JP2001031204A - Garbage container reversing device of garbage collecting car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guarantee safety reversing operation of a container by moving a lift arm to a reversing position from a standby position as a gripping mechanism is moved to a gripping position from a release position by driving of an actuator, and locking the lift arm on the standby position in moving the gripping mechanism. SOLUTION: A garbage container is set in the rear of a garbage input box A, a lifting cylinder 30 is extended, and when rotating a lift arm 10, a lock part 41a of a first lock member 41 engages with a lock pin 42, and the lift arm 10 is locked on a standby position 10A. An engaging arm 24 is rotated in the upward direction with a base end part as the center via links 21 to 23 by successive extending motion of the lifting cylinder 30, so that the whole gripping mechanism 20A is moved to a gripping position, a gripping pin of the container is sandwiched between an engaging surface 24b of the engaging arm 24 and an engaging recessed part 25c of a gripping member 25, the garbage container is reversed by rotation of the lift arm 10 after that, and garbage in the garbage container is inputted to an input port A1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage container reversing device for putting garbage in a garbage container into a garbage charging box of a garbage truck.

[0002]

2. Description of the Related Art Garbage container reversing device 10 for garbage trucks
Numeral 0 is disclosed in, for example, Japanese Utility Model Publication No. Sho 62-43923, and is disposed at a dust input port A1 that opens at the rear of a dust input box A provided at the rear of the dust collection vehicle as shown in FIG. . Although only the left half of the garbage container reversing device 100 is shown in the figure and the right half is omitted, the right half is configured similarly to the left half.

A garbage container B to be inverted by the garbage container reversing device 100 has an opening B1 above,
A gripping pin B2 is provided at the front part so as to protrude outward. The refuse is charged or discharged into the garbage container B via the opening B1.

[0004] When the rod 102 of the lifting cylinder 101 attached to the bracket A2 of the trash can A is extended at the base end, the link 10 connected to the tip of the rod 102 is extended.
3 rotates in the direction of the arrow. Due to this rotation, the movable piece 105 fixed to the link 103 via the shaft 104 rotates in the direction of the arrow, and holds the holding pin B2 of the garbage container B between the movable piece 105 and the fixed piece 106. Assuming that the movement of the rod 102 until the gripping pin B2 is gripped is the first stroke,
The garbage container B is inverted by a second stroke following the first stroke.

When the second stroke is started, a projection 107 integrated with the link 103 comes into contact with one end of a long hole 109 formed in the lift arm 108. Second
By continuing the stroke, the lift arm 108 is rotated about the upper shaft 110 by the protrusion 107 in the direction of the arrow. By the rotation of the lift arm 108,
When the stopper 112 gradually pushes up the front side surface B3 of the garbage container B and further continues the second stroke, the garbage container B is turned upside down, and trash is thrown into the trash input port A1 from the opening B1. Then, the periphery of the opening B1 of the garbage container B, which is turned upside down, is the stopper 113.
The contact of the dust ends. In addition, the dust container B after dust is input is returned to the position shown in FIG. 10 in a procedure reverse to the above by shortening the elongated rod 102.

[0006]

According to the garbage container reversing device 100 for a garbage truck, the lifting cylinder 101
Can be divided into a first stroke and a second stroke, the gripping pin B2 of the garbage container B can be gripped by the first stroke, and the garbage container B can be turned upside down by the second stroke. The lifting cylinder 101 can be made up of two left and right cylinders in total, thereby simplifying the configuration.

However, in the container device 100, there is a concern that the lift arm 108 may start reversing the dust container B even when the movable piece 105 is not securely gripping the gripping pin B2. That is, in the normal state, the projection 1
When 07 comes into contact with the end of the elongated hole 109, the lift arm 108 starts the reversing operation. However, for example,
Foreign matter is caught between the projection 107 and the end of the elongated hole 109, or foreign matter is caught between the fixed piece 106 and the movable piece 105, and further movement of the projection 107 or the movable piece 105 is prevented during the movement. In this case, although the gripping of the gripping pin B2 by the movable piece 105 is not completely completed, the second stroke is started and the reversal operation of the garbage container B by the lift arm 108 is started, Alternatively, there is a concern that the movable piece 105 swings when an excessive load acts on the movable piece 105 from the dust container B. For this reason, there is a possibility that the gripping pin B2 may fall off the movable piece 105 and make it impossible to lift the garbage container B.

