Telephone Jack 28a, 28b: Terminal box 30: Water 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 hose 40: Nozzle 42: Pump start switch 44: Pump start interlock switch 48: Cable rack 50: Rack body 52: Front panel 53: High voltage cable 54: Partition board 55: Low-voltage cable 56: Back plate 58: Bottom plate 60: First Line 62: Second line 64,66: Guide opening 65: Railroad tracks 70, 72, 84: Cable moving section 74: Arc-shaped cable holder 74a,8 6 a: Fixed part 74b,8 6 b: Holding part 74c,8 6 c: Receiving section 76: Bolt 77: Washer 78: Nut 80: Wire entrance 82: Mounting material 86: Triangular cable holder 90: Sheet material 92: Standing tapered piece

Claims

1. A cable rack that forms a path for a wiring cable that is inserted from an inlet to an outlet, an exterior member that covers at least a portion of the periphery of the wire path and has a guide portion on the inside; a cable moving section that detachably holds the wiring cable and is disposed on the guide section; Equipped with the guide portion is a guide opening formed in the exterior member from the inlet side to the outlet side, The cable moving part is a cable holding portion that detachably holds the wiring cable; a movement operation unit that enables an operation to move the cable movement unit along the guide opening; a moving and fixing part that fixes the cable moving part to the exterior member; Equipped with A cable rack characterized in that, while the wiring cable is held in the cable moving section, the wiring cable is inserted into the wiring path by moving the cable moving section along the guide section from the inlet side to the outlet side.

2. The cable rack according to claim 1, The wiring path is partitioned to form a plurality of paths, A cable rack characterized in that the guide portions are formed inside the exterior member corresponding to each of the wire paths, and the cable movement portions are arranged relative to each of the guide portions.

3. The cable rack according to claim 1, The guide portion is formed in plurality on the inside of the exterior member, A cable rack, characterized in that the cable moving portion is arranged for each of the guide portions.

4. The cable rack according to claim 1, The cable rack is characterized in that the cable holding portion is a leaf spring member having a receiving portion into which the wiring cable is pushed and an arc-shaped or polygonal holding portion that holds the wiring cable.

5. The cable rack according to claim 4, A cable rack characterized in that a protrusion is arranged at least at the contact portion of the inner surface of the holding portion with the wiring cable, which increases the sliding resistance between the holding portion and the wiring cable when the wiring cable is moved from the inlet side to the outlet side while being held, and reduces the sliding resistance when the wiring cable is moved from the outlet side to the inlet side.

6. 6. The cable rack according to claim 1, the moving operation unit is a fastening shaft member fixed to a bottom portion of the cable holding unit and protruding outside the exterior member through the guide opening, The cable rack is characterized in that the moving and fixing portion is a fastening receiving member through which the fastening shaft member is inserted and which fixes the cable moving portion to the exterior member.

7. 7. The cable rack according to claim 1, The cable rack is characterized in that the exterior member is made of a conductive material.

8. The cable rack according to any one of claims 1 to 7, A cable rack characterized in that at least one of the wire paths is further covered with a shielding member over at least a portion of its periphery.

9. 9. The cable rack according to claim 1, A cable rack characterized in that at least one of the inlet and outlet is covered with a shielding member having a notch for inserting the wiring cable.

10. A disaster prevention equipment storage device comprising the cable rack according to any one of claims 1 to 9.

11. A disaster prevention device comprising a storage box having the cable rack according to any one of claims 1 to 9 and electrical equipment.

Images