Refuse disposal bins and refuse collection vehicles

Abstract

The present invention provides a waste collection box that allows for easy opening and closing of the waste collection port while collecting waste over short distances, and that prevents waste from falling out. [Solution] The waste disposal box 20 comprises a box-shaped disposal box body 30 with a waste disposal opening 31 formed therein, a first door 40 that can open and close the waste disposal opening 31, and a second door 50 provided on the inside or outside of the first door 40 and configured to open and close at least a part of the waste disposal opening 31. The second door 50 is lighter in weight than the first door 40.

Description

Technical Field

[0001] The present invention relates to a dust bin and a dust collection vehicle equipped with the same.

Background Art

[0002] A dust collection vehicle having a door provided at a dust inlet has been conventionally known. For example, Patent Document 1 discloses a dust collection vehicle including a dust bin having a dust inlet and a dust storage bin into which the dust introduced into the dust bin is pushed. The dust bin described in Patent Document 1 includes a tailgate that opens and closes by sliding the dust inlet up and down. The tailgate has a base frame made of U-shaped steel and a main surface member made of a metal plate. Although not explicitly stated in Patent Document 1, such a tailgate is heavy and requires force to open and close.

[0003] For example, Patent Document 2 discloses a dust collection vehicle that opens and closes a dust inlet of a dust bin with a curtain-shaped or bellows-shaped scattering prevention cover.

Prior Art Documents

Patent Documents

[0004] [

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] When collecting refuse sequentially, it is often necessary to move the refuse collection vehicle to a refuse collection site near the current one. When moving to such a nearby refuse collection site, it is cumbersome to repeatedly open and close a heavy tailgate, such as the one described in Patent Document 1, which requires considerable force to open and close. However, moving the refuse collection vehicle with the refuse input box door open is undesirable for reasons such as the risk of refuse falling out of the refuse input box and the inability to prevent odors. Therefore, a configuration in which the refuse input opening of the refuse input box can be opened and closed with a simple splash-proof cover, such as the one described in Patent Document 2, is desirable. A simple splash-proof cover like the one described in Patent Document 2 can reduce the effort required to open and close the refuse input opening each time the vehicle is moved. However, with a simple splash-proof cover like the one described in Patent Document 2, there is a risk of refuse falling out of the refuse collection vehicle when it is traveling at normal speed on a road or the like.

[0006] This invention has been made in view of the above points, and its purpose is to propose a refuse input box that allows for easy opening and closing of the refuse input port when collecting refuse while moving over short distances, and that prevents refuse from falling out. Furthermore, it is also to propose a refuse collection vehicle equipped with such a refuse input box. [Means for solving the problem]

[0007] The refuse disposal box disclosed herein comprises a box-shaped disposal box body having a refuse disposal opening, a first door that can open and close the refuse disposal opening, and a second door provided on the inside or outside of the first door and configured to open and close at least a portion of the refuse disposal opening. The second door is lighter in weight than the first door.

[0008] According to the above-mentioned refuse collection box, when collecting refuse while moving over short distances, the refuse collection opening can be opened and closed more easily by opening and closing the second door, which is lighter than the first door. Furthermore, when driving the refuse collection vehicle at normal speed, by at least closing the first door, which is heavier than the second door, the weight of the first door prevents the door from opening due to vibrations during normal driving, thus preventing refuse from falling out of the refuse collection vehicle.

[0009] In one preferred embodiment, the first door is located further out than the second door.

[0010] In this configuration, by positioning the first door further out than the second door, the first door becomes closer to the worker standing behind the waste disposal box. This makes it easier to open and close the heavy first door, reducing the effort required for the operation. Furthermore, the lightweight second door is more susceptible to vibrations during normal speed travel and tends to sway more than the heavier first door. However, because the heavier second door is covered by the outer first door, which is less affected by vibrations during normal speed travel, even if it sways, it will not obstruct the lights around the waste disposal opening, thus maintaining rearward visibility.

[0011] In one preferred embodiment, the first door comprises a door body made of metal that closes the waste inlet when closed.

