Refuse collection vehicle

Abstract

The present invention provides a refuse collection vehicle with a configuration that can suppress the mounting height of equipment and thus prevent an increase in vehicle height. [Solution] The garbage collection vehicle 1 comprises a vehicle body 2 having a chassis frame 7, a garbage collection box 11 for storing garbage, and 12 garbage input boxes 12 connected to the rear end of the garbage collection box 11 and equipped with a garbage input opening. The garbage collection box 11 is provided with a main girder 8 (reinforcement frame) on its bottom surface and fastened to the chassis frame 7. The main girder 8 has an extension portion 20 that extends forward of the garbage collection box 11, and support stays 21 for supporting the outfitting 5 are provided on the side surface 20a of the extension portion 20.

Description

[Technical Field]

[0001] The present invention relates to a garbage collection vehicle. [Background Art]

[0002] A garbage collection vehicle is equipped with a garbage collection device that includes a garbage storage box and a garbage input box behind the driver's cab on the vehicle body, and has a structure in which the input garbage is conveyed and stored into the garbage storage box by a garbage loading device built in the garbage input box. In addition, as a mounting structure for the garbage collection device, a main girder is provided on the bottom surface of the garbage storage box, and the garbage storage box is mounted on the chassis frame of the vehicle body via the main girder.

[0003] The above garbage loading device includes a hydraulic circuit that supplies hydraulic oil to a hydraulic cylinder or the like as an actuator, and this hydraulic circuit includes a hydraulic pump driven by power extracted from the traveling engine by a power take-off (PTO). In addition, the garbage collection vehicle is also equipped with an oil tank for storing oil supplied by such a hydraulic pump, and other outfitting components such as a spare tire. [Prior Art Documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Laid-Open No. 2019-55840 [Summary of the Invention] [Problem to be Solved by the Invention]

[0005] By the way, the above outfitting components include the oil tank for the hydraulic circuit, the spare tire and the like. When attempting to install these outfitting components in the space below the chassis frame, there has been a problem that installation space restrictions are strict, for example, they need to fit within the height between the chassis frame and the road surface. [Means for Solving the Problem]

[0006] As a means of solving the above problems, the refuse collection vehicle according to the present invention comprises a vehicle body having a chassis frame, a refuse storage box for storing refuse, a refuse input box connected to the rear end of the refuse storage box and having a refuse input opening, and a reinforcing frame provided on the lower side of the refuse storage box and fastened onto the chassis frame, wherein the reinforcing frame has an extension portion extending forward of the refuse storage box, and support stays for supporting equipment are provided on the side of the extension portion.

[0007] Furthermore, it is preferable that the support stay is provided with a horizontal surface for placing the fittings, and that this horizontal surface is configured to be flush with the upper surface of the extension of the reinforcing frame.

[0008] Furthermore, the reinforcing frame may also be a main girder integrally provided on the bottom surface of the waste container. Moreover, the reinforcing frame may also be a subframe fixed on the chassis frame, and the waste container mounted on the subframe may also be tiltable relative to the horizontal. [Effects of the Invention]

[0009] According to the refuse collection vehicle of the present invention, it is possible to secure space for mounting equipment in the space in front of the refuse collection box, while simultaneously reinforcing the strength of the chassis frame corresponding to the space. This effect solves the problem that if heavy equipment is mounted directly on the chassis frame, the strength of the chassis frame may become insufficient when the vehicle is in motion.

[0010] Furthermore, by providing the support stays on the sides of the extension, the equipment can be supported and fixed without having to sandwich the support stays between the top surface of the extension and the bottom surface of the equipment, thus preventing the support position of the equipment from becoming too high. This helps to suppress an increase in the center of gravity of the entire garbage collection vehicle, and ensures that the stability of the vehicle during operation is not compromised.

