JP4940471B2 - Garbage truck with emergency stop - Google Patents

Description

  The present invention relates to a garbage collection vehicle including an emergency stop device that urgently stops the operation of a dust pushing device.

  Conventionally, a dust collection box mounted on a vehicle body and having a rear opening, a dust input box provided on the rear surface of the rear opening, and a dust input box provided in the dust input box, from the input of the dust input box 2. Description of the Related Art There is a known dust collection vehicle including a dust pushing device for pushing charged dust into a dust collection box. In such a garbage collection vehicle, an emergency stop device for urgently stopping the operation of the dust pushing device is provided in order to prevent an operator from accidentally getting caught in the dust pushing device when the dust is thrown from the loading port. It has been known.

For example, in the garbage collection vehicle of Patent Document 1, an emergency stop detection unit for urgently stopping the operation of the dust pushing device and an emergency stop unit for operating the emergency stop detection unit are provided at the rear of the dust box, and the emergency stop unit In addition, an operating means that can be selectively locked to a use position that protrudes longer than the input port of the dust input box and a storage position that is stored under the input port is provided to be movable in the front-rear direction. When the operation means is in the use position and the storage position, the emergency stop detection unit is in an off state, and when the operation means is moved forward from the use position, the emergency stop detection unit is turned on by operating the emergency stop means. Thus, the dust pushing device is stopped in an emergency.
JP 2005-67745 A

  However, in the garbage collection vehicle equipped with the emergency stop device of Patent Document 1, it is necessary to switch the position of the operation means between the storage position and the use position, and the switching operation is troublesome.

  In addition, since the operating means is not perpendicular to the traveling surface, the reflecting portion cannot be attached even though it occupies a wide area on the rear surface of the garbage truck.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an emergency stop device easily and safely in a garbage collection vehicle equipped with an emergency stop device that urgently stops the operation of a dust pushing device. It is to be able to operate and to make effective use of the rear space.

  In order to achieve the above object, according to the present invention, the emergency stop operation member is provided with a reflection portion, and the lower end side thereof is bulged rearward.

  Specifically, in the first invention, a dust collecting box mounted on the vehicle body and having a rear opening, a dust throwing box provided on the rear surface of the rear opening, and a dust throwing box provided in the dust throwing box, The present invention is directed to a dust collection vehicle including a dust pushing device that pushes the dust thrown into the dust collecting box from the loading port of the dust throwing box and an emergency stop device that urgently stops the operation of the dust pushing device.

And the emergency stop device is
A plate-like emergency stop operation member that is supported at the lower part of the input port of the dust input box so as to be able to swing back and forth around the upper side, extends in the vehicle width direction, and has a lower end side bulging backward,
An emergency stop detector for detecting the operation of the emergency stop operating member and urgently stopping the operation of the dust pushing device;
The emergency stop operation member, have a reflective portion above the surface of the bulging lower end, by a biasing means provided below the inlet, is substantially perpendicular to held against the running surface, that in an emergency when the lower end side is operated by displaced forward against the urging force of the urging means, the emergency stop detection unit that is configured to react.

According to the above configuration, since the plate-like emergency stop operation member extending in the vehicle width direction has the reflecting portion on the upper surface on the lower end side, the space on the rear surface of the garbage truck is effectively used, Since a large reflection part can be provided, it leads to prevention of rear-end collision accidents. In addition, the operator can easily push the bulged portion below the emergency stop operation member with his / her foot to cause the emergency stop detection unit to react. In addition, since the emergency stop operation member is held substantially perpendicular to the traveling surface by the urging means, the rear-end collision prevention effect by the reflecting portion is easily maintained. On the other hand, in an emergency, the emergency stop detection unit can be made to react easily by swinging the emergency stop operation member forward against the biasing means. Furthermore, since the emergency stop operation member is appropriately biased by the biasing means, the emergency stop operation member is not shaken by vibration or the like, and the emergency stop detection unit is not erroneously reacted.

In the second invention, in the first invention,
A receiving frame that can be raised and lowered between a use position protruding rearward and a stowed storage position is provided at the lower edge of the input slot of the dust input box.

According to said structure, even if a receiving frame protrudes back in a use position, an operator can push the bulging part below an emergency stop operation member with a leg | foot easily, and can make an emergency stop detection part react. .