[0012] According to this configuration, the strength of the metal door body allows for a more secure sealing of the waste inlet. Furthermore, the second door can be protected from external disturbances such as wind, rain, ultraviolet rays from sunlight, and flying debris.

[0013] In one preferred embodiment, the second door is provided with an inner sheet made of a flexible sheet-like material that closes at least a portion of the waste inlet when closed.

[0014] In this configuration, since the inner sheet is flexible, there is less resistance when opening and closing the second door. Therefore, the second door can be opened and closed more smoothly. In addition, since flexible sheet-like materials are generally lightweight, the second door can be made lighter.

[0015] In one preferred embodiment, the waste disposal box further comprises a winding core that winds up the inner sheet when the second door is opened.

[0016] According to this configuration, the inner sheet can be stored in a small space inside the waste collection box by rolling it up.

[0017] In one preferred embodiment, the input box body is provided with a reinforcing cross member stretched inside so as to intersect the opening and closing direction of the inner sheet. The second door is provided with an end member that abuts against the cross member at the end position of the inner sheet's winding and restricts the winding of the inner sheet.

[0018] According to this configuration, the reinforcing cross member can be used to stop the winding of the inner sheet at the end position.

[0019] In one preferred embodiment, the cross member is configured to be detachably attached to the input box body.

[0020] According to this configuration, when replacing the second door, the cross member can be removed to improve work efficiency.

[0021] In one preferred embodiment, the waste disposal box further comprises a leak prevention member provided on the side wall of the waste disposal opening, which overlaps with the edge of the second door when viewed toward the waste disposal opening.

[0022] According to this configuration, it is possible to prevent waste from leaking out from between the edge of the second door and the side wall of the waste inlet.

[0023] According to a preferred embodiment, the input box body includes a storage portion for storing at least a part of the first door in an open state.

[0024] According to such an embodiment, since the first door is stored in the storage portion in the open state, the dust collection vehicle can run with the first door open. If the first door in the open state is not stored in the input box body, problems may easily occur when running the dust collection vehicle, such as the display lights of the dust collection vehicle being hidden by the opened first door.

[0025] According to a preferred embodiment, the second door includes a grip portion that is grasped when opening and closing. The grip portion is located below the lower end of the first door in the open state when the second door is in the open state.

[0026] According to such an embodiment, when closing the second door from the state where the first door and the second door are open, the grip portion can be grasped.

[0027] [ A dust collection vehicle according to a preferred embodiment includes any one of the above-described dust input boxes.

[0028] According to such a dust collection vehicle, the functions and effects that the provided dust input box can achieve can be achieved.

Effect of the Invention

[0029] According to the above dust input box, when collecting dust while sandwiching a short-distance movement, the dust input port can be easily opened and closed, and dust can be prevented from falling.

Brief Description of the Drawings

[0030] [Figure 1] It is a side view of a dust collection vehicle according to an embodiment. [Figure 2] It is a rear view of the dust collection vehicle. [Figure 3] It is a cross-sectional view of the dust input box. [Figure 4]This is a rear view of a garbage truck with the tailgate open and the inner door closed. [Figure 5] This is a rear view of a garbage truck with both the tailgate and interior doors open. [Modes for carrying out the invention]

[0031] [Composition of a garbage collection vehicle] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a side view of a refuse collection vehicle 10 according to one embodiment. Figure 2 is a rear view of the refuse collection vehicle 10. As shown in Figures 1 and 2, the refuse collection vehicle 10 according to this embodiment includes a chassis 11, a refuse container 12 mounted on the chassis 11, and a refuse input box 20 connected to the refuse container 12 from the rear. A driver's cab 14 is provided in front of the refuse container 12.

[0032] Figure 3 is a cross-sectional view of the refuse input box 20. As shown in Figure 3, the refuse input box 20 comprises a box-shaped input box body 30 into which refuse is input, and a loading device 60 that loads the refuse input into the input box body 30 into the refuse storage box 12.

