JPS63272809A - Garbage disposal apparatus for sweeper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sweeper that cleans floors, road surfaces, etc. by rotating a rotary brush while running. This invention relates to improvements to garbage dumping equipment for dumping garbage that has been swept up in the area.

[Conventional technology]

In the case of a small sweeper such as a manual walking type or a self-propelled type, the dust bucket that has been swept with a rotary brush can be manually lifted and rotated to dump the garbage. In the case of a large sweeper like this, a dumping device using hydraulic pressure is used to lift up the dust bucket and dump the garbage.

However, the conventional garbage dumping device used in the above-mentioned sweeper uses the garbage sweep opening of the dust bucket as the garbage disposal opening, so when dumping garbage, first open the dust bucket.゛After lifting it up horizontally until it is straightened, it is necessary to tilt it in either direction, inward or outward, so that the sweep opening, that is, the waste day, is facing downward, and after dumping the garbage, it must be turned downward again. Since it is necessary to restore the dust bucket to its original position, the mechanism for performing these operations becomes complicated, increasing manufacturing costs.In addition, the dust bucket that has been lifted up must be tilted. There was also the problem that when the machine moved, dirt would scatter outside from the sweep opening.

Therefore, we installed a garbage disposal opening with an opening/closing lid on the opposite end of the dust bucket from the sweep opening, and when lifting the dust bucket, the whole body was tilted and rotated gradually so that the disposal opening faced downward. , a new garbage dumping device was devised in which the lid is opened and the garbage is disposed of when the lift-up is completed.

[Problem that the invention seeks to solve]

In the garbage dumping device configured as above, the mounting position of the lift arm that lifts up the dust bucket is eccentric,
In addition, by using the weight of the garbage collected in the dust bucket, the dust bucket can be tilted and rotated to a position with the disposal port facing downward as it is lifted up, so the lifted dust bucket can be tilted and rotated. It has the advantage of being economical as it eliminates the need for a cleaning device, and in addition, since garbage is not disposed of until the opening/closing lid is opened, it also has the advantage of solving the problem of garbage collected during lift-up being scattered around. ing.

However, the above-mentioned garbage dumping device requires another means (such as a cylinder) to open the lid when it is lifted up and facing downward, so even if the posture control device is not required, it is offset. However, the manufacturing cost is not much different from the conventional one, and since control is required to operate both the lift-up and opening/closing mechanisms in a timely manner, the structure becomes more complicated. there were.

Therefore, the technical problem of the present invention is that the lid is automatically opened as the dust bucket is lifted up, without the need for a special cylinder mechanism for opening and closing the lid, thereby preventing the collected garbage from being disturbed. The purpose is to make it possible to dispose of it without any waste.

[Means for solving problems]

The measures taken in the present invention to solve the above technical problems are as follows.

(1) A garbage disposal port with an opening/closing lid is provided at the tip of the dust bucket into which the rotary brush sweeps garbage.

(2) The above-mentioned dust bucket is attached to a lift arm which can be freely rotated by a cylinder and which lifts up the dust bucket with the garbage disposal port facing downward when the dust bucket is rotated twice.

(3) An endless chain that moves and rotates in conjunction with the rotation of the lift arm is strung between the sprockets attached to both ends of the lift arm, and in the middle of this endless chain, the opening/closing lid of the garbage disposal port is always installed. To provide a locking mechanism that locks in a closed state and releases the lock when the endless chain moves to open the opening/closing lid.

[Effect]

The above means works as follows.

■Element (1) above requires that the garbage swept into the dust bucket as the rotary brush rotates is disposed of by opening the lid through the disposal opening provided on the tip surface, not through the garbage sweeping opening. enable.

■The element (2) above is that when the lift arm is activated by the cylinder drive, the dust bucket that has collected the garbage will have its garbage disposal opening (closed with an opening/closing lid) facing downward.
It is gradually tilted and lifted up so that the sweep port faces upward, allowing garbage to be disposed of from the waste port.

■The factor (3) above is because the endless chain activates the locking mechanism and unlocks the opening/closing lid in conjunction with the lift-up operation of the dust bucket.

The opening/closing lid opens with its own blade without relying on the power of other devices,
The collected garbage can be naturally disposed of from the disposal port into a garbage container or the like, and the scattering of garbage into the surrounding area can be minimized as much as possible.

