Refuse collection truck

Abstract

To provide a garbage truck which can hold a dust guide plate in an upright position without providing an opening / closing door with a protrusion that prevents the dust guide plate from falling backward from the upright position, and further enhance safety when the opening / closing door is changed from an open state to a closed state.SOLUTION: A garbage truck includes: a garbage input box 5; a tailgate that opens and closes a part of a garbage inlet of the garbage input box 5; a garbage guide plate 10 that is placed below the tailgate and opens and closes a lower portion of the garbage inlet; and a rotary shaft 12 extending laterally from the garbage guide plate 10. The garbage guide plate 10 is rotatable between an upright position that closes the lower portion of the garbage inlet and a lying position that opens the lower portion of the garbage inlet. The garbage truck has a rotary shaft holding mechanism 20 that holds a rotary shaft 12 when the garbage guide plate 10 is in the upright position.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a refuse collection vehicle, and more particularly to a refuse collection vehicle equipped with a refuse guide plate rotatably provided below a refuse inlet. [Background technology]

[0002] Conventionally, a garbage collection vehicle is known in which a tailgate as an opening and closing door and a rotatable garbage guide plate are provided at the garbage inlet of the garbage inlet box. For example, Patent Document 1 describes a garbage collection vehicle equipped with a tailgate that can slide up and down and a garbage guide plate rotatably attached to the lower edge of the garbage inlet. In such a garbage collection vehicle, when the tailgate is moved upward, the garbage inlet is opened, and garbage can be thrown into the garbage inlet box from the garbage inlet. When the garbage guide plate is rotated backward from the upright position to the down position with the garbage inlet open, garbage can be temporarily placed on the garbage guide plate, making it easier for an operator to work.

[0003] In the refuse collection vehicle described in Patent Document 1, a protrusion is provided at the bottom center of the tailgate. The protrusion is arranged so as to overlap the refuse guide plate in the upright position as viewed from the rear of the vehicle when the tailgate and the refuse guide plate are closed. Even if the refuse guide plate is about to rotate backwards, the protrusion hits the refuse guide plate, thereby restricting the backward rotation of the refuse guide plate. This makes it possible to prevent the refuse guide plate from falling backwards and opening when the refuse collection vehicle is traveling.

[0004] In conventional refuse collection vehicles such as that described in Patent Document 1, the tailgate is of a manual opening and closing type, and an operator generally holds an operating handle attached to the tailgate with both hands to open and close the tailgate while unlocking it. In such conventional manually opening and closing tailgates, when the tailgate is changed from an open state to a closed state, there is no risk of the operator's hand being caught between the lower end of the tailgate and the refuse guide plate in the upright position.

[0005] Meanwhile, in recent years, an automatic tailgate for a refuse collection vehicle has been developed, as described in, for example, Patent Document 2. Unlike the above-mentioned manually opened and closed tailgate, such an automatic tailgate does not require both hands to hold an operating handle provided on the tailgate, and the tailgate can be opened and closed with the push of a button. This allows the worker to keep both hands free when opening and closing the tailgate, improving workability. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2015-189575 A [Patent Document 2] JP 2019-202887 A Summary of the Invention [Problem to be solved by the invention]

[0007] Incidentally, as described in Patent Document 1, in a refuse collection vehicle in which a protrusion provided at the lower end of the tailgate restricts the rearward rotation of the refuse guide plate from the upright position, it is conceivable to make the tailgate an automatic opening and closing type. In this case, since the operator has both hands free, there is a risk that the operator will insert his / her hand between the lower end of the tailgate and the refuse guide plate in the upright position when automatically closing the tailgate from the open state. In that case, there is a risk that the operator's hand will touch the protrusion provided at the lower end of the tailgate.

[0008] The present invention has been made in consideration of the above points, and its object is to provide a garbage collection vehicle that can maintain a garbage guide plate in an upright position without providing a protrusion on the opening and closing door to prevent the garbage guide plate from falling backward from the upright position, thereby further increasing safety when changing the opening and closing door from an open state to a closed state. [Means for solving the problem]

[0009] The garbage collection vehicle according to the present invention includes a garbage bin with a garbage inlet opening to the rear, an opening and closing door attached to the garbage bin for opening and closing a part of the garbage inlet, a garbage guide plate attached to the garbage bin, disposed below the opening and closing door for opening and closing a lower part of the garbage inlet below the part, a rotating shaft extending laterally from the garbage guide plate, and a rotating shaft support member for rotatably supporting the rotating shaft. The garbage guide plate is rotatable between an upright position for closing the lower part of the garbage inlet and a lying position for opening the lower part of the garbage inlet. The garbage collection vehicle further includes a rotating shaft holding mechanism for holding the rotating shaft when the garbage guide plate is in the upright position.

