Disaster prevention vehicles

Abstract

To provide a disaster prevention vehicle equipped with both a winch device for rescue operation and a fire pump for fire fighting, which can store a large number of pieces of equipment necessary for fire fighting and the rescue operation.SOLUTION: A disaster prevention vehicle includes: a right and left pair of sub-frames 8 provided on a right and left pair of chassis frames 5; a storage chamber 4 for storing equipment provided on the sub-frames 8; a fire pump 30 connected to a PTO shaft 9 for taking out power of a travelling engine 6 at a front side of the vehicle, and driven by the travelling engine 6; and a winch device 20 for performing feeding out and taking up of a wire 25. The fire pump 30 and the winch device 20 are attached to the sub frame 8 so that they are positioned below a bottom wall of the storage chamber 4 at a back side of rear wheels 1b.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a disaster prevention vehicle equipped with a storage compartment for storing equipment, a winch device, and a fire pump for carrying out rescue operations and firefighting operations. [Background technology]

[0002] Conventionally, disaster prevention vehicles for use in the event of a fire or other disaster include rescue vehicles equipped with various equipment and tools for rescue operations, and fire pump trucks equipped with fire pumps (see, for example, Patent Documents 1 and 2). In particular, there is a demand for a disaster prevention vehicle equipped with a winch device and a fire pump, which can perform rescue operations and firefighting operations simultaneously. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-345927 [Patent Document 2] Japanese Patent Application Publication No. 10-100796 Summary of the Invention [Problem to be solved by the invention]

[0004] Disaster prevention vehicles such as those described above need to be equipped with numerous pieces of equipment in order to simultaneously perform rescue and firefighting activities, and therefore space must be secured to store all of the equipment. However, in conventional fire pump trucks, the fire pumps are often located on top of the chassis, making it difficult to secure space to store additional rescue equipment necessary for rescue operations. On the other hand, conventional rescue vehicles have a storage compartment that stores numerous pieces of equipment necessary for rescue operations, but it is difficult to secure additional space within the storage compartment for installing fire pumps, fire hoses, etc. Furthermore, if a winch device is to be installed in addition to the storage compartment and fire pump that stores numerous pieces of equipment, it becomes even more difficult to secure space.

[0005] The present invention has been made in consideration of these points, and its purpose is to provide a disaster prevention vehicle that is equipped with both a winch device for rescue operations and a fire pump for firefighting operations, and is capable of storing a large number of pieces of equipment necessary for firefighting and rescue operations. [Means for solving the problem]

[0006] The present invention provides means for solving the above-mentioned problems as follows: That is, a first invention is characterized in that it comprises a pair of left and right subframes provided on a pair of left and right chassis frames, a storage compartment for storing equipment provided on the subframes, a fire pump connected to a PTO shaft that extracts power from a traveling engine at a front part of a vehicle and driven by the traveling engine, and a winch device that pays out and reels in a wire, the fire pump and the winch device being attached to the subframes so as to be located rearward of the rear wheels of the vehicle and below the bottom wall of the storage compartment.

[0007] According to the first aspect of the present invention, a storage compartment for storing equipment is provided on a subframe, and the fire pump and the winch device are attached to the subframe so as to be located rearward of the vehicle's rear wheels and below the bottom wall of the storage compartment. Therefore, a large number of pieces of equipment necessary for firefighting and rescue activities can be stored in the area above the subframe. Furthermore, the winch device and the fire pump are located rearward of the vehicle's rear wheels so as not to interfere with driving-related equipment typically found in a chassis, such as a drive shaft, rear suspension device, and rear axle housing. Furthermore, because the winch device and the fire pump are located below the bottom wall of the storage compartment, they do not interfere with the equipment used in firefighting and rescue activities. Therefore, a disaster prevention vehicle can be provided that is equipped with both a winch device for rescue activities and a fire pump for firefighting activities and is capable of storing a large number of pieces of equipment necessary for firefighting and rescue activities.

[0008] In the second invention, in the first invention, the winch device is attached to the subframe via a connecting unit, and the connecting unit has left and right connecting members that connect the pair of left and right subframes together, and a downward extension member that extends downward from the left and right connecting members and has a lower end to which a component of the winch device is attached, and the downward extension members are provided in plurality at predetermined intervals in the longitudinal direction of the left and right connecting members, the fire pump has a water intake and / or a water discharge port that opens toward the rear of the vehicle and is positioned rearward of the winch device, and the PTO shaft is configured to pass between the plurality of downward extension members.

[0009] According to the second aspect of the present invention, the fire pump has an intake port and / or an outlet port that open toward the rear of the vehicle, allowing water to be taken in or discharged from the rear of the vehicle. Furthermore, the piping from the fire pump can be configured shorter and simpler than when the fire pump is located in the center of the vehicle, thereby increasing the space available for storing equipment. Furthermore, the PTO shaft connecting the power takeoff of the traveling engine at the front of the vehicle to the fire pump located behind the rear wheels of the vehicle is configured to pass between multiple downward extension members to which components of the winch device are attached. This shortens the overall length of the PTO shaft, thereby saving space, compared to when the PTO shaft is laid out to avoid the winch device and the connecting unit.