[0011] Furthermore, by making the horizontal surface of the support stay flush with the upper surface of the extended portion of the reinforcing frame, it becomes possible to mount the equipment in a stable state. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1(a) is a front view and Figure 1(b) is a top view, showing a refuse collection vehicle according to Embodiment 1 of the present invention. [Figure 2] This diagram schematically shows the rear configuration of the refuse collection vehicle, and is a front view of the case where the refuse discharge structure of the rear refuse collection box is of the discharge plate type. [Figure 3] This is a front view showing the specific rear configuration of the garbage collection vehicle. [Figure 4] This is a magnified perspective view showing the mounting structure of the outfitting equipment in the rear configuration. [Figure 5] Similarly, the mounting structure of the same equipment is shown in enlarged view, with Figure 5(a) being a front view, Figure 5(b) being a front side view, and Figure 5(c) being a top view. [Figure 6] This diagram schematically shows the rear configuration of a refuse collection vehicle according to Embodiment 2 of the present invention, and is a front view when the refuse discharge structure of the rear refuse storage box is of the dump type. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described in detail below with reference to the drawings. Note that the same reference numerals throughout the drawings indicate the same component or element.

[0014] [Embodiment 1] Figures 1 to 5 show the refuse collection vehicle according to the present invention. As shown in Figure 1, the refuse collection vehicle 1 has a refuse collection device 3 mounted on a vehicle body 2. Specifically, a driver's cab 4 is provided at the front of the vehicle body 2, and the refuse collection device 3 is mounted behind the driver's cab 4. A main girder 8 is integrally provided on the bottom surface of the refuse collection box 11 that constitutes the refuse collection device 3.

[0015] Further, an outfitting component 5 is mounted in the installation space P formed between the refuse collection device 3 and the driver's cab 4, and as shown in FIG. 1(b), the outfitting component 5 is arranged at a position offset in the vehicle width direction (left-right lateral direction) of the vehicle body 2. In the present embodiment, the outfitting component 5 includes, for example, an oil tank for a hydraulic circuit of the refuse collection device 3 described later, a spare tire for the traveling wheels 15, and the like.

[0016] As shown in FIG. 2, the vehicle body 2 has a chassis frame 7 extending in the vehicle front-rear direction as a main part, and the refuse collection device 3 is mounted on the chassis frame 7 via a main girder 8 serving as a reinforcing frame. The main girder 8 is fastened to the chassis frame 7 to reinforce the strength of the chassis frame 7.

[0017] The chassis frame 7 supports the entire refuse collection device 3 from below, forms the framework of the refuse collection vehicle 1, and is a member that supports the entire weight of the refuse collection device 3.

[0018] The chassis frame 7 is composed of a pair of left and right frame members 9, 9 extending parallel in the vehicle front-rear direction, and a plurality of cross members (not shown) connecting the pair of frame members at a plurality of positions in the vehicle front-rear direction in the vehicle width direction. Although not specifically illustrated, the pair of left and right frame members 9, 9 are formed of, for example, channel steel having a groove shape facing inward in the vehicle width direction.

[0019] Specifically, as shown in FIG. 1 and FIG. 2, the refuse collection device 3 is mainly composed of a cargo box 10 that exerts a function of collecting refuse and the like, and the main girder 8 that is a reinforcing frame.

[0020] The cargo box 10 is composed of a refuse storage box 11 for storing refuse and a refuse input box 12 for inputting refuse.

[0021] The refuse storage box 11 is a box body having a refuse discharge port (not shown) opened on the rear end side, and the main girder 8 serving as a reinforcing frame is integrally fixed to the lower side thereof, that is, the bottom surface thereof. Although not specifically shown in the diagram, the inside of this waste collection box 11 is equipped with a hydraulic waste discharge device for discharging the collected waste. The waste discharge operation of this waste discharge device is a discharge plate type, in which a discharge plate pushes the waste toward the waste discharge port.

[0022] The refuse input box 12 is connected to the refuse discharge port of the refuse storage box 11 and integrally attached to the rear end of the refuse storage box 11. The refuse input box 12 is structured to be able to be opened upward relative to the refuse storage box 11, and although not specifically shown in the diagram, it is equipped with a hydraulic refuse loading device inside that pushes the refuse introduced from the refuse input port into the refuse storage box 11.

[0023] The refuse discharge device and refuse loading device, although not specifically shown in the figures, are equipped with a hydraulic circuit that supplies hydraulic fluid from an oil tank to hydraulic cylinders and the like as actuators. This hydraulic circuit is equipped with a hydraulic pump that is driven by power taken from the travel engine via a power take-off (PTO). The travel engine uses its driving force to rotate the rear left and right wheels 15, 15 via the transmission, thereby moving the refuse collection vehicle 1.