[0010] According to the above-mentioned refuse collection vehicle, when the rotating shaft holding mechanism holds the rotating shaft, the rotation of the rotating shaft is restricted, so that the refuse guide plate is held in the upright position. Therefore, the refuse guide plate can be prevented from falling backward due to its own weight, and the refuse guide plate can be prevented from falling backward and opening when the refuse collection vehicle is traveling. This makes it possible to hold the refuse guide plate in the upright position even if the opening and closing door does not have a protrusion for preventing the refuse guide plate from falling backward. Therefore, when the opening and closing door is changed from the open state to the closed state, the worker's hand does not come into contact with the protrusion of the opening and closing door, and the safety when the opening and closing door is changed from the open state to the closed state can be further improved. This structure is particularly useful for a refuse collection vehicle equipped with an automatic opening and closing door (for example, an automatic opening and closing tailgate).

[0011] The rotating shaft holding mechanism may be configured to hold the rotating shaft itself, or may have an engaging member connected to the rotating shaft and a holding member that engages with the engaging member and holds the engaging member when the garbage guide plate is in the upright position.

[0012] With this, the retaining member retains the engaging member, thereby enabling the garbage guide plate to be retained in the upright position.

[0013] The refuse collection vehicle may include a corner bumper disposed on a side of the refuse guide plate. At least a portion of the holding member may be disposed inside the corner bumper.

[0014] This allows the internal space of the corner bumper to be effectively utilized as an installation space for the retaining member, thereby enabling the rotary shaft retaining mechanism to be disposed in a compact manner.

[0015] The engaging member may have an arm member connected to the rotating shaft and a striker provided on the arm member. The retaining member may include a snatch lock having a hook engageable with the striker.

[0016] As a result, before the trash dumping operation, the worker can remove the striker from the snatch lock, for example, by pulling the upper edge of the trash guide plate backward, and the trash guide plate can be easily rotated from the upright position to the downright position. The force for removing the striker from the snatch lock is preferably set to a force greater than the force with which the upper edge of the trash guide plate is pulled backward due to vibrations or acceleration / deceleration during vehicle travel. After the trash dumping operation is completed, the worker can easily rotate the trash guide plate from the downright position to the upright position, for example, by pushing the upper edge of the trash guide plate forward, and the striker can be engaged with the snatch lock to easily hold the trash guide plate in the upright position.

[0017] The snatch lock may have a swing shaft that swingably supports the hook. The axis of the rotating shaft may extend in the left-right direction of the vehicle, and the axis of the swing shaft may extend in the up-down direction of the vehicle. Alternatively, the axis of the rotating shaft may extend in the left-right direction of the vehicle, and the axis of the swing shaft may extend in the front-rear direction of the vehicle.

[0018] This allows the snatch lock to be conveniently positioned.

[0019] The garbage collection vehicle may be provided with a stopper on the side edge of the garbage inlet of the garbage box, which abuts against the garbage guide plate rotated from the laid-down position toward the upright position to regulate the rotation of the garbage guide plate.

[0020] This prevents the trash guide plate from rotating beyond the upright position when the operator rotates the trash guide plate from the laid-down position to the upright position, thereby preventing excessive force from being applied to the rotating shaft holding mechanism.

[0021] When the opening / closing door is closed and the trash guide plate is in the upright position, the opening / closing door and the trash guide plate do not have to overlap when viewed from the rear of the vehicle.

[0022] As a result, even if the trash guide plate is rotated with the door closed, the trash guide plate does not interfere with the door. Therefore, the trash guide plate can be opened and closed not only when the door is open, but also when the door is closed. Since the order of opening and closing the door and the trash guide plate is not limited, the worker's work is made easier. Effect of the Invention

