JP2019018978A - Garbage collection vehicle - Google Patents

Abstract

To provide a garbage collection vehicle, capable of regulating reliably the shift from a specified position of a cover member for opening/closing a charging port caused by its dead weight or a spring force etc. when an operator moves the cover member to the specified position to release his/her hand therefrom.SOLUTION: A garbage collection vehicle 1 comprises a locking device 30 for regulating/deregulating the transfer from a lower position and an upper position of a cover member 20 for opening/closing a charging port 3a. The locking device 30 has: a lower engaging part 33; an upper engaging part 34 disposed to project to the further inner side relative to the lower engaging part 33 in the vehicle width direction; and a releasing mechanism 50 for moving a locking pin 31 against an urging force of a spring 32 to a first releasing position where the engagement with the lower engaging part 33 is released, with a first operation from the outside. The first releasing position is disposed at the position where the outer end of the locking pin 31 in the vehicle width direction is located at the further inner side relative to the lower engaging part 33 in the vehicle width direction, and is located at the further outer side relative to the inner end of the upper engaging part 34 in the vehicle width direction and is disposed at the position where the outer end of the locking pin 31 in the vehicle width direction touches an inclined plane 34b of the upper engaging part 34 when the cover member 20 moves upwardly from the lower position.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a garbage truck.

  Generally, a garbage collection vehicle is provided with a cover member that opens and closes an input port of a dust input box. The cover member is provided so as to be slidable in the vertical direction at the rear end portion of the dust box, and a handle for sliding the cover member is provided on the rear surface of the cover member. When the handle is lifted and the cover member is slid to the upper position, the insertion port is opened, and when the handle is lowered and the cover member is slid to the lower position, the insertion port is closed.

  Such a garbage collection vehicle includes a lock device that restricts the cover member from sliding from the upper position to the lower side and restricts the cover member from sliding from the lower position to the upper side (for example, a patent). Reference 1). The lock device described in Patent Document 1 includes a lock pin that is attached to a cover member so as to freely advance and retreat in the vehicle width direction, a biasing member that always projects and biases the lock pin outward in the vehicle width direction, and a dust input A lower engaging part fixed to the lower part of the side wall of the box and an upper engaging part fixed to the upper part of the side wall of the dust throwing box are provided.

  When the cover member is slid to the upper position, the lock pin protrudes outward in the vehicle width direction by the urging force of the urging member and engages with the upper engagement portion, so that the cover member slides downward. To regulate. Further, when the cover member is slid to the lower position, the lock pin protrudes outward in the vehicle width direction by the urging force of the urging member and engages with the lower engagement portion, so that the cover member slides upward. To regulate.

  In Patent Document 1, in order to easily perform the operation of releasing the slide restriction of the cover member by the lock device, the slide restriction is released in conjunction with the operation of sliding the cover member by the handle. Specifically, the lock pin is connected to the handle via the transmission means, and the lock pin is resisted against the biasing force of the biasing member by rotating the handle upward or downward. It is designed to retract in the direction.

As a result, when the cover member is slid at the lower position by the lock device, when the handle is lifted and turned upward, the lock pin is retracted inward in the vehicle width direction via the transmission means. The slide restriction at the lower position of the member is released. The cover member is slid upward by further lifting the handle.
Similarly, when the cover member is regulated to slide in the upper position by the locking device, if the handle is lowered and rotated downward, the lock pin is retracted inward in the vehicle width direction via the transmission means. Then, the slide restriction at the upper position of the cover member is released. Further, the cover member slides downward by further lowering the handle.

JP 2016-216212 A

  In the conventional garbage collection vehicle, the handle is always lifted and rotated upward by the operator while the cover member is slid from the lower position to the upper position. It is held in a state retracted inward in the width direction. For this reason, when the cover member is slid to the upper position, if the hand is released from the handle and the lift is released, the lock pin protrudes outward from the retracted position by the urging force of the spring to the upper engagement portion. There is a problem that the cover member is lowered from the upper position by its own weight before the engagement.

  In addition, while the cover member is slid from the upper position to the lower position, the handle is always lifted by the operator and held in a state of rotating downward, so that the lock pin is retracted inward in the vehicle width direction. Held in. For this reason, when the cover member is urged so that it always slides upward due to spring force, etc., when the cover member is slid to the lower position, if the release is released by releasing the handle, There is a problem that the cover member is lifted from the lower position by the spring force until the pin protrudes outward in the vehicle width direction from the retracted position by the biasing force of the biasing member and engages with the lower engagement portion. It was.

  The present invention has been made in view of such circumstances, and when the cover member that opens and closes the insertion port is moved to a predetermined position and then released, the cover member is caused by its own weight or by a spring force or the like. An object of the present invention is to provide a garbage truck that can reliably control movement from a position.

  (1) A garbage collection vehicle according to the present invention includes a dust container, a dust container box disposed behind the dust container box, into which dust is introduced, and a rear end portion of the dust container box. A cover member provided to be movable up and down between a lower position for closing the charging port and an upper position for opening the charging port, and a cover member for operating the vertical movement of the cover member. And a lock device that restricts and releases the movement of the cover member from the lower position to the upper side, and restricts and releases the movement of the cover member from the upper position to the lower side. The lock device includes a lock pin provided in the cover member so as to be movable in the vehicle width direction, a biasing member that constantly biases the lock pin toward the vehicle width direction outside of the cover member, and the dust When the cover member is in the lower position, the lock pin is engaged with the lock pin urged by the urging member when the cover pin is in the lower position. A lower engagement portion capable of restricting movement to the upper side, and provided at the side end portion in the vehicle width direction of the input port in the dust input box so as to protrude inward in the vehicle width direction from the lower engagement portion, An upper engaging portion that engages with the lock pin biased by the biasing member when the cover member is in the upper position and restricts the lock pin from moving downward; By the first operation, the lock pin is moved to the first release position where the engagement with the lower engagement portion is released against the urging force of the urging member, and by the second operation from the outside The upper engagement of the lock pin against the biasing force of the biasing member And a release mechanism that moves to a second release position where the engagement with the lock pin is released, and the upper engagement portion is formed with an engagement surface that engages with the lock pin, and the engagement surface An inclined surface that is inclined so as to increase in height from the outer side in the vehicle width direction toward the inner end in the vehicle width direction is formed below the first release position, and the outer end in the vehicle width direction of the lock pin is It is located on the inner side in the vehicle width direction with respect to the lower engagement portion, is located on the outer side in the vehicle width direction with respect to the inner end in the vehicle width direction of the upper engagement portion, and the cover member is moved upward from the lower position. Sometimes, the outer end of the lock pin in the vehicle width direction is set to a position where the lock pin comes into contact with the inclined surface of the upper engagement portion.

  According to the present invention, when the cover member is in the lower position where the opening is closed, the lock pin of the locking device is moved to the first release position against the urging force of the urging member by the first operation. By doing so, the engagement between the lock pin and the lower engagement portion is released. When the cover member is moved from the lower position to the upper side by the handle in a state where the engagement is released, the outer end in the vehicle width direction of the lock pin comes into contact with the inclined surface of the upper engagement portion. When the cover member is further moved upward from this state, the outer end in the vehicle width direction of the lock pin moves upward in the vehicle width direction along the inclined surface against the urging force of the urging member. Get over the joint. Thus, when the cover member reaches the upper position, the lock pin is automatically moved outward in the vehicle width direction by the urging force of the urging member and engaged with the engagement surface of the upper engagement portion.

Therefore, even if the hand is released from the handle with the cover member moved to the upper position, the lock pin is already engaged with the upper engagement portion to restrict the lower movement of the cover member. It is possible to reliably prevent the member from moving from the upper position to the lower side by its own weight.
Further, when the cover member is in the upper position where the opening is opened, the lock pin of the lock device is moved to the second release position against the urging force of the urging member by the second operation. The engagement between the lock pin and the upper engagement portion is released. Accordingly, the cover member can be moved from the upper position to the lower side.

  (2) The refuse collection vehicle of the present invention includes a dust storage box, a dust supply box disposed at the rear of the dust storage box and into which dust is input, and a rear end portion of the dust supply box. A cover member provided to be movable up and down between a lower position for closing the charging port and an upper position for opening the charging port, and a cover member for operating the vertical movement of the cover member. A handle, an auxiliary member that constantly urges the cover member upward, and restricting and releasing the movement of the cover member upward from the lower position, and the cover member moving downward from the upper position. And a lock device for restricting and releasing the movement to the side, wherein the lock device is provided with a lock pin that is movable in the vehicle width direction in the cover member, and the lock pin is always covered by the cover. An urging member for urging toward the vehicle width direction outer side of the material, provided at a side end portion in the vehicle width direction of the input port in the dust box, and when the cover member is in the upper position, An upper engaging portion that can be engaged with the lock pin urged by the urging member to restrict the lock pin from moving downward, and a side end in the vehicle width direction of the input port in the dust input box Is provided to protrude inward in the vehicle width direction from the upper engagement portion, and engages with the lock pin urged by the urging member when the cover member is in the lower position. A lower engaging portion that can restrict the pin from moving upward, and a first operation from the outside to engage the lock pin against the lower engaging portion against the biasing force of the biasing member. Move to the first release position to be released, and move forward by a second operation from the outside. A release mechanism that moves the lock pin to a second release position where the engagement with the upper engagement portion is released against the urging force of the urging member, and the lower engagement portion includes: An engagement surface with which the lock pin is engaged is formed, and an inclined surface is formed so that the height decreases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction above the engagement surface, The second release position is such that an outer end in the vehicle width direction of the lock pin is positioned on an inner side in the vehicle width direction than the upper engagement portion, and a vehicle width direction from the inner end in the vehicle width direction of the lower engagement portion. The lock pin is set at a position where the outer end in the vehicle width direction of the lock pin comes into contact with the inclined surface of the lower engagement portion when the cover member is moved from the upper position to the lower side. Yes.