As described above, the above-mentioned technical problems can be solved by the above-mentioned means, and the problems of the above-mentioned conventional technology can be solved. A preferred embodiment of the device will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing an example of a sweeper implementing a garbage dumping device according to the present invention, in which a fixed front axle 2 is provided at the bottom of the vehicle body, generally indicated by reference numeral 1. The rear wheel 3, which drives and changes direction, rotates in the clockwise direction in the drawing between the front and rear wheels 2 and 3 as the vehicle body 1 runs, and a spherical surface or dirt on the road surface is attached to the front of the vehicle body 1. dust bucket 5
A rotary brush 4 that sweeps in from the sweep opening 5a is attached.

The dust bucket 5 has a filter chamber 5F in which a filter F is installed on the upper surface side, and a garbage disposal port 5 which can be opened and closed by an opening/closing lid 7 on the end surface opposite to the sweep opening 5a.
b is open.

The above-mentioned opening/closing lid 7 is attached to one side of the waste port 5b by an abbreviated arm 8 supported by a bin 8a so that it can be opened and closed freely, and a locking pin 9a is attached to the open end side of the opening/closing lid 7. A locking piece 9 with a locking pin 9a is attached, and by locking this locking pin 9a with a locking mechanism to be described later, the waste port 5b is maintained in a closed state.

Further, in FIG. 1, 1o indicates a side brush that is supported by an arm 10a and rotates, and 11 indicates an L-shaped support pipe that is foldably attached to the rear of the vehicle body 11 using a mounting shaft 14. 13
1 is a seat pivoted to the tip of a support pipe 11 using a shaft 12, and when this sweeper is used as a ride-on type, the support pipe 11 and the seat 13 are set as shown in the solid line in the figure. When used as a walking type, these are folded onto the top side of the vehicle body 1 as shown by the imaginary line in the figure.Therefore, the illustrated sweeper can be used as both a walking type and a boarding type. It is a sweeper that can be used for both walking and riding. In addition, 15 is a steering handle for the rear wheel 3, and a handle cylinder 16 to which this handle 15 and other various driving devices (not shown) are attached is connected to an adjustment handle 17.
The angle can be freely adjusted with respect to the vehicle body 1.

The garbage dumping device for a sweeper according to the present invention is used in the sweeper as described above, and when dumping the garbage collected into the dust bucket 5, the lift arm 2 is used as shown in FIG.
o to lift up the dust bucket 5 with the waste port 5b facing downward (sweeping port 5a facing upward), release the lock piece 9, open the opening/closing lid 7, and open the inside. It performs the operation of discharging the waste DS into the container 18, and its detailed structure is as follows.

That is, in FIGS. 3 and 4, 20 and 20 are rotatably attached to a support shaft 21 whose upper end side is attached to a support (not shown) provided in the body 1.

The dust box 5 consists of left and right lift arms rotatably pivoted by shafts 28 to rotary pieces 5e whose tip ends are attached to both sides of the lower part of the dust box 5 so as to be able to move up and down. It is supported by arms 20.20 so as to be able to move up and down.

Moreover, the above-mentioned rotating piece 5e has a long hole 5d formed in an arc shape.
It is attached to the dust box 5 by inserting the attachment shaft 5c therein.

The dust bucket 5 supported by the two left and right lift arms 20, 20 has its sweep opening 5a at the front of the vehicle body 1 directed toward the rotary brush 4.

In addition, the rear opening of the filter chamber 5F containing the filter F is installed in communication with the vacuum fan V side in the vehicle body 1, and while the dust swept by the rotary brush 4 is collected inside, the vacuum fan V The suction force is applied to the inside of the packet, and the fine dust sucked in by this suction action is collected by the filter F.

Incidentally, the dust collected by the filter F as described above.

It is dropped into the packet by a self-cleaning action or automatic shaking mechanism.

Next, 23 is a bracket fixed to the middle part of the operating shaft 22 installed between the upper ends of the left and right lift arms 20, 20, 24 is a rod 24a connected to the bracket 23 with a pin 24b, This figure shows a hydraulic cylinder whose lower end side is pivoted to a mounting portion 25 inside the fuselage 1. When the rod 24a protrudes due to hydraulic pressure, the operating shaft 21 rotates in the clockwise direction in the drawing.

27 is an interlocking sprocket rotatably attached to the upper end of the lift arm 20, and 30 is an interlocking sprocket 29 attached to the distal end of each lift arm 20 using the shaft 28. This chain 30 is shown as being stretched over the left and right lift arms 20, 20 by pushing up the cylinder 24.
When it is rotated in the clockwise direction (lift-up direction) in the drawing with the support shaft 21 as the fulcrum, it bends and rotates from the approximate V-shaped state shown in FIG. 3 to the inverted V-shaped state with the shaft 28 as the fulcrum. It is configured to be transferred and rotated in the direction of the arrow in the drawing, that is, in the counterclockwise direction, by the above-mentioned operating sprocket 29, which is rotated in the counterclockwise direction by the rotating piece 5e.