[0023] According to the present invention, a garbage collection vehicle can be provided that can maintain a garbage guide plate in an upright position without providing a protrusion on the opening and closing door to prevent the garbage guide plate from falling backward from the upright position, thereby further increasing safety when changing the opening and closing door from an open state to a closed state. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 is a left side view of a refuse collection vehicle according to a first embodiment. [Diagram 2] FIG. 2 is a rear view of the refuse collection vehicle according to the first embodiment. [Diagram 3] FIG. 2 is a partial rear view of the rear part of the garbage collection vehicle when the garbage guide plate is in an upright position in the first embodiment. [Figure 4]FIG. 2 is a partial rear view of the rear part of the refuse collection vehicle when the refuse guide plate is in a laid-down position in the first embodiment. [Diagram 5] FIG. 2 is a left side view of the rear part of the garbage collection vehicle when the garbage guide plate is in an upright position in the first embodiment. [Figure 6] FIG. 2 is a left side view of the rear part of the garbage collection vehicle when the garbage guide plate is in a laid-down position in the first embodiment. [Figure 7] FIG. 4 is a plan view of the rotating shaft holding mechanism when the trash guide plate is in an upright position in the first embodiment. [Figure 8] FIG. 4 is a plan view of the rotating shaft holding mechanism when the trash guide plate is in a laid-down position in the first embodiment. [Figure 9] FIG. 1(a) is a plan view of a snatch lock, and FIG. 1(b) is a side view of the snatch lock. [Figure 10] FIG. 11 is a left side view of a refuse collection vehicle according to a second embodiment. [Figure 11] FIG. 11 is a rear view of the refuse collection vehicle according to the second embodiment. [Figure 12] FIG. 11 is a partial rear view of the rear part of the garbage collection vehicle when the garbage guide plate is in the upright position in the second embodiment. [Figure 13] FIG. 11 is a partial rear view of the rear part of the refuse collection vehicle when the refuse guide plate is in the laid-down position in the second embodiment. [Figure 14] FIG. 11 is a left side view of the rear part of the garbage collection vehicle when the garbage guide plate is in the upright position in the second embodiment. [Figure 15] FIG. 11 is a left side view of the rear part of the garbage collection vehicle when the garbage guide plate is in the laid-down position in the second embodiment. [Figure 16] FIG. 11 is a plan view of the rotating shaft holding mechanism when the trash guide plate is in the upright position in the second embodiment. [Figure 17] FIG. 11 is a plan view of the rotating shaft holding mechanism when the trash guide plate is in the laid-down position in the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] (First embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a left side view of a refuse collection vehicle 1 according to a first embodiment. Fig. 2 is a rear view of the refuse collection vehicle 1 according to the first embodiment.

[0026] The refuse collection vehicle 1 includes a chassis 2, a driver's cab 3 supported by the chassis 2, a refuse storage box 4 supported by the chassis 2, and a refuse drop box 5 connected to the refuse storage box 4. The refuse drop box 5 is disposed behind the refuse storage box 4. Although not shown in the figure, a refuse loading device is provided inside the refuse drop box 5 for loading the refuse dropped into the refuse drop box 5 into the refuse storage box 4.

[0027] As shown in FIG. 2, the garbage inlet 5 is formed with a garbage inlet 6 that opens to the rear. The garbage collection vehicle 1 is provided with a tailgate 7 as an opening / closing door for opening and closing a part of the garbage inlet 6. The tailgate 7 is configured to open and close most of the garbage inlet 6. The tailgate 7 is attached to the garbage inlet 5 so as to be openable and closable. In this embodiment, the tailgate 7 opens and closes a part of the garbage inlet 6 by sliding up and down. The tailgate 7 is attached to the garbage inlet 5 so as to be able to slide up and down. A handle 8 is provided at the lower end of the tailgate 7. In the following description, the part of the garbage inlet 6 that is closed by the tailgate 7 is referred to as the upper part of the garbage inlet 6. The part below the upper part of the garbage inlet 6 is referred to as the lower part of the garbage inlet 6.

[0028] The refuse collection vehicle 1 is equipped with a refuse guide plate 10 arranged below the tailgate 7. The refuse guide plate 10 is rotatable around an axis 12c of a rotating shaft 12 described later (see FIG. 3). The refuse guide plate 10 is rotatably attached to the refuse input box 5 and opens and closes the lower part of the refuse input port 6. The refuse guide plate 10 is rotatable between an upright position for closing the lower part of the refuse input port 6 and a laid-down position for opening the lower part of the refuse input port 6. FIG. 3 and FIG. 5 are respectively a partial back view and a partial side view of the rear part of the refuse collection vehicle 1 when the refuse guide plate 10 is in the upright position. FIG. 4 and FIG. 6 are respectively a partial back view and a partial side view of the rear part of the refuse collection vehicle 1 when the refuse guide plate 10 is in the laid-down position.

[0029] As shown in Figures 4 and 6, a support member 51 is provided below the trash guide plate 10. The support member 51 supports the trash guide plate 10 when the trash guide plate 10 is in the laid-down position. The support member 51 has a support base 51A and a rubber cushioning material 51B fixed to the support base 51A. When the trash guide plate 10 is rotated backward from the upright position, the surface of the trash guide plate 10 comes into contact with the cushioning material 51B, and the trash guide plate 10 is held in the laid-down position by the support member 51.