Therefore, an object of the present invention made in view of the above point is that the garbage container can be gripped by a series of continuous operations of the actuator and the garbage container can be gripped with a simple structure that can be turned upside down. It is an object of the present invention to provide a refuse container reversing device for a refuse collection vehicle in which a garbage container is reversed by a lift arm and a smooth operation is performed unless the operation is completely completed.

[0009]

According to a first aspect of the present invention, there is provided a garbage container reversing device for a refuse collection vehicle, the garbage container having an opening at an upper portion thereof being gripped and turned upside down. In the garbage container reversing device of the garbage collection vehicle for introducing the garbage in the garbage into the garbage collection box of the garbage collection vehicle through the opening, the garbage container is swingably supported by the garbage collection box, and the lower standby position and the garbage container are inverted. A lift arm that moves between an upper reversing position to be moved, a gripping mechanism that is supported by the lift arm, and that moves between a release position that releases gripping of the garbage container and a gripping position that grips the garbage container. Is disposed between the refuse collection vehicle and the gripping mechanism, and is disposed at the gripping position subsequent to moving the gripping mechanism from the release position to the gripping position. An actuator for moving the lift arm from the standby position to the reversing position via the gripping mechanism, and a movement of the gripping mechanism with respect to the lift arm interposed between the dust collection vehicle and the lift arm. A first lock mechanism that locks the lift arm at the standby position during the operation, and a first lock mechanism that is interposed between the lift arm and the grip mechanism, and locks the grip mechanism at the grip position while the lift arm is moving. And a second lock mechanism.

According to the first aspect of the present invention, the lift arm is moved from the standby position to the reversing position following the movement of the gripping mechanism from the release position to the gripping position by driving the actuator. At this time, the lift arm is maintained in a state of being locked to the standby position by the first lock mechanism during the movement of the gripping mechanism, so that the lift arm does not needlessly move from the standby position during the movement of the gripping mechanism. During the movement of the gripping mechanism in which the gripping of the garbage container is not completed, the lift arm does not start the upside down operation of the garbage container. Also, since the gripping mechanism is locked to the gripping position by the second lock mechanism while the lift arm is moving, the gripping mechanism does not needlessly move from the gripping position during the movement of the lift arm. During the operation, the holding of the garbage container by the holding mechanism is not released.

According to a second aspect of the present invention, in the refuse container reversing device for a refuse collection vehicle according to the first aspect, the first lock mechanism is configured to move the garbage collecting mechanism while the gripping mechanism is moving from the release position to the gripping position. The lift arm is locked at the standby position to prevent the movement of the lift arm, and the gripping mechanism is disposed at the gripping position to release the locked state to allow the movement of the lift arm, The lock mechanism locks the gripping mechanism at the gripping position by moving the gripping mechanism from the release position to the gripping position, and moves the lift arm between the standby position and the reversing position. Prevents movement of the gripping mechanism with respect to the lift arm.

According to the second aspect of the present invention, the gripping mechanism is moved from the release position to the gripping position by driving the actuator while the lift arm is locked at the standby position by the first locking mechanism. When the gripping mechanism is placed at the gripping position, the lock of the lift arm by the first lock mechanism is released, and the gripping mechanism is locked at the gripping position by the second lock mechanism. That is, movement of the lift arm is permitted, and movement of the gripping mechanism with respect to the lift arm is prevented. When the actuator is further driven in this state, the gripping mechanism moves integrally with the lift arm while being locked at the gripping position, and the lock is not released during the movement of the lift arm.

According to a third aspect of the present invention, in the garbage container reversing device for a refuse collection vehicle according to the second aspect, when the gripping mechanism is moved from the release position to the gripping position, the first lock mechanism is provided. And an engaging portion for unlocking by engaging with the second lock mechanism.

According to the third aspect of the present invention, when the gripping mechanism is moved from the release position to the gripping position, the unlocking of the first lock mechanism and the locking of the second lock mechanism are performed by the same engagement of the gripping mechanism. The lock release and the lock can be reliably performed by the unit.

According to a fourth aspect of the present invention, in the garbage container reversing device for a refuse collection vehicle according to the third aspect, the engagement portion locks the gripping mechanism by the second lock mechanism, and then locks the second lock mechanism. The lock of the lift arm by one lock mechanism is released.

According to the invention of claim 4, when the lift arm is unlocked and becomes movable,
The gripping mechanism is locked in the gripping position. That is, unless the gripping mechanism is locked, the lock of the lift arm is not released.