  According to the present invention, when the cover member is in the upper position where the opening is opened, the lock pin of the locking device is moved to the second release position against the urging force of the urging member by the second operation. By doing so, the engagement between the lock pin and the upper engagement portion is released. Then, when the cover member is moved from the upper position to the lower side by the handle in a state where the engagement is released, the outer end in the vehicle width direction of the lock pin comes into contact with the inclined surface of the lower engagement portion. When the cover member is further moved downward from this state, the outer end in the vehicle width direction of the lock pin moves downward inward in the vehicle width along the inclined surface against the urging force of the urging member. Get over the engaging part. Accordingly, when the cover member reaches the lower position, the lock pin is automatically moved outward in the vehicle width direction by the urging force of the urging member and engaged with the engagement surface of the lower engagement portion.

Therefore, even if the cover member is moved to the lower position and the hand is released from the handle, the lock pin 31 is already engaged with the lower engagement portion to restrict the upward movement of the cover member. The member can be reliably prevented from moving upward from the lower position by the biasing force of the auxiliary member.
Further, when the cover member is in the lower position where the opening is closed, the lock pin of the locking device is moved to the first release position against the urging force of the urging member by the first operation. The engagement between the lock pin and the lower engagement portion is released. Thereby, the cover member can be moved from the lower position to the upper side.

  (3) In the refuse collection vehicle according to (1) or (2), the handle is configured to move upward when an operation of lifting the handle is performed to move the cover member upward, and the cover The cover member is provided so as to move up and down so as to move downward when an operation of lowering the handle is performed to move the member downward. It is preferable that the handle is connected to the handle so that the upward movement is the first operation and the downward movement of the handle is the second operation.

  In this case, when the operation of lifting the handle is performed to move the cover member in the lower position upward, the first operation of the release mechanism is performed, and the lock pin moves to the first release position. The engagement with the lower engagement portion is released. In addition, when an operation of lowering the handle to move the cover member in the upper position downward is performed, the second operation of the release mechanism is performed, and the lock pin moves to the second release position, thereby locking the lock member. The engagement between the pin and the upper engagement portion is released. As described above, since the first and second operations for releasing the lock pin are performed in conjunction with the operation of the handle for moving the cover member in the vertical direction, the first and second operations are easily performed. However, the movement of the cover member from the upper position or the lower position can be reliably restricted.

  According to the present invention, when the cover member that opens and closes the insertion port is moved to a predetermined position and then released, the cover member is reliably restricted from moving from the predetermined position by its own weight or by spring force or the like. be able to.

It is a sectional side view of the garbage truck which concerns on 1st Embodiment of this invention. It is the front view which looked at the garbage input box from the vehicle back. It is a side view of a dust box. It is the front view which looked at the cover member in a lower position from the front side. It is a figure which shows modifications, such as a lower engaging part and an upper engaging part. (A) is a front view of a handle, (b) is a bottom view of a handle. It is a side view of a handle. It is AA arrow sectional drawing of Fig.6 (a). It is BB arrow sectional drawing of FIG. It is C arrow line view of FIG. It is a figure which shows the state which rotated the arm of the cancellation | release mechanism downward. It is a figure which shows a motion of a lock pin when moving a cover member from a lower position to an upper side. It is a figure which shows the state which rotated the arm of the cancellation | release mechanism upwards. It is a figure which shows a motion of a lock pin when moving a cover member from an upper position to a lower side. It is sectional drawing which shows the releasing mechanism in the locking device of the garbage truck which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the cancellation | release mechanism of 2nd Embodiment. It is the front view which looked at the cover member in a lower position from the front side in the second embodiment. It is a figure which shows the state which rotated the arm of the cancellation | release mechanism in 2nd Embodiment. It is a figure which shows a motion of a lock pin when moving a cover member from a lower position to an upper side in 2nd Embodiment. It is a figure which shows the state which rotated the arm of the cancellation | release mechanism upward in 2nd Embodiment. It is a figure which shows a motion of a lock pin when moving a cover member from an upper position to a lower side in 2nd Embodiment.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[First Embodiment]
[overall structure]
FIG. 1 is a side sectional view showing a rear part of a garbage truck according to a first embodiment of the present invention. Hereinafter, in this specification, the front-rear direction of the garbage collection vehicle is referred to as “front-rear direction”, the vertical direction of the garbage collection vehicle is referred to as “up-down direction”, and the left-right direction of the dust collection vehicle viewed from the front or rear is referred to as “vehicle”. It is called “width direction”. Further, among the “vehicle width direction”, a direction from the central portion in the left-right direction of the garbage truck toward the right side or the left side is referred to as “vehicle width direction outer side”, and the right-hand side or the left side in the left-right direction toward the central portion. The direction is referred to as “inward in the vehicle width direction”.

  The garbage collection vehicle 1 according to the present embodiment includes a dust container 2 mounted on a vehicle body 1a, and a dust input box 3 arranged behind the dust container 2 and provided continuously. On the rear surface of the dust container 2, an opening 2 a for loading dust into the dust container 2 is formed. The dust input box 3 has an input port 3a through which dust is input.

  The dust throwing box 3 can be pivoted up and down around a fulcrum P provided at the upper part, and can thereby be opened and closed with respect to the dust container 2. That is, the dust box 3 closes the opening 2a of the dust container 2 at the position shown in FIG. 1, opens the opening 2a at a position rotated upward (not shown), and disposes the dust in the dust container 2. Can be discharged.

  In the refuse input box 3, a loading device T capable of loading dust input from the input port 3a into the dust storage box 2 is provided. The loading device T of the present embodiment is a press type having a compression stroke in the dust loading operation. The loading device T includes a slider 5 and a pushing plate 7 that is rotatably attached to a lower end portion of the slider 5 via a pin 6. The slider 5 can move along the guide rails 4 provided on the left and right side walls 3 c of the dust box 3. Push cylinders 8 are attached between the side member 5 a of the slider 5 and the side wall 3 c of the dust input box 3 on both the left and right sides in the dust input box 3. A press cylinder 9 is attached between the side member 7 a of the pushing plate 7 and the side member 5 a of the slider 5.

  The loading device T operates as follows. First, from the state shown by the solid line in FIG. 1, the pressing plate 7 is rotated counterclockwise by the contraction operation of the press cylinder 9 to reverse the pressing plate 7 (reversing step). Next, the slider 5 and the pushing plate 7 are both moved obliquely downward by the contraction operation of the push cylinder 8 to compress the pushing plate 7 with the dust thrown from the loading port 3a (primary compression step). Then, the pushing plate 7 is rotated clockwise by the extension operation of the press cylinder 9 to perform secondary compression (secondary compression step).

  Next, the slider 5 and the pushing plate 7 are lifted obliquely forward by the extension operation of the push cylinder 8, and the compressed dust is pushed into the dust container 2 side (shown by a solid line from the state shown by the two-dot chain line in FIG. 1). Pushing process to move to a closed state). As described above, the loading device T sequentially performs the reversing process, the primary compression process, the secondary compression process, and the pushing process as one cycle, and the dust thrown into the dust throwing box 3 is passed through the opening 2a. 2 can be loaded.

  FIG. 2 is a front view of the dust box 3 as viewed from the rear of the vehicle. 1 and 2, the dust input box 3 is provided with a mounting table 10 below the input port 3a. The mounting table 10 is attached to the dust box 3 so as to be rotatable about a horizontal axis, and changes its posture between a standing posture (solid line position in FIG. 1) and a deployed posture (dotted line position in FIG. 1). be able to. That is, the mounting table 10 at the position of the solid line in FIG. 1 can be rotated downward (rearward) around its base end, and is rotated 90 degrees downward (see FIG. 1). Dash-dot line position).

  When the mounting table 10 is in the unfolded posture, the dust can be once placed on the mounting table 10 when the operator inputs the dust from the insertion port 3a, thereby improving the workability of throwing the dust. it can. The mounting table 10 is formed over the entire length of the insertion port 3a in the vehicle width direction. Thereby, the mounting table 10 will close the lower part of the insertion port 3a, if it becomes a standing posture.

[Cover member]
1 and 2, the garbage truck 1 further includes a cover member 20 for opening and closing the input port 3a of the dust input box 3, and a rail member 21 for guiding the cover member 20 to be slidable in the vertical direction. I have.

  The cover member 20 is formed over the entire length of the insertion port 3a in the vehicle width direction, and opens and closes the other part except the lower portion of the insertion port 3a, that is, the upper portion of the insertion port 3a above the mounting table 10 in the standing posture. Is. A handle 11 for sliding the cover member 20 in the vertical direction is provided at the center of the lower side of the rear surface of the cover member 20. Details of the handle 11 will be described later.

  The rail member 21 is provided on the side wall 3c of the garbage throwing box 3 so as to extend in the vertical direction along the side end of the throwing port 3a in the vehicle width direction. In addition, although illustration is abbreviate | omitted, the rail member 21 is provided in the left-right side wall 3c of the dust throwing-in box 3 along the both-sides edge part of the vehicle width direction of the insertion port 3a.

  Guide rollers (not shown) are rotatably provided at both ends of the cover member 20 in the vehicle width direction, and these guide rollers move in the vertical direction along the rail members 21. Yes. As a result, the cover member 20 is slidable in the vertical direction with respect to the dust box 3.