[0010] A third invention is characterized in that, in the first or second invention, the PTO shaft has three or more universal joint portions and two or more intermediate shaft portions connecting adjacent universal joint portions, and a predetermined one of the plurality of intermediate shaft portions is rotatably supported by a bearing portion, and the bearing portion is attached to a bearing support member whose both ends are supported by the left and right sub-frames.

[0011] According to the third aspect of the present invention, the PTO shaft connecting the power takeoff of the traveling engine at the front of the vehicle with the fire pump located behind the rear wheels is long and extends from the front to the rear of the vehicle, but the direction of extension of each intermediate shaft can be adjusted using universal joints to transmit power from the traveling engine to the fire pump. Furthermore, certain intermediate shafts are rotatably supported by bearings, which are supported on the subframe via bearing support members, so the PTO shaft can be reliably maintained at the same height as the subframe. This increases the flexibility in layout of the PTO shaft while ensuring storage space for accessories stored above the subframe.

[0012] In a fourth invention, in the third invention, the bearing portion is attached to the upper side of the bearing support member, and the wire of the winch device is configured to extend forward of the vehicle toward an external withdrawal outlet provided at the front of the vehicle and to pass below the bearing support member.

[0013] According to the fourth aspect of the present invention, the PTO shaft for driving the fire pump is mounted above the bearing support member, while the winch device wire is mounted below the bearing support member. This allows the bearing support member to be used as a restraining member to prevent the PTO shaft and the wire from coming into contact with each other. Furthermore, because the wire is positioned lower than the PTO shaft, even if the wire becomes loose and hangs down due to gravity, it will not interfere with the PTO shaft. This prevents problems such as the wire becoming tangled around the rotating PTO shaft when the winch device wire becomes loose due to equipment trouble, even if the PTO shaft and the wire are not significantly different in height. Therefore, by ensuring that the PTO shaft and the wire are not significantly different in height, a disaster prevention vehicle can be created that can reduce problems while ensuring storage space for equipment stored above the subframe.

[0014] In the fifth invention, in any one of the first to fourth inventions, the front end of the PTO shaft is connected to the power take-off port of the clutch / transmission unit connected to the rear of the driving engine, and the rear end of the PTO shaft is connected to the PTO shaft connection part of the fire pump offset to one side relative to the center of the vehicle in the left-right direction, and the wire is configured to extend toward the front side of the vehicle from the wire supply port of the winch device offset to the other side relative to the center of the vehicle in the left-right direction, and the wire is configured to be guided using a pulley unit and pulled out of the vehicle so as not to overlap with the PTO shaft in a planar view.

[0015] According to the fifth configuration, the PTO shaft and the wire can be positioned at horizontal distances, eliminating the need to position them at vertical distances, allowing for a larger dimension between the bottom and ceiling walls of the storage shed. This allows for more storage space for equipment stored above the subframe. Furthermore, because the PTO shaft and the wire do not overlap vertically, problems such as the wire becoming tangled around the rotating PTO shaft can be prevented if the winch device's wire becomes loose due to equipment trouble. [Effects of the Invention]

[0016] In the disaster prevention vehicle of the present invention, the winch device and fire pump are located behind the rear wheels of the vehicle so as not to interfere with the vehicle's travel-related equipment. Furthermore, because the winch device and fire pump are located below the bottom wall of the storage compartment, they do not interfere with equipment used for firefighting and rescue operations. This allows for a disaster prevention vehicle that can accommodate both a winch device for rescue operations and a fire pump for firefighting operations, while also being able to store numerous pieces of equipment necessary for firefighting and rescue operations. Furthermore, the PTO shaft connecting the power takeoff of the travel engine at the front of the vehicle to the fire pump located behind the rear wheels of the vehicle is configured to pass between multiple downward extension members to which components of the winch device are attached. This allows for a shorter overall length of the PTO shaft, thereby saving space, compared to a PTO shaft layout designed to avoid the winch device and the connecting unit. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a side view of a disaster prevention vehicle according to a first embodiment of the present invention. [Figure 2] 1 is a plan view of a main part of a disaster prevention vehicle according to a first embodiment of the present invention. [Figure 3] 1 is a side view of a main part of a disaster prevention vehicle according to a first embodiment of the present invention. [Figure 4] 1 is a plan view of a winch device and a connecting unit according to a first embodiment of the present invention. [Figure 5] 1 is a simplified front view of a winch device and a connecting unit according to a first embodiment of the present invention. [Figure 6] FIG. 2 is a hydraulic circuit diagram of the winch device. [Figure 7] FIG. 6 is a plan view of a main part of a disaster prevention vehicle according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a side view of a main part of a disaster prevention vehicle according to a second embodiment of the present invention (with the winch device omitted). [Figure 9] FIG. 9 is a view taken along the arrow AA in FIG. 8. [Figure 10] FIG. 9 is a view taken along the arrow BB in FIG. 8. [Figure 11] FIG. 9 is a view taken along the arrow CC in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, a disaster prevention vehicle according to an embodiment of the present invention will be described with reference to the drawings.