31 is an absorber with a built-in spring.

The tip 31a of the shaft protruding from one end is fixed in the middle of the chain 30, and the tip 31a of the shaft protruding from the other end is hook 3.
1b, and this hook 31b is connected to the lock piece 9.
The opening/closing lid 7 is locked to a locking pin 9a to keep the opening/closing lid 7 closed at all times, and these components constitute the locking mechanism described above.

The above locking mechanism is such that when the dust bucket 5 is lifted up and the endless chain 30 moves in the direction of the arrow, the hook 31b comes off the locking pin 9a and opens the opening/closing M7 as shown in FIG. Furthermore, when the rod 24a of the cylinder 24 is pulled and the dust bucket 5 descends toward the aircraft 1, the locking pin 9a is relatched to the hook 31b as the endless chain 30 moves back, and the opening/closing lid 7 is closed again. It is configured to be held in a fixed state.

Since the sweeper garbage dumping device according to the present invention has the configuration as described above, when the garbage DS collected in the dust bucket 5 is to be disposed of in the container 18, the cylinder 24 is actuated and the left and right lift arms 20. 20 may be pushed up and rotated clockwise in the drawing. Then, due to the eccentric mounting position and the weight of the collected garbage DS, the dust bucket 5 is gradually lifted up with the disposal port 5b side facing down, and the hook 31b of the locking mechanism is moved by the movement of the endless chain 30. Since it comes off from the locking pin 9a and the lock piece 9 becomes free, the opening/closing lid 7 is opened as shown in FIG. 2 under its own weight and the weight of the garbage DS, and the collected garbage DS is disposed of in the container 18. be able to.

Furthermore, after the waste DS is disposed of, the cylinder 24
When the lift arms 20, 20 are retracted and rotated to return, the dust bucket 5 is returned to the state shown in FIGS. According to the backward movement of , the hook 31b re-engages with the locking pin 9a of the lock piece 9, and locks the opening/closing lid 7 in the closed state again.

In the above embodiment, the rotating piece 5e that holds the dust bucket 5 is supported by fitting the mounting shaft 5C into the elongated hole 5d, and is connected to the rotating piece 5e using the shaft 28. The left and right lift arms 20.20 are rotatably cantilevered on the support shaft 21, so that the entire dust bucket 5 is vertically movable with respect to the vehicle body 1. Even if it hits a convex part, it moves upward to soften the impact, which prevents the dust bucket 5 from being damaged, and by placing the dust bucket 5 as close as possible to the ground surface, it is possible to increase the rate of garbage collection and descent. becomes possible.

〔effect〕

The present invention is as described above, and since the dust bucket is lifted up with the waste port facing downward, there is no fear that the garbage collected during rotation will scatter from the sweep port side.
In addition, there is no need to tilt and rotate the dust bucket during lift-up, and the opening/closing lid that closes the waste port is automatically opened by an endless chain that unlocks it in conjunction with lift-up. For example, 1
This cylinder makes it possible to lift up the dust bucket and open/close the lid. Therefore, compared to conventional devices of this type, the structure is greatly simplified and the cost is low. It can be manufactured economically and is very suitable for use in various types of sweepers, including the illustrated sweeper for both walking and riding.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a sweeper implementing the garbage dumping device according to the present invention, and FIG. FIG. 3 is a sectional view showing essential parts of the present invention, and FIG. 4 is a perspective view as well. 1 is the body of the sweeper, 4 is a rotary brush, 5 is a dust bucket, 5a is a sweep port, 5b is a waste port, 5e is a rotating piece, 7 is an opening/closing lid, 9 is a lock piece, 9a is a locking pin, 2
o is a lift arm, 21 is a support shaft, 22 is an operating shaft, 24
is a cylinder, 27 and 29 are sprockets, 30 is an endless chain, 31 is an absorber, 131b is a hook,
DS is garbage.

Claims (1)

[Claims] In a sweeper that uses a rotary brush to sweep dirt into a dust bucket while running, the dust bucket is provided with a waste disposal port with an opening/closing lid on the tip surface, and the dust bucket is rotatable by a cylinder. , and when rotated, the dust bucket is attached to a lift arm that lifts up with the garbage disposal port facing downward, and the sprockets attached to both ends of the lift arm move and rotate in conjunction with the rotation of the lift arm. In addition, in the middle of this endless chain, the opening/closing lid of the garbage disposal port is always locked in a closed state, and when the endless chain moves, this locking is released and the opening/closing lid is released. A garbage dumping device for a sweeper characterized by being equipped with a locking mechanism.