  FIG. 3 is a side view of the dust box 3. As shown in FIG. 3, when the mounting table 10 is in the standing posture, the cover member 20 can slide between the upper position (the two-dot chain line position in FIG. 3) and the lower position (the solid line position in FIG. 3). Has been. Therefore, as shown by the solid line in FIG. 3, the entire charging port 3a is closed by continuously arranging the cover member 20 slid to the lower position and the mounting table 10 in the upright position. . Then, from this closed state, as shown by a two-dot chain line in FIG. 3, the cover member 20 is slid to the upper position, and the mounting table 10 is set in the deployed posture (see FIG. 1), so that the entire insertion port 3 a is Opened.

  The rail member 21 is formed to extend downward from the upper end of the mounting table 10 in the standing posture. Thereby, although illustration is omitted, the cover member 20 can slide along the rail member 21 to the lowermost position below the lower position (solid line position in FIG. 3) when the mounting table 10 is in the deployed posture. It is said that. Thus, by making the cover member 20 into the lowest position, the entire insertion port 3a can be temporarily closed.

  The lower end portion of the arm member 24 is connected to the front end portion of the outer surface of the side wall 3c so as to be vertically slidable and vertically rotatable via a bracket 23 fixed to a substantially central portion in the vertical direction. The upper end portion of the arm member 24 is connected to the upper end portion of the cover member 20. Accordingly, when the cover member 20 slides in the vertical direction, the arm member 24 rotates in the vertical direction around the lower end portion while moving the lower end portion up and down.

  One end of an auxiliary member 25 such as a spring is connected to the lower end portion side of the arm member 24, and the other end of the auxiliary member 25 is connected to the upper end portion of the outer surface of the side wall 3c. As a result, the auxiliary member 25 urges the arm member 24 to always rotate upward. Therefore, the cover member 20 is urged so as to always slide upward between the upper position and the lowermost position by the urging force of the auxiliary member 25.

  At both ends of the auxiliary member 25, the arm member 24 and the side wall 3c are such that the urging force becomes the largest when the cover member 20 is at the lowermost position and the urging force becomes the smallest when the cover member 20 is at the upper position. Respectively. In addition, although illustration is abbreviate | omitted, the bracket 23, the arm member 24, and the rail member 21 are provided in each of the left and right side walls 3c of the dust box 3.

[Locking device]
FIG. 4 is a front view of the cover member 20 in the lower position as viewed from the front side (back side). The garbage truck 1 includes a lock device 30 that restricts and releases the sliding of the cover member 20 from the lower position to the upper side, and restricts and releases the sliding of the cover member 20 from the upper position to the lower side. ing. The lock device 30 includes a lock pin 31 and a spring (biasing member) 32 provided on the cover member 20, and a lower engagement portion 33 and an upper engagement portion 34 provided on the side wall 3 c of the dust box 3. ing.

  The lock pin 31 is attached to an attachment member 35 fixed to an end portion in the vehicle width direction on the front surface of the cover member 20 so as to be movable in the vehicle width direction. A spring 32 is inserted inside the lock pin 31 in the vehicle width direction, and the lock pin 31 is always urged outward in the vehicle width direction by the urging force of the spring 32. An end of a wire 62 of a release mechanism 50 described later is connected to the inner end of the lock pin 31 in the vehicle width direction. Note that the lock pin 31, the spring 32, and the attachment member 35 are provided at both ends of the cover member 20 in the vehicle width direction, although not shown.

  The lower engaging portion 33 engages with the lock pin 31 biased by the spring 32 when the cover member 20 is in the lower position, and restricts the lock pin 31 from moving upward. The lower engaging portion 33 of the present embodiment protrudes inward in the vehicle width direction and is fixed at the lower part of the inner surface of the side wall 3c (the side end portion of the insertion port 3a in the vehicle width direction).

  A lower surface of the lower engagement portion 33 is formed to extend in the horizontal direction, and serves as an engagement surface 33a with which the lock pin 31 biased by the spring 32 is engaged. When the lock pin 31 is engaged with the engagement surface 33a, the cover member 20 can be restricted from sliding upward from the lower position by the urging force of the auxiliary member 25 (see FIG. 3). An inclined surface 33 b is formed above the engagement surface 33 a of the lower engagement portion 33. The inclined surface 33b is inclined so that the height decreases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction.

  A regulating portion 36 that protrudes inward in the vehicle width direction is fixed to the inner side surface of the side wall 3c immediately below the lower engaging portion 33. The upper surface of the restricting portion 36 is formed to extend in the horizontal direction, and serves as an engagement surface 36a with which the lock pin 31 is engaged. By engaging the lock pin 31 with the engaging surface 36a, it is possible to restrict the cover member 20 from sliding further downward from the lower position. The restricting portion 36 of the present embodiment is formed in the same shape as the upper engaging portion 34 and is fixed so as to protrude inward in the vehicle width direction from the lower engaging portion 33.

  An inclined surface 36 b is formed below the engaging surface 36 a of the restricting portion 36. The inclined surface 36b is inclined so that its height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction. Thus, when the cover member 20 is slid from the lowest position to the lower position, the lock pin 31 abuts against the inclined surface 36b of the restricting portion 36, so that the inclined surface against the urging force of the spring 32 is applied. The vehicle moves inward in the vehicle width direction along 36b and gets over the restricting portion 36. Thereby, the lock pin 31 is engaged with the engagement surface 36a at the lower position. At that time, since the feel of the lock pin 31 engaging with the engagement surface 36a is transmitted to the operator's hand through the handle 11, the operator can easily grasp that the cover member 20 has reached the lower position. Can do.

  The upper engagement portion 34 is engaged with the lock pin 31 biased by the spring 32 and restricts the lock pin 31 from moving downward when the cover member 20 is in the upper position. . The upper engaging portion 34 of the present embodiment is fixed at the upper part of the inner side surface of the side wall 3c so as to protrude inward in the vehicle width direction from the lower engaging portion 33.

  The upper surface of the upper engagement portion 34 is formed to extend in the horizontal direction, and serves as an engagement surface 34 a with which the lock pin 31 biased by the spring 32 is engaged. When the lock pin 31 is engaged with the engagement surface 34a, the cover member 20 can be restricted from sliding from the upper position to the lower side by its own weight. An inclined surface 34 b is formed below the engaging surface 34 a of the upper engaging portion 34. The inclined surface 34b is inclined so that its height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction.

  An engaging portion 37 that protrudes inward in the vehicle width direction is fixed to the inner side surface of the side wall 3 c below the upper engaging portion 34. For example, when the short stature worker cannot slide the cover member 20 to the upper position, the engagement portion 37 is moved when the cover member 20 is slid to a height position slightly lower than the upper position. It engages with the lock pin 31 urged by the spring 32 and restricts the lock pin 31 from moving downward. The engaging portion 37 of the present embodiment is formed in the same shape as the upper engaging portion 34 and is fixed so as to protrude inward in the vehicle width direction from the lower engaging portion 33.

  The upper surface of the engagement portion 37 is formed to extend in the horizontal direction, and serves as an engagement surface 37a with which the lock pin 31 biased by the spring 32 is engaged. When the lock pin 31 is engaged with the engagement surface 37a, the cover member 20 can be prevented from sliding downward from the height position by its own weight. An inclined surface 37 b is formed below the engaging surface 37 a of the engaging portion 37. The inclined surface 37b is inclined so that the height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction.

  A restricting portion 38 that protrudes inward in the vehicle width direction is fixed to the inner side surface of the side wall 3 c immediately above the engaging portion 37. The lower surface of the restricting portion 38 is formed to extend in the horizontal direction, and serves as an engagement surface 38a with which the lock pin 31 is engaged. When the lock pin 31 is engaged with the engagement surface 38a, the cover member 20 can be prevented from sliding upward from the height position by the urging force of the spring 32 or the like.

  An inclined surface 38 b is formed above the engaging surface 38 a of the restricting portion 38. The inclined surface 38b is inclined such that the height decreases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction. The lower engagement portion 33, the upper engagement portion 34, the restriction portion 36, the engagement portion 37, and the restriction portion 38 are provided on the left and right side walls 3 c of the dust bin 3, although not shown. .

  FIG. 5 is a diagram illustrating a modification of the lower engagement portion 33, the upper engagement portion 34, the restriction portion 36, the engagement portion 37, and the restriction portion 38. The lower engagement portion 33 of the present modification is formed of an engagement hole 41 formed in the side wall 3c, and the upper side of the peripheral surface of the engagement hole 41 is an engagement surface 33a of the lower engagement portion 33. Yes. Thereby, when the lock pin 31 is inserted into the engagement hole 41 and engaged with the engagement surface 33a, the lock pin 31 can be restricted from moving upward.

  The restricting portion 36 of the present modification includes the engaging hole 41 and a raised portion 46 that is integrally formed so as to rise directly from the inner side surface of the side wall 3c to the inside in the vehicle width direction. The lower side of the peripheral surface of the engagement hole 41 and the upper surface of the raised portion 46 are the engagement surface 36 a of the restricting portion 36. Accordingly, the lock pin 31 is inserted into the engagement hole 41 and engaged with the engagement surface 36a, so that the lock pin 31 can be restricted from sliding downward.

  The upper engaging portion 34 of the present modification is integrally formed with an engaging hole 43 formed in the side wall 3c, and a protruding portion 42 formed directly below the inner side surface of the side wall 3c so as to protrude inward in the vehicle width direction. It consists of. The lower side of the peripheral surface of the engagement hole 43 and the upper surface of the raised portion 42 are the engagement surface 34 a of the upper engagement portion 34. Accordingly, the lock pin 31 is inserted into the engagement hole 43 and engaged with the engagement surface 34a, so that the lock pin 31 can be restricted from moving downward. An inclined surface 34b of the upper engaging portion 34 is formed below the raised portion 42 that is below the engaging surface 34a. The inclined surface 34b is inclined so that its height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction.