As described above, according to the first aspect of the present invention, the reflective portion is provided above the bulging portion of the plate-like emergency stop operation member , thereby effectively utilizing the space on the rear surface of the garbage truck. A rear-end collision can be effectively prevented. Further, since the lower side of the emergency stop operation member is bulged rearward, the operator can easily and safely operate the emergency stop operation member with his / her foot to react the emergency stop detection unit. Accidents caught in the dust pushing device can be reliably prevented. In addition, since the emergency stop operation member is held substantially perpendicular to the traveling surface by the urging means, it is easy to see the reflecting portion and the rear-end collision accident can be reliably prevented with a simple structure. Further, by operating the emergency stop operating member against the biasing means and reacting the emergency stop detecting unit, the emergency stop operating member can be operated extremely easily and safely while preventing malfunction. .

According to the second aspect of the present invention, the operator can easily press the bulged portion below the emergency stop operation member with his / her foot, so that the use position and the storage position are provided at the lower edge of the input port of the dust input box. Even if the receiving frame that can be raised and lowered is provided, the emergency stop detection unit can be easily reacted to prevent the operator from being caught in the dust pushing device .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

-Configuration of garbage truck with emergency stop device-
FIG. 2 shows a garbage collection vehicle 1 equipped with an emergency stop device 30 according to an embodiment of the present invention. On the vehicle body 2 of the garbage collection vehicle 1, a garbage collection box 4 having a rear opening 3 is dumped rearward. It is mounted as possible. On the rear surface of the rear opening 3 of the dust collecting box 4, a dust throwing box 7 is provided so as to be pivotable back and forth about a pivot shaft 8. As shown in FIGS. 3 and 4, a rectangular charging port 7 a is provided on the rear surface of the dust charging box 7 so as to be opened and closed by a back cover 9 that is slidable up and down.

  A dust pushing device 10 is provided in the dust throwing box 7 to push the dust thrown from the loading port 7 a into the dust collecting box 4. The dust pushing device 10 includes a pushing plate 11 that is pivotally supported on the upper side so as to be swingable back and forth. The pushing plate 11 extends left and right, and a cylinder rod 12a of a swing cylinder 12 whose base end side is pivotally supported by a rotating shaft 8 at the upper part of the dust box 7 is rotatably connected to an upper end thereof. The pushing plate 11 is configured to be tilted about a swing shaft 13 fixed to the dust box 7 in accordance with the expansion and contraction of the swing cylinder 12. Although not shown, the garbage truck 1 is provided with rotating means such as a hydraulic motor, and a drive shaft 14 driven by the rotating means is provided below the pushing plate 11. The drive shaft 14 is rotatably supported at one end in the vertical direction of a plate-like rotating plate 15 extending in the left-right direction.

  A partition plate 16 that partitions the upper side of the dust input box 7 and the lower side of the swing shaft 13 of the press plate 11 is provided in front of the press plate 11 in the dust input box 7. A tilting cylinder 17 is connected to the rear end side of the partition plate 16 to tilt the dust throwing box 7 and open and close the rear opening 3 by the dust throwing box 7.

  As shown in FIG. 1, a cross frame 18 extending in the left-right direction is provided at the lower edge portion of the input port 7 a of the dust input box 7. Above the cross frame 18, a plate-shaped receiving frame 19 is provided so as to be undulated at a vertical storage position (indicated by a two-dot chain line) and a use position (indicated by a solid line) protruding rearward. A receiving frame support portion 21 is provided on the rear surface of the cross frame 18 so as to protrude rearward with a space left and right. The receiving frame 19 is tilted rearward at the use position, and the lower surface is supported by the receiving frame support portion 21 so that the receiving frame 19 is held in the horizontal position. In the stowed storage position, the back cover 9 can be tightened to the lower limit.

  With this configuration, the input port 7a of the dust input box 7 is opened, the receiving frame 19 is set to the use position, and the dust is slid directly on the receiving frame 19 or is thrown upward, and the rotating plate 15 is rotated upward. It is configured to lift and push the lifted dust into the dust collecting box 4 by swinging the pushing plate 11 forward.

