JPH07257705A - Waste container overturning device in garbage collector - Google Patents

Abstract

PURPOSE:To provide a waste container overturning device for a dust collecting vehicle by which even a heavy waste container overturning device can be easily turned between a storage position and a work position so as to reduce a burden of a worker. CONSTITUTION:In a dust collecting vehicle in which a dust throw-in box 1 provided with a dust loading device is connected to the rear opening part of the dust storage box mounted on a vehicle frame, in the lower end edge 12 of a throw-in opening part, 11 in the dust throw-in box 1, a waste container overturning device 2 which overturns a waste container A while lifting and holding it so as to throw in waste inside the waste container A into the dust throw-in box 1 is arranged freely rotationally between a work position projecting backward of the dust throw-in box 1 and a storage position positioned in the throw-in opening part of the dust throw-in box 1. In the rotation center part 32 of the waste container overturning device 2, an energizing member 9 helping the rotational operation of the waste container overturning device 2 is arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust container reversing device for a garbage truck, which inverts a dust container into a dust throwing box of the garbage truck to throw in the dust in the dust container.

[0002]

2. Description of the Related Art Conventionally, there has been provided a refuse collecting vehicle in which a refuse throwing box provided with a refuse loading device is connected in a tiltable manner at a rear opening of a dust storing box mounted on a vehicle frame. And
A dust container reversing device that lifts the dust container while reversing the dust container so that the opening of the dust container faces the throwing opening is provided at the throwing opening of the dust throwing box. Was configured to be thrown into the dust throwing box (eg, US Pat. No. 380427).
(See Japanese Patent No. 7).

[0003]

However, since the above-mentioned conventional dust container reversing device is always arranged in a projecting position behind the dust throwing box, this projecting placement is performed when the dust throwing operation is not performed, for example, while traveling. There is a risk that the trash container reversing device that has been removed may interfere with other things, causing damage and danger of the trash container reversing device, and a problem that the structure of the trash container reversing device is complicated. . In addition, the length of the vehicle is regulated by law,
I had to deal with this.

Therefore, by providing the dust container reversing device rotatably between a working position in which it is projected behind the dust throwing box and a storage position in which it is placed in the throwing opening of the dust throwing box, the above-mentioned problems occur. Although solved, the work of rotating the trash container reversing device between the work position and the storage position by the operator is heavy because the weight of the trash container reversing device is relatively heavy. There has been a problem that the burden is heavy in the initial stage of rotating to the storage position or from the working position to the storage position.

[0005]

In the dust container reversing device for a refuse collecting vehicle according to the present invention, a dust throwing box provided with a dust loading device is continuously provided at a rear opening of a dust storing box mounted on a vehicle frame. In the garbage collection vehicle, a dust container reversing device that throws the dust in the dust container into the dust throwing box at the lower edge of the throwing opening of the dust throwing box while lifting the dust container while holding it up A trash container that is rotatably provided between a work position projecting rearward of the dust throwing box and a storage position arranged in a throwing opening of the dust throwing box, and the dust container reversing device is provided with a dust container at a rotation center thereof. A biasing member for assisting the turning operation of the reversing device is provided.

Further, in the dust container reversing device, a base rotatably supported at a lower end edge of a throwing opening of the dust throwing box, an operating arm having one end pivotally supported by the base, and An inversion assisting arm, a support base on which the other ends of the operating arm and the inversion assisting arm are pivotally supported, and an upper locking piece and a lower locking piece that are provided above and below the support base and are detachable from the waste container. It consists of

Further, the refuse container reversing device is provided with a first securing member for securing at the working position and a second securing member for securing at the storage position.

[0008]

When the dust throwing operation is performed, the dust container reversing device is pivotally arranged at a work position projecting to the rear of the dust throwing box and fastened by the first fastening member. The trash container reversing device is rotationally arranged at the storage position in the throwing opening of the dust throwing box and fastened by the second fastening member. When the dust container reversing device is rotated, the urging force of the urging member acts in a direction to assist the rotation operation, and the operator can easily perform the rotation operation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic structure of a refuse collecting vehicle according to the present invention.