  The engaging portion 37 of the present modification includes an engaging hole 45 formed in the side wall 3c, and a raised portion 44 integrally formed so as to protrude from the inner side surface of the side wall 3c to the inside in the vehicle width direction immediately below the engaging hole 45. Consists of. The lower side of the peripheral surface of the engagement hole 45 and the upper surface of the raised portion 44 are the engagement surface 37 a of the engagement portion 37. Accordingly, the lock pin 31 is inserted into the engagement hole 45 and engaged with the engagement surface 37a, so that the lock pin 31 can be restricted from moving downward. An inclined surface 37b of the engaging portion 37 is formed below the raised portion 44 below the engaging surface 37a. The inclined surface 37b is inclined so that the height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction.

  The engaging hole 45 also serves as the restricting portion 38 of this modification, and the upper side of the peripheral surface of the engaging hole 45 is an engaging surface 38 a of the restricting portion 38. As a result, the lock pin 31 is inserted into the engagement hole 45 and engaged with the engagement surface 38a, so that the lock pin 31 can be prevented from sliding upward.

[handle]
FIG. 6A is a front view of the handle 11 for sliding the cover member 20 in the vertical direction, and FIG. 6B is a bottom view of the handle 11. FIG. 7 is a side view of the handle 11. 6 and 7, both end portions of the handle 11 in the vehicle width direction are connected to a pair of left and right pedestals 12 fixed to the rear surface of the cover member 20. Each pedestal 12 has a pedestal main body 12 a that protrudes rearward of the cover member 20 and a box portion 12 b that protrudes forward of the cover member 20.

  FIG. 8 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 8, the front side of the box portion 12b is open, and the opening is covered with a cover plate 12c. As a result, an internal space 12d sealed by the cover plate 12c is formed in the box portion 12b. A rotation bracket 13 is attached to the inside of the base body 12a in the vehicle width direction so as to be rotatable about the axis X. An end portion in the vehicle width direction of the handle 11 is fixed to the inner end portion of the rotating bracket 13 in the vehicle width direction via a connecting screw 14.

  Thereby, the handle 11 can be turned up and down together with the rotary bracket 13 around the axis X with respect to the base 12. Specifically, the handle 11 is rotatable between an upper rotation position indicated by a one-dot chain line in FIG. 7 and a lower rotation position indicated by a two-dot chain line in FIG. Then, when the hand is released from the handle 11 that has been rotated to the upper rotation position or the lower rotation position, the handle 11 rotates to a neutral position between the upper rotation position and the lower rotation position, and the neutral position thereof. It is designed to be held in position.

[Release mechanism]
The lock device 30 releases the engagement between the lock pin 31 and the lower engagement portion 33 and the engagement between the lock pin 31 and the upper engagement portion 34 (engagement portion 37) by rotating the handle 11. A release mechanism 50 is further provided. 9 is a cross-sectional view taken along line BB in FIG. FIG. 10 is a view taken in the direction of arrow C in FIG. In addition, in FIG. 10, illustration of the cover plate 12c is abbreviate | omitted for convenience of explanation.

  8 and 10, the release mechanism 50 is mainly accommodated in the box portion 12b of the base 12, and includes an arm 51, a contact pin 52, a stopper 53, a pair of first and second swing plates 54, 55, first and second fixing pins 56, 57, first and second projecting pins 58, 59, a connecting pin 60, a connecting bracket 61, and a wire (connecting means) 62. In addition, although these members 51-62 are arrange | positioned at the base 12 (box part 12b) side arrange | positioned at the right side of FIG.6 (b), the base 12 (arranged at the left side of FIG.6 (b)). It is also arranged on the box 12b) side.

  In FIG. 8, the base end portion of the arm 51 is disposed in a groove portion 12 e formed in the pedestal main body 12 a so as to communicate with the internal space 12 d of the box portion 12 b, and is arranged at an end portion on the outer side in the vehicle width direction of the rotary bracket 13. It is fixed. A distal end portion of the arm 51 is disposed in the internal space 12d, and a contact pin 52 that protrudes outward in the vehicle width direction is fixed to the distal end portion. As a result, as shown in FIG. 9, the rotary bracket 13 rotates around the axis X in conjunction with the vertical rotation of the handle 11, so that the tip of the arm 51 abuts in the internal space 12d of the box 12b. It rotates with the pin 52 in the vertical direction. In this embodiment, the arm 51 is rotated downward by the upward rotation of the handle 11, and the arm 51 is rotated upward by the downward rotation of the handle 11.

In FIG. 9, a stopper 53 with which the contact pin 52 contacts while the arm 51 is rotating downward is fixed to the lower surface in the box portion 12 b. As a result, the arm 51 rotates downward to the first rotation position where the contact pin 52 contacts the stopper 53 (the one-dot chain line position in FIG. 9).
On the other hand, a stopper with which the contact pin 52 comes into contact with the upper side of the arm 51 is not provided on the upper surface in the box portion 12b. For this reason, the arm 51 rotates upward to a second rotation position (a two-dot chain line position in FIG. 9) where the base end of the arm 51 contacts the inner surface of the groove 12 e of the pedestal main body 12 a.

  As described above, when the first operation for rotating the handle 11 upward from the neutral position (solid line position in FIG. 7) to the upper rotation position (dotted line position in FIG. 7) is performed, the arm 51 and the contact pin 52 are moved together. Through the rotating bracket 13, the contact pin 52 rotates downward from the solid line position in FIG. 9 to a first rotation position (a one-dot chain line position in FIG. 9) where the contact pin 52 contacts the stopper 53.

  When the second operation of rotating the handle 11 downward from the neutral position to the downward rotation position (the two-dot chain line position in FIG. 7) is performed, the arm 51 together with the contact pin 52 is interposed via the rotation bracket 13. Then, it rotates upward from the solid line position in FIG. 9 to the second rotation position (two-dot chain line position in FIG. 9). At that time, since the contact pin 52 does not contact the stopper 53, the downward rotation stroke from the neutral position to the lower rotation position of the handle 11 is larger than the upward rotation stroke from the neutral position to the upper rotation position. Become.

  9 and 10, the first swing plate 54 is made of, for example, a substantially triangular flat plate member, and is disposed in the vicinity of the cover plate 12c on the front side of the internal space 12d. One top of the first swing plate 54 (the top on the lower side in FIG. 10) is attached to the first fixing pin 56 fixed to the cover plate 12c so as to swing about the axis Y1. Yes. A first protruding pin 58 protrudes rearward and is fixed to another top portion of the first swing plate 54 (a top portion on the inner side in the vehicle width direction in FIG. 10). The outer peripheral surface of the contact pin 52 contacts the outer peripheral surface of the first protruding pin 58.

  The second rocking plate 55 is made of a flat plate member having the same shape (substantially triangular shape) as the first rocking plate 54, and is arranged in the vicinity of the rear side of the first rocking plate 54 on the front side of the internal space 12d. ing. One top portion (the top portion in FIG. 10) of the second swing plate 55 is attached to the second fixing pin 57 fixed to the cover plate 12c so as to be swingable about the axis Y2. . A second protruding pin 59 protrudes rearward and is fixed to the other top of the second swing plate 55 (the top in the vehicle width direction in FIG. 10). The outer peripheral surface of the contact pin 52 contacts the outer peripheral surface of the second protruding pin 59.

  8 and 10, the remaining top portion of the first swing plate 54 (top portion on the outer side in the vehicle width direction in FIG. 10) and the remaining top portion on the second swing plate 55 (top portion on the outer side in the vehicle width direction in FIG. 10). ) Are arranged to overlap each other in the front-rear direction, and are connected to each other by one end of the connecting pin 60. Although not shown, the first swing plate 54 is formed with a long hole that penetrates the connecting pin 60.

  The other end of the connecting pin 60 passes through a long hole 12f formed in the cover plate 12c and protrudes forward of the box 12b. The other end portion of the connecting pin 60 is connected to one end portion of the wire 62 via a connecting bracket 61 having an L-shaped cross section. The other end of the wire 62 is connected to the lock pin 31 as described above (see FIG. 4).

[How to operate the cover member when opening the slot]
Next, the operation method of the handle 11 and the movement of the lock device 30 performed when the cover member 20 in the lower position is slid to the upper position to open the insertion port 3a will be described.
First, an operation for lifting the handle 11 is performed. As a result, the first operation of rotating the handle 11 upward from the neutral position (solid line position in FIG. 7) to the upward rotation position (dotted line position in FIG. 7) is performed.

  When the first operation is performed, the release mechanism 50 of the lock device 30 causes the arm 51 to move from the state shown in the solid line in FIG. 9 and the state shown in FIG. 10 via the rotary bracket 13 connected to the handle 11. A downward rotation is started together with the contact pin 52. Then, the contact pin 52 pushes down the first projecting pin 58 downward, so that the first swing plate 54 swings in the clockwise direction of FIG. 10 about the axis Y1.

  The connecting pin 60 tends to move inward in the vehicle width direction by the swinging of the first swinging plate 54, so the second swinging plate 55 connected to the connecting pin 60 is centered on the axis Y2. Oscillates counterclockwise in FIG. As described above, the first and second swing plates 54 and 55 swing, so that the connecting pin 60 is moved inward in the vehicle width direction until the contact pin 52 contacts the stopper 53 as shown in FIG. Move to.