  As shown in FIG. 5, the refuse collection vehicle 1 further includes an emergency stop device 30 that urgently stops the operation of the dust pushing device 10. On the rear surface of the cross frame 18, a pair of operation member support brackets 31 protruding rearward are provided. The emergency stop device 30 includes an emergency stop operation member 32 pivotally supported by the operation member support bracket 31 so as to be swingable back and forth. The emergency stop operation member 32 is a plate-like member extending in the vehicle width direction, and an operation portion 32a bulging rearward is formed on the lower end side thereof. On both left and right ends of the emergency stop operation member 32, a pin attachment portion 32 b for reinforcement and shaft support that protrudes forward is formed. The emergency stop operating member 32 is pivotally supported around the swing pin 33 by inserting the swing pin 33 extending in the left and right direction into the upper side of the pin attachment portion 32b and the operation member support bracket 31.

  The left and right middle and upper and lower middle portions of the emergency stop operation member 32 are connected to a biasing means 34 provided at the left and right center below the insertion port 7a. That is, a biasing means mounting bracket 35 made of angle steel or the like is provided on the lower surface of the cross frame 18, and the biasing means 34 is attached to the biasing means mounting bracket 35. The urging means 34 includes a rod 37 that is slidable back and forth with a retaining nut 36 fastened with the proximal end inserted in the urging means mounting bracket 35, and a washer 37a fixed to the rod 37. And a compression spring 38 provided between the rear surface of the biasing means mounting bracket 35. The tip 37b of the rod 37 is bent and is rotatably connected to a connecting member 39 provided on the front surface of the emergency stop operating member 32. As a result, the emergency stop operating member 32 is held so as to be substantially perpendicular to the traveling surface with the free length of the compression spring 38.

  The emergency stop device 30 further includes an emergency stop detection unit 40 that detects that the emergency stop operation member 32 has been operated and pushed forward to stop the operation of the dust pushing device 10 urgently. For example, the emergency stop detection unit 40 includes a non-contact type proximity sensor and is configured to be interlocked with the urging means 34. As shown in FIG. 6, the operation unit 32a of the emergency stop operation member 32 is operated in an emergency. Then, the emergency stop operation member 32 swings forward against the urging force of the urging means 34, and the detected portion 41 projecting from the back surface of the emergency stop operation member 32 moves forward, and the emergency stop is performed. The sensor unit 40a of the detection unit 40 is configured to react. The emergency stop detection unit 40 is connected to a controller (not shown), and is configured such that when the emergency stop detection unit 40 reacts, the dust pushing device 10 is emergency stopped.

  Further, a rectangular reflecting portion 42 that is long on the left and right is attached by screws 43 to most of the emergency stop operating member 32 except for the operating portion 32a.

-Operation-
Next, the operation of the emergency stop device 30 according to the present embodiment will be described.

  In order to collect the dust in the dust collection box 4, first, the input port 7a of the dust input box 7 is opened, and the receiving frame 19 is tilted rearward to a horizontal use position.

  Next, the dust is thrown into the dust box 7 while sliding on the receiving frame 19 or lifted upward by the rotating rotating plate 15. The lifted dust is pushed into the dust collecting box 4 by swinging the pushing plate 11 forward.

  In such a dust collection operation, the worker approaches the input port 7a and throws in the dust, so that the worker may be caught in the rotating plate 15. In such a case, the operator pushes and operates the operation part 32a of the emergency stop operation member 32 with his / her knee or the like. At this time, even if the receiving frame 19 protrudes rearward, the operation portion 32a bulges rearward, so that the operation is easy.

  By pressing the operating portion 32a in this manner, the emergency stop operating member 32 is swung forward about the swing pin 33 against the biasing means 34 as shown in FIG. Reacts and the refuse pushing-in device 10 stops urgently.

  On the other hand, when the vehicle is running or stopped, the emergency stop operating member 32 is held substantially perpendicular to the running surface by the urging means 34, as shown in FIG. In addition, the rear-end collision prevention effect by the reflecting portion 42 can be easily maintained.

-Effect of the embodiment-
Therefore, according to the refuse collection vehicle 1 provided with the emergency stop device 30 according to the present embodiment, by providing the emergency stop operation member 32 with the reflecting portion 42, the space on the rear surface of the dust collection vehicle 1 is effectively used. The rear-end collision can be effectively prevented. Further, since the lower side of the emergency stop operation member 32 bulges backward, the operator can easily and safely operate the emergency stop operation member 32 with the foot to cause the emergency stop detection unit 40 to react. It is possible to reliably prevent an accident in which an operator is caught in the dust pushing device 10.