In FIG. 1, reference numeral 1 denotes a dust throwing box which is continuously mounted on a rear end opening of a dust storing box (not shown) mounted on the vehicle frame.

A dust loading device (not shown) is provided in the dust throwing box 1, and the dust throwing box 1 is loaded into the dust throwing box 1 through a charging port (feeding opening) 11 formed in the dust throwing box 1. The dust is compressed and loaded in the dust storage box.

A discharge plate (not shown) slidable in the front-rear direction is arranged in the dust throwing box 1. An expandable cylinder (not shown) is connected between the discharge plate and the front part of the dust storage box, and the expansion plate allows the discharge plate to reciprocate back and forth in the dust storage box. The dust is loaded into the dust storage box by the dust loading device, the dust is compressed, and the dust stored in the dust storage box is discharged.

A dust container reversing device 2 is provided at the lower end edge of the charging port 11 of the dust charging box 1.

As shown in FIGS. 1 to 4, the dust container reversing device 2 inverts the dust container A and puts the dust contained in the dust container A into the dust throwing box 1 through the feeding port 11. The base 3 attached to the lower end edge of the input port 11 of the dust throwing box 1, the operating arm 4 and the reversal auxiliary arm 5 each having one end pivotally supported by the base 3, and the operating arms 4 And a support base 6 on which the other end of the reversing auxiliary arm 5 is pivotally supported, and an upper locking piece 7 and a lower locking piece 8 which are provided on the upper and lower sides of the support base 6 and can be engaged with and disengaged from the dust container A. Has been done.

An arm 3a is projectingly provided on an upper portion of a front surface of the base 3, which is on the dust throwing box 1 side, and the arm 3a forms a lower end edge of the throwing port 11 by a mounting member 12.
Is rotatably supported by a pivot pin 32 on the upper surface of the bracket via a bracket 31.

A rod end 42 of a cylinder 41, the base end portion of which is pivotally supported by the base 3, is pivotally supported at a midway portion of the operating arm 4 through a connecting member 43, so that the cylinder 41 extends and contracts. By rotating the operating arm 4 up and down, the support base 6 is inverted together with the action of the reversing auxiliary arm 5 described later, and the support base 6 is locked via the vertical locking pieces 7 and 8. Lift the trash container A upside down.

The reversal assist arm 5 assists the reversal of the support base 6 by the rotation of the actuating arm 4, as described above. Inversion auxiliary arm 5 pivotally supported by a support base 6
The other end of the hook is pivotally supported by the base 3 and extends in a hook shape.
One end of an actuating link 51 that is pivotally supported by a bracket 52 is pivotally supported.

The upper locking piece 7 is constructed so as to be inserted and locked from below into a locking portion A1 formed on the upper side surface of the dust container A.

The lower locking piece 8 has a base end portion which is the support base 6.
Is rotatably supported at the lower part of the container, and the tip end thereof is formed into a hook shape so as to be locked from above by a locking pin A2 provided at the lower part of the side surface of the dust container A.

The lower locking piece 8 is the reverse auxiliary arm 5
It is configured to rotate up and down by the operation link 51 that is operated in accordance with the rotation of the above, and the tip end portion is locked to the locking pin A2 at the inversion midway position shown by the two-dot chain line in FIGS. There is.

The trash container reversing device 2 thus constructed
As described above, since the base 3 is rotatably supported around the pivot pin 32 as described above, as shown in FIGS. 1 to 3, the work position protruding behind the dust throwing box 1 is set. When,
As shown in FIG. 4, it is configured so as to be rotatable with respect to a storage position which is arranged inside the throwing port 11 of the dust throwing box 1.

A spring (biasing member) 9 shown in FIGS. 5 to 7 is provided at the center of rotation of the dust container inverting device 2.