  When the connecting pin 60 moves inward in the vehicle width direction, one end of the wire 62 is pulled inward in the vehicle width direction via the connecting bracket 61. Then, the lock pin 31 connected to the other end of the wire 62 moves inward in the vehicle width direction against the urging force of the spring 32 from the position indicated by the solid line in FIG. Then, when the contact pin 52 contacts the stopper 53 as described above, the lock pin 31 is pulled to the first release position where the engagement with the lower engagement portion 33 is released as shown in FIG. It is.

  In the first release position, the outer end in the vehicle width direction of the lock pin 31 is positioned on the inner side in the vehicle width direction with respect to the lower engagement portion 33 and the regulating portion 38 as shown by the broken line in FIG. The portion 34, the engaging portion 37, and the regulating portion 36 are located on the outer side in the vehicle width direction than the inner ends in the vehicle width direction. That is, the first release position is such that when the cover member 20 is moved from the lower position to the upper side, the outer end in the vehicle width direction of the lock pin 31 has the inclined surface 37 b of the engaging portion 37 and the upper engaging portion 34. The positions are set so as to be in contact with the inclined surfaces 34b. In the first release position, the lock pin 31 can move further inward in the vehicle width direction against the urging force of the spring 32. Even in the modification of FIG. 5, in the first release position, the outer end in the vehicle width direction of the lock pin 31 is located on the inner side in the vehicle width direction with respect to the lower engagement portion 33 and the regulating portion 38, and The engaging portion 34, the engaging portion 37, and the restricting portion 36 are positioned on the outer side in the vehicle width direction from the inner ends in the vehicle width direction.

  Next, an operation for further lifting the handle 11 is performed. As a result, the cover member 20 slides upward from the lower position while the handle 11 is held at the upper rotation position, that is, the lock pin 31 is pulled into the first release position. During the sliding of the cover member 20, the lock pin 31 is pushed inward in the vehicle width direction from the inclined surface 37 b by the vehicle width direction outer end of the lock pin 31 coming into contact with the inclined surface 37 b of the engaging portion 37. Reaction force (external force) is applied. Then, the lock pin 31 moves inward in the vehicle width direction along the inclined surface 37b against the urging force of the spring 32 while bending the wire 62 connected thereto. Thus, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the first release position and gets over the engaging portion 37 while the handle 11 is held in the upper rotation position.

When the outer end of the lock pin 31 in the vehicle width direction moves over the engagement portion 37 and moves to the upper side, the reaction force from the engagement portion 37 does not act, so as shown by the two-dot chain line in FIG. The urging force of 32 automatically moves the vehicle outward in the vehicle width direction and returns to the first release position where the bent wire 62 is pulled again.
As described above, the release mechanism 50 of the present embodiment further moves the lock pin 31 when the external force is applied to the lock pin 31 at the first release position by the wire 62 that connects the lock pin 31 and the connection bracket 61. In addition to allowing movement in the width direction inward, it has a movement allowing function for allowing the lock pin 31 to return to the first release position when the external force stops working.

  Thereafter, when the cover member 20 slides further upward, the outer end in the vehicle width direction of the lock pin 31 passes through the inner side in the vehicle width direction with respect to the restricting portion 38 and comes into contact with the inclined surface 34 b of the upper engagement portion 34. If the handle 11 is further lifted from this state, a reaction force that is pushed inward in the vehicle width direction from the inclined surface 34b acts on the lock pin 31. Therefore, the lock pin 31 is The wire 62 connected to is moved inward in the vehicle width direction along the inclined surface 34b against the urging force of the spring 32 while bending the wire 62. Accordingly, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the first release position and gets over the upper engagement portion 34 while the handle 11 is held in the upper rotation position.

  When the cover member 20 reaches the upper position, the reaction force from the upper engagement portion 34 does not act on the outer end of the lock pin 31 in the vehicle width direction. The urging force automatically moves outward in the vehicle width direction and returns to the first release position where the bent wire 62 is pulled again. As a result, the vehicle width direction outer end of the lock pin 31 engages with the engagement surface 34 a of the upper engagement portion 34.

  Next, the hand is released from the handle 11. Then, the force that pulls the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so that the lock pin 31 is kept in a state of being engaged with the engagement surface 34a of the upper engagement portion 34, and the spring. It moves to the vehicle width direction outer side from a 1st cancellation | release position by the urging | biasing force of 32, and will be in the state shown with the dashed-dotted line of FIG. Thereby, it can be regulated that the cover member 20 slides from the upper position to the lower side by its own weight.

  When the lock pin 31 is moved outward in the vehicle width direction from the first release position by the biasing force of the spring 32, the connection pin 60, the first swing plate 54 (the first protrusion pin) are connected via the wire 62 and the connection bracket 61. 58), the second swinging plate 55 (second projecting pin 59), and the arm 51 (contact pin 52) move in the opposite direction to the above, whereby the handle 11 returns to the neutral position. As a result, as shown in FIG. 10, the first and second projecting pins 58 and 59 hold the contact pin 52 in the vertical direction, so that the vertical rotation of the arm 51 is restricted. Held in position.

  As described above, while the cover member 20 is slid upward, the lock pin 31 abuts against the inclined surface 34b of the upper engagement portion 34, thereby resisting the biasing force of the spring 32 and moving outward in the vehicle width direction. Move to get over the upper engagement portion 34. When the cover member 20 reaches the upper position, the lock pin 31 automatically moves outward in the vehicle width direction by the urging force of the spring 32 and engages with the engagement surface 34 a of the upper engagement portion 34. That is, even if the cover member 20 is slid upward with the lock device 30 releasing the sliding restriction of the cover member 20 in the lower position, the lock pin 31 is automatically moved when the cover member 20 reaches the upper position. The upper engagement portion 34 is engaged with the engagement surface 34a.

Therefore, even if the hand is released from the handle 11 in a state where the cover member 20 is slid to the upper position, the lock pin 31 is already engaged with the upper engagement portion 34 to restrict the downward movement of the cover member 20. Therefore, it is possible to reliably prevent the cover member 20 from sliding from the upper position to the lower side by its own weight.
Further, when the cover member 20 is slid to the upper position, the feeling that the lock pin 31 engages with the upper engagement portion 34 is transmitted to the operator's hand through the handle 11, so that the operator can move the cover member 20 to the upper position. It can be easily grasped that the position has been reached.

  Further, when the operation of lifting the handle 11 is performed to slide the cover member 20 in the lower position upward, the first operation of the release mechanism 50 is performed and the lock pin 31 and the lower engagement portion 33 are engaged. Is released. As described above, the first operation for releasing the engagement between the lock pin 31 and the lower engagement portion 33 is performed in conjunction with the operation of the handle 11 for sliding the cover member 20 upward. It is possible to reliably regulate the sliding of the cover member 20 from the upper position to the lower side while performing the above.

  Further, in the present embodiment, while the cover member 20 is slid to the upper position, the outer end in the vehicle width direction of the lock pin 31 contacts the inclined surface 37b of the engaging portion 37 as described above, so that the lock pin A reaction force is applied to 31 that is pushed inward in the vehicle width direction from the inclined surface 37b. Then, by the movement allowance function, the lock pin 31 moves inward in the vehicle width direction along the inclined surface 37b against the urging force of the spring 32 while bending the wire 62 connected thereto. Thus, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the first release position and gets over the engaging portion 37 while the handle 11 is held in the upper rotation position. Then, when the outer end of the lock pin 31 in the vehicle width direction moves upward from the engaging portion 37, the reaction force from the engaging portion 37 does not act, so as shown by the two-dot chain line in FIG. The urging force of 32 automatically moves the vehicle outward in the vehicle width direction and returns to the first release position where the bent wire 62 is pulled again. At this time, the cover member 20 reaches a height position slightly lower than the upper position, and the outer end in the vehicle width direction of the lock pin 31 is engaged with the engagement surface 37 a of the engagement portion 37.

  Therefore, when the hand is released from the handle 11 in this state, the force for pulling the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so that the lock pin 31 is applied to the engagement surface 37a of the engagement portion 37. While maintaining the engaged state, the spring 32 is moved outward from the first release position (the two-dot chain line position in FIG. 12) by the urging force of the spring 32, and the state indicated by the two-dot chain line in FIG.

As a result, when the short worker cannot slide the cover member 20 to the upper position, the hand is released from the handle 11 when the cover member 20 reaches a height position slightly lower than the upper position. Thus, the cover member 20 can be held at the height position. At that time, even if the hand is released from the handle 11, the lock pin 31 is already engaged with the engaging portion 37 to restrict the downward movement of the cover member 20. It is possible to reliably prevent the sliding from the vertical position to the lower side.
Further, since the touch that the lock pin 31 engages with the engaging portion 37 is transmitted to the operator's hand through the handle 11 when the cover member 20 is slid to the height position, It can be easily grasped that the height position has been reached.

[How to operate the cover member when closing the slot]
Next, the operation method of the handle 11 and the movement of the lock device 30 performed when the cover member 20 in the upper position is slid to the lower position to close the insertion port 3a will be described.
First, an operation for lowering the handle 11 is performed. Thereby, the second operation of rotating the handle 11 downward from the neutral position (solid line position in FIG. 7) to the downward rotation position (two-dot chain line position in FIG. 7) is performed.

  When the second operation is performed, the release mechanism 50 of the lock device 30 causes the arm 51 to move from the state shown in the solid line in FIG. 9 and the state shown in FIG. 10 via the rotary bracket 13 connected to the handle 11. The upward rotation is started together with the contact pin 52. Then, the contact pin 52 pushes up the second projecting pin 59 upward, and the second swing plate 55 swings in the counterclockwise direction in FIG. 10 about the axis Y2.