[0030] As shown in FIG. 3, the trash guide plate 10 is provided with a rotating shaft 12. The rotating shaft 12 extends laterally from the trash guide plate 10. In this embodiment, a part of the rotating shaft 12 is disposed below the trash guide plate 10 when the trash guide plate 10 is in the upright position. A part of the rotating shaft 12 is disposed inward in the vehicle width direction from the side edge of the trash guide plate 10 (to the right in FIG. 3). Another part of the rotating shaft 12 is disposed outward in the vehicle width direction from the trash guide plate 10 (to the left in FIG. 3). However, the rotating shaft 12 only needs to have a part extending laterally from the trash guide plate 10, and the part located inward in the vehicle width direction from the side edge of the trash guide plate 10 is not necessarily required. The rotating shaft 12 may have a solid structure or a hollow structure.

[0031] The refuse collection vehicle 1 has a side wall 9 disposed outward in the vehicle width direction from the refuse inlet 6. An end 12a of a rotating shaft 12 penetrates the side wall 9. The end 12a of the rotating shaft 12 is inserted into a cylindrical bearing member 14 provided on the side wall 9 and is rotatably supported by the bearing member 14. In this embodiment, the bearing member 14 constitutes a rotating shaft support member that rotatably supports the rotating shaft 12.

[0032] The refuse collection vehicle 1 is provided with a rotating shaft holding mechanism 20 that holds the rotating shaft 12 when the refuse guide plate 10 is in the upright position. The term "holding" as used herein means that the rotating position of the rotating shaft 12 is maintained so that the refuse guide plate 10 does not rotate naturally from the upright position due to its own weight, and furthermore, against the force in the front-rear direction of the vehicle that is applied to the refuse guide plate 10 in the upright position due to vibration and acceleration / deceleration during vehicle travel. Next, the details of the rotating shaft holding mechanism 20 will be described with reference to Figs. 3 to 8. Figs. 7 and 8 are plan views of the rotating shaft holding mechanism 20 when the refuse guide plate 10 is in the upright position and the lowered position, respectively. Figs. 3, 5, and 7 show the rotating shaft holding mechanism 20 when the refuse guide plate 10 is in the upright position. Figs. 4, 6, and 8 show the rotating shaft holding mechanism 20 when the refuse guide plate 10 is in the lowered position.

[0033] As shown in Figure 4, the rotating shaft holding mechanism 20 has an engaging member 30 connected to the rotating shaft 12, and a holding member 40 that engages with the engaging member 30 and holds the engaging member 30 when the garbage guide plate 10 is in the upright position.

[0034] 3, the engagement member 30 has an arm member 31 connected to the rotary shaft 12, and a striker 32 provided on the arm member 31. The shapes of the arm member 31 and the striker 32 are not particularly limited, but in this embodiment, the arm member 31 is formed in an L-shaped plate shape, and the striker 32 is formed in a U-shaped rod shape.

[0035] In this embodiment, the holding member 40 has a snatch lock 41 as shown in Fig. 9. Fig. 9(a) is a plan view of the snatch lock 41, and Fig. 9(b) is a side view of the snatch lock 41. The snatch lock 41 according to this embodiment is a so-called door catch, and includes a base member 42, a hook 44 supported on the base member 42 by a swing shaft 43, and a spring 45 that biases the hook 44.

[0036] A hook groove 44a is formed in the hook 44. The swing shaft 43 swingably supports the hook 44. The hook 44 can swing between a locked position shown by a solid line in Fig. 9(b) and an unlocked position shown by a virtual line.

[0037] One end of the spring 45 is pivotally engaged with the base member 42, and the other end of the spring 45 is pivotally engaged with the hook 44. The spring 45 is disposed so that the urging force on the hook 44 becomes zero when the hook 44 is in a predetermined position between the locked position and the unlocked position (hereinafter referred to as the neutral position). The spring 45 is configured to urge the hook 44 toward the locked position from the neutral position when the hook 44 is in the locked position, and to urge the hook 44 toward the unlocked position from the neutral position when the hook 44 is in the unlocked position. When the hook 44 is in the locked position, the spring 45 urges the hook 44 in the counterclockwise direction in FIG. 9(b). When the hook 44 is in the unlocked position, the spring 45 urges the hook 44 in the clockwise direction in FIG. 9(b).

[0038] As shown by solid lines in Fig. 9(b), when the hook 44 reaches the locked position with the striker 32 engaged with the hook groove 44a, the striker 32 is locked by the elastic force of the spring 45. Note that "locked" here means that the movement of the striker 32 is prevented unless a force exceeding the elastic force of the spring 45 is applied. When a force exceeding the elastic force of the spring 45 is applied to the striker 32 in the upward direction in Fig. 9(b), the hook 44 rotates from the locked position to the unlocked position, and the striker 32 is released from the hook groove 44a. This releases the lock by the snatch lock 41, and the striker 32 becomes movable.