As the spring 9, a coil spring wound in a coil shape is used, and is inserted and arranged in the middle of the pivot pin 32. The spring 9 has a fastening member 91 whose one end 9a is fixed to the arm 3a as shown in FIG.
The other end portion 9b is fixed to the fixing member 92 fixed to the bracket 31 side as shown in FIG. The spring 9 is set so that the arm 3a is in the position X of the chain double-dashed line shown in FIG. 6 and the screw torque does not act on the spring 9. That is, at the position X indicated by the chain double-dashed line in FIG. 6, no reaction force acts on the spring 9.

Therefore, when the arm 3a rotates upward or downward from this position X, a reaction force corresponding to the amount of rotation acts on the arm 3a.

Reference numeral 21 in FIGS. 1 to 4 denotes a stopper for preventing the dust container reversing device 2 from rotating toward the dust throwing box 1 side at the storage position.

The trash container reversing device 2 is secured and held by the first securing member 100 and the second securing member 110 at the working position and the storage position.

As shown in FIG. 3, the first lashing member 100 includes a lashing pin 101 provided on the mounting member 12 side, and a base 3.
And a stopper 103 engaged with the engaging portion 102 formed at the tip of the securing pin 101. By engaging the engaging portion 102 of the securing pin 101 with the stopper 103, The rotation of the dust container reversing device 2 is prevented and the dust container reversing device 2 is secured and held at the working position.

The securing pin 101 is fitted in a cylindrical body 105 fixed to the mounting member 12, and the engaging portion 102 is locked by a biasing member such as a spring (not shown) interposed in the cylindrical body 105. It is biased in a direction to engage with the stopper 103. Further, the securing pin 101 is provided with a grip portion 104 which is inserted through a hook-shaped through hole 106 formed in the cylindrical body 105, and the securing portion 104 biases the securing pin 101 into a biasing force of a biasing member. It is possible to hold the engaging portion 102 of the securing pin 101 at the position where it is disengaged from the stopper 103 by guiding the gripping portion 104 to the hook portion of the through hole 106 while guiding the gripping portion 104 to the cylindrical body 105 side. .

The second fastening member 110 is, as shown in FIGS. 2 and 4, an engaging piece 111 pivotally supported on the upper portion of the base 3 and an engaging piece fixed to the bracket 31 of the mounting member 12. 11
1 includes a hook portion 112 formed at the tip of the hook 1 and an engagement pin 113 that can be engaged and disengaged. By engaging the hook portion 112 of the engagement piece 111 with the engagement pin 113, the waste container reversing device 2 The rotation of the trash container is prevented and the trash container reversing device 2 is fixedly held at the storage position.

Further, below the mounting member 12, as shown in FIG.
Further, as shown in FIG. 4, a limit switch LS1 is provided for detecting the dust container reversing device 2 when it is placed in the working position. The limit switch LS1 is
When the waste container reversing device 2 is placed at the working position, its contactor comes into contact with the base 3 of the waste container reversing device 2 to switch from the closed state to the open state in the electric circuit of FIG. 8 described later. Is configured.

FIG. 8 shows an electric circuit provided with the limit switch LS1.

In FIG. 8, R1 and R2 are relays and r
1a is a relay switch that is closed by exciting R1;
r2b is a relay switch that is opened by exciting R2, SW is an ignition switch, LS2 is a limit switch that is closed when the PTO is driven, and F1 and F2.
Is a fuse.

Further, reference numeral 200 is an operation circuit of the dust loading apparatus connected via the relay switch r2b.

Next, the operation of the dust container reversing device 2 thus constructed will be described.

First, as shown in FIGS. 1 to 3, in a state in which the dust container reversing device 2 is pivotally arranged at the working position, the engaging portion 102 of the securing pin 101 is engaged with the stopper 103 to invert the dust container. Hold the device 2 in the working position.

Here, as described above, the dust container inverting device 2 is used.
In the state where the limit switch LS1 is fixedly held in the working position, the base 3 of the dust container reversing device 2 contacts the contact of the limit switch LS1, the limit switch LS1 is switched to the open state, and the relay R2 is demagnetized. As a result, the relay switch r2b is closed. Therefore, the dust loading device is in a state operable by operating an operation switch (not shown).