  The connecting pin 60 tends to move inward in the vehicle width direction by the swinging of the second swinging plate 55, so the first swinging plate 54 connected to the connecting pin 60 is centered on the axis Y1. Oscillates clockwise in FIG. As described above, the first and second swing plates 54 and 55 swing, so that the connecting pin 60 moves inward in the vehicle width direction to the position shown in FIG. At this time, since there is no stopper with which the contact pin 52 contacts during the upward rotation of the arm 51, the contact pin 52 contacts the stopper 53 during the downward rotation of the arm 51 as described above (FIG. 11). Than the reference), the connecting pin 60 moves inward in the vehicle width direction.

  When the connecting pin 60 moves inward in the vehicle width direction, one end of the wire 62 is pulled inward in the vehicle width direction via the connecting bracket 61. Then, the lock pin 31 connected to the other end of the wire 62 is moved from the position indicated by the one-dot chain line in FIG. 4 against the urging force of the spring 32 as shown in FIG. The vehicle moves inward in the vehicle width direction (see FIG. 12) and is pulled to the second release position where the engagement with the upper engagement portion 34 is released.

That is, at the second release position, the outer end in the vehicle width direction of the lock pin 31 is, as shown by a broken line in FIG. 14, an upper engagement portion 34, a lower engagement portion 33, an engagement portion 37, and a restriction portion 36, It is located on the inner side in the vehicle width direction than 38. As a result, the cover member 20 can be slid from the upper position to the lower side.
Even in the modification of FIG. 5, at the second release position, the outer end of the lock pin 31 in the vehicle width direction is the upper engagement portion 34, the lower engagement portion 33, the engagement portion 37, the restriction portion 36, It is located on the inner side in the vehicle width direction than 38.

  Next, an operation for further lowering the handle 11 is performed. Accordingly, the cover member 20 slides from the upper position to the lower side while the handle 11 is held at the lower rotation position, that is, the lock pin 31 is pulled into the second release position. In the middle of the slide, the outer end in the vehicle width direction of the lock pin 31 passes through the inner side in the vehicle width direction of the restriction portion 38, the engagement portion 37, and the lower engagement portion 33.

  When the cover member 20 reaches the lower position, the lock pin 31 is located below the lower engaging portion 33 and above the restricting portion 36 as indicated by a one-dot chain line in FIG. It becomes a state. When the hand is released from the handle 11 from this state, the force that pulls the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so the lock pin 31 is moved from the second release position by the urging force of the spring 32. It moves to the outer side in the width direction, and is in a state of being engaged with the engagement surface 33a of the lower engagement portion 33 as shown by the solid line in FIG. Thereby, the sliding of the cover member 20 from the lower position to the upper side by the urging force of the auxiliary member 25 can be restricted. Further, it is possible to reliably prevent the cover member 20 from jumping upward from the lower position due to vibration during traveling.

  When the lock pin 31 is moved outward from the second release position in the vehicle width direction by the biasing force of the spring 32, the connection pin 60, the first swing plate 54 (the first protrusion pin) are connected via the wire 62 and the connection bracket 61. 58), the second swing plate 55 (second projecting pin 59), and the arm 51 (contact pin 52) move in the opposite direction to the above, so that the handle 11 returns to the neutral position. Held in.

[Second Embodiment]
FIG. 15 is a cross-sectional view (corresponding to FIG. 9) showing the release mechanism 50 in the lock device 30 of the garbage truck 1 according to the second embodiment of the present invention. FIG. 16 is an explanatory diagram of the release mechanism 50 (a diagram corresponding to FIG. 10). 15 and 16, the release mechanism 50 of the present embodiment is different from the first embodiment in that a stopper 53 is fixed to the upper surface in the box portion 12b.

Therefore, in this embodiment, when the first operation for rotating the handle 11 upward from the neutral position to the upper rotation position is performed, the arm 51 has a base end portion of the base body 12a from the solid line position in FIG. It rotates downward to a first rotation position (a one-dot chain line position in FIG. 15) that contacts the inner surface of the groove 12e. Further, when the second operation of rotating the handle 11 downward from the neutral position to the downward rotation position is performed, the arm 51 performs the second rotation in which the contact pin 52 contacts the stopper 53 from the solid line position in FIG. It rotates upwards to a position (two-dot chain line position in FIG. 15).
Accordingly, the upward rotation stroke from the neutral position to the upper rotation position of the handle 11 is larger than the downward rotation stroke from the neutral position to the lower rotation position by the amount that the contact pin 52 does not contact the stopper 53. growing.

FIG. 17 is a front view of the cover member 20 in the lower position in the second embodiment as viewed from the front side (back side). In FIG. 17, the locking device 30 according to the present embodiment has a lower engaging portion 33 and a restricting portion 38 that protrude from the upper engaging portion 34 and the engaging portion 37 inward in the vehicle width direction. This is different from the first embodiment.
The remaining configuration of the second embodiment is the same as that of the first embodiment, and a description thereof will be omitted.

[How to operate the cover member when opening the slot]
Next, the operation method of the handle 11 and the movement of the lock device 30 performed when the cover member 20 in the lower position is slid to the upper position to open the insertion port 3a in the present embodiment will be described.
First, an operation for lifting the handle 11 is performed. As a result, a first operation for rotating the handle 11 upward from the neutral position (solid line position in FIG. 7) to the upward rotation position (dot-dash line position in FIG. 7) is performed.

  When the first operation is performed, in the release mechanism 50 of the lock device 30, the arm 51 moves downward together with the contact pin 52 from the position indicated by the solid line in FIG. 15 via the rotary bracket 13 connected to the handle 11. Start turning. Then, the contact pin 52 pushes down the first projecting pin 58 downward, and the first swing plate 54 swings in the clockwise direction of FIG. 16 about the axis Y1.

  The connecting pin 60 tends to move inward in the vehicle width direction by the swinging of the first swinging plate 54, so the second swinging plate 55 connected to the connecting pin 60 is centered on the axis Y2. Oscillates counterclockwise in FIG. As described above, the first and second swing plates 54 and 55 swing, so that the connecting pin 60 moves inward in the vehicle width direction to the position shown in FIG. At this time, since there is no stopper with which the contact pin 52 contacts during the downward rotation of the arm 51, the contact pin 52 contacts the stopper 53 during the upward rotation of the arm 51 as will be described later (FIG. 20). Than the reference), the connecting pin 60 moves inward in the vehicle width direction.

  When the connecting pin 60 moves inward in the vehicle width direction, one end of the wire 62 is pulled inward in the vehicle width direction via the connecting bracket 61. Then, the lock pin 31 connected to the other end of the wire 62 moves inward in the vehicle width direction against the urging force of the spring 32 from the position shown by the solid line in FIG. 17, and as shown in FIG. Then, it is pulled to the first release position where the engagement with the lower engagement portion 33 is released.

  That is, at the first release position, the outer end in the vehicle width direction of the lock pin 31 is, as shown by a broken line in FIG. 19, a lower engagement portion 33, an upper engagement portion 34, a restriction portion 36, an engagement portion 37, and It is located on the inner side in the vehicle width direction than the regulating portion 38. The first release position is a position on the inner side in the vehicle width direction than a second release position (see FIG. 21) described later. As a result, the cover member 20 can be slid upward from the lower position.

  Next, an operation for further lifting the handle 11 is performed. As a result, the cover member 20 slides upward from the lower position while the handle 11 is held at the upper rotation position, that is, the lock pin 31 is pulled into the first release position. In the middle of the slide, the outer end in the vehicle width direction of the lock pin 31 passes the inner side in the vehicle width direction of the lower engagement portion 33, the engagement portion 37, and the restriction portion 38.

  When the cover member 20 reaches the upper position, the lock pin 31 is positioned above the upper engagement portion 34 as indicated by a one-dot chain line in FIG. When the hand is released from the handle 11 from this state, the force that pulls the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so the lock pin 31 is moved from the first release position by the urging force of the spring 32. It moves to the outer side in the width direction, and as shown by the one-dot chain line in FIG. Thereby, it can be regulated that the cover member 20 slides from the upper position to the lower side by its own weight.

  When the lock pin 31 is moved outward in the vehicle width direction from the first release position by the biasing force of the spring 32, the connection pin 60, the first swing plate 54 (the first protrusion pin) are connected via the wire 62 and the connection bracket 61. 58), the second swing plate 55 (second projecting pin 59), and the arm 51 (contact pin 52) move in the opposite direction to the above, so that the handle 11 returns to the neutral position. Held in.

  Further, when the short stature operator cannot slide the cover member 20 to the upper position, the lock pin 31 is positioned between the restricting portion 38 and the upper engaging portion 34 so that the cover member 20 The sliding to the upper side is stopped, and the operation of lowering the handle 11 is performed to slide the cover member 20 to the lower side. At this time, as will be described later, the lock pin 31 is brought into the second release position (see FIG. 21) by the operation of lowering the handle 11, and the cover member 20 is further slid downward to thereby restrict the restricting portion 38. It contacts with the inclined surface 38b.

  Then, the lock pin 31 is bent inward in the vehicle width direction along the inclined surface 38b against the urging force of the spring 32 while bending the wire 62 connected thereto by the reaction force from the inclined surface 38b. Moving. As a result, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the second release position and gets over the restricting portion 38 with the handle 11 held in the downward rotation position.

  When the outer end of the lock pin 31 in the vehicle width direction moves over the restricting portion 38 and moves to the lower side, the reaction force from the restricting portion 38 does not act, so as shown by the two-dot chain line in FIG. The urging force automatically moves outward in the vehicle width direction and returns to the second release position where the bent wire 62 is pulled again. When the hand is released from the handle 11 from this state, the force that pulls the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so the lock pin 31 is moved from the second release position by the urging force of the spring 32. As shown by the two-dot chain line in FIG. 17, it moves to the outer side in the width direction and is engaged with the engaging surface 37 a of the engaging portion 37.