According to a fifth aspect of the present invention, in the garbage container reversing device for a refuse collection vehicle according to any one of the first to fourth aspects, the actuator controls the lift arm via the gripping mechanism disposed at the gripping position. It is characterized by moving from the reversing position to the standby position and moving the gripping mechanism from the gripping position to the release position. According to the fifth aspect of the present invention, the lift arm can be returned from the reverse position to the standby position and the gripping mechanism can be returned from the gripping position to the release position by driving the actuator.

According to a sixth aspect of the present invention, in the waste container reversing device for a refuse collection vehicle according to the fifth aspect, the lift arm is moved from the reversing position to the standby position, whereby the first lock mechanism is used. The lift arm is locked at the standby position, and the lock of the gripping mechanism by the second lock mechanism is released.

According to the sixth aspect of the present invention, as the lift arm is returned to the original standby position and the gripping mechanism is returned to the original release position, the lock release and the lock are returned to the original state, respectively. Can be restored.

According to a seventh aspect of the present invention, in the garbage container reversing device for a refuse collection vehicle according to any one of the first to sixth aspects, the gripping mechanism moves upward from below with movement from the release position to the gripping position. An engaging arm for swinging and gripping a part of the refuse container, the engaging arm taking an open position corresponding to the release position of the gripping mechanism, and the lift in the open position; A fall prevention recess is formed between the arm and the arm.

According to the seventh aspect of the invention, even if the lock of the gripping mechanism is released during the movement of the lift arm, the refuse container can be supported by the fall prevention recess.

According to an eighth aspect of the present invention, in the refuse container reversing device for a refuse collection vehicle according to any one of the first to seventh aspects, the actuator is a lifting / lowering cylinder, and the rod of the lifting / lowering cylinder extends the gripping mechanism. Movement from the release position to the gripping position, and movement of the lift arm from the standby position to the inversion position, and movement of the lift arm from the inversion position to the retreat position by the shortening operation of the rod, And moving the gripping mechanism from the gripping position to the release position.

According to the eighth aspect of the present invention, all operations of the lift arm and the gripping mechanism can be performed by the extension operation and the contraction operation of one elevating cylinder, so that the configuration can be simplified.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a waste container reversing device for a garbage truck according to the present invention will be described below with reference to FIGS.

FIG. 1 is a side view showing an outline of a refuse collection vehicle equipped with a garbage container reversing device 1. The garbage container reversing device 1 includes a refuse collection box A provided at the rear of the refuse collection vehicle. It is mounted below the input port A1.

FIG. 2 is a perspective view of the waste container B which is inverted by the waste container inverting device 1. The garbage container B is formed in a substantially rectangular parallelepiped shape, and is provided with an opening B1 at the upper portion for charging or discharging dust. Further, gripping pins B2 protrude outward from the left side surface B4 and the right side surface B5 of the garbage container B on the front side surface B3 side and above the center. These gripping pins B2 are connected to engagement arms 24 of a gripping mechanism 20 described later.
Is to be gripped.

FIG. 3 shows a side view of the refuse container reversing device 1. The refuse container reversing device 1 is provided with a lift arm 10 swingably supported by a trash input box A and a grip supported by the lift arm 10. Mechanism 20 and trash input box A
Lifting cylinder 30 serving as an actuator interposed between the arm and the holding mechanism 20, a dust input box A and a lift arm 1
0, and a second lock mechanism 50 interposed between the lift arm 10 and the gripping mechanism 20 as main components.

In the figure, in order to prevent the figure from being complicated, all of these main constituent members are shown by solid lines regardless of the position in the left-right direction. In addition,
This applies to FIGS. 4 to 9 described later. These main constituent members are formed of plate-like members having a thickness direction in the left-right direction (the front-back direction in the figure) except for the lifting cylinder 30. It is arranged so as to be adjacent to each other in the left-right direction, and the positional deviation in the left-right direction may be about the thickness of each member. Further, the garbage container reversing device 1 is provided with the same configuration as the lift arm 10 to the second lock mechanism 50 shown in FIG. 1 also on the right side of the refuse input port A1, but these are not shown. . In addition, hereinafter, only the left side will be described unless necessary.