[0039] As shown in Fig. 3, the snatch lock 41 is disposed in such a position that the axis 43c of the swing shaft 43 extends in the vertical direction of the vehicle. The snatch lock 41 is disposed so that the hook 44 moves from the locked position to the unlocked position by rotating backward in the longitudinal direction of the vehicle, and moves to the locked position by rotating forward in the longitudinal direction of the vehicle from the unlocked position. The snatch lock 41 is disposed so as to be in a position as shown in Fig. 9(b) when viewed from above the vehicle.

[0040] As shown in FIG. 3, a bracket 47A is welded to the side wall 9 of the garbage bin 5. A bracket 47B is fixed to the bracket 47A with a bolt 48. The snatch lock 41 is fixed to the bracket 47B with a bolt 49. In this manner, the snatch lock 41 is attached to the garbage bin 5 via the bracket 47A and the bracket 47B. The bracket 47A and the bracket 47B form part of the retaining member 40. However, the above-mentioned attachment structure is merely one example. The structure for attaching the snatch lock 41 to the garbage bin 5 is not particularly limited.

[0041] As shown in Fig. 2, corner bumpers 16 are disposed on the lower left and lower right of the trash bin 5. The corner bumpers 16 are disposed on the sides of the trash guide plate 10. As shown in Figs. 3 to 8, in this embodiment, the engaging member 30 and the holding member 40 are entirely housed inside the left corner bumper 16. The rotating shaft holding mechanism 20 is entirely housed inside the left corner bumper 16.

[0042] As shown in Fig. 4, a stopper 52 is provided on the side edge of the trash insertion opening 6 in the side wall 9. The stopper 52 is a member that restricts the rotation of the trash guide plate 10 from the upright position toward the front of the vehicle by contacting the trash guide plate 10 that has rotated from the laid-down position toward the upright position. Even if the worker vigorously rotates the trash guide plate 10 toward the upright position, the stopper 52 contacts the back surface of the trash guide plate 10, thereby restricting excessive rotation of the trash guide plate 10.

[0043] The above is the configuration of the refuse collection vehicle 1. Next, the opening and closing operation of the refuse guide board 10 will be described.

[0044] Before an operator puts trash into the trash bin 5, the trash inlet 6 is closed by the tailgate 7 and the trash guide plate 10. The trash guide plate 10 is held in an upright position. As shown in FIG. 5, when the trash guide plate 10 is in the upright position, the striker 32 extends downward. The striker 32 engages with the hook 44 of the snatch lock 41 and is locked by the snatch lock 41.

[0045] When an operator puts trash into the trash bin 5, the tailgate 7 and the trash guide plate 10 are opened. For example, after sliding the tailgate 7 upward to open the upper part of the trash inlet 6, the operator grasps the upper edge of the trash guide plate 10 and pulls it backward. Then, the force of the operator is transmitted to the hook 44 of the snatch lock 41 via the trash guide plate 10, the rotating shaft 12, the arm member 31, and the striker 32, and the hook 44 rotates from the locked position (see the solid line in FIG. 9(b)) to the unlocked position (see the imaginary line in FIG. 9(b)) against the biasing force of the spring 45. While the hook 44 is rotating, the striker 32 rotates around the axis 12c of the rotating shaft 12 and slides in the hook groove 44a. When the hook 44 reaches the unlocked position, the striker 32 is released from the hook groove 44a. Then, the striker 32 further rotates about the axis 12c until the trash guide plate 10 reaches the lowered position. When the trash guide plate 10 reaches the lowered position, the trash guide plate 10 is supported by the support member 51 and held in the lowered position (see FIG. 6). The trash guide plate 10 can be used as a platform or the like for temporarily placing trash when an operator inserts trash.

[0046] After the worker throws the trash into the trash bin 5 and the loading operation is completed, the tailgate 7 and the trash guide plate 10 are closed. For example, when closing the trash guide plate 10, the worker pushes the upper edge of the trash guide plate 10 forward. Then, the striker 32 rotates counterclockwise in FIG. 6 around the axis 12c of the rotating shaft 12. Before the trash guide plate 10 reaches the standing position, the striker 32 engages with the hook groove 44a of the snatch lock 41, and the hook 44 is pushed by the striker 32 and rotates from the unlocked position to the locked position. When the hook 44 reaches the locked position, the striker 32 is locked by the snatch lock 41. This restricts the rotation of the rotating shaft 12, and the trash guide plate 10 is held in the standing position (see FIG. 5).