  As described above, when the short stature operator cannot slide the cover member 20 to the upper position, when the cover member 20 reaches a height position that is slightly lower than the upper position, By separating, the cover member 20 can be held at the height position. Thereby, it can be regulated that the cover member 20 slides downward from the height position by its own weight.

Further, since the touch when the lock pin 31 abuts on the inclined surface 38b of the restricting portion 38 and gets over the restricting portion 38 is transmitted to the operator's hand through the handle 11, the operator can remove the cover member 20 from the cover member 20. It is possible to easily grasp that the height position has been reached.
In addition, regardless of the height of the operator, the rainwater can be prevented from entering the refuse input box 3 from the input port 3a by holding the cover member 20 at the height position when it rains.

[How to operate the cover member when closing the slot]
Next, the operation method of the handle 11 and the movement of the locking device 30 performed when the cover member 20 in the upper position is slid to the lower position and the closing port 3a is closed in the present embodiment will be described.
First, an operation for lowering the handle 11 is performed. Thereby, the second operation of rotating the handle 11 downward from the neutral position (solid line position in FIG. 7) to the downward rotation position (two-dot chain line position in FIG. 7) is performed.

  When the second operation is performed, in the release mechanism 50 of the lock device 30, the arm 51 moves upward together with the contact pin 52 from the position indicated by the solid line in FIG. 15 via the rotary bracket 13 connected to the handle 11. Start turning. Then, the contact pin 52 pushes up the second projecting pin 59 upward, so that the second swing plate 55 swings counterclockwise in FIG. 16 about the axis Y2.

  The connecting pin 60 tends to move inward in the vehicle width direction by the swinging of the second swinging plate 55, so the first swinging plate 54 connected to the connecting pin 60 is centered on the axis Y1. Oscillates clockwise in FIG. As described above, the first and second swing plates 54 and 55 swing, so that the connecting pin 60 is moved inward in the vehicle width direction until the contact pin 52 contacts the stopper 53 as shown in FIG. Move to.

  When the connecting pin 60 moves inward in the vehicle width direction, one end of the wire 62 is pulled inward in the vehicle width direction via the connecting bracket 61. Then, the lock pin 31 connected to the other end of the wire 62 moves inward in the vehicle width direction against the urging force of the spring 32 from the position indicated by the one-dot chain line in FIG. As the contact pin 52 contacts the stopper 53 as described above, the lock pin 31 is pulled to the second release position where the engagement with the upper engagement portion 34 is released as shown in FIG. It is.

  In the second release position, the outer end in the vehicle width direction of the lock pin 31 is located on the inner side in the vehicle width direction with respect to the upper engaging portion 34, the engaging portion 37, and the restricting portion 36, as indicated by a broken line in FIG. At the same time, it is located on the outer side in the vehicle width direction from the inner end in the vehicle width direction of the restricting portion 38 and the lower engaging portion 33. That is, the second release position is such that when the cover member 20 is moved from the upper position to the lower side, the outer end of the lock pin 31 in the vehicle width direction has the inclined surface 38b of the restricting portion 38 and the lower engaging portion 33. The positions are set so as to contact the inclined surfaces 33b. In the second release position, the lock pin 31 can move further inward in the vehicle width direction against the urging force of the spring 32.

  Next, an operation for further lowering the handle 11 is performed. Accordingly, the cover member 20 slides from the upper position to the lower side while the handle 11 is held at the lower rotation position, that is, the lock pin 31 is pulled into the second release position. During the sliding of the cover member 20, the outer end in the vehicle width direction of the lock pin 31 abuts on the inclined surface 38 b of the restricting portion 38, so that the lock pin 31 is pushed inward in the vehicle width direction from the inclined surface 38 b. Reaction force (external force) acts. Then, the lock pin 31 moves inward in the vehicle width direction along the inclined surface 38b against the urging force of the spring 32 while bending the wire 62 connected thereto. As a result, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the second release position and gets over the restricting portion 38 with the handle 11 held in the downward rotation position.

When the outer end of the lock pin 31 in the vehicle width direction moves over the restricting portion 38 and moves to the lower side, the reaction force from the restricting portion 38 does not act, so as shown by the two-dot chain line in FIG. The urging force automatically moves outward in the vehicle width direction and returns to the second release position where the bent wire 62 is pulled again.
As described above, the release mechanism 50 of the present embodiment further moves the lock pin 31 when the external force is applied to the lock pin 31 at the second release position by the wire 62 that connects the lock pin 31 and the connection bracket 61. It has a movement allowing function that allows the inner side in the width direction to move and also allows the lock pin 31 to return to the second release position when the external force stops working.

  Thereafter, when the cover member 20 slides further downward, the outer end in the vehicle width direction of the lock pin 31 passes through the inner side in the vehicle width direction from the engagement portion 37 and contacts the inclined surface 33b of the lower engagement portion 33. Touch. From this state, when the operation of further lowering the handle 11 is performed, a reaction force that is pushed inward in the vehicle width direction from the inclined surface 33b acts on the lock pin 31, so that the lock pin 31 is While bending the wire 62 connected thereto, the wire 62 moves inward in the vehicle width direction along the inclined surface 33b against the urging force of the spring 32. Accordingly, the outer end in the vehicle width direction of the lock pin 31 moves further inward in the vehicle width direction from the second release position and gets over the lower engagement portion 33 while the handle 11 is held at the lower rotation position.

  When the cover member 20 reaches the lower position, the reaction force from the lower engaging portion 33 does not act on the outer end of the lock pin 31 in the vehicle width direction. The urging force automatically moves outward in the vehicle width direction and returns to the second release position where the bent wire 62 is pulled again. Thereby, the outer end in the vehicle width direction of the lock pin 31 engages with the engagement surface 33 a of the lower engagement portion 33.

  Next, the hand is released from the handle 11. Then, the force that pulls the lock pin 31 inward in the vehicle width direction via the wire 62 is released, so that the lock pin 31 is kept in a state of being engaged with the engagement surface 33a of the lower engagement portion 33, and the spring. The urging force of 32 moves from the second release position to the outside in the vehicle width direction, resulting in a state indicated by a solid line in FIG. Thereby, the sliding of the cover member 20 from the lower position to the upper side by the urging force of the auxiliary member 25 can be restricted. Further, the lower engaging portion 33 can reliably prevent the cover member 20 from jumping upward from the lower position due to vibration during traveling.

  When the lock pin 31 is moved outward from the second release position in the vehicle width direction by the biasing force of the spring 32, the connection pin 60, the first swing plate 54 (the first protrusion pin) are connected via the wire 62 and the connection bracket 61. 58), the second swing plate 55 (second projecting pin 59), and the arm 51 (contact pin 52) move in the opposite direction to the above, so that the handle 11 returns to the neutral position. Held in.

  As described above, the lock pin 31 is in contact with the inclined surface 33b of the lower engagement portion 33 while the cover member 20 is slid to the lower position, thereby resisting the urging force of the spring 32 in the vehicle width direction outer side. To go over the lower engagement portion 33. When the cover member 20 reaches the lower position, the lock pin 31 automatically moves outward in the vehicle width direction by the urging force of the spring 32 and engages with the engagement surface 33 a of the lower engagement portion 33. That is, even if the cover member 20 is slid downward while the sliding restriction of the cover member 20 in the upper position is released by the lock device 30, the lock pin 31 is automatically moved when the cover member 20 reaches the lower position. Thus, the engagement surface 33a of the lower engagement portion 33 is engaged.

Therefore, even if the hand is released from the handle 11 in a state where the cover member 20 is slid to the lower position, the lock pin 31 is already engaged with the lower engagement portion 33 to restrict the upward movement of the cover member 20. Therefore, the cover member 20 can be reliably prevented from sliding upward from the lower position by the urging force of the auxiliary member 25.
Further, when the cover member 20 is slid to the lower position, the feeling that the lock pin 31 engages with the lower engagement portion 33 is transmitted to the operator's hand through the handle 11, so that the operator can move the cover member 20 down. It can be easily grasped that the position has been reached.

  Further, when an operation of lowering the handle 11 to slide the cover member 20 in the upper position downward is performed, a second operation of the release mechanism 50 is performed, and the lock pin 31 and the upper engagement portion 34 are moved. The engagement is released. As described above, the second operation for releasing the engagement between the lock pin 31 and the upper engagement portion 34 is performed in conjunction with the operation of the handle 11 for sliding the cover member 20 downward. It is possible to reliably restrict the cover member 20 from sliding from the lower position to the upper side while performing the operation easily.

[Others]
The release mechanism 50 in each of the above embodiments uses the wire 62 as a connecting means for connecting the lock pin 31 and the connecting bracket 61, but other connecting means such as a rod can be used as long as it has the above-described movement allowing function. It may be used. In the present embodiment, the spring (biasing member) 32 also serves as a force that causes the lock pin 31 to return to the first or second release position when no external force is applied in the movement permission function. However, a member for applying the returning force may be provided separately. In addition to the spring 32, other urging members such as rubber may be used as the member for applying the returning force.
Although the refuse collection vehicle 1 in each said embodiment is equipped with the press-type loading apparatus T, it may be equipped with the rotating plate type loading apparatus which loads a dust with a rotating plate and a pushing plate.