FIG. 3 shows the waste container reversing device 1 immediately before starting to hold the waste container B. In this state, the elevating cylinder 30 is in a state where the rod 31 is most shortened (hereinafter, referred to as a “most contracted state”). Based on the retracted state of the lifting cylinder 30, the position and state of each component are determined by the lift cylinder 10 in the standby position 10A, the gripping mechanism 20 in the release position 20A, the first lock mechanism in the locked state 40A, and the second lock mechanism 50. Is unlocked state 50A
And

Hereinafter, focusing on FIG. 3, FIG. 4 to FIG.
1 and FIG. 2 and FIG.
Will be described in order.

The lift arm 10 is formed of a plate-like member, and the base end 11 of the lift arm 10 is rotatably supported by a bracket A3 protruding rearward from the dust box A. Further, the front end 12 of the lift arm 10 is in contact with a part of the trash input box A. Furthermore,
One end of a connecting rod 61 is fixed to the distal end 13 of the lift arm 10. The connecting rod 61 is arranged to extend in the left-right direction, and is connected to the left lift arm 10.
And a right-hand lift arm (not shown), and the other end is fixed to the tip of the right-hand lift arm.

Immediately behind the connecting rod 61, a push-up rod 62 is arranged in parallel with the connecting rod 61. This push-up rod 6
Numeral 2 is fixed to the connecting rod 61 via an attachment member (not shown), and pushes up the front side surface B3 (see FIG. 2) of the garbage container B obliquely rearward when the garbage container B is turned over, which will be described later. It acts on.

The entire lift arm 10 is swingably supported by a dust bin A, and has a lower standby position 10A and an upper reversal position 10B with the base end 11 as a center.
(See FIG. 7), and the connecting rod 61 and the push-up rod 62 also move integrally with the lift arm 10.

The gripping mechanism 20 includes a first link 21 and a second link 21.
A link 22, a third link 23, an engagement arm 24,
And a gripping member 25.

The first link 21 has an intermediate portion 21c swingably supported by the lift arm 10, and a base end 21a swingably connected to a distal end of a rod 31 of a lifting cylinder 30 which will be described later. Further, the distal end 21b is swingably connected to the proximal end 22a of the second link 22.

The second link 22 has a proximal end 22a pivotally connected to the distal end 21b of the first link 21.
Further, the distal end portion 22b is swingably connected to the proximal end portion 23a of the third link 23. Base end 2 of second link 22
An engagement portion 22c that engages with and disengages from a first lock mechanism 40 and a second lock mechanism 50, which will be described later, protrudes from a front portion 2a.

The third link 23 has a base end 23a pivotally connected to the distal end 22b of the second link 22. The distal end 23b is swingably supported by the lift arm 10 and has an engagement arm. The base end 24a of 24 is fixed.

The engagement arm 24 is a member formed by bending upward in a substantially L-shape. The base end 24 a is supported by the lift arm 10 so as to be swingable. It is fixed to the tip 23b. Further, the engagement arm 24 has a linear engagement surface 24b on the top surface on the distal end side, and when the gripping mechanism 20 sets the position of the engagement arm 24 in the release position shown in FIG. When the joint arm 24 is located at the open position 24A,
V-shaped fall prevention recess 27 between lift arm 10
To form The third link 23 and the engagement arm 24 are integrally formed, and are swingably supported by the lift arm 10.

The gripping member 25 is fixed to the inside of the lift arm 10 via a mounting member 26. The gripping member 25 has projections 25a and 25b formed rearward at upper and lower portions of a rear end portion thereof, and an engagement recess 25c is formed between the projections 25a and 25b. The holding pin B2 of the garbage container B is sandwiched between the engaging surface 24b of the engaging arm 24 located at 20B (see FIG. 5).

The entire gripping mechanism 20 is mounted on the lift arm 10 described above, and moves in the same manner as the lift arm 10 moves. Further, when the first link 21 rotates clockwise around the central portion 21c in the illustrated manner, the third link 23 and further the engagement arm 24 rotate counterclockwise through the second link 22 when the first link 21 rotates clockwise around the central portion 21c. Then, the gripping member 25
Is configured so as to sandwich the gripping pin B2 of the garbage container B.

The raising / lowering cylinder 30 has a base end 32 fixed to the garbage charging box A, and is disposed such that the rod 31 on the tip side is directed obliquely upward and rearward. Rod 31
The base end 21a of the first link 21 is swingably connected to the distal end of the first link 21. Set the center line of the lifting cylinder 30 to 3
0a, the elevating cylinder 30 is connected to the center line 30a.
Is the swing center 11 of the base end 11 of the lift arm 10
a.