[0033] The main body of the waste collection box 30 has a waste collection opening 31 into which waste is collected (see also Figure 5). The waste collection opening 31 opens to the rear of the main body of the waste collection box 30. The waste collection box 20 includes a tailgate 40 that opens and closes the waste collection opening 31 in the vertical direction, and an inner door 50 that also opens and closes the waste collection opening 31 in the vertical direction. The tailgate 40 is an example of a first door that opens and closes the waste collection opening 31. The inner door 50 is an example of a second door that opens and closes at least a part of the waste collection opening 31. The waste collection box 20 according to this embodiment includes two doors, the tailgate 40 and the inner door 50, which are arranged side by side in the front-to-back direction. The inner door 50 is located inside the tailgate 40, in this case towards the front. The tailgate 40 is located outside the inner door 50, in this case towards the rear.

[0034] Figure 2 shows the rear view of the refuse collection vehicle 10 with the tailgate 40 closed. Figure 4 is a rear view of the refuse collection vehicle 10 with the tailgate 40 open and the inner door 50 closed. Figure 5 is a rear view of the refuse collection vehicle 10 with both the tailgate 40 and the inner door 50 open.

[0035] As shown in Figures 1 to 3, the input box body 30 comprises a bottom wall 30D, a left side wall 30L, a right side wall 30R, a rear wall 30Rr, and a top wall 30U. The front of the input box body 30 is open. Refuse placed in the refuse input box 20 is loaded into the refuse storage box 12 through the opening at the front of the refuse input box 20.

[0036] The bottom wall 30D constitutes the bottom of the input box body 30. As shown in Figure 3, the bottom wall 30D is convex downwards to accommodate the waste that is input. The left side wall 30L and the right side wall 30R extend upwards from the left and right ends of the bottom wall 30D, respectively. On the outer side of the left side wall 30L and the right side wall 30R in the vehicle width direction are provided a pair of sliding cylinders 63 of the loading device 60, which will be described later, and a side wall cover 39 that covers the sliding cylinders 63. The rear wall 30Rr is connected to the rear ends of the bottom wall 30D, the left side wall 30L, and the right side wall 30R. The rear edges of the left side wall 30L and the right side wall 30R are formed at an angle so that they are located further back as they are lower down. The rear wall 30Rr slopes downwards toward the rear. The top of the rear wall 30Rr is covered by a roof cover 37 that can be opened and closed. A waste input opening 31 is formed at the bottom of the rear wall 30Rr. A resin top cover 38 is attached to the upper wall 30U.

[0037] As shown in Figure 3, the left wall 30L and the right wall 30R are each provided with guide grooves 32 into which the tailgate 40 slidably engages (Figure 3 shows only the guide groove 32 on the right wall 30R). The guide groove 32 extends along the slope of the rear wall 30Rr. The guide groove 32 slopes downward toward the rear, following the slope of the rear wall 30Rr. The guide groove 32 curves in an arc shape when viewed from the left or right, following the shape of the tailgate 40.

[0038] The input box body 30 is equipped with a reinforcing cross member 33 stretched across its interior. Specifically, as shown in Figure 4, the cross member 33 is stretched between the left wall 30L and the right wall 30R and extends in the left-right direction. The cross member 33 extends so as to intersect the opening and closing direction of the tailgate 40 and the inner door 50 (here, the diagonal up-down direction). As shown in Figure 3, the cross member 33 comprises a pipe section 33a extending in the left-right direction, a pair of flange sections 33b provided at both ends of the pipe section 33a (only the right flange section 33b is shown in Figure 3), a stopper 33c, and a pair of stopper support plates 33d (only the right stopper support plate 33d is shown in Figure 3).

[0039] The pipe section 33a is configured in this case as a rectangular pipe with a rectangular cross-section. A pair of flange sections 33b are joined to the left and right ends of the pipe section 33a. The flange sections 33b are configured in this case as rectangular flat plates. The flange sections 33b protrude radially outward from the pipe section 33a. The pair of flange sections 33b are fixed to the left wall 30L and the right wall 30R of the input box body 30, respectively. As shown in Figure 3, in this embodiment, the pair of flange sections 33b are fastened to the left wall 30L and the right wall 30R by a plurality of bolts 34, respectively. The cross member 33 can be detached from the input box body 30 by removing the bolts 34. The cross member 33 is configured to be detachable from the input box body 30.

