JP2560450B2 - Sweeper dust box support device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dust box supporting device of a sweeper used for cleaning a warehouse, a factory, a road surface, or the like, and more particularly, to tipping (dumping) the dust box for dumping dust. ) A support device for operably supporting.

(Prior Art) As a supporting device of this type, that is, a supporting device for supporting a dust box accommodated in a box accommodating portion at the front of the machine body so that the dust box can be manually overturned for dumping dust, for example There is a publication of 62-129419. This is configured so that the rollers provided on the left and right outer side surfaces of the dust box are rollably mounted on rails extending in the front-rear direction provided on the left and right inner side surfaces of the box storage section so that the dust box can be pulled out forward. , Always push it into the box storage part and hold it in the specified horizontal posture with the appropriate hanging metal fitting.When dumping dust, manually remove the hanging metal fitting and pull out the dust box to the front, and then turn it over so that the sweep port faces downward. It is something that is done.

(Problems to be Solved by the Invention) The above-described conventional tipping method is a method of pulling out the dust box in front of the machine body and then performing a tipping operation, so that although the advantage that dust can be discharged to the front of the machine body is obtained, Since the interval of the sweep opening to the ground when the tipping operation of the front end is narrow is narrow, the dust release property is poor, and therefore it is often impossible to release the front end dust with a single tipping operation. There's a problem.

Therefore, in view of the above problems, it is an object of the present invention to provide a dust box supporting device for a sweeper, which can be operated by inclining the dust box so that it can be greatly lifted upward, and which is easy to operate.

(Means for Solving the Problems) In order to solve the above problems, the present invention is a device for supporting a dust box for collecting dust disposed on the front side of a machine body so as to be capable of tipping over, and rotating vertically on the machine side. In a normal position, which is movably attached and is prevented from moving by a stopper, the dust box is supported in a substantially horizontal position by supporting a specific support point formed on the outer surface of the dust box at the front side of the center of gravity. And a flip-up member that is rotatably mounted with a shaft common to the support member as a fulcrum and is engaged with a part of the dust box during the rotary operation. The initial rotation of the flip-up member independently precedes the support member, and when the flip-up member rotates to a predetermined angle position, the support member engages with the flip-up member and is driven to rotate. It is connected with sea urchin.

(Operation) The dust box is horizontally supported by the supporting member during normal cleaning, and its sweeping port faces the rear side of the dust sweeping main brush. When the hoisting member is rotated during dust dumping, the dust box is pushed forward by the initial turning of the hoisting member and tilted forward around the support point of the support member, and its sweeping port temporarily turns upward. When the hoisting member engages with the supporting member at the time when the hoisting member rotates to a certain position, thereafter the hoisting member and the supporting member rotate together, and this rotation causes the dust box to have its sweeping port facing downward. It will be lifted up so much that it will fall and the dust will be discharged.

(Example) Hereinafter, the Example of this invention is concretely described based on drawing. In FIG. 2 showing the outline of the sweeper, reference numeral 1 in the figure denotes a machine body having drive wheels 2 and caster-type driven wheels 3 driven by an engine (not shown) as power sources.
A brush chamber 5 for accommodating a main brush 4 for sweeping dust is formed in a substantially central lower part of the machine, and a suction blower and dust sucked by the blower (not shown) are provided in a rear portion of the machine body 1. A cassette type filter for filtering the air and discharging the clean air out of the machine is housed. In addition, 6 is a handle, and 7 is an auxiliary brush that brings dust on the road surface to the center during cleaning work.

On the other hand, a box storage portion 8 is formed in the lower front portion of the machine body 1, and a dust box 9 having a dust sweeping port 9a facing the main brush 4 at the rear end thereof is stored and arranged in the box storage portion 8. ing. As shown in FIG. 5, a pin 10 is provided on the lower side and a stopper 11 is provided on the upper side of the dust box 9 slightly frontward of the left and right outer side surfaces, that is, in front of the center of gravity. This stopper
11 is a bracket 11a fixed to the dust box 9,
It is composed of a screw shaft 11b mounted on the shaft so that its position can be adjusted.

Next, a supporting device that supports the dust box 9 on the machine body 1 will be described. As shown in FIG. 1, a support arm 12 as a box support member is disposed on each of the left and right sides of the box storage portion 8, and the support arm 12 has its upper end portion rotated around a support shaft 15 extending in the left-right direction. It is movably mounted, and its rotation is normally restricted by a stopper 16 provided on the machine body 1 so as to hang downward substantially vertically. The supporting shaft 14 is, as shown in FIG.
For example, it is rotatably supported by the frame of the machine body 1 directly or via a bracket.

The left and right support arms 12 support the pins 10 of the dust box 9 by the hooks 13 formed on the lower ends thereof, and receive the stoppers 11 via the push rods 14 provided on the upper portions. That is, the dust box 9 is supported in a substantially horizontal position by supporting the hook 13 and the push rod 14 of the support arm 12 at the upper and lower two positions on the outer side in front of the center of gravity. As shown in FIG. 3, the push rod 14 is penetrated through a through hole 12a formed in the support arm 12 in the front-rear direction, and flanges 14a, 14b are provided at both front and rear ends thereof. The stopper 11 is received by the front flange 14a.