[0019] FIG. 1 shows a disaster prevention vehicle 1 according to a first embodiment of the present invention. This disaster prevention vehicle 1 is a vehicle that is capable of simultaneously carrying out rescue operations and firefighting operations. The disaster prevention vehicle 1 has a front cabin 2 provided at the front of the vehicle, a rear cabin 3 provided behind the front cabin 2, and a storage bay 4 provided behind the rear cabin 3. A driver's seat is provided in the front cabin 2, and a rear seat where multiple team members can sit is provided in the rear cabin 3. The storage space of the storage bay 4 stores a large number of pieces of equipment necessary for firefighting and rescue operations.

[0020] Fig. 2 is a plan view of essential parts of a disaster prevention vehicle 1 according to a first embodiment of the present invention. Fig. 3 is a side view of essential parts of a disaster prevention vehicle 1 according to a first embodiment of the present invention. In Figs. 2 and 3, the disaster prevention vehicle 1 includes a pair of left and right sub-frames 8, 8 provided on a pair of left and right chassis frames 5, 5, a storage bay 4 for storing equipment provided on the sub-frames 8, 8, a fire pump 30 connected to a PTO shaft 9 that extracts power from a traveling engine 6 at the front of the vehicle and driven by the traveling engine 6, and a winch device 20 that pays out and winds up a wire 25.

[0021] A pair of left and right chassis frames 5, 5 extend in the longitudinal direction of the vehicle. The chassis frames 5, 5 are base members on which chassis manufacturers attach driving-related equipment. The driving-related equipment includes front wheels 1a, 1a and rear wheels 1b, 1b, a driving engine 6 attached to the front of the chassis frames 5, 5, a clutch and transmission unit 7 connected to the rear end of the driving engine 6, a drive shaft (not shown), a rear suspension device (not shown), and a rear axle housing (not shown). A power takeoff port 7a is provided at the top of the clutch and transmission unit 7, allowing power from the driving engine 6 to be taken off. Each subframe 8 is attached to the top surface of the chassis frame 5 so as to align with the chassis frame 5. The subframes 8, 8 are attached by body manufacturers and serve as base members on which the storage shed 4 and other body equipment are attached. In this embodiment, the subframes 8, 8 are formed to a length that matches the longitudinal length of the storage shed 4. That is, the sub-frames 8, 8 are not attached to the upper surfaces of the chassis frames 5, 5 on the vehicle front side of the storage shed 4.

[0022] Fig. 4 is a plan view of the winch device 20 and the connecting unit 11. Fig. 5 is a simplified front view of the winch device 20 and the connecting unit 11. As shown in Figs. 2 to 5, the winch device 20 is attached to the sub-frames 8, 8 so as to be located rearward of the rear wheels 1b, 1b of the disaster prevention vehicle 1 and below the bottom wall of the storage shed 4. More specifically, the winch device 20 is attached to the sub-frames 8, 8 via the connecting unit 11.

[0023] The connecting unit 11 has left and right connecting members 11a that connect the pair of left and right subframes 8 together, and a downward extension member 11b that extends downward from the left and right connecting members 11a and has a lower end to which components of the winch device 20 are attached. Two downward extension members 11b are provided at a predetermined interval in the longitudinal direction (left-right direction of the vehicle) of the left and right connecting members 11a. The two downward extension members 11b, 11b are attached to the left and right connecting members 11a offset to the left side of the vehicle with respect to the center of the vehicle in the left-right direction.

[0024] The winch device 20 has a main body 21 and a wire storage section 22. The main body 21 is attached to the left and right connecting members 11a using a main body mounting bracket 11c, and is located to the right of the vehicle relative to the wire storage section 22. The main body 21 has a wire supply port 21a, through which the wire 25 is inserted and removed, on the front side of the vehicle. The wire supply port 21a is located offset to the right of the vehicle with respect to the center of the vehicle in the left-right direction.

[0025] FIG. 6 is a hydraulic circuit diagram of the winch device 20. As shown in FIGS. 4 to 6, the main body 21 of the winch device 20 is internally provided with a mechanism for winding up the wire 25. More specifically, the main body 21 has a friction roller unit 26 and a power unit 27. The friction roller unit 26 has a grooved first friction drum 26a and a grooved second friction drum 26b, around which the wire 25 is wound several times. When a load is applied to the tip of the wire 25, the wire 25 is tightened toward the first friction drum 26a and the second friction drum 26b, generating frictional forces between the wire 25 and the first friction drum 26a and the second friction drum 26b. In this state, the first friction drum 26a and the second friction drum 26b are rotated, and the wire 25 is wound up. The power unit 27 is a hydraulic mechanism for driving the second friction drum 26b to rotate.