The elevating cylinder 30 moves the gripping mechanism 20 from the release position 20A to the gripping position 20B (see FIG. 5) by extending the rod 31 from the most contracted state.
Further, the lift arm 10 is configured to move from the standby position 10A to the reverse position 10B (see FIG. 7).
By shortening the rod 31 from the most extended state (hereinafter referred to as the “extended state”), the above-described reverse, that is, the lift arm 10 is moved from the reversal position 10B to the standby position 1
0A, and further moves the holding mechanism 20 from the holding position 20B to the release position 20A. In addition,
The operation of the lifting cylinder 30, the lift arm 10, and the gripping mechanism 20 will be described later in detail together with the operation of the first lock mechanism 40 and the second lock mechanism 50.

The first lock mechanism 40 includes the first lock member 4
1, a lock pin 42, and a compression spring 43. The first lock member 41 is swingably supported by the front end 12 of the lift arm 10. The first lock member 41 is formed in a rod shape that is substantially long in the front-rear direction, and a lock portion 41a that protrudes downward is formed at a front end portion.
A release portion 41b formed of an inclined surface is formed at an upper portion of the rear end. The lock pin 42 on the left
The lock portion 41a engages and disengages with the lock pin 42, and the release portion 41b engages and disengages the engagement portion 22c of the second link 22 of the gripping mechanism 20. I have.

The first lock member 41 is connected to the lift arm 10
Are urged counterclockwise by a compression spring 43 interposed between the lock state 4 and the lock state 4 shown in FIG.
It is held at 0A. In addition, a play S is provided between the lock portion 41a of the first lock member 41 and the lock pin 42 in the front-rear direction, and even in the locked state, the lift arm 10 is moved by a distance corresponding to the play S in FIG. It is possible to move as shown in FIG. In the present invention, in consideration of the play, that is, both of FIGS. 3 and 4 of the lift arm 10 are referred to as standby positions.

The second lock mechanism 50 includes the second lock member 5
1 and a compression spring 52, and the second lock member 51
The lift arm 10 is supported by the front end portion 12 so as to be swingable coaxially with the first lock member 41.

The second lock member 51 is formed in a substantially L-shape, has a lock portion 51a projecting upward at a rear end portion, and an inclined surface is formed at an upper portion of the lock portion 51a. A release portion 51b is formed at the upper end. The length of the release portion 51b can be adjusted by taking in and out the bolt, whereby the second lock member 51b can be adjusted.
The second lock member 51 adapted to perform the angle adjustment of the mounting angle is urged counterclockwise by a compression spring 52 interposed between the second lock member 51 and the lift arm 10. Is held in the unlocked state 50A shown in FIG.

Next, the operation of the refuse container reversing device 1 thus configured will be described with reference to FIGS.

First, the elevating cylinder 30 is brought into the most contracted state. As a result, as shown in FIG.
Is the standby position 10A, the gripping mechanism 20 is the release position 20A, the engaging arm 24 of the gripping mechanism 20 is the lower position 24A, the first lock mechanism 40 is in the locked state 40A, and the second lock mechanism 50
Is in the unlocked state 50A.

The trash container B is set behind the trash can A so as to face the trash container reversing device 1. At this time, the holding pin B2 of the garbage container B is made to correspond to the engaging recess 25c of the holding member 25 of the holding mechanism 20.

Next, as shown in FIG.
When the 0 rod 31 is extended in the direction of the arrow K1, the lift arm 10 slightly rotates about the base end 11 in the direction of the arrow K2. This rotation is performed by the lock portion 41 of the first lock member 41.
The operation is performed until a is engaged with the lock pin 42, that is, for the play S shown in FIG.

By this engagement, the lift arm 10 is locked at the standby position 10A, and is prevented from moving in the direction of arrow K2. Thus, the extension of the rod 31 in the direction of the arrow K1 results in the rotation of the engagement arm 24 in the direction of the arrow K3. That is, when the rod 31 is extended in the direction of the arrow K1, the first link 21 rotates in the direction of the arrow K4 about the central portion 21c, and the rotation causes the second link 22 and the third link 23 to rotate.
, The engagement arm 24 is rotated in the direction of the arrow K3 about the base end portion 24a.