Then, the dust container A containing the dust is slightly lifted, the upper locking piece 7 of the support base 6 is inserted into the locking portion A1 of the dust container A from below, and both are locked.
The trash container A is mounted on the support 6.

Subsequently, by extending the cylinder 41 and rotating the operating arm 4 upward, the support base 6 is inverted together with the action of the reversing auxiliary arm 5, and the dust container A mounted on the support base 6 is rotated. Is turned over, and the dust in the dust container A is thrown into the dust throwing box 1 through the throwing port 11.

When the support table 6 reaches a substantially horizontal position as shown by the chain double-dashed line in FIGS. 1 and 2 during the reversing operation of the dust container A, the operation link 51 causes the reversing auxiliary arm 5 to move. By the turning operation, the reversing auxiliary arm 5 is bent, and thereby the lower locking piece 8 is rotated and the tip of the lower locking piece 8 is locked to the locking pin A2 of the dust container A. .

That is, the lower locking piece 8 supports the dust container A from this position to the inversion position shown by the one-dot chain line in FIGS. 1 and 2 to prevent the dust container A from falling.

Thus, while the dust in the dust container A is charged into the dust throwing box 1 by the dust container inverting device 2, the dust throwing device is operated to compress the dust thrown into the dust throwing box 1. Store in a dust container.

Next, when the dust throwing operation is completed, the dust container reversing device 2 is pivoted to the storage position as shown in FIG. 4, and the hook portion 112 of the engagement piece 111 is engaged with the engagement pin 113 at this storage position. And the trash container reversing device 2 is fixedly held.

As a result, the dust container reversing device 2 does not project to the rear of the dust throwing box 1 and does not interfere with other things during traveling, etc.
It is possible to prevent damage to the vehicle and improve safety.

Here, when the dust container reversing device 2 is placed in the working position, the spring 9 is twisted by an amount corresponding to the amount of rotation of the arm 3a from the position X to the working position. A reaction force for rotating the arm 3a toward the storage position is generated by the twisted amount. Therefore, when the dust container reversing device 2 is to be arranged from the work position to the storage position, the reaction force described above assists the work in the initial state of this rotation, and the storage work of the dust container reversing device 2 is facilitated. Can be done.

Further, when the dust container inverting device 2 is arranged from the working position to the storage position, the spring 9 is
The arm 3a is twisted in a direction opposite to the above by an amount corresponding to the amount of turning of the arm 3a from the position X to the storage position, and the arm 3a is turned to the working position side by the twisted amount. There is a reaction force. Therefore, when the dust container inverting device 2 is to be placed from the storage position to the working position, the reaction force acting in the initial state of the rotation assists the work, and the storage work of the dust container inverting device 2 is facilitated. Can be done.

Thus, the spring 9 assists the turning operation of the dust container reversing device 2 between the storage position and the working position by the biasing force thereof, and at the time of turning to the storage position and the working position. When X is exceeded, a reaction force of the spring 9 is generated in a direction opposite to the rotation direction, and thus this reaction force can alleviate the impact placed at the storage position and the working position.

Further, when the dust container reversing device 2 is placed in the storage position, the limit switch LS1 is switched from the open state to the closed state, so that the relay R2 is excited and the relay switch r2b is opened so that the dust is removed. The loading device is inoperative. Accordingly, when the dust container reversing device 2 is arranged at the storage position, the dust loading device does not operate due to an erroneous operation or the like, and it is possible to prevent the dust container reversing device 2 from being damaged by the operation of the dust loading device.

In this example, one spring 9 is used, but the present invention is not limited to this, and two springs may be provided at both ends of the pivot pin 32, or the spring 9 may be provided. The type of is not limited to coil springs,
If possible, a torsion bar, a leaf spring or the like may be used.