  According to the above embodiment, the operator can easily press the operation portion 32a below the emergency stop operation member 32 with his / her foot, so that the use position and the storage are stored at the lower edge portion of the input port 7a of the dust input box 7. Even if the receiving frame 19 that can be raised and lowered between the positions is provided, the emergency stop detection unit 40 can be easily reacted to prevent an operator from being involved in the dust pushing device 10 reliably.

  According to the above-described embodiment, the emergency stop operation member 32 is held substantially perpendicular to the traveling surface by the urging means 34, thereby making it easy to see the reflecting portion 42 and reliably preventing a rear-end collision with a simple structure. Can do. Further, the emergency stop operation member 32 is operated against the biasing means to cause the emergency stop detection unit 40 to react, so that the emergency stop operation member 32 is extremely easily and safely prevented while preventing malfunction due to vibration. Can be operated.

  According to the above-described embodiment, even if the dust pushing device 10 is a rotary type that requires the receiving frame 19, the lower end side of the emergency stop operation member 32 is bulged rearward so that the receiving frame 19 Regardless of the presence, it is easy to operate the emergency stop operation member 32, and it is possible to easily and safely prevent an accident.

  According to the embodiment, by providing the reflecting portion 42 substantially perpendicular to the running surface, the reflecting portion 42 can be easily seen and a rear-end collision accident can be reliably prevented with a simple structure.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above-described embodiment, the dust pushing device 10 is a rotary type, but the sliding plate that is slidable in the vertical direction by the expansion and contraction operation of the swing cylinder and the rocker provided at the lower end of the sliding plate. A compression plate that is swingable in the longitudinal direction of the vehicle body by an expansion and contraction operation of the moving cylinder may be provided.

  In the above embodiment, the emergency stop detection unit 40 is composed of a proximity sensor, but may be composed of an optical sensor, a contact limit switch, or the like.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

It is the II sectional view taken on the line of FIG. 5 which expands and shows the emergency stop apparatus concerning embodiment of this invention. It is a side view which shows the whole garbage collection vehicle. It is a side sectional view showing the inside of a dust box. It is the perspective view which looked at the garbage collection vehicle from back. It is the rear view which looked at the emergency stop apparatus from back. FIG. 2 is a view corresponding to FIG. 1 when an operation unit of an emergency stop operation member is operated.

DESCRIPTION OF SYMBOLS 1 Dust collection vehicle 2 Car body 3 Back opening part 4 Dust collection box 7 Dust input box 7a Input port 10 Dust pushing-in device 11 Pushing plate 15 Rotating plate 19 Receiving frame 21 Frame support part 30 Emergency stop device 32 Emergency stop operating member 34 Energizing Means 40 Emergency stop detector 41 Switch pressing member 42 Reflector

Claims (2)

A garbage collection box mounted on the vehicle body and having a rear opening;
A dust input box provided on the rear surface of the rear opening;
A dust pushing device that is provided in the dust throwing box and pushes the dust thrown from the throwing port of the dust throwing box into the dust collecting box;
A garbage collector equipped with an emergency stop device for urgently stopping the operation of the dust pushing device,
The emergency stop device is
A plate-like emergency stop operation member that is supported at the lower part of the input port of the dust input box so as to be able to swing back and forth around the upper side, extends in the vehicle width direction, and has a lower end side bulging backward,
An emergency stop detector for detecting the operation of the emergency stop operating member and urgently stopping the operation of the dust pushing device;
The emergency stop operation member, have a reflective portion above the surface of the bulging lower end, by a biasing means provided below the inlet, is substantially perpendicular to held against the running surface, that in an emergency when the lower end side is operated by displaced forward against the urging force of the urging means, with an emergency stop device the emergency stop detection unit is characterized that you have been configured to react Garbage truck. In a garbage truck equipped with the emergency stop device according to claim 1,
Provided with an emergency stop device characterized in that a receiving frame that can be raised and lowered between a use position protruding backward and a stowed storage position is provided at the lower edge of the input port of the dust input box Garbage truck.

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