[0026] The power unit 27 includes a hydraulic oil tank 27a, a first hydraulic pump 27b, an electric motor 27f, a second hydraulic pump 27c, a control block 27e, and a variable hydraulic motor 27d. The electric motor 27f is connected to the first hydraulic pump 27b and is driven by power from an onboard battery (not shown) to rotate the first hydraulic pump 27b. The first hydraulic pump 27b supplies hydraulic oil from the hydraulic oil tank 27a to the variable hydraulic motor 27d via hydraulic piping and the control block 27e. The control block 27e includes various components for smoothly driving the variable hydraulic motor 27d. The variable hydraulic motor 27d is connected to the second friction drum 26b of the friction roller unit 26 by a drum drive shaft 26c and rotates the second friction drum 26b. The second hydraulic pump 27c is a variable displacement pump and is provided to change the rotational speed of the variable hydraulic motor 27d.

[0027] The wire storage section 22 has a generally short cylindrical outer shape and includes a mechanism for storing the wire 25 wound around the main body section 21 without tangling. The wire storage section 22 is attached to the lower ends of the two downward extension members 11b, 11b. The wire storage section 22 is connected to the main body section 21 by a wire guide section 23. The wire guide section 23 has a plurality of guide rollers 23b provided at predetermined intervals along an arc-shaped guide base 23a. The plurality of guide rollers 23b allow the wire 25 to move along the guide base 23a. The wire 25 can move smoothly between the main body section 21 and the wire storage section 22. The rotational motion of the drum drive shaft 26c is braked by a first brake section 28, and the rotational motion of the rotating section inside the wire storage section 22 is braked by a second brake section 29.

[0028] Next, as shown in FIGS. 2 and 3 , the fire pump 30 is attached to the subframes 8, 8 so as to be located rearward of the rear wheels 1b, 1b of the disaster prevention vehicle 1 and lower than the storage shed 4. The fire pump 30 has a water inlet 32 ​​and a water outlet 33 that open toward the rear of the vehicle, and is located rearward of the winch device 20. The fire pump 30 is attached to the pair of left and right subframes 8, 8, so as to extend further to the left of the left subframe 8. Therefore, an additional subframe 42 is provided further to the left of the left subframe 8, extending in the front-to-rear direction. The length of the additional subframe 42 is the length from the position of the winch device 20 to the position of the rear end of the vehicle. A pump support frame 41 is attached from the subframe 8 on the right side of the vehicle to the additional subframe 42, crossing the vehicle in the left-to-right direction. Although not shown, the fire pump 30 is attached so as to hang down from the pump support frame 41. The fire pump 30 has a PTO shaft connection part 31 on the front side of the vehicle. This PTO shaft connection portion 31 and the power takeoff port 7 a of the clutch / transmission portion 7 are connected by the PTO shaft 9 .

[0029] The PTO shaft 9 has three or more universal joints and two or more intermediate shafts that connect adjacent universal joints. Specifically, the PTO shaft 9 has a total of five intermediate shafts: a first intermediate shaft 9b, a second intermediate shaft 9d, a third intermediate shaft 9f, a fourth intermediate shaft 9h, and a fifth intermediate shaft 9j, in this order from the power takeoff port 7a of the clutch / transmission unit 7 toward the rear of the vehicle. The second intermediate shaft 9d and the fourth intermediate shaft 9h are formed to have shorter lengths than the first intermediate shaft 9b, the third intermediate shaft 9f, and the fifth intermediate shaft 9j.

[0030] One end of the first intermediate shaft 9b is connected to the power takeoff 7a via a first universal joint 9a. The other end of the first intermediate shaft 9b is connected to one end of the second intermediate shaft 9d via a second universal joint 9c. The other end of the second intermediate shaft 9d is connected to one end of the third intermediate shaft 9f via a third universal joint 9e. The other end of the third intermediate shaft 9f is connected to one end of the fourth intermediate shaft 9h via a fourth universal joint 9g. The other end of the fourth intermediate shaft 9h is connected to one end of the fifth intermediate shaft 9j via a fifth universal joint 9i. The other end of the fifth intermediate shaft 9j is connected to the PTO shaft connection 31 of the fire pump 30 via a sixth universal joint 9k.

[0031] Predetermined intermediate shaft portions among the plurality of intermediate shaft portions are rotatably supported by bearing portions 12. The bearing portions 12 are attached to the upper side of bearing support members 13, both ends of which are supported by the left and right subframes 8, 8. Specifically, the second intermediate shaft portion 9d is rotatably supported by the first bearing portion 12a. The fourth intermediate shaft portion 9h is rotatably supported by the second bearing portion 12b. The first bearing portion 12a is attached to the upper side of a first bearing support member 13a, which is provided between the clutch / transmission unit 7 and the axle of the rear wheels 1b, 1b. The second bearing portion 12b is attached to the upper side of a second bearing support member 13b, which is located rearward of the axle of the rear wheels 1b, 1b. The height positions of the first bearing portion 12a and the second bearing portion 12b are located between the upper and lower ends of the subframes 8, 8, which extend horizontally in the vehicle longitudinal direction.