[0040] The stopper 33c extends in the left-right direction, substantially parallel to the pipe section 33a. The stopper 33c is positioned behind the pipe section 33a. A pair of stopper support plates 33d are joined to the rear surface of the rectangular pipe section 33a and extend toward the rear. The pair of stopper support plates 33d each extend in the front-rear direction and the up-down direction. The pair of stopper support plates 33d face each other in the left-right direction. The pair of stopper support plates 33d support the stopper 33c between them. In this embodiment, the stopper 33c is configured in the shape of a cylindrical pipe. As will be described in more detail later, the stopper 33c is a member for stopping the inner sheet 51 of the inner door 50 at the open end position.

[0041] The loading box body 30 is equipped with a storage section 35 that accommodates at least a portion of the open tailgate 40. Here, as shown in Figure 4, the loading box body 30 is configured to accommodate most of the open tailgate 40, excluding the area near the lower end. As shown in Figure 3, the storage section 35 is located in front of the portion of the rear wall 30Rr above the area where the waste loading port 31 is formed (on the inside side of the loading box body 30). By providing the storage section 35, the tailgate 40 can be stored inside the loading box body 30 even when it is in the open state. The storage section 35 can be easily maintained by opening and closing the roof cover 37.

[0042] As shown in Figure 3, the loading device 60 is installed inside the input box body 30. As shown in Figure 3, the loading device 60 includes a sliding guide 61, a sliding plate 62, a sliding cylinder 63, a compression plate 64, and a swinging cylinder (not shown).

[0043] The sliding guide 61 is located inside the input box body 30 and extends vertically. Here, the sliding guide 61 is configured in pairs and is provided on the left and right side walls 30L and 30R of the input box body 30, respectively. The sliding guide 61 extends so as to slope downward toward the rear. The sliding guide 61 has a groove into which the sliding plate 62 engages. However, the configuration of the sliding guide 61 is not limited to this. The sliding guide 61 may be, for example, a guide rail extending vertically.

[0044] The sliding plate 62 is configured to slide along the sliding guide 61. A sliding cylinder 63 is connected to the sliding plate 62. The sliding cylinder 63 is, for example, a hydraulic cylinder. The extension and retraction of the sliding cylinder 63 causes the sliding plate 62 to reciprocate up and down along the sliding guide 61.

[0045] A compression plate 64 is provided at the lower end of the sliding plate 62 so as to be able to swing in the longitudinal direction of the vehicle body. A swinging cylinder (not shown) is connected to the compression plate 64. The compression plate 64 swings back and forth due to the extension and retraction of the swinging cylinder.

[0046] The loading device 60 operates in a cycle consisting of: a reversal step in which the compression plate 64 is swung backward when the sliding plate 62 is in the raised position; a descent step in which the sliding plate 62 is slid downward when the compression plate 64 is in the rear position; a compression step in which the compression plate 64 is swung forward when the sliding plate 62 is in the lowered position to compress the waste with the compression plate 64; and an upward step in which the sliding plate 62 is slid upward when the compression plate 64 is in the forward position to send the compressed waste into the waste container 12. However, the configuration of the loading device 60 is not limited to the above. The loading device 60 may be configured, for example, to compress the waste with a rotating plate that rotates around a rotation axis extending in the left-right direction.

[0047] The tailgate 40 is the outer of the two doors of the refuse input box 20. The tailgate 40 is located outside the inner door 50, in this case, at the rear. As shown in Figure 2, the tailgate 40 comprises a door body 41 that closes the refuse input opening 31 when closed, and a pair of left and right handles 42 that are grasped by an operator when opening and closing. As shown in Figure 3, the door body 41 has a plate-like shape that curves in an arc when viewed from the left and right, and extends in the left-right and up-down directions. The door body 41 is made of metal, in this case iron. However, the door body 41 may be made of any high-strength material, and the material is not limited to metal. The left and right ends of the door body 41 are slidably engaged with the left and right guide grooves 32 of the input box body 30. When closed, the door body 41 is located behind the refuse input opening 31 and closes the refuse input opening 31. When the door body 41 is open, it is stored in the storage section 35 of the input box body 30.