Further, although the operation of the dust loading device is disabled when the dust container reversing device 2 is placed in the storage position, it is not limited to the dust loading device, and other bodywork such as the operation of the discharge plate can be used. The operation may be disabled.

Further, the limit switch LS1 may be provided inside the dust throwing box 1 so as to detect when the dust container inverting device 2 is arranged at the storage position.

The limit switch LS1 is a switch that switches from the closed state to the open state with the dust container reversing device 2 in the storage position, and when the dust container reversing device 2 is in the storage position. In addition, the relay R2 may be demagnetized and the relay switch r2b may be opened so that the dust loading device is inoperable.

[0053]

As described above, according to the present invention, the urging member for assisting the rotation operation of the trash container reversing device is provided at the center of the rotation of the trash container reversing device. When the reversing device is rotated, the urging force of the urging member acts in a direction to assist the rotation operation, and even a heavy dust container reversing device can be easily rotated, thereby reducing the burden on the operator. You can

[Brief description of drawings]

FIG. 1 is a side view showing a dust container reversing device for a garbage truck according to the present invention.

FIG. 2 is an enlarged side view showing a dust container reversing device of a garbage truck.

FIG. 3 is a perspective view showing a dust container reversing device of the garbage truck.

FIG. 4 is an enlarged side view showing the dust container reversing device arranged at the storage position.

FIG. 5 is a plan view showing an arrangement state of a biasing member interposed in a rotation center part of the dust container inverting device.

6 is a side view taken along the arrow A in FIG.

FIG. 7 is a side view taken along the arrow B in FIG.

FIG. 8 is an electric circuit diagram including a detector for detecting the position of the dust container inverting device.

[Explanation of symbols]

 1 Dust input box 11 Input port (input opening) 2 Waste container reversing device 3 Base 4 Operating arm 5 Reversing auxiliary arm 6 Support 7 Upper locking piece 8 Lower locking piece 9 Spring (biasing member) 100 1st Lashing member 110 Second lashing member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Yashiki 3-2-43 Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa Shinmeiwa Kogyo Co., Ltd. (72) Inventor Hiroshi Tokunaga Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa 3-243 Shinmeiwa Industry Co., Ltd. Specially-equipped vehicle division (72) Inventor Toshiyuki Tanaka 3-2-43 Shirute Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa Shinmeiwa Industry Co., Ltd. Specially-equipped vehicle division (72) Inventor Shunsuke Nakatsu Kanagawa Shinmeiwa Kogyo Co., Ltd. Specialized Vehicle Business Department, 3-4-2, Shitete, Tsurumi-ku, Yokohama-shi, Japan (72) Inventor Koichi Makihata 3-4-23 Shirite, Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa Shinmeiwa Industry Co., Ltd. (72) ) Inventor Daisuke Shibuya, 3-4-2, Shite, Tsurumi-ku, Yokohama-shi, Kanagawa Shinmeiwa Industry Co., Ltd.

Claims (3)

[Claims] 1. A refuse collection vehicle in which a refuse loading box equipped with a dust loading device is connected to a rear opening of a dust loading box mounted on a vehicle frame, wherein a lower end edge of the loading opening of the dust loading box is provided. Is a trash container reversing device that flips the trash container while holding it and inverts the trash container into the dust throwing box.
It is rotatably provided between a work position projecting rearward of the dust throwing box and a storage position arranged in the throwing opening of the dust throwing box. A dust container reversing device for a garbage truck, comprising a biasing member for assisting a turning operation of the device. 2. The trash container reversing device includes a base rotatably supported by a lower end edge of a throwing opening of the dust throwing box, an operating arm having one end pivotally supported by the base, and An inversion assisting arm, a support base on which the other ends of the actuating arm and the inversion assisting arm are pivotally supported, and an upper locking piece and a lower locking piece which are provided above and below the support base and which are detachable from the waste container. The garbage container reversing device for a garbage truck according to claim 1, which is configured by: 3. The trash container reversing device is provided with a first lashing member for lashing at the working position and a second lashing member for lashing at the storage position. Reversing device for garbage trucks.