JPS6260321B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a garbage filling device for stuffing garbage, chips, and other garbage into a storage chamber.

[Conventional technology]

Conventionally, in a frame-shaped case connected to a storage chamber, there is a rotary blade that can scrape the garbage thrown onto the arcuate bottom plate toward the storage chamber, and the rotary blade scrapes the garbage into the storage chamber. A stuffing device is disclosed in US Pat. No. 3,044,644, which is equipped with a swinging blade whose upper end is pivotally supported so that it can be pushed in, and which is provided with separate power drive devices for driving the rotating blade and the swinging blade, respectively. It is known from the specification and Japanese Patent Application Laid-open No. 72016/1984.

[Problem that the invention seeks to solve]

This stuffing device rotates the rotary blades approximately once so as to scrape the input garbage toward the storage chamber, and stops the blades with the garbage scraping surface substantially continuous with the storage chamber floor. The returned swinging blade is pushed toward the storage chamber and rotated to pack the scraped garbage on the rotating blade into the storage chamber, so the efficiency of compressing and filling the garbage is low and The time required to load the garbage into the container becomes longer (9 to 13 seconds),
Moreover, since the swinging blade is cantilevered at its upper end, if the swinging blade has the required strength,
There were problems such as an increase in weight and a waste of driving power.

[Means for solving problems]

The present invention deals with this problem, and includes a power-driven rotary blade that scrapes the garbage thrown onto the arcuate bottom plate toward the storage chamber, in a frame-shaped housing connected to the storage chamber. In a garbage filling device equipped with a swinging blade whose upper end is pivotally supported so that the garbage scraped by a rotating blade can be pushed into a storage chamber, a garbage scraping surface 1b is provided on each side of the rotating blade 1. a cam surface portion adjacent to and similarly curved, and a cam radius centered on the rotation center of the rotary vane,
A swinging blade reciprocating cam 2 having an outer peripheral cam surface that gradually increases from the minimum cam radius part at the rotating blade base end 1c to the rotating blade tip is fixed, and the swinging blade 3 is placed on the side opposite to the storage chamber 4. A cam follower 15, which is provided with a means for always applying rotational force and is attached to both sides of the lower end of the swinging blade, is connected to the cam 2 on the side of the storage chamber from the center of rotation, regardless of the rotational phase of the rotating blade. It is characterized by being configured to engage with each other.

[Effect]

According to the above configuration, the cams 2 fixed to both sides of the rotary blade 1 are arranged on the dirt scraping surface 1b of the rotary blade.
A cam surface portion adjacent to and similarly curved, and a cam radius centered on the rotation center of the rotary vane sequentially increases from the minimum cam radius portion at the base end 1c of the rotary vane to the tip of the rotary vane. It has an increasing outer circumferential cam surface, and a swinging blade 3 is attached to the outer circumferential cam surface.
Since the cam followers 15 attached to both sides of the lower end are always engaged on the side of the storage chamber from the center of rotation of the rotating blade, the swinging blade makes one reciprocation in conjunction with one rotational movement of the rotating blade. While the cam follower 15 is not engaged with the curved cam surface portion similar to the dirt scraping surface 1b, the swinging blade 3 is returned to the rear,
Also, while the cam follower 15 is engaged with the cam surface portion, the rotary vane 1 compresses the input garbage between it and the bottom of the arc-shaped bottom plate 5c of the frame-shaped casing and the rising part on the storage chamber side. At the same time, the garbage is stuffed into the storage chamber 4 in cooperation with the pushing movement of the swinging blade 3. Moreover, the swinging blade 3 is
It is supported by the frame-shaped housing 5 at four points through the bearings at both ends of the upper end support shaft 14 and the engagement of the cam followers 15 on both sides with the cam 2 .

〔Example〕

The figure shows an embodiment of the present invention applied to a garbage collection vehicle. A frame-shaped housing 5 whose upper part is partitioned by a partition wall plate 6 and which is connected to a storage chamber 4 is a tailgate, and a garbage inlet is provided at the bottom of the rear end. 5b. The top of the front end of the frame-shaped casing 5 is pivoted 8 to the top of the rear end of the body 7 that forms the storage chamber 4, and the storage chamber 4 is formed between the frame-shaped casing and the body.
A hydraulic cylinder device (not shown) for opening and closing the rear end opening is installed, and the rear end of the body 7 is pivoted 10 to the rear end of the automobile body 9, so that the body 7 is mounted between the body 7 and the automobile body 9. It is the same as before that a hydraulic cylinder device (not shown) is installed to tilt the frame, and a lock mechanism is provided between the frame-like case 5 and the body 7 to lock the frame-like case at the position shown in the figure. be.

The rotary blade 1 has an airfoil-shaped cross section in which the dust collecting surface 1b is formed into an arcuate convex curved surface, and the base end portion 1c
Both ends of a shaft 11 inserted and fixed therein are rotatably supported on both side wall plates of the frame-shaped housing 5, and a motor such as a hydraulic motor is attached to one end of the shaft 11 and one side of the frame-shaped housing 5. A power transmission mechanism 13 such as a chain wheel transmission mechanism is used to interlock and connect the rotary blade 1 with the output shaft of 12, thereby enabling normal rotation and reverse rotation of the rotating blade 1 in the A direction.
Therefore, when the rotary blade 1 is driven in the direction A by the motor 12, the garbage D thrown in from the garbage inlet 5b as shown in FIG.
It can be raked toward the storage room 4 along line c.

The swinging blade reciprocating cam 2 is fixed to both ends of the rotating blade 1 at the same angular position, and the outer peripheral cam surface of the cam 2 is a curved cam surface portion similar to the dirt collecting surface 1b of the rotating blade 1. It has an egg shape consisting of an approximately involute curved cam surface. The angle θ (Fig. 1) formed by the tangent between the cam terminal at the tip of the rotary blade 1 and the adjacent dust scraping surface 1b is
It is preferable to set it at around 60 degrees.