When the rod 31 is further extended, FIG.
As shown in (2), the entire gripping mechanism 20 is moved to the gripping position 20B, and the engaging arm 24 sandwiches the gripping pin B2 of the dust container B between the engaging surface 24b and the engaging recess 25c of the gripping member 25. . At this time, the front side surface B3 of the garbage container B contacts the push-up bar 62. In this way,
When the gripping mechanism 20 is moved to the gripping position 20B, the second
The engaging portion 22c of the link 22 is locked by the lock portion 51a of the second lock member 51 and locked at the grip position 20B. Further, the engagement portion 22c of the second link 22 engages with the release portion 41b of the first lock member 41, and
1 to swing the lock portion 41a with respect to the lock pin 42.
Is released, whereby the lift arm 10
Movement in the direction of arrow K5 is enabled.

Further, when the rod 31 extends in the direction of the arrow K1, as shown in FIG. 6, the lift arm 10 is moved through the arrow K6 via the gripping mechanism 20 locked at the gripping position 20B.
, The garbage container B is gradually turned upside down.

Then, as shown in FIG. 7, when the rod 31 is in the most extended state, the lift arm 10 is moved to the reverse position 10B.
, Whereby the reversal operation of the garbage container B is completed, and the dust therein is discharged through the opening B1 into the dust inlet A1.
It is thrown into.

After the dust is input, as shown in FIG. 8, when the rod 31 in the extended state is shortened in the direction of arrow K7, the lift arm 10 descends and returns to the standby position 10A. Accordingly, the second lock member 51 rotates in the direction of the arrow K8 when the release portion 51b comes into contact with the garbage truck A, and the second link 22
The engagement of the lock portion 51a with the engagement portion 22c is released. Thus, the grip member 20 can be moved.

When the rod 31 is further shortened in the direction of arrow K7, as shown in FIG. 9, the engaging portion 22c is disengaged from the release portion 41b of the first lock member 41, and the lock portion 41a is engaged with the lock pin 42a. Then, the lift arm 10 is locked at the standby position 10A. Further, due to the shortening of the rod 31, the engagement arm 24 rotates in the direction of the arrow K9, and the gripping of the gripping pin B2 of the garbage container B is released.

As described above, only when the gripping pin 20 of the garbage container B is completely gripped by the gripping mechanism 20, that is, when the gripping mechanism 20 is moved to the gripping position 20B and further locked. Since the lift arm 10 at the standby position 10A is unlocked and allowed to move, the lift arm 10 moves without the gripping mechanism 20 completely gripping the garbage container B, or the lift arm 10 The garbage container B is prevented from coming off the gripping mechanism 20 during the movement.

In the above-described embodiment, an appropriate play (for example, play S shown in FIG. 3) is provided between the members in order to improve the workability of the waste container reversing device 1.

In the garbage container reversing device 1 described above, the lift arm 10, the gripping member 20, the lifting cylinder 30, the first lock mechanism 40, and the second lock mechanism are mounted on both the left and right sides of the dust inlet A1. However, instead of mounting the garbage container B on the left and right sides by appropriately changing the shape of the garbage container B,
The present invention is not limited to the above embodiment, and can be variously modified without departing from the spirit of the invention.

[0060]

According to the above-described garbage container reversing device for a garbage truck according to the present invention, the lift arm is reversed from the standby position after the gripping mechanism is moved from the release position to the gripping position by driving the actuator. When the lift arm is moved to the position, the lift arm is locked to the standby position by the first lock mechanism during the movement of the gripping mechanism, so that the lift arm does not needlessly move from the standby position during the movement of the gripping mechanism. In other words, during the movement of the gripping mechanism in which the gripping of the garbage container is not completed by the gripping mechanism, the lift arm does not start the upside down operation of the garbage container, and the gripping mechanism is not moved during the movement of the lift arm. Since it is locked at the gripping position by the second lock mechanism, it does not move unnecessarily from the gripping position during the movement of the lift arm. That is, during the reversal operation of the garbage container by the lift arm,
The holding of the garbage container by the holding mechanism is not released. As a result, the garbage container can be gripped by a continuous series of operations of the actuator, and a simple configuration capable of inverting the garbage container, but the reversal operation of the garbage container by the lift arm is performed unless the garbage container is completely gripped. By not performing this operation, it is possible to effectively prevent the waste container from falling during the reversing operation.

[Brief description of the drawings]

FIG. 1 is a left side view of a refuse collection vehicle equipped with a waste container reversing device according to the present invention.

FIG. 2 is a perspective view of a waste container to be handled by the waste container reversing device.