[0032] When the disaster prevention vehicle 1 is viewed from above, the PTO shaft 9 is disposed at an incline with respect to the vehicle's longitudinal direction. Specifically, the first universal joint 9a at the front end of the PTO shaft 9 is disposed at the center of the vehicle's transverse direction. The sixth universal joint 9k at the rear end of the PTO shaft 9 is disposed at a position offset to the left of the vehicle from the center of the vehicle's transverse direction. When the disaster prevention vehicle 1 is viewed from above, the PTO shaft 9 is disposed in a substantially straight line from the first universal joint 9a to the sixth universal joint 9k. The positions of the first bearing 12a and the second bearing 12b in the transverse direction of the vehicle are set accordingly. Therefore, the first bearing 12a is disposed slightly offset to the left of the vehicle from the center of the vehicle's transverse direction. The second bearing 12b is disposed further offset to the left of the first bearing 12a. The PTO shaft connection portion 31 of the fire pump 30 is disposed further offset to the left of the vehicle from the second bearing 12b. That is, the rear end of the PTO shaft 9 is connected to a PTO shaft connection portion 31 of a fire pump 30 that is offset to the left side of the vehicle with respect to the center of the vehicle in the left-right direction.

[0033] The winch device 20 and the connecting unit 11 are disposed between the second bearing support member 13b and the pump support frame 41 in the front-rear direction of the vehicle. As shown in FIGS. 3 to 5, the fifth intermediate shaft portion 9j of the PTO shaft 9 is configured to pass between the two downward extension members 11b. A wire storage portion 22 and a wire guide portion 23 are disposed below the fifth intermediate shaft portion 9j. Furthermore, left and right connecting members 11a are disposed above the fifth intermediate shaft portion 9j. By configuring the fifth intermediate shaft portion 9j to pass between the two downward extension members 11b, 11b, it is not necessary to route the fifth intermediate shaft portion 9j around the connecting unit 11 in any direction, up, down, left, or right.

[0034] The wire 25 of the winch device 20 is configured to extend forward from a wire supply port 21a that is offset to the right side of the vehicle with respect to the center of the vehicle in the left-right direction. The wire 25 is guided using a pulley unit 15 so as not to overlap with the PTO shaft 9 in a plan view, and is configured to be drawn out of the vehicle from an external outlet 24 provided at the front of the vehicle. The pulley unit 15 is attached above the chassis frame 5 on the right side of the vehicle, at the front-to-rear position of the vehicle where the front cabin 2 is provided. The height position of the wire 25 from the wire supply port 21a of the winch device 20 to the external outlet 24 is approximately within the height position of the subframe 8 that extends horizontally in the front-to-rear direction of the vehicle.

[0035] FIG. 7 is a plan view of essential parts of a disaster prevention vehicle 10 according to a second embodiment of the present invention. FIG. 8 is a side view of essential parts of a disaster prevention vehicle 10 according to the second embodiment of the present invention. In FIGS. 7 and 8, parts with the same configuration as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and their description will be omitted. A major difference between the second embodiment and the first embodiment is the layout of the components of the winch device 200. The winch device 200 of the second embodiment includes a main body 21, a wire storage unit 22, and a wire guide unit 23 with the same structures as those in the first embodiment. However, the positional relationship between the main body 21 and the wire storage unit 22 in the left-right direction of the vehicle is reversed compared to the first embodiment. That is, the main body 21 is disposed on the left side of the vehicle, and the wire storage unit 22 is disposed on the right side of the vehicle. Due to this positional relationship between the main body 21 and the wire storage unit 22, the winch device 200 is attached to subframes 8, 8 via a connecting unit 111 that is different from the connecting unit 11 of the first embodiment.

[0036] The connecting unit 111 has a positional relationship in the left-right direction of the vehicle that is opposite to that of the connecting unit 11 of the first embodiment. The connecting unit 111 has left and right connecting members 111a that connect the left and right subframes 8, 8 together, and downward extension members 111b that extend downward from the left and right connecting members 111a and have components of the winch device 200 attached to their lower ends. Two downward extension members 111b are provided at a predetermined interval in the longitudinal direction of the left and right connecting members 111a. The two downward extension members 111b, 111b are attached to the left and right connecting members 111a offset to the right side of the vehicle with respect to the center of the vehicle in the left-right direction. The wire storage section 22 is attached to the lower ends of the two downward extension members 111b, 111b.

[0037] In the second embodiment, the mounting position of the fire pump 30 is also different from that of the first embodiment. In the first embodiment, the fire pump 30 is mounted at a position that extends further to the left side of the vehicle than the left subframe 8 of the pair of left and right subframes 8, 8, and an additional subframe 42 is provided for this mounting. However, the second embodiment does not have the additional subframe 42 as in the first embodiment. The fire pump 30 of the second embodiment is configured to be housed between the pair of left and right subframes 8, 8. A pump support frame 141 is mounted so as to cross in the left-right direction from the subframe 8 on the right side of the vehicle to the subframe 8 on the left side of the vehicle. Although not shown, the fire pump 30 is mounted to the pump support frame 141 so as to hang down from the pump support frame 141.