[0047] As described above, the refuse collection vehicle 1 according to this embodiment is provided with the rotating shaft holding mechanism 20 that holds the rotating shaft 12 when the refuse guide plate 10 is in the upright position. When the rotating shaft holding mechanism 20 holds the rotating shaft 12, the rotation of the rotating shaft 12 is restricted, so that the refuse guide plate 10 is held in the upright position. Therefore, the refuse guide plate 10 can be prevented from falling backward due to the force applied by vibration or acceleration / deceleration during vehicle travel, or due to its own weight, and the refuse guide plate 10 can be prevented from opening when the refuse collection vehicle 1 is traveling. According to the refuse collection vehicle 1 according to this embodiment, in order to prevent the refuse guide plate 10 from falling backward, it is not necessary to provide a protrusion that hits the refuse guide plate 10 on the tailgate 7. In order to prevent the refuse guide plate 10 from opening while traveling, it is not necessary to have the refuse guide plate 10 hit a part of the tailgate 7. Therefore, by not providing a protrusion on the tailgate 7, it is possible to eliminate the risk of an operator's hands touching a protrusion on the tailgate 7 when changing the tailgate 7 from an open state to a closed state.

[0048] The rotating shaft holding mechanism 20 may be configured to hold the rotating shaft 12 itself, but in this embodiment, it has an engaging member 30 connected to the rotating shaft 12, and a holding member 40 that engages with the engaging member 30 and holds the engaging member 30 when the trash guide plate 10 is in the upright position. Even if the rotating shaft 12 itself is not held, the holding member 40 holds the engaging member 30, so that the trash guide plate 10 can be held in the upright position.

[0049] According to this embodiment, the holding member 40 is disposed inside the corner bumper 16. The internal space of the corner bumper 16 is effectively utilized as an installation space for the holding member 40. Compared to a case in which the holding member 40 is disposed outside the corner bumper 16, the rotating shaft holding mechanism 20 can be disposed more compactly.

[0050] According to this embodiment, the engagement member 30 has an arm member 31 connected to the rotating shaft 12 and a striker 32 provided on the arm member 31. The holding member 40 has a snatch lock 41 having a hook 44 that can engage with the striker 32. By using the snatch lock 41, the rotating shaft 12 can be suitably held when the garbage guide plate 10 is in the upright position. In addition, the striker 32 can be removed from the snatch lock 41 by an operator simply pulling the upper edge of the garbage guide plate 10 backward, and the garbage guide plate 10 can be easily rotated from the upright position to the downright position. In addition, the garbage guide plate 10 can be easily rotated from the downright position to the upright position by an operator simply pushing the upper edge of the garbage guide plate 10 forward, and the striker 32 engages with the snatch lock 41, so that the garbage guide plate 10 can be easily held in the upright position.

[0051] According to this embodiment, the axis 12c of the rotating shaft 12 extends in the left-right direction of the vehicle, and the axis 43c of the swing shaft 43 of the snatch lock 41 extends in the up-down direction of the vehicle (see FIG. 3). The hook 44 of the snatch lock 41 can swing in the front-rear direction of the vehicle. The striker 32, which rotates in the front-rear direction of the vehicle as the rotating shaft 12 rotates, can be satisfactorily engaged with the snatch lock 41.

[0052] According to this embodiment, a stopper 52 is provided on the side edge of the trash inlet 6 of the trash bin 5 (see FIG. 4). When an operator rotates the trash guide plate 10 from the laid-down position to the upright position, the end of the trash guide plate 10 hits the stopper 52, preventing the trash guide plate 10 from rotating beyond the upright position. This prevents excessive force from being applied to the rotating shaft holding mechanism 20.

[0053] According to this embodiment, the tailgate 7 is not provided with a protrusion that prevents the trash guide plate 10 from falling backward by hitting the trash guide plate 10. As shown in FIG. 2, when the tailgate 7 is closed and the trash guide plate 10 is in the upright position, the tailgate 7 and the trash guide plate 10 do not overlap when viewed from the rear of the vehicle. Therefore, even if the trash guide plate 10 is rotated with the tailgate 7 closed, the trash guide plate 10 does not interfere with the tailgate 7. The trash guide plate 10 can be opened and closed not only when the tailgate 7 is open, but also when the tailgate 7 is closed. Since the order of opening and closing the tailgate 7 and the trash guide plate 10 is not limited, the worker's work is made easier.

[0054] Second embodiment Next, a second embodiment will be described with reference to Figures 10 to 17. In the following description, members and parts similar to or corresponding to those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0055] Fig. 10 is a left side view of the refuse collection vehicle 1 according to the second embodiment. Fig. 11 is a rear view of the refuse collection vehicle 1 according to the second embodiment. As shown in Fig. 11, in the second embodiment as well, a tailgate 7 as an opening and closing door and a refuse guide plate 10 are attached to the refuse bin 5. The tailgate 7 opens and closes the upper part of the refuse inlet 6 by sliding up and down. The refuse guide plate 10 is rotatable around the axis 12c of the rotating shaft 12, and opens and closes the lower part of the refuse inlet 6 by rotating.