[0048] A pair of handles 42 are attached near the lower end of the door body 41. As shown in Figure 4, even when the door body 41 is fully retracted into the storage compartment 35 of the waste box body 30, the pair of handles 42 are located outside the storage compartment 35 (see Figure 3). The waste box 20 includes a link arm (not shown) that supports the door body 41 so that it can slide vertically, and a spring (not shown) that assists in opening the door body 41.

[0049] The weight of the tailgate 40 is preferably 25 kg or more. The force required to open the tailgate 40 is preferably 10 kgf or more. Due to the weight of the tailgate 40 as described above, or because the force required to open the tailgate 40 as described above, the tailgate 40 can withstand the pressure of dust and debris and be kept closed, preventing the tailgate 40 from rattling open due to vibrations during driving.

[0050] The inner door 50 is located on the inside (front in this case) of the tailgate 40. The inner door 50 is configured to open and close at least a portion of the refuse inlet 31. Here, the inner door 50 is configured to be able to close the entire refuse inlet 31. Also, as shown in Figure 5, the inner door 50 is configured to be able to open the refuse inlet 31 to a point slightly below the lower end of the tailgate 40 when it is open.

[0051] As shown in Figure 4, the inner door 50 comprises an inner sheet 51, an end core material 52, a pair of left and right end return bolts 53, and a pair of left and right gripping straps 54. The inner sheet 51 is a member that seals the waste inlet 31 when closed. The inner sheet 51 is made of a flexible sheet-like material. In this case, the inner sheet 51 is made of waterproof fabric. However, the material of the inner sheet 51 is not particularly limited. The inner sheet 51 is preferably flexible, but does not have to be flexible. As shown in Figure 3, the inner sheet 51 is passed through the gap between the pipe portion 33a and the stopper 33c of the cross member 33. When the inner door 50 is opened and closed, the inner sheet 51 passes through the gap between the pipe portion 33a and the stopper 33c.

[0052] As shown in Figure 4, the lower end of the inner sheet 51 is folded back vertically to form a double layer. A pair of left and right end-folding bolts 53 fasten the folded double ends of the inner sheet 51. The number of end-folding bolts 53 may be three or more. The end core material 52 is inserted into the lower end of the inner sheet 51, which has been folded back to form a bag-like structure. In this case, the end core material 52 has a cylindrical shape that extends in the left-right direction.

[0053] A pair of left and right gripping straps 54 are fixed to the lower end of the inner sheet 51. Each gripping strap 54 is fixed at both ends to the lower end of the inner sheet 51 and is formed in a ring shape. The gripping straps 54 are an example of gripping parts that are grasped by an operator when opening and closing the inner door 50. The gripping straps 54 are mainly used to grip when closing the inner door 50. As shown in Figure 4, the gripping straps 54 are hooked onto hooks 36 provided on the rear wall 30Rr of the input box body 30 in order to hold the inner sheet 51 in a closed state. As shown in Figure 5, when the inner door 50 is open, the pair of gripping straps 54 are located below the lower end of the open tailgate 40. Therefore, it is possible to grasp the gripping straps 54 when closing the inner door 50 from an open state of the tailgate 40 and inner door 50.

[0054] The refuse collection box 20 according to this embodiment is configured to open by winding up the inner sheet 51. The inner sheet 51 is made of a flexible material so that it can be wound up. As shown in Figure 3, the refuse collection box 20 is equipped with a winding core 21 that winds up the inner sheet 51 when the inner door 50 is opened. The winding core 21 is biased to rotate forward by a spring (not shown). Maintenance of the winding core 21 can be performed by opening and closing the roof cover 37 without being obstructed by the cross member 33 (provided that the tailgate 40 is not stored in the storage compartment 35).