[0024] The refuse collection box 11 is directly mounted and fixed to the chassis frame 7 of the vehicle body 2 via the main girder 8, thereby mounting the refuse collection device 3 on the chassis frame 7. In this embodiment, although not specifically shown, U-bolts or the like are preferably used to fasten the main girder 8 on the chassis frame 7. This eliminates the need to form bolt holes in the chassis frame 7, thus preventing a reduction in the strength of the chassis frame 7.

[0025] The main girder 8, like the chassis frame 7, consists of a pair of left and right frame members 14, 14 extending parallel to the longitudinal direction of the vehicle. Although not shown in the figures, it is, for example, made of channel steel that forms a groove shape toward the inside in the width direction of the vehicle. A plate-shaped spacer may be interposed between the main girder 8 and the chassis frame 7.

[0026] The mounting structure of the equipment 5, which is installed between the rubble collection device 3 and the driver's cab 4, is specifically shown in Figures 4 and 5.

[0027] In other words, the main girder 8, which is a reinforcing frame, has an extension portion 20 that extends forward from the front end of the waste container 11, and this extension portion 20 is formed by the front ends of the frame members 14, 14 of the main girder 8 extending forward. The space above the extension portion 20 forms an installation space P for installing the outfitting equipment 5. In this embodiment, the outfitting equipment 5 can be fixedly supported by a support stay 21 provided on one of the extension portions 20, 20.

[0028] As shown in Figure 4, a support stay 21 is attached and fixed to the outer surface 20a of the right-hand extension 20 of the main girder 8 toward the rear of the vehicle body.

[0029] As shown in Figure 4, the equipment 5 may be stably held from both sides by installing a support stay 22 to the right of the support stay 21. The support stay 22 is formed in an L-shape consisting of a horizontal part 22a and a vertical part 21b. The upper end of the vertical part 21b of the support stay 22 is fixed to the lower end of the front part of the waste container 11.

[0030] Although not specifically shown in the illustration, the means for fixing the support stays 21 and 22 to the extension 20 and the waste container 11 is preferably welding or fixing bolts and nuts.

[0031] The support stays 21 and 22 are provided with horizontal surfaces for placing the outfitting equipment 5.

[0032] Since the support stay 21 is fixed to the side surface 20a of the extension 20, the equipment 5 can be supported and fixed without having to sandwich the support stay 21 between the upper surface of the extension 20 and the bottom surface of the equipment 5.

[0033] Furthermore, even when the equipment 5 is installed on the support stay 21, at least the entire height of the support stay 21 does not contribute to raising the equipment 5, thus preventing the center of gravity of the garbage collection vehicle 1 from rising.

[0034] Furthermore, according to this embodiment, the upper surfaces 25 and 26 of the horizontal portions 21a and 22a of the support stays 21 and 22 are horizontal planes, and these horizontal planes 25 and 26 are configured to be flush with the upper surface 20b of the extension portion 20.

[0035] By making the horizontal surfaces 25 and 26 flush with the upper surface 20b of the extension 20, the mounting surface of the outfitting 5 can be lowered to the upper surface of the extension 20. This allows the chassis frame 7 to be reinforced by the extension 20 without increasing the mounting height of the outfitting 5 relative to the upper surface of the extension 20.

[0036] Furthermore, as shown in Figures 4 and 5, an extension frame 40 is coaxially and detachably connected and fixed to the tip of the extension portion 20 of the main girder 8. This structure allows for selective connection and use when the outfitting equipment 5 is large and requires a mounting section longer than the extension portion 20. When the extension portion 20 is provided, the support stays 21 can be attached to the side of the extension frame 40.

[0037] The extension frame 40 is designed to be detachably connected and fixed to the extension section 20 by appropriate connecting means, with tightening bolts and nuts used as the connecting means (not shown). Therefore, when not in use, the extension frame 40 can be removed from the extension section 20 and stored separately.