[0056] The configuration of the rotating shaft holding mechanism 20 is different between the first embodiment and the second embodiment. Figures 12 and 14 are a partial back view and a partial side view, respectively, of the rear part of the garbage collection vehicle 1 when the garbage guide plate 10 is in the upright position. Figures 13 and 15 are a partial back view and a partial side view, respectively, of the rear part of the garbage collection vehicle 1 when the garbage guide plate 10 is in the laid-down position. Figure 16 is a plan view of the rotating shaft holding mechanism 20 when the garbage guide plate 10 is in the upright position. Figure 17 is a plan view of the rotating shaft holding mechanism 20 when the garbage guide plate 10 is in the laid-down position.

[0057] In this embodiment, the rotating shaft holding mechanism 20 also has an engaging member 30 connected to the rotating shaft 12 and a holding member 40 that holds the engaging member 30 when the garbage guide plate 10 is in the upright position.

[0058] 15, the engagement member 30 has an arm member 31 connected to the rotating shaft 12, and a striker 32 provided on the arm member 31. In this embodiment, the striker 32 is formed in a straight rod shape. However, even in this embodiment, the shapes of the arm member 31 and the striker 32 are not particularly limited.

[0059] In this embodiment, the holding member 40 is also configured by a snatch lock 41 (see FIG. 9). As shown in FIG. 14, in this embodiment, the snatch lock 41 is disposed in such a position that the axis 43c of the swing shaft 43 extends in the vehicle front-rear direction. As shown in FIG. 12, a bracket 55A is fixed to the side wall 9 of the garbage bin 5 by a bolt 56. A bracket 55B is fixed to the bracket 55A by a bolt 57. The snatch lock 41 is fixed to the bracket 55B. The snatch lock 41 is attached to the garbage bin 5 via the bracket 55A and the bracket 55B. The bracket 55A and the bracket 55B form a part of the holding member 40. The holding member 40 is disposed inside the corner bumper 16.

[0060] As shown in FIG. 14, when the trash guide plate 10 is in the upright position, the arm member 31 of the engagement member 30 extends backward. As shown in FIG. 15, when the trash guide plate 10 is in the collapsed position, the arm member 31 of the engagement member 30 extends upward. In this embodiment, when the trash guide plate 10 is in the collapsed position, a part of the engagement member 30 is located above the corner bumper 16 and outside the corner bumper 16. In addition, a box 18 may be provided above the corner bumper 16 to cover the part of the engagement member 30 located outside the corner bumper 16 when the trash guide plate 10 is in the collapsed position. This makes it possible to protect the engagement member 30 regardless of the position of the trash guide plate 10, and to prevent mud and the like from adhering to the engagement member 30 from the outside.

[0061] In this embodiment, when the trash guide plate 10 is in the upright position, the striker 32 of the engagement member 30 engages with the hook 44 of the snatch lock 41 and is locked by the snatch lock 41 (see FIG. 14). When the operator pulls the upper edge of the trash guide plate 10 backward, the hook 44 rotates from the lock position to the unlock position, and the striker 32 disengages from the hook groove 44a, and the striker 32 rotates around the axis 12c of the rotating shaft 12 until the trash guide plate 10 reaches the down position. When the trash guide plate 10 reaches the down position, the trash guide plate 10 is supported by the support member 51 (see FIG. 15). In this way, the trash guide plate 10 rotates from the upright position to the down position, and the lower part of the trash inlet 6 is opened.

[0062] When closing the trash guide plate 10, the worker pushes the upper edge of the trash guide plate 10 forward. Then, the striker 32 rotates counterclockwise in FIG. 15 around the axis 12c of the rotating shaft 12. Just before the trash guide plate 10 reaches the standing position, the striker 32 engages with the hook groove 44a of the snatch lock 41, and the hook 44 is pushed by the striker 32 and rotates from the unlocked position to the locked position. When the hook 44 reaches the locked position, the striker 32 is locked by the snatch lock 41. This holds the trash guide plate 10 in the standing position (see FIG. 14).

[0063] According to the second embodiment, when the trash guide plate 10 moves to the upright position, the striker 32 moves downward in the vertical direction of the vehicle (see FIG. 14). The axis 43c of the swing shaft 43 of the snatch lock 41 extends in the front-rear direction of the vehicle. The hook 44 of the snatch lock 41 can swing in the vertical direction of the vehicle. Therefore, the striker 32, which rotates in the vertical direction of the vehicle as the rotating shaft 12 rotates, can be satisfactorily engaged with the snatch lock 41.

[0064] In the second embodiment, the same effects as those of the first embodiment can be obtained.

[0065] Although two embodiments of the present invention have been described above, the above embodiments are merely examples, and the present invention can be embodied in various other forms. Next, other embodiments will be briefly described.