[0055] The lower end of the inner sheet 51 into which the end core material 52 is inserted, and the end return bolt 53 constitute an end member that abuts against the cross member 33 and stops the winding of the inner sheet 51 by the winding core 21. The end core material 52 and the end return bolt 53, as end members, abut against the cross member 33, more specifically the pipe section 33a and the stopper 33c, at the end position of the winding of the inner sheet 51, thereby restricting the winding of the inner sheet 51. The end core material 52 and the end return bolt 53 are configured so that they cannot pass through the gap between the pipe section 33a and the stopper 33c of the cross member 33. Therefore, the end core material 52 and the end return bolt 53 catch in the gap between the pipe section 33a and the stopper 33c and function as end members.

[0056] The end members provided on the inner sheet 51 and the stoppers that the end members catch on are not limited to those described above. The end members provided on the inner sheet 51 may be, for example, flat or protruding members configured to catch on the stoppers. The stoppers provided on the input box body 30 do not have to form a gap and do not have to be provided on the cross member 33. For example, the stoppers provided on the input box body 30 may be protrusions provided at a position corresponding to the end members of the inner sheet 51.

[0057] The inner door 50 is designed to be lighter in weight than the tailgate 40. As a result, opening the inner door 50 requires less effort than opening the tailgate 40. The advantages of having both the tailgate 40 and the lighter inner door 50 will be discussed later. Preferably, the weight of the inner door 50 is 3 kg or less. Preferably, the force required to open the inner door 50 is 3 kgf or less. In this embodiment, since the inner sheet 51 is wound up by the force of the spring, the force required to push up the inner door 50 is zero.

[0058] As shown in Figure 4, the waste input box 20 is equipped with a pair of leak prevention members 22, which are provided on the left wall 30L and the right wall 30R of the waste input port 31, respectively, and which overlap with the edge of the inner door 50 when viewed from the waste input port 31. The pair of leak prevention members 22 are members that prevent waste from leaking out from between the left edge of the inner sheet 51 and the left wall 30L of the waste input port 31, and between the right edge of the inner sheet 51 and the right wall 30R of the waste input port 31. In this embodiment, the inner sheet 51 is not inserted into grooves formed in the left wall 30L and the right wall 30R of the input box body 30. Also, the inner sheet 51 is flexible. Therefore, for example, due to the pressure of the waste, waste may leak out from the left and right sides of the inner sheet 51. The leak prevention members 22 prevent this. In this case, the leak-preventing member 22 is a rubber plate. However, the material of the leak-preventing member 22 is not particularly limited. The leak-preventing member 22 may be made of a material that does not have flexibility.

[0059] [Effects of the Embodiment] The following describes the effects and advantages that can be achieved by the refuse input box 20 and the refuse collection vehicle 10 equipped therewith according to this embodiment.

[0060] The refuse input box 20 according to this embodiment comprises a box-shaped input box body 30 having a refuse input opening 31, a tailgate 40 that can open and close the refuse input opening 31, and an inner door 50 provided inside the tailgate 40 and configured to open and close at least a portion of the refuse input opening 31. The inner door 50 is lighter in weight than the tailgate 40.

[0061] With this type of refuse input box 20, when collecting refuse while moving over short distances, the refuse input opening 31 can be opened and closed more easily by opening and closing the inner door 50, which is lighter than the tailgate 40. Furthermore, for example, when driving the refuse collection vehicle 10 at a normal speed on a roadway, at least closing the tailgate 40, which is heavier than the inner door 50, can prevent refuse from falling out of the refuse collection vehicle 10.

[0062] When collecting refuse sequentially, it is often necessary to move the refuse collection truck to a nearby location. When moving to such a nearby location, it is cumbersome to repeatedly open and close the heavy tailgate, which requires considerable force to open and close. However, moving the refuse collection truck with the refuse input box door open is undesirable for reasons such as the risk of refuse falling out of the box and the inability to prevent odors. Therefore, a configuration in which the refuse input opening of the refuse input box can be opened and closed with a simple splash-proof cover, such as a curtain, is sometimes desired. A simple splash-proof cover would reduce the effort required to open and close the refuse input opening each time the truck is moved. However, with a simple splash-proof cover, there is a risk of refuse falling out of the refuse collection truck when it is traveling at normal speed on roads, etc.