[0038] In the second embodiment, the PTO shaft connection portion 31 of the fire pump 30 is located at a position offset to the right of the vehicle with respect to the center in the vehicle's transverse direction. The front end of the PTO shaft 9 is connected to the power takeoff 7a of the clutch / transmission unit 7, which is located near the center in the vehicle's transverse direction, and the rear end of the PTO shaft 9 is connected to the PTO shaft connection portion 31 of the fire pump 30, which is offset to the right of the vehicle with respect to the center in the vehicle's transverse direction. Accordingly, the positions of the first bearing portion 112a, which rotatably supports the second intermediate shaft portion 9d of the PTO shaft 9, and the second bearing portion 112b, which rotatably supports the fourth intermediate shaft portion 9h, are set. In the second embodiment, as in the first embodiment, the fifth intermediate shaft portion 9j of the PTO shaft 9 is configured to pass between the two downward extension members 111b, 111b.

[0039] FIG. 9 is a view taken along the arrow AA in FIG. 8. FIG. 11 is a view taken along the arrow CC in FIG. 8. As shown in FIGS. 7 to 9, the first bearing portion 112a is attached to the upper side of a first bearing support member 113a, both ends of which are supported by the left and right sub-frames 8, 8. As shown in FIG. 11, the second bearing portion 112b is attached to the upper side of a second bearing support member 113b, both ends of which are supported by the left and right sub-frames 8. The first bearing portion 112a is located slightly offset to the right of the vehicle with respect to the center of the vehicle in the left-right direction. The second bearing portion 112b is located further offset to the right of the vehicle than the first bearing portion 112a. The PTO shaft connection portion 31 of the fire pump 30 is located slightly offset to the right of the vehicle from the second bearing portion 112b.

[0040] In the second embodiment, the wire 25 of the winch device 200 is arranged to extend from the wire supply port 21a toward the front of the vehicle toward the exterior outlet 24 provided in the front of the vehicle, and is configured to pass below the first bearing support member 113a and the second bearing support member 113b. Therefore, the first bearing support member 113a and the second bearing support member 113b in the second embodiment are attached at a position slightly above the lower ends of the subframes 8, 8, and the upper ends of the first bearing portion 112a and the second bearing portion 112b protrude above the upper ends of the subframes 8, 8. The height position of the first bearing support member 113a relative to the subframes 8, 8 is located higher than the second bearing support member 113b.

[0041] A first notch 113c is provided on the underside of the first bearing support member 113a, through which the wire 25 of the winch device 200 is passed. Similarly, a second notch 113d is provided on the underside of the second bearing support member 113b, through which the wire 25 of the winch device 200 is passed. In the second embodiment, the wire 25 of the winch device 200 extends toward the front of the vehicle from the wire supply port 21a, which is offset slightly to the left of the vehicle from the center of the vehicle in the left-right direction, and is configured to be guided by two pulley units 1115 and pulled out to the outside of the vehicle.

[0042] Figure 10 is a view taken along the arrow BB in Figure 8. As shown in Figures 7, 8, and 10, a first pulley portion 115a is disposed between the first bearing support member 113a and the second bearing support member 113b in the front-to-rear direction of the vehicle. The first pulley portion 115a is attached to the upper side of a pulley support member 14, both ends of which are supported by the left and right sub-frames 8, 8. The first pulley portion 115a guides the wire 25 at a position below the third intermediate shaft portion 9f of the PTO shaft 9.

[0043] The second pulley portion 115b is attached above the chassis frame 5 on the right side of the vehicle, further forward of the first bearing support member 113a.

[0044] In the second embodiment, with the above configuration, when the disaster prevention vehicle 10 is viewed from above, the PTO shaft 9 and the wire 25 intersect at the position of the third intermediate shaft portion 9f of the PTO shaft 9. However, the height of the PTO shaft 9 is positioned by the first bearing portion 112a and the second bearing portion 112b, and the height of the wire 25 is positioned by the first pulley portion 115a and the second pulley portion 115b, so that the PTO shaft 9 and the wire 25 are configured to be stably maintained at different height positions.

[0045] As described above, the disaster prevention vehicle 1 (10) according to the first and second embodiments comprises a pair of left and right sub-frames 8,8 mounted on a pair of left and right chassis frames 5,5, a storage shed 4 for storing equipment mounted on the sub-frames 8,8, a fire pump 30 connected to a PTO shaft 9 that extracts power from the running engine 6 at the front of the vehicle and driven by the running engine 6, and a winch device 20 (200) that feeds out and reels in the wire 25, and the fire pump 30 and the winch device 20 (200) are attached to the sub-frames 8,8 so as to be positioned rearward of the rear wheels 1b,1b and below the bottom wall of the storage shed 4.