[0066] The opening and closing door that opens and closes a part of the trash inlet 6 is not limited to the tailgate 7 that slides up and down. The opening and closing door may be, for example, a door that rotates around the upper edge.

[0067] The trash guide plate 10 does not necessarily have to be configured to rotate around the lower edge portion. The trash guide plate 10 may be configured to rotate around a portion slightly above the lower edge portion, for example.

[0068] The upright position of the trash guide plate 10 may be a position where the trash guide plate 10 extends vertically, or may be a position where the trash guide plate 10 is slightly tilted forward or backward from the vertical. The laid-down position of the trash guide plate 10 may be a position where the trash guide plate 10 extends horizontally, or may be a position where the trash guide plate 10 is slightly tilted upward or backward from the horizontal.

[0069] A part or the whole of the rotating shaft holding mechanism 20 may be disposed inside the corner bumper 16, but it does not have to be disposed inside the corner bumper 16. A part or the whole of the holding member 40 may be disposed outside the corner bumper 16.

[0070] The axis 43c of the swing shaft 43 of the snatch lock 41 may extend in a direction inclined from the vertical direction of the vehicle, or in a direction inclined from the front-rear direction of the vehicle. The axis 43c of the swing shaft 43 of the snatch lock 41 may extend in the left-right direction of the vehicle, or in a direction inclined from the left-right direction of the vehicle. In addition, the holding member 40 does not have to have the snatch lock 41. The holding member 40 may have another mechanism capable of engaging with the engaging member 30.

[0071] The location of the stopper 52 is not limited to the side edge of the trash inlet 6. The location of the stopper 52 is not particularly limited. Moreover, the stopper 52 is not necessarily required. [Explanation of symbols]

[0072] 1. Refuse collection truck 5 Garbage disposal box 6 Garbage inlet 7 Tailgate (opening door) 10. Garbage Information Board 12 Rotation axis 16 Corner bumper 20 Rotational axis holding mechanism 30 Engagement member 31 Arm parts 32 Striker 40 Retaining member 41 Snatchlock 43 Swing Axis 44 Hook 52 Stopper

Claims

1. A trash bin having a trash inlet opening at the rear; an opening / closing door attached to the trash bin for opening and closing a part of the trash bin opening; A trash guide plate attached to the trash bin, disposed below the opening and closing door, and configured to open and close a lower portion of the trash bin that is lower than the part of the trash opening; A rotation shaft extending laterally from the trash guide plate; a rotating shaft support member that rotatably supports the rotating shaft, The trash guide plate is rotatable between an upright position for closing the lower portion of the trash inlet and a downright position for opening the lower portion of the trash inlet; a rotating shaft holding mechanism for holding the rotating shaft when the trash guide plate is in the upright position; The rotating shaft holding mechanism includes: an engagement member connected to the rotating shaft; a holding member that engages with the engaging member and holds the engaging member when the garbage guide plate is in the upright position, The engagement member includes an arm member connected to the rotation shaft and a striker provided on the arm member, the retaining member is provided with a snatch lock having a hook engageable with the striker, a pivot shaft supporting the hook so as to be pivotable between a locked position and an unlocked position, and a spring biasing the hook, the spring is configured to apply a biasing force to the hook in the left-right direction of the vehicle, and when the hook is in the locked position, to bias the hook toward the locked position from a neutral position where the biasing force that swings the hook is zero, and when the hook is in the unlocked position, to bias the hook toward the unlocked position from the neutral position, This garbage collection vehicle is configured so that when the garbage guide plate in the upright position is pulled rearward in the fore-and-aft direction of the vehicle, the hook rotates from a locked position to an unlocked position against the spring force, thereby releasing the engagement between the engaging member and the retaining member.

2. A corner bumper is provided on the side of the trash guide plate, 2. The refuse collection vehicle according to claim 1, wherein at least a portion of the retaining member is disposed inside the corner bumper.

3. The axis of the rotating shaft extends in the left-right direction of the vehicle, 3. The refuse collection vehicle according to claim 1, wherein an axis of the pivot shaft extends in a vertical direction of the vehicle.

4. The axis of the rotating shaft extends in the left-right direction of the vehicle, 3. The refuse collection vehicle according to claim 1, wherein the axis of the pivot shaft extends in a front-rear direction of the vehicle.

5. A garbage collection vehicle as described in any one of claims 1 to 4, further comprising a stopper provided on a side edge of the garbage inlet of the garbage box, the stopper abutting the garbage guide plate rotated from the laid-down position toward the upright position to regulate the rotation of the garbage guide plate.

6. The garbage collection vehicle according to any one of claims 1 to 5, wherein when the opening and closing door is closed and the garbage guide plate is in the upright position, the opening and closing door and the garbage guide plate do not overlap when viewed from the rear of the vehicle.

Images