[0063] In view of these issues, the refuse input box 20 according to this embodiment is equipped with two doors: a heavy tailgate 40 and a lighter inner door 50. According to the refuse input box 20 according to this embodiment, if the next refuse collection location is close to the current refuse collection location, the refuse collection vehicle 10 can be moved to the next collection location by closing only the inner door 50 and leaving the tailgate 40 open. Therefore, the operation of opening and closing the heavy tailgate 40 is unnecessary, and the labor involved in opening and closing the refuse input port 31 can be reduced. Since the next refuse collection location is close, the refuse collection vehicle 10 can be moved with the tailgate 40 open and the inner door 50 closed during that distance. For short distances, the inner door 50 alone is sufficient to prevent refuse from falling and odors from escaping.

[0064] On the other hand, for example, after the collection of rubbish has finished, the rubbish collection vehicle 10 is driven at a normal speed on a road or the like. In such cases, at least the tailgate 40 is closed. By closing the tailgate 40, which is heavy and has the strength to withstand the pressure of rubbish and is less affected by vibrations caused by driving at a normal speed, it is possible to prevent rubbish from falling even when the rubbish collection vehicle 10 is driving at a normal speed.

[0065] In this embodiment, the tailgate 40 is made of metal and includes a door body 41 that closes the refuse inlet 31 when closed. The tailgate 40 is located outside the inner door 50. With this configuration, the strength of the metal door body 41 allows for a more reliable closure of the refuse inlet 31. By positioning the tailgate 40 outside the inner door 50, the tailgate 40 is closer to the worker standing behind the refuse inlet 20. This makes it easier to open and close the tailgate 40, reducing the effort required for the operation. It should be noted that it is not prohibited to position the lighter door outside the heavier door.

[0066] In this embodiment, the inner door 50 is made of a flexible sheet-like material and includes an inner sheet 51 that closes at least a portion of the waste inlet 31 when closed. With this configuration, because the inner sheet 51 is flexible, there is less resistance when opening and closing the inner door 50. Therefore, the inner door 50 can be opened and closed more smoothly. In addition, since flexible sheet-like materials are generally lightweight, the inner door 50 can be easily made lighter.

[0067] The refuse collection box 20 according to this embodiment is equipped with a winding core 21 that winds up the inner sheet 51 when the inner door 50 is opened. With this configuration, by winding up the inner sheet 51, the inner sheet 51 can be stored in the limited space inside the refuse collection box 20. The space inside the refuse collection box 20 is limited, and if the inner door 50 cannot be placed in the narrow space, it is difficult to provide the inner door 50 in addition to the tailgate 40.

[0068] In this embodiment, the input box body 30 is equipped with a reinforcing cross member 33 stretched inside so as to intersect the opening and closing direction of the inner sheet 51. The inner door 50 is equipped with an end core material 52 and an end folding bolt 53 as end members that abut against the cross member 33 at the end position of the winding of the inner sheet 51 and restrict the winding of the inner sheet 51. With this configuration, the winding of the inner sheet 51 can be stopped at the end position by utilizing the reinforcing cross member 33.

[0069] In this embodiment, the cross member 33 is configured to be detachably attached to the input box body 30. With this configuration, when replacing the inner door 50, the cross member 33 can be removed to improve work efficiency. Since the inner sheet 51 is made of a flexible material, it generally does not have the same durability as a metal tailgate 40. Therefore, relatively frequent replacement of the inner door 50 is anticipated.

[0070] The refuse input box 20 according to this embodiment is provided with a pair of leakage prevention members 22, which are located on the left wall 30L and the right wall 30R of the refuse input opening 31, respectively, and which overlap with the edge of the inner door 50 when viewed from the refuse input opening 31. With this configuration, it is possible to suppress the leakage of refuse from between the edge of the inner door 50 and the side walls 30L and 30R of the refuse input opening 31, especially when only the inner door 50 is closed.

[0071] In this embodiment, the input box body 30 includes a storage section 35 that houses at least a portion of the open tailgate 40. With this configuration, since the tailgate 40 is stored in the storage section 35 when open, the refuse collection vehicle 10 can be driven with the tailgate 40 open. If the open tailgate 40 is not stored in the input box body 30, problems are likely to occur when driving the refuse collection vehicle 10, such as the indicator lights of the refuse collection vehicle 10 being obscured by the open tailgate 40.