The swinging blade 3 is rotatably supported on the upper side wall plate of the frame-shaped casing 5 on the side opposite to the storage chamber 4 with respect to the center of rotation of the rotating blade 1 with a support shaft 14 fixed to both sides of its upper end with the same axis line. The roller-shaped cam followers 15 attached to both sides of the lower end of the swinging blade connect the rotation centers of the swinging blade 3 and the rotating blade 1 with a straight line 0-
The swinging blade reciprocating cam 2 on the storage chamber 4 side from 0
A gap is maintained between the cam surface and the lower end of the swinging blade to prevent mutual interference between the cam surface and the lower end of the swinging blade. Therefore, the swinging blade 3 has a length that is substantially the same as or longer than the distance between the shafts 11 and 14, and constantly presses the cam follower 15 against the cam surface by its own weight.

Reference numeral 16 denotes a closing plate fixed on the rocking plate 3 facing the lower end of the partition plate 6. The closing plate 16 has an arcuate surface centered on the support shaft 14, and the arcuate surface is opposite to the lower end of the partition plate 6. Always face each other with a small gap between the bottom ends of the
Or sliding contact. Therefore, the partition plate 6, the closure plate 16,
The swinging blade 3 substantially blocks the entire width between the storage chamber 4 and the upper part of the frame-shaped casing 5. Note that Figure 2 shows only one half, but the other half is motor 1.
2. It is clear that the structure is completely symmetrical except for the power transmission mechanism 13.

Although the control device for the motor 12 is not shown, any device may be used as long as it detects, using a limit switch or the like, that the rotary blade 1 has reached the stop position shown in FIG. 3 or FIG. 8 and stops the motor. Can be adopted.

Next, the operation during garbage loading will be explained in more detail.
First, at the stop position shown in FIG. 3, garbage D is introduced from the input port 5b onto the arcuate bottom plate 5c, and the rotating blades 1,
When the cam 2 is rotated in the direction of arrow A by the motor 12, the swinging blade 3 is supported by the cam 2 for a while and is held near the most pushed position shown in FIG.

When the rotary blade 1 and the cam 2 continue to rotate in the direction A, the oscillating blade 3 is caused by its own weight and the reaction force of the garbage packed in the storage chamber 4 as the cam surface changes, as shown in FIG. When it is gradually returned in the direction of the arrow, and reaches the state shown in FIG. The rotary blade 1 begins to collect the garbage D toward the storage chamber 4 while compressing it.

Further, the rotary vane 1 and the cam 2 continue to rotate in the direction A, and in the second half of the raking movement of the dust D by the rotary vane, the roller 15 is pushed up by the curved cam surface portion similar to the raking surface 1b. Initially, the swinging blade 3 gradually rotates in the direction of the arrow in FIG. 6, and as shown in FIG. 7, the dust D on the rotary blade 1 is pushed into the storage chamber 4 while being scraped off. That is, the movement of raking the dust by the rotary blade 1 and the movement of pushing the dust by the swing blade 3 are performed simultaneously. In this way, when the swinging blade 3 reaches the most pushed position shown in FIG. 8 and the roller 15 rides on the cam terminal at the tip of the rotating blade 1, the motor 12 is automatically stopped and one cycle is completed.

〔Effect of the invention〕

According to the present invention, in the latter half of the dust scraping movement by the rotary blade 1, the dust pushing movement by the rocking blade 3 is simultaneously performed, so that the dust compressed while being scraped by the rotary blade 1 can be removed. is pushed directly into the storage chamber 4 by the oscillating vane 3, which improves the efficiency of compressing and packing the garbage and shortens the time required for one cycle of packing operation.
Since the swinging blade 3 is always supported at four points, it can be made lighter compared to a conventional cantilever type swinging blade, and this, together with the power savings resulting from this, is very effective.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line XX in FIG. 1, and FIGS. 3 to 8 are longitudinal sectional side views showing the process of operation. 9... Automobile body, 11... Shaft, 12... Motor, 13... Power transmission mechanism, 14... Support shaft, 15
...Cam follower.

Claims (1)

[Scope of Claims] 1. A frame-shaped housing connected to a storage chamber includes a power-driven rotary blade for scraping the garbage thrown onto the arcuate bottom plate toward the storage chamber, and a scraping blade by the rotary blade. In a garbage stuffing device equipped with a swinging blade whose upper end is pivotally supported so as to push the collected garbage into a storage chamber, there are two screws on both sides of the rotating blade 1, adjacent to the garbage scraping surface 1b thereof. An outer periphery having a similarly curved cam surface portion, and in which the cam radius around the rotation center of the rotary blade gradually increases from the minimum cam radius portion at the base end 1c of the rotary blade to the tip of the rotary blade. Oscillating blade reciprocating cam 2 with cam surface
A means is provided to fix the oscillating vane 3 and to always force the oscillating vane 3 to rotate in the direction opposite to the storage chamber 4. The cam followers 15 attached to both sides of the lower end of the oscillating vane control the rotational phase of the oscillating vane. A garbage packing device characterized in that it is configured to engage with the cam 2 on the side of the storage chamber from the center of rotation. 2. As a means for energizing the rotation of the swinging blade 3, the swinging center of the swinging blade is located above the frame-shaped casing 5 on the opposite side to the storage chamber 4 with respect to the rotation center of the rotating blade 1. A device for packing garbage as described in Scope 1. 3. The garbage packing device according to claim 1 or 2, wherein the garbage scraping surface 1b of the rotating blade 1 is formed into a convex curved surface.