[0038] Here, it is preferable that the reinforcing frame 8 is fastened to the chassis frame 7 such that a load is applied perpendicularly to the upper surface of the chassis frame 7. That is, in the installation space, if, for example, a frame member that holds the outfitting is connected to, for example, a load cell installed on the chassis frame, then the frame member cannot be said to be fastened to the chassis frame and does not contribute to reinforcing the strength of the chassis frame. If outfitting is installed in the installation space P without reinforcing the strength of the chassis frame, the weight of the outfitting may damage the chassis frame when the vehicle is in motion. The reinforcing frame 8 includes the main girder 8, the extension 20, and the extension frame 40.

[0039] Furthermore, it is not necessary for all of the lower surfaces of the reinforcing frame 8 to be in direct contact with the upper surface of the chassis frame 7. For example, it is preferable to form the lower surface 20u of the tip of the extension portion 20 to be inclined upward so as to float above the upper surface of the chassis frame 7. By forming the lower surface 20u to float above the upper surface of the chassis frame 7, it is possible to avoid stress concentration at the tip of the extension portion 20 that constitutes the tip of the reinforcing frame when turning during the operation of the garbage collection vehicle 1, thereby preventing deformation.

[0040] In the refuse collection vehicle 1 of this embodiment, the main girder 8, which serves as a reinforcing frame, is provided with an extension 20 that extends forward of the refuse collection box 11, and a support stay 21 for mounting and supporting the outfitting equipment 5 is provided on the side surface 20a of this extension 20. This makes it possible to reinforce the strength of the chassis frame 7 with the extension 20 while preventing the support position of the outfitting equipment 5 from becoming too high.

[0041] This prevents the center of gravity of the garbage collection vehicle 1 from rising, thus ensuring that the stability of the garbage collection vehicle 1 during operation is not compromised.

[0042] [Embodiment 2] This embodiment is shown in Figure 6 and is a refuse collection vehicle 1 equipped with a dump-type refuse discharge mechanism for the refuse collection box 11, rather than a discharge plate type as in Embodiment 1.

[0043] In other words, in the refuse collection vehicle 1 of this embodiment, the hydraulic drive of the refuse storage box 11 is used to perform the refuse compression and collection operation in the refuse input box 12 (not specifically shown in the figures), and the dump operation by tilting the refuse storage box 11 (see Figure 6(b)) to discharge the collected refuse.

[0044] In this case, the waste container 11 is equipped with a hydraulic circuit that hydraulically drives multiple hydraulic cylinders, which act as actuators for various operations. This hydraulic circuit includes an oil tank and a hydraulic pump operated by a power take-off (PTO).

[0045] In this embodiment, a subframe 30 is fastened to the chassis frame 7 as a reinforcing frame in order to reinforce the chassis frame 7 that constitutes the vehicle body 2.

[0046] Specifically, as shown in Figure 6, the vehicle body 2 is equipped with a chassis frame 7 extending in the longitudinal direction of the vehicle, and a reinforcing frame, a subframe 30, is fixed on this chassis frame 7. Furthermore, the main girder 8 of the refuse container 11 is installed on the subframe 30. The main girder 8 is integrally formed with the bottom surface of the refuse container 11. During the discharge operation, the refuse container 11 tilts together with the main girder 8 relative to the subframe 30.

[0047] Furthermore, the oil tank is mounted as an outfitting component 5 in the installation space P formed between the refuse collection box 11 of the refuse collection device 3 and the driver's cab 4, similar to Embodiment 1.

[0048] The subframe 30, like the chassis frame 7, consists of a pair of left and right frame members 31, 31 extending parallel to the vehicle's longitudinal direction. Although not shown in the figures, it is, for example, made of channel steel that forms a groove shape inward in the vehicle width direction. A plate-shaped spacer may be interposed between the subframe 30 and the chassis frame 7.

[0049] In this embodiment, the mounting structure for the outfitting component 5 is provided on a subframe 30, which is a reinforcing frame.

[0050] In other words, the subframe 30 includes an extension portion 32 that extends forward from the front end of the waste container 11, and this extension portion 32 is formed by the front ends of the frame members 31, 31 of the subframe 30 extending forward. The space above the extension portion 32 forms an installation space P for installing the outfitting equipment 5. In this embodiment, the outfitting equipment 5 is mounted and supported on one of the extension portions 32, 32.