[0072] In this embodiment, the inner door 50 is equipped with a gripping strap 54 that is grasped when opening and closing. The gripping strap 54 is located below the lower end of the open tailgate 40 when the inner door 50 is open. With this configuration, it is possible to grasp the gripping strap 54 when closing the inner door 50 from the open state of the tailgate 40 and the inner door 50. Note that the gripping part grasped by the operator when opening and closing is not limited to the gripping strap 54. The gripping part may be, for example, a handle.

[0073] [Other embodiments] A preferred embodiment of the present invention has been described above. However, the above embodiment is merely one example of an embodiment of the present invention. The present invention can be implemented in various other forms.

[0074] For example, in the above embodiment, the majority of the inner door 50 was made of a flexible sheet-like material, more specifically, a waterproof cloth. However, the main part of the inner door 50 may be made of a non-flexible material, such as metal or resin. The flexible sheet-like member may be realized, for example, by a bellows. The flexible sheet-like material may be, for example, rubber or resin. The material of the door body 41 of the tailgate 40 is not limited to metal.

[0075] In the above embodiment, the inner sheet 51 is rolled up when the inner door 50 is opened, but it does not have to be rolled up. For example, the inner sheet 51 may slide when the inner door 50 is opened and closed, like a tailgate 40. Guide members may be provided on the left wall 30L and the right wall 30R of the deposit box body 30, which the inner door 50 slidably engages with. The guide member may include a common guide portion that engages with both the tailgate 40 and the inner door 50, and two individual guide portions that branch off from the common portion and engage with the tailgate 40 and the inner door 50 respectively.

[0076] Unless otherwise specified, the embodiments are not limiting to the present invention. For example, the configuration of the loading device 60 is not particularly limited. For example, the leakage prevention member 22 may not be provided. [Explanation of Symbols]

[0077] 10 Garbage collection vehicles 20 Garbage disposal box 21 core 22 Leakage prevention member 30 Input box body 30L left side wall (side wall) 30R Right side wall (side wall) 31 Garbage inlet 33 Crossmember 35 Storage compartment 40 Tailgate (First Door) 41 Door body 50 Inner door (second door) 51 Inner Seat 52 End core material (end member) 53 End-folded bolt (end member) 54 Gripping string (gripping part) 60 Loading equipment

Claims

1. A box-shaped input box body with a waste input opening formed therein, A first door that can open and close the aforementioned waste input opening, A second door is provided on the inside or outside of the first door and is configured to open and close at least a portion of the waste inlet, and is lighter in weight than the first door. Garbage disposal box.

2. The first door is located outside the second door. The waste disposal box according to claim 1.

3. The first door is made of metal and includes a door body that closes the waste inlet when closed. The waste disposal box according to claim 2.

4. The second door is made of a flexible sheet-like material and includes an inner sheet that closes at least a portion of the waste inlet when closed. The waste disposal box according to claim 3.

5. The device further includes a winding core that winds up the inner sheet when the second door is opened. The waste disposal box according to claim 4.

6. The aforementioned input box body is equipped with a reinforcing cross member stretched inside so as to intersect the opening and closing direction of the inner sheet, The second door is equipped with an end member that contacts the cross member at the end position of the inner sheet's winding and restricts the winding of the inner sheet. The waste disposal box according to claim 5.

7. The cross member is configured to be detachably attached to the input box body. The waste disposal box according to claim 6.

8. The waste inlet is further provided with a leakage prevention member that is located on the side wall of the waste inlet and overlaps with the edge of the second door when viewed from the waste inlet. The waste disposal box according to claim 4.

9. The input box body includes a storage section for storing at least a portion of the first door when it is open. The waste disposal box according to claim 2.

10. The second door is equipped with a gripping portion that is grasped when opening and closing, The gripping portion is located below the lower end of the first door when the second door is open. The waste disposal box according to claim 1.

11. A garbage collection vehicle equipped with a garbage input box according to any one of claims 1 to 10.

Images