Further, on the left and right sides of the support shaft 15, a hoisting arm 17 which is a box hoisting member is attached. As shown in FIGS. 3 and 4, the flip-up arm 17 has a substantially central portion fixed to the support shaft 15, and the support arm
12 are arranged side by side in close proximity to each other, and the lower end thereof goes around the back surface of the support arm 12 and the push rod
The rear flange 14b of 14 can contact or can contact.

On the other hand, on the rear side of the machine body 1, as shown in FIG. 1, a pedal link 18 is arranged as a tipping operation means for the dust box 9. The pedal link 18 is attached to an appropriate portion of the machine body 1 via a pin 19 so that it can be stepped on, and is connected to the hoisting arm 17 via a linking mechanism 20 including a link mechanism. Specifically, the pedal link
The 18 and the hoisting arm 17 are connected via two relay links 21a and 21b extending in the front-rear direction, and the connection points of these two relay links 21a and 21b are pivotally attached to the body 1. The direction of movement is restricted by another link 22. The link mechanism 20 may be provided on either the left or right side, but may be provided on both sides if necessary.

The present embodiment is configured as described above, and the dust releasing action of the dust box 9 will be described below with reference to FIG. 1 and FIGS. 6 to 9. FIG. 1 shows a normal cleaning operation. The dust box 9 is supported by the support arm 12 at two upper and lower sides of the side surface and is supported in a substantially horizontal posture. When the sweeper is put in the garbage dumping place, when the pedal link 18 is stepped on, the flip-up arm 17 is rotated via the link mechanism 20. Jumping arm at the initial stage of rotation
Since the lower end of 17 pushes the push rod 14, the push rod 14 slides forward along the through hole 12a of the support arm 12 and pushes the stopper 11, so that the dust box 9 is supported by the support arm 12. Lean forward with pin 10 being the center. That is, the dust box 9 is lifted up on the sweep port 9a side as shown in FIG.

When the flip-up arm 17 is rotated to a predetermined angle, the rear flange 14b of the push rod 14 comes into contact with the back surface of the support arm 12, and thereafter the flip-up arm 17 and the support arm 12 are pushed.
And are integrally rotated, and the dust box 9 is shown in FIGS.
As shown in the figure, the sweeping port 9a is pivoted upward with the support shaft 15 as the center so as to face downward. Thus,
The dust in the dust box 9 is discharged to the front of the sweeper.

After the dust is discharged, if the pedal force on the pedal link 18 is released, the dust box 9 returns to the original position in the horizontal posture, passing through the trajectory at the time of discharging in the opposite direction. At this time, since the dust box 9 returns to the original position through a relatively high place, the lip 9b of the sweep port 9a does not get caught in the discarded dust.

In this embodiment, the dust box 9 is supported at the upper and lower two points by the left and right support arms 12 at the time of normal cleaning, but the present invention is not limited to this.
It is also possible to make the terminal jump member 17 take charge of the upper part of the points. That is, as shown in FIG. 10, the hoisting member 17 is always provided with a receiving piece 17a for receiving the stopper 11 of the dust box 9, while the stopper 24 provided on the machine body 1 regulates the turning position of the hoisting member 17. Then
Further, the flip-up member 17 is a connecting member that comes into contact with the back surface of the support member 12 after being rotated by a predetermined angle and is driven to rotate the same.
It is achieved by providing 23.

Further, although not shown, the tipping operation means of the dust box 9 may be a lever instead of the pedal link 18,
It is also possible to use a power type using an appropriate actuator instead of the manual type, and the link mechanism 20 can be changed to a cable.

(Effects of the Invention) As described in detail above, according to the present invention, after rotating the dust box so that its sweeping port is once upward, the dust box is largely moved upward with a position above the dust box as a rotation fulcrum. Since it can be jumped up and fallen, it can effectively discharge dust, which is very useful for improving work efficiency, and its operation itself is simple by rotating the support member of the dust box. Since it can be realized by operation, the tipping operation becomes simple.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a side view showing a dust box supporting device, FIG. 2 is a schematic external view of a sweeper, and FIG. 3 is an enlarged side view showing a supporting arm, a jumping arm, and the like. FIG. 4 is a front view of the same, FIG. 5 is a perspective view of a dust box, FIGS. 6 to 9 are operation explanatory diagrams when dust is discharged, and FIG. 10 is a perspective view showing a modified example of the present invention. 1 ... Aircraft, 4 ... Main brush 9 ... Dust box, 9a ... Sweep port 10 ... Pin, 11 ... Stopper 12 ... Support arm, 14 ... Push rod 17 ... Jump arm, 18 ... … Pedal link 20 …… Linkage mechanism

Claims (1)

(57) [Claims] 1. A device for supporting a dust box for collecting dust disposed on the front side of a machine body so that the dust box can be turned over, and is mounted on the machine body so as to be vertically rotatable and prevented from rotating by a stopper. In the normal posture, a support member that supports the dust box in a substantially horizontal state by supporting a specific support point formed on the outside surface of the box at a position on the front side of the center of gravity of the dust box and a shaft common to this support member are rotated. A flip-up member that is rotatably mounted as a dynamic fulcrum and that engages with a part of the dust box at the time of the rotary operation is provided. A dust box support device for a sweeper, which independently precedes and is connected so that the support member engages with the flip-up member and is driven to rotate when the flip-up member rotates to a predetermined angle position.