[0051] In Figure 6, a support stay 21 is attached and fixed to the side surface 32a of the right-hand extension 32 of the subframe 30 toward the rear of the vehicle body, similar to Embodiment 1. Furthermore, a support stay 22 is provided to the right and outward of the support stay 21, similar to Embodiment 1.

[0052] Here, it is preferable that the subframe 30 and the extension 32 are fastened to the chassis frame 7 such that a load is applied perpendicularly to the upper surface of the chassis frame 7. That is, in the installation space, if, for example, a frame member that holds the outfitting is connected to, for example, a load cell installed on the chassis frame, then the frame member cannot be said to be fastened to the chassis frame and does not contribute to reinforcing the strength of the chassis frame. If outfitting is installed in the installation space P without reinforcing the strength of the chassis frame, the weight of the outfitting may damage the chassis frame when the vehicle is in motion.

[0053] The refuse collection vehicle 1 in this embodiment provides the same unique effects as the refuse collection vehicle 1 of Embodiment 1 described above.

[0054] In other words, the subframe 30, which serves as a reinforcing frame, is equipped with an extension 32 that extends forward of the waste container 11, and a support stay 21 for mounting and supporting the outfitting 5 is provided on the side surface 32a of this extension 32. This makes it possible to reinforce the strength of the chassis frame 7 with the extension 32 while preventing the support position of the outfitting 5 from becoming too high.

[0055] This prevents the center of gravity of the garbage collection vehicle 1 from rising, thus ensuring that the stability of the garbage collection vehicle 1 during operation is not compromised.

[0056] Furthermore, according to this embodiment, the upper surfaces 25 and 26 of the horizontal portions 21a and 22a of the support stays 21 and 22 are horizontal planes, and these horizontal planes 25 and 26 are configured to be flush with the upper surface 32b of the extension portion 20.

[0057] By making the horizontal surfaces 25 and 26 flush with the upper surface 32b of the extension 20, the mounting surface of the outfitting 5 can be lowered to the upper surface of the extension 32. This allows the chassis frame 7 to be reinforced by the extension 20 without increasing the mounting height of the outfitting 5 relative to the upper surface of the extension 32. The other configurations and functions are the same as in Embodiment 1.

[0058] It should be noted that Embodiments 1 and 2 described above merely illustrate preferred embodiments of the present invention, and the present invention is not limited to these embodiments; various design modifications are possible within their scope.

[0059] For example, in embodiments 1 and 2, the outfitting components 5 are directly supported by the reinforcing frame (main girder 8 or subframe 30), but the outfitting components 5 may be housed in a storage container such as an outfitting component storage box, and mounted on the reinforcing frame 8 or subframe 30 via this storage container.

[0060] Furthermore, the horizontal surfaces 25 and 26 of the support stays 21 and 22 may be lower than the upper surfaces 20b and 32b of the extensions 20 and 32 of the reinforcing frame (main girder 8 or subframe 30). [Explanation of Symbols]

[0061] 1. Garbage collection vehicle 2 car bodies 3. Dust collection device 5. Equipment 7 Chassis Frame 8. Main beam (reinforcement frame) 10 packing boxes 11. Refuse container 12 Garbage disposal box 20 Extension of the main girder 20a Side view of the extension 20b Upper surface of the extension 21, 22 Support stays 25, 26 Horizontal surface of support stay 30 Subframes 32 Subframe extension

Claims

1. A vehicle body having a chassis frame, A waste collection box for containing waste, A refuse input box connected to the rear end of the aforementioned refuse collection box and equipped with a refuse input opening, The waste collection box is provided below the reinforcing frame which is fastened to the chassis frame, The reinforcing frame includes an extension that extends forward of the waste collection box, Support stays for supporting the fittings are provided on the side surface of the extension portion. A garbage collection vehicle characterized by the following.

2. The support stay is provided with a horizontal surface for placing the fittings, This horizontal surface is configured to be flush with the upper surface of the extension of the reinforcing frame. The garbage collection vehicle according to feature 1.

3. The reinforcing frame is a main beam integrally provided on the bottom surface of the waste container. A garbage collection vehicle according to claim 1 or 2.

4. The reinforcing frame is a subframe fixed on the chassis frame, The waste container mounted on the subframe is tiltable relative to the horizontal. A garbage collection vehicle according to claim 1 or 2.

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