JPS6026005Y2 - Rotating device for garbage input box in garbage collection vehicle - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotating device for a garbage input box in a garbage collection vehicle.

Generally, a garbage collection vehicle has a garbage storage box on the vehicle body chassis, and a garbage input box is attached to the rear opening of the waist. The rear opening of the garbage storage box is opened by rotating it upside down relative to the garbage storage box.

Therefore, as shown in FIG. 3, in the conventional device, a rotary plate 2 installed inside a garbage disposal box 1 is fixed by inserting a pin 3, and the tip of a pushing plate 4 is attached to the tip of the rotary plate 2. With the rear surfaces in contact, contract the rond of the hydraulic cylinder 5,
The garbage input box 1 is rotated as shown in the imaginary line to open the rear part of the garbage storage box 6.

However, in order to fix the rotary plate 2 in this way, a special pin 3 must be prepared, and the pin 3 must be inserted during rotation and pulled out after the work is completed, so the disadvantage is that the work is done on the surface. was there.

Note that the rotary plate 2 is connected to the push plate 4 as shown in FIG.
It rotates with a hydraulic motor to a position opposite to the tip of the cylinder, and stops at that position, and is temporarily fixed in the hydraulic circuit.However, since the garbage input box 1 is turned over while pressing the tip with the push plate 4,
A considerable force is applied to the rotary plate 2, and the upward component force is also large.

Therefore, if an unexpected situation such as a hydraulic leak occurs,
The rotating plate 2 will rotate upwards due to the pressing force of the pushing plate 4, and the reversing force of the garbage input box 1 will no longer be applied, and the input box 1 may fall, which is dangerous, so do not insert the pin 3. This mechanically prevents the rotating plate 2 from rotating upward, that is, from slipping.

The present invention has been developed to solve the above-mentioned drawbacks, and its purpose is to provide a simple structure in which engagement grooves and engagement protrusions are formed at the tips of the pushing plate and the rotary plate, respectively. By extending or contracting the rond of the hydraulic cylinder, these grooves and protrusions are fitted, and the garbage disposal box can be rotated safely and quickly simply by continuing to operate the cylinder.
To provide a rotating device for a garbage disposal box which can extremely easily open the rear part of the garbage storage box.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1a, the garbage storage box 6 is mounted on the vehicle body chassis, and the garbage input box 1 is attached to the rear opening thereof.

The garbage input box 1 is pivoted at its upper end 1a near the upper end of the rear opening of the garbage storage box 6, and is rotated upward as shown in FIG. 2 so that the opening can be opened. It has become.

A pushing plate 4 and a rotating plate 2 as shown in FIGS. 1 and 1C are installed inside the garbage input box 1, respectively.

The pushing plate 4 and the rotary plate 2 have widths that make contact with the inner surfaces of both left and right walls of the garbage disposal box 1, and the pushing plate 4 is pivoted at its approximately middle portion to the side walls via a support shaft 4a. On the other hand, the rotary plate 2 is also pivotally supported at its base end by the side wall via a rotary shaft 2a, and is rotatably driven by a hydraulic motor (not shown).

5 is a hydraulic cylinder, one end of which is connected to the pivot point 1a.
It is pivotally supported at the rear upper end of the garbage storage box 6 at a position eccentrically downward from the part of the rod, while the tip of the rod
The push plate 4 is pivotally attached to the upper end of the hydraulic cylinder 5, and can swing back and forth by extending and contracting the rod of the hydraulic cylinder 5.

Therefore, the rotary plate 2 scrapes up the garbage input from the input port opened on the rear surface of the garbage input box 1, and the pushing plate 4 further pushes the garbage into the garbage storage box 6.

An engagement groove 4b (see Fig. 1) having a U-shaped cross section is carved in parallel to the tip edge of the rear surface of the tip of the pushing plate 4 (the surface facing the rotating plate 2). , a protrusion 2 is provided on the tip edge of the rotary plate 2 so as to be able to engage with the retaining groove 4b with an appropriate margin.
b (see FIG. 1C) is provided in a protruding manner.

In the above configuration, when it is desired to invert the garbage storage box 1, first extend the rod of the hydraulic cylinder 5 and rotate the push plate 4 so that its lower end is in the forward direction (the garbage storage box 6).
The rotary plate 2 is rotated and stopped when the distal end protrusion 2b reaches a predetermined position facing the engagement groove 4b.

Note that this stopping operation may be controlled by a device that detects the rotational position of the rotary plate 2.

Next, when the rod of the hydraulic cylinder 5 is contracted, the pusher plate 4 rotates counterclockwise (FIG. 1a) around the support shaft 4a, and the engagement i4b formed on the rear surface of the lower end is connected to the rotating plate 4. When the rod of the hydraulic cylinder 5 is further contracted, the engagement 1114b of the pushing plate 4 pushes the rotary plate 2 while being engaged with the protrusion 2b of the rotary plate 2, as shown in FIG. As shown in the figure, the garbage input box 1 is reversely rotated upward to open the rear opening of the garbage storage box 6.

To return the garbage disposal box 1 to its original state, conversely, extend the rod of the hydraulic cylinder 5 to lower the garbage disposal box 1, return it to the predetermined position, and then press the retaining groove 4b of the push plate 4. is removed from the protrusion 2b of the rotating plate 2.

As described above, according to the present invention, the troublesome work of inserting and extracting bottles is unnecessary, and the pushing plate and rotating plate can be reliably engaged and fixed with a simple structure, which is extremely quick and safe. This has the effect of making it possible to invert the garbage disposal box.

[Brief explanation of the drawing]

Figure 1A is a side view of the garbage collection vehicle according to the present invention, Figures 1A and 1C are perspective views showing the pushing plate and rotating plate, respectively, Figure 2 is a side view when rotating in reverse, and Figure 3 is the conventional FIG. 2 is a sectional view of a main part of the device. 1... Garbage input box, 2... Rotating plate, 2
b... Protruding part, 4... Pushing plate, 4b.
...Engagement groove, 5...Hydraulic cylinder, 6.
...Garbage storage box.

Claims (1)

[Scope of utility model registration request] The garbage disposal box is attached so that it can be rotated around the rear opening of the garbage storage box. A pushing plate for pushing the garbage into the garbage storage box is installed inside the garbage input box, a hydraulic cylinder is interposed between the garbage storage box and the pushing plate, and the rotating cylinder is mounted on the rear surface of the tip of the pushing plate. A rotation device for a garbage input box in a garbage collection vehicle, characterized in that an engagement groove is formed in which a protrusion formed at the tip of a plate engages.