Further, the inner end in the vehicle width direction of the restricting portion 38 of the first embodiment may be located on the outer side in the vehicle width direction with respect to the inner end in the vehicle width direction of the lower engagement portion 33, or the first release position If the lock pin 31 (see FIG. 12) is located on the outer side in the vehicle width direction than the outer end in the vehicle width direction, the lock pin 31 may be located on the inner side in the vehicle width direction relative to the inner end in the vehicle width direction. Good.
Further, the inner ends in the vehicle width direction of the restricting portions 36 and 37 of the first embodiment are located on the inner side in the vehicle width direction from the outer end in the vehicle width direction of the lock pin 31 (see FIG. 12) at the first release position. If this is the case, the upper engagement portion 34 may be positioned on the outer side in the vehicle width direction than the inner end in the vehicle width direction, or may be positioned on the outer side in the vehicle width direction of the lock pin 31 (see FIG. 14) at the second release position. As long as it is located on the outer side in the vehicle width direction, it may be located on the inner side in the vehicle width direction with respect to the inner end in the vehicle width direction of the upper engagement portion 34.

Further, if the inner end in the vehicle width direction of the restricting portion 38 of the second embodiment is located on the inner side in the vehicle width direction than the outer end in the vehicle width direction of the lock pin 31 (see FIG. 21) at the second release position. Further, the lower engagement portion 33 may be positioned on the outer side in the vehicle width direction with respect to the inner end in the vehicle width direction, or the vehicle width in comparison with the outer end in the vehicle width direction of the lock pin 31 (see FIG. 19) at the first release position. As long as it is located on the outer side in the direction, it may be located on the inner side in the vehicle width direction with respect to the inner end in the vehicle width direction of the lower engagement portion 33.
Further, the inner end in the vehicle width direction of the restricting portions 36 and 37 of the second embodiment may be located on the outer side in the vehicle width direction than the inner end in the vehicle width direction of the upper engagement portion 34, or the second release If the lock pin 31 at the position (see FIG. 21) is positioned on the outer side in the vehicle width direction with respect to the outer end in the vehicle width direction, the lock pin 31 is positioned on the inner side in the vehicle width direction with respect to the inner end in the vehicle width direction. May be.
In each of the above-described embodiments and modifications, the engaging portion 37 and the restricting portion 38 are provided below the upper engaging portion 34, but the engaging portion 37 and the restricting portion 38 are not necessarily provided.

In the modification shown in FIG. 5, the lower engagement portion 33 is the engagement hole 41, and the upper engagement portion 34 is the raised portion 42 and the engagement hole 43 formed integrally with the side wall 3 c. The joint portion 33 may be the engagement hole 41, and the upper engagement portion 34 may be provided separately from the side wall 3c as shown in FIG.
Further, the lower engagement portion 33 and the upper engagement portion 34 of the second embodiment are provided separately from the side wall 3c as in the first embodiment, but as in the above-described modification (see FIG. 5). The lower engaging portion 33 may be a raised portion and an engaging hole formed integrally with the side wall 3c, and the upper engaging portion 34 may be an engaging hole. Alternatively, only the upper engagement portion 34 may be used as the engagement hole while the lower engagement portion 33 is separated from the side wall 3c.

Moreover, in the said embodiment, although the 1st and 2nd operation is performed by rotating the handle | steering-wheel 11 to an up-down direction, the cover member 20 is moved to an up-down direction, such as sliding the handle 11 up-down. As long as it can be interlocked with the operation of the handle 11, the first and second operations may be performed by moving the handle 11 up and down by a method other than rotation.
In the above-described embodiment, the first and second operations are performed with the single handle 11. However, the two handles 11 are provided on the cover member 20, and the first operation is performed with one handle 11. The second operation may be performed with the other handle 11.

In the above embodiment, the first and second operations are performed by moving the handle 11 up and down. However, the first and second operations are performed in a manner that is not interlocked with the operation of the handle 11 that moves the cover member 20 in the vertical direction. Two operations may be performed.
For example, the first and second operations may be performed by moving the handle 11 to both sides of the cover member 20 in the vehicle width direction. Further, the handle 11 is fixed to the cover member 20, and a dedicated operation member (for example, two types of levers or two types of switches) is provided in the vicinity of the handle 11 for performing the first and second operations. May be.

Moreover, in the said embodiment, although the mounting base 10 is provided in the lower part of the insertion port 3a, this mounting base 10 does not necessarily need to be provided. When the mounting table 10 is not provided, the lower position where the insertion port 3a of the cover member 20 is closed is the lowest position of the cover member 20 in the above embodiment.
Moreover, although the cover member 20 of the said embodiment is slid up and down, you may make it move it up and down by methods other than a slide.

  Moreover, although the cover member 20 of the said embodiment moves to the lowest position, you may make it regulate the movement from a lower position to a lower side. In this case, for example, if the movement of the cover member 20 from the lower position to the lower side is restricted by a stopper provided on the rail member 21, the restriction portion 36 is unnecessary.

In the above-described embodiment, the auxiliary member 25 that constantly urges the cover member 20 toward the upper side urges the cover 20 via the arm member 24, but the cover member 20 does not involve the arm member 24. May be energized directly.
Further, as the auxiliary member 25, a winding device or a gas cylinder may be used in addition to the spring. In the case of using the winding device, the cover member 20 is constituted by, for example, a flexible sheet, and the cover member 20 is always wound by the winding device provided on the upper side of the charging port 3a of the dust box 3. That's fine.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Dust collection truck 2 Dust storage box 3 Dust input box 3a Input port 11 Handle 20 Cover member 25 Auxiliary member 30 Locking device 31 Lock pin 32 Spring (biasing member)
33 Lower engagement portion 33a Engagement surface 33b Inclined surface 34 Upper engagement portion 34a Engagement surface 34b Inclined surface 50 Release mechanism

Claims (3)

A dust bin,
A dust input box disposed behind the dust storage box and having an input port through which dust is input at the rear;
A cover member provided at a rear end portion of the dust container box so as to be vertically movable between a lower position for closing the input port and an upper position for opening the input port;
A handle provided on the cover member for operating up and down movement of the cover member;
A lock device that restricts and releases the movement of the cover member from the lower position to the upper side, and restricts and releases the movement of the cover member from the upper position to the lower side.
The locking device is
A lock pin provided movably in the vehicle width direction in the cover member;
A biasing member that constantly biases the lock pin toward the vehicle width direction outside of the cover member;
Locked by engaging the lock pin urged by the urging member when the cover member is in the lower position, provided at a side end in the vehicle width direction of the entry port in the dust box. A lower engaging portion that can restrict the pin from moving upward;
The urging force is provided at a side end in the vehicle width direction of the input port of the dust input box so as to protrude inward in the vehicle width direction from the lower engagement portion, and when the cover member is in the upper position. An upper engaging portion that engages with the lock pin urged by a member to restrict the lock pin from moving downward;
The first operation from the outside moves the lock pin to the first release position where the engagement with the lower engagement portion is released against the urging force of the urging member, and the second operation from the outside. A release mechanism that moves the lock pin to a second release position where the engagement with the upper engagement portion is released against an urging force of the urging member by an operation;
The upper engagement portion is formed with an engagement surface with which the lock pin engages, and the height increases from the outer side in the vehicle width direction toward the inner end in the vehicle width direction below the engagement surface. An inclined surface is formed,
In the first release position, the outer end of the lock pin in the vehicle width direction is located on the inner side in the vehicle width direction with respect to the lower engagement portion, and the vehicle engagement direction in the vehicle width direction with respect to the inner end in the vehicle width direction of the upper engagement portion. The outer end of the lock pin in the vehicle width direction is set to a position where the outer end of the lock pin comes into contact with the inclined surface when the cover member is moved from the lower position to the upper side. , Garbage truck. A dust bin,
A dust input box disposed behind the dust storage box and having an input port through which dust is input at the rear;
A cover member provided at a rear end portion of the dust container box so as to be vertically movable between a lower position for closing the input port and an upper position for opening the input port;
A handle provided on the cover member for operating up and down movement of the cover member;
An auxiliary member for always urging the cover member upward,
A lock device that restricts and releases the movement of the cover member from the lower position to the upper side, and restricts and releases the movement of the cover member from the upper position to the lower side.
The locking device is
A lock pin provided movably in the vehicle width direction in the cover member;
A biasing member that constantly biases the lock pin toward the vehicle width direction outside of the cover member;
Provided at a side end in the vehicle width direction of the input port in the dust input box, the lock member is engaged with the lock pin urged by the urging member when the cover member is in the upper position. An upper engaging portion that can restrict the pin from moving downward;
The urging force is provided at a side end in the vehicle width direction of the input port of the dust input box so as to protrude inward in the vehicle width direction from the upper engagement portion, and when the cover member is in the lower position. A lower engagement portion that engages with the lock pin urged by a member to restrict the lock pin from moving upward;
The first operation from the outside moves the lock pin to the first release position where the engagement with the lower engagement portion is released against the urging force of the urging member, and the second operation from the outside. A release mechanism that moves the lock pin to a second release position where the engagement with the upper engagement portion is released against an urging force of the urging member by an operation;
The lower engagement portion is formed with an engagement surface with which the lock pin is engaged, and the height is lowered from the outer side in the vehicle width direction toward the inner end in the vehicle width direction above the engagement surface. An inclined surface is formed,
The second release position is such that an outer end in the vehicle width direction of the lock pin is positioned on an inner side in the vehicle width direction than the upper engagement portion, and a vehicle width direction from the inner end in the vehicle width direction of the lower engagement portion. The lock pin is set at a position where the outer end in the vehicle width direction of the lock pin comes into contact with the inclined surface of the lower engagement portion when the cover member is moved from the upper position to the lower side. There is a garbage truck. The handle is moved upward when the handle is lifted to move the cover member upward, and the handle is lifted to move the cover member downward. It is provided so as to be movable up and down with respect to the cover member so as to move downward when
The release mechanism is coupled to the handle such that the upward movement of the handle is the first operation and the downward movement of the handle is the second operation. The garbage truck described in 1.

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