[0046] According to the above configuration, a large number of pieces of equipment necessary for firefighting and rescue activities can be stored in the area above the subframes 8, 8. Furthermore, the winch device 20 (200) and the fire pump 30 are provided behind the rear wheels 1b, 1b so as not to interfere with the drive-related equipment of the chassis, such as the drive shaft, rear suspension device, and rear axle housing. Furthermore, the winch device 20 (200) and the fire pump 30 are located below the bottom wall of the storage shed 4, so they do not interfere with the equipment used for firefighting and rescue activities. Therefore, a disaster prevention vehicle can be provided that is equipped with both the winch device 20 (200) for rescue activities and the fire pump 30 for firefighting activities, and is capable of storing a large number of pieces of equipment necessary for firefighting and rescue activities.

[0047] In the first and second embodiments, the winch device 20 (200) is attached to the subframes 8, 8 via a connecting unit 11 (111). The connecting unit 11 (111) includes a left-right connecting member 11a (111a) that connects the pair of left and right subframes 8, 8, and a downward extension member 11b (111b) that extends downward from the left-right connecting member 11a (111a) and has a lower end to which components of the winch device 20 (200) are attached. A plurality of downward extension members 11b (111b) are provided at predetermined intervals along the longitudinal direction of the left-right connecting member 11a (111a). The fire pump 30 has a water intake 32 and a water discharge port 33 that open toward the rear of the vehicle and is located further rearward of the winch device 20 (200). The PTO shaft 9 is configured to pass between the plurality of downward extension members 11b, 11b (111b, 111b).

[0048] According to the above configuration, the fire pump 30 has an intake port 32 and an outlet port 33 that open toward the rear of the vehicle, allowing it to take in and discharge water from the rear of the vehicle. Furthermore, the piping from the fire pump 30 can be configured shorter and simpler than when the fire pump 30 is located in the center of the vehicle, thereby increasing the space available for storing equipment. Furthermore, the PTO shaft 9, which connects the power takeoff 7a of the traveling engine 6 at the front of the vehicle to the fire pump 30 located behind the rear wheels 1b, 1b, is configured to pass between the multiple downward extension members 11b, 11b (111b, 111b) to which components of the winch device 20 (200) are attached. This shortens the overall length of the PTO shaft 9, thereby saving space, compared to when the PTO shaft 9 is laid out to avoid the winch device 20 (200) and the connecting unit 11 (111).

[0049] In the first and second embodiments, the PTO shaft 9 has six universal joints (first universal joint 9a, second universal joint 9c, third universal joint 9e, fourth universal joint 9g, fifth universal joint 9i, and sixth universal joint 9k) and five intermediate shafts (first intermediate shaft 9b, second intermediate shaft 9d, third intermediate shaft 9f, fourth intermediate shaft 9h, and fifth intermediate shaft 9j) connecting adjacent universal joints. Of the multiple intermediate shafts, certain intermediate shafts (second intermediate shaft 9d and fourth intermediate shaft 9h) are rotatably supported by bearings 12 (bearings 112). The bearings 12 (bearings 112) are attached to bearing support members 13 (113), both ends of which are supported by the left and right subframes 8.

[0050] According to the above configuration, the PTO shaft 9, which connects the power takeoff 7a of the traveling engine 6 at the front of the vehicle with the fire pump 30 located behind the rear wheels 1b, 1b, is long and extends from the front to the rear of the vehicle, but the direction of extension of each intermediate shaft section can be adjusted using the universal joint section to transmit the power of the traveling engine 6 to the fire pump 30. In addition, a predetermined intermediate shaft section is rotatably supported by a bearing section 12 (bearing section 112), and the bearing section 12 (bearing section 112) is supported on the sub-frames 8, 8 via bearing support members 13 (113), so that the PTO shaft 9 can be reliably maintained at the height position of the sub-frames 8, 8. This increases the degree of freedom in layout of the PTO shaft 9 while ensuring storage space for accessories stored above the sub-frames 8, 8.

[0051] Furthermore, in the second embodiment, bearing portion 112 is attached to the upper side of bearing support member 113, and wire 25 of winch device 200 is configured to extend forward of the vehicle toward exterior outlet 24 provided at the front of the vehicle and pass below bearing support member 113. According to this configuration, PTO shaft 9 for driving fire pump 30 is provided above bearing support member 113, while wire 25 of winch device 200 is provided below bearing support member 113, so that bearing support member 113 can be used as a restricting member for preventing PTO shaft 9 and wire 25 from coming into contact with each other.

[0052] Furthermore, because the wire 25 is positioned lower than the PTO shaft 9, even if the wire 25 becomes loose and hangs down due to gravity, it will not interfere with the PTO shaft 9. This prevents problems such as the wire 25 becoming entangled with the rotating PTO shaft 9 when the wire 25 of the winch device 200 becomes loose due to equipment trouble, even if the height positions of the PTO shaft 9 and the wire 25 are not significantly different. Therefore, by using a layout in which the height positions of the PTO shaft 9 and the wire 25 are not significantly different, a disaster prevention vehicle can be made that can prevent problems while ensuring storage space for equipment stored above the subframe 8.