FIG. 3 is a left side view of the waste container reversing device.

FIG. 4 is an explanatory view of the operation of the waste container reversing device.

FIG. 5 is an explanatory view of the operation of the waste container reversing device.

FIG. 6 is an operation explanatory view of the waste container reversing device.

FIG. 7 is an operation explanatory view of the waste container reversing device.

FIG. 8 is an operation explanatory view of the waste container reversing device.

FIG. 9 is an operation explanatory view of the waste container reversing device.

FIG. 10 is a perspective view showing a configuration of a conventional waste container reversing device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 garbage container reversing device 10 lift arm 10A standby position 10B reversing position 20 gripping mechanism 20A release position 20B gripping position 22c engaging part 24 engaging arm 24A open position 27 fall prevention recess 30 lifting cylinder (actuator) 31 rod 40 first lock Mechanism 50 Second lock mechanism A Dust input box A1 Dust input port B Garbage container B1 Opening B2 Grip pin

Claims (8)

[Claims] 1. A garbage container inverting a garbage collection vehicle in which garbage in the garbage container is thrown into the garbage input box of the garbage collection vehicle through the opening by gripping and reversing the garbage container having an upper opening. In the apparatus, a lift arm that is swingably supported by the garbage input box and moves between a lower standby position and an upper reversing position for reversing the waste container, and a garbage container supported by the lift arm A gripping mechanism that moves between a release position for releasing the gripping of the garbage container and a gripping position for gripping the garbage container, interposed between the dust collection vehicle and the gripping mechanism, and moving the gripping mechanism from the release position. Following the movement to the gripping position, the lift arm is moved from the standby position to the reversing position via the gripping mechanism disposed at the gripping position. A cuvator, interposed between the garbage truck and the lift arm,
A first lock mechanism that locks the lift arm at the standby position while the gripping mechanism is moving with respect to the lift arm; and a first lock mechanism that is interposed between the lift arm and the gripping mechanism. A garbage container reversing device for a refuse collection vehicle, comprising: a second lock mechanism for locking the gripping mechanism to the gripping position. 2. The first lock mechanism locks the lift arm to the standby position during movement of the gripping mechanism from the release position to the gripping position, and prevents the lift arm from moving. When the mechanism is disposed at the grip position, the locked state is released to allow the movement of the lift arm. The second lock mechanism is configured such that the grip mechanism is moved from the release position to the grip position. 2. The lock mechanism according to claim 1, wherein the grip mechanism is locked at the grip position, and the grip mechanism is prevented from moving with respect to the lift arm while the lift arm is moving between the standby position and the reversing position. A garbage container reversing device for a garbage truck described in the above. 3. When the gripping mechanism is moved from the release position to the gripping position, the gripping mechanism is engaged with the first lock mechanism to release the locked state, and is engaged with the second lock mechanism. The garbage container reversing device for a refuse collection vehicle according to claim 2, further comprising an engaging portion that locks the waste container. 4. The lock device according to claim 3, wherein the engagement portion unlocks the lift arm by the first lock mechanism after locking the gripping mechanism by the second lock mechanism. A garbage container reversing device for a garbage truck as described. 5. The actuator moves the lift arm from the reversing position to the standby position via the gripping mechanism disposed at the gripping position, and moves the gripping mechanism from the gripping position to a release position. The garbage container reversing device for a refuse collection vehicle according to claim 1, wherein 6. When the lift arm is moved from the reverse position to the standby position, the lift arm is locked at the standby position by the first lock mechanism, and the gripping by the second lock mechanism is performed. The garbage container reversing device for a refuse collection vehicle according to claim 5, wherein the mechanism is unlocked. 7. The gripping mechanism has an engagement arm that swings upward from below in accordance with movement from the release position to the gripping position to grip a part of the garbage container. The joint arm takes an open position corresponding to the release position of the gripping mechanism, and forms a fall prevention recess between the lift arm and the lift arm at the open position.
6. A garbage container reversing device for a refuse collection vehicle according to 6. 8. The actuator according to claim 1, wherein the actuator is an elevating cylinder, and the rod of the elevating cylinder extends to move the gripping mechanism from the release position to the gripping position, and move the lift arm from the standby position to the reversing position. Moving the lift arm from the reversing position to the retracted position and moving the gripping mechanism from the gripping position to the release position by shortening the rod. Item 9. A garbage container reversing device for a refuse collection vehicle according to any one of Items 1 to 7.