[0053] In the first embodiment, the front end of the PTO shaft 9 is connected to the power takeoff port 7a of the clutch / transmission unit 7 connected to the rear of the traveling engine 6, and the rear end of the PTO shaft 9 is connected to the PTO shaft connection unit 31 of the fire pump 30 offset to the left of the vehicle with respect to the center of the vehicle in the left-right direction. The wire 25 is configured to extend toward the front of the vehicle from the wire supply port 21a of the winch device 20 offset to the right of the vehicle with respect to the center of the vehicle in the left-right direction. The wire 25 is configured to be guided by the pulley unit 15 and pulled out to the outside of the vehicle so as not to overlap with the PTO shaft 9 in a plan view.

[0054] According to the above configuration, the PTO shaft 9 and the wire 25 can be positioned at horizontally spaced apart positions, so that the PTO shaft 9 and the wire 25 do not need to be positioned at vertically separate positions, and the dimension between the bottom wall and the ceiling wall of the storage shed 4 can be increased accordingly. This makes it possible to ensure storage space for accessories stored above the subframes 8, 8. Furthermore, because the PTO shaft 9 and the wire 25 are positioned so as not to overlap vertically, it is possible to prevent problems such as the wire 25 becoming tangled around the rotating PTO shaft 9 when the wire 25 of the winch device 20 becomes loose due to equipment trouble.

[0055] The embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. The technical scope of the present invention is not to be interpreted solely by the above-described embodiments, but is defined by the claims. The technical scope of the present invention also includes all modifications within the scope and meaning equivalent to the claims. [Explanation of symbols]

[0056] 1,10 Disaster prevention vehicles 1b rear wheel 4 Storage 5 Chassis frame 6. Driving engine 7 Clutch and transmission section 7a Power outlet 8 Subframe 9 PTO shaft 9a First universal joint part 9b 1st intermediate shaft part 9c Second universal joint part 9d Second intermediate shaft 9e Third universal joint 9f 3rd intermediate shaft part 9g 4th universal joint part 9h 4th intermediate shaft part 9i 5th universal joint 9j 5th intermediate shaft section 9k 6th universal joint part 11,111 connected units 11a, 111a Left and right connecting members 11b,111b Downward extension member 12,112 Bearing section 13,113 Bearing support member 15,115 Pulley part 20,200 winch equipment 25 wire 30 Fire Pump 32 Water intake 33 Outlet

Claims

1. The vehicle comprises a pair of left and right subframes provided on a pair of left and right chassis frames, a storage shed for storing equipment provided on the subframes, a fire pump connected to a PTO shaft that extracts power from a traveling engine at the front of the vehicle and is driven by the traveling engine, and a winch device that feeds out and winds up a wire, A disaster prevention vehicle characterized in that the fire pump and the winch device are attached to the subframe so as to be located rearward of the rear wheels of the vehicle and below the bottom wall of the storage bay.

2. the winch device is attached to the subframe via a connecting unit; The connection unit includes left and right connecting members that connect the pair of left and right subframes together, and a downward extension member that extends downward from the left and right connecting members and has a lower end to which a component of the winch device is attached, The downward extension members are provided in plurality at predetermined intervals in the longitudinal direction of the left and right connecting members, the fire pump has a water inlet and / or a water outlet opening toward the rear of the vehicle and is disposed rearward of the vehicle relative to the winch device; 2. The disaster prevention vehicle according to claim 1, wherein the PTO shaft is configured to pass between a plurality of the downward extension members.

3. The PTO shaft has three or more universal joint portions and two or more intermediate shaft portions connecting adjacent universal joint portions, 3. The disaster prevention vehicle according to claim 1, wherein a predetermined one of the plurality of intermediate shaft portions is rotatably supported by a bearing portion, and the bearing portion is attached to a bearing support member whose both ends are supported by the left and right subframes.

4. the bearing portion is attached to an upper side of the bearing support member, The disaster prevention vehicle according to claim 3, wherein the wire of the winch device is configured to extend forward of the vehicle toward an external withdrawal opening provided at the front of the vehicle and to pass below the bearing support member.

5. The front end of the PTO shaft is connected to a power takeoff port of a clutch / transmission unit connected to the rear of the driving engine, a rear end of the PTO shaft is connected to a PTO shaft connection portion of the fire pump that is offset to one side with respect to the center of the vehicle in the left-right direction; The wire is configured to extend forward of the vehicle from a wire supply port of the winch device that is offset to the other side with respect to the center of the vehicle in the left-right direction, 2. The disaster prevention vehicle according to claim 1, wherein the wire is guided by a pulley portion and pulled out to the outside of the vehicle so as not to overlap the PTO shaft in a plan view.

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