JPH11292487A - Dust collection box dumping device for sweeping vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rotatably move with ease a dust collection box for dumping dust of a sweeping vehicle used by fitting it to a forklift. SOLUTION: The upper front end of a dust collection box 12 including a dust collecting opening 12a on the rear surface side opposite to a main brush 5 is supported to the side member 1 with a pin 13 in a rotatably movable manner in the vertical direction and, normally, the dust collection box 12 is supported in a hung style in the dust collection position by hooking a hook 17 provided on the frame side on a U-shape hanging member 16 provided on the dust collection box 12. When the dust is to be dumped, an electromagnet 19 is actuated with the sweeping vehicle lifted up and the dust collecting opening 12a can be rotatably moved in the downward position to the dust collecting position by the tare weight of the dust collection box 12 by removing the hook 17 from the hanging member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting box damping device for a vacuum cleaner used for cleaning floors of factories and warehouses, and more particularly to an attachment type cleaner suitable for use with a forklift. The present invention relates to a dust collection box damping device.

[0002]

2. Description of the Related Art An example of a conventional attachment-type sweeper mounted on a forklift is disclosed in Japanese Patent Application Laid-Open No. 9-302636. The cleaning car described in the above publication is mounted by inserting a fork of a forklift into a fork mounting member provided on the upper surface of the body of the cleaning car and connecting the forklift, pushing the cleaning car forward with the forklift and using it. The main brush and the side brushes are driven by using the rotation of the rear wheel at the time of pushing, so that dust on the floor surface is swept into the dust collection box. In addition, the dust collection box for collecting dust is provided rotatably on the vehicle body, and the dust collection port is always held at a substantially horizontal dust collection position facing the main brush by a spring force. ing. When the dust in the dust collection box is to be discarded, on the driver's seat of the forklift, with the vacuum cleaner lifted, operate the cable and pull up the rear side of the dust collection box so that the dust collection port faces downward. The dust collection box was rotated so that the dust was discarded.

[0003]

However, the dust collecting box damping device described in the above-mentioned publication uses a spring force as means for holding the dust collecting box at the cleaning position. The pivoting operation requires a large operating force to overcome the spring force in addition to the weight of the dust collection box including dust.
There is a problem that operability is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a dust collection box for disposing of dust in a cleaning car mounted on a forklift. It is an object of the present invention to provide a dust box damping device for a cleaning car that can easily perform a rotating operation of a cleaning truck.

[0005]

To achieve the above object, the present invention is configured as follows. That is, according to the first aspect of the present invention, a dust collection box rotatably provided in a vertical direction in a cleaning truck mounted on a forklift and used is rotated to a position where a dust collection port faces downward when dust is discarded. And a box holding means for hanging the dust collection box at a dust collection position where a dust collection port is oriented substantially in a horizontal direction. When the holding function is released by the means, the dust collection box is rotated to the dust disposal position by gravity.

According to the first aspect of the present invention, when the hanging of the dust collection box by the box holding means is released while the cleaning truck is lifted by the forklift, the dust collection box is moved by its own weight. The dust is rotated to the dust disposal position and the dust in the dust box is discharged. For this reason, dust can be easily discarded.

According to a second aspect of the present invention, in the dust collecting box damping device for a cleaning car according to the first aspect, the box holding means is constituted by a hook member and a hook which can be disengaged from the hook member. is there. When such a configuration is employed, a box holding means having a simple structure can be provided.

According to a third aspect of the present invention, there is provided the dust collecting box damping device for a cleaning car according to the second aspect, further comprising an electric actuator that can be operated on a driver's seat of a forklift as a means for removing a hook from a hook member. is there. Also,
According to a fourth aspect of the present invention, in the dust collecting box damping device for a cleaning car according to the second aspect, a wire cable operable on a driver's seat of a forklift is provided as means for removing a hook from a hook member. According to the third or fourth aspect of the present invention, on the driver's seat, the dust collection box is rotated to the dust disposal position by operating the electric actuator or the wire cable to remove the hook from the hook member. Dust can be discharged.

According to a fifth aspect of the present invention, in the dust collection box damping device for a cleaning car according to any one of the first to third aspects, the lower surface of the dust collection box is grounded to a floor surface to thereby contact the dust collection box. With a caster that pushes up to the dust collecting position. According to such a configuration, after the dust collection box is rotated to the dust disposal position in a state where the cleaner is lifted to discharge the dust, and the cleaner is lowered onto the floor,
When the caster contacts the floor, the dust collection box can be pushed up and automatically returned to the cleaning position.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is directed to an attachment-type cleaning vehicle that is mounted on a forklift and is used for cleaning a floor of a factory or a warehouse.
Is a side view of the cleaning car. The cleaning car according to the present embodiment includes left and right side members 1 extending parallel to the front-rear direction as constituent members of a frame, and the left and right side members 1 have rectangular cross sections or open ends on the lower surface side. It is formed in a V-shaped cross section and constitutes a fork pocket portion for inserting a fork of a forklift. That is, an L-shaped fork 28 attached to a finger bar of a lift bracket 27 that can move up and down along the mast of the forklift.
Is inserted into the side member 1 as shown by the imaginary line in FIG.

The left and right side members 1 are connected to each other by a brush box 2 whose lower part is open at the center lower surface, are connected to each other by a tie beam 3 at the rear lower surface, and soar during the cleaning operation at the front upper surface. The filters are connected to each other by a filter box 4 provided for suctioning fine dust, thereby securing a required frame strength. In the brush box 2, the main brush 5 is accommodated in a state where the axial direction is the vehicle width direction and the lower side is exposed from the lower surface of the box, and both end shafts are rotatably supported by the box side wall. ing. The tie beam 3 has both left and right ends suspended downward, and a rear wheel 7 is rotatably mounted on an axle 6 provided at the left and right suspended parts. Further, a filter unit 4a (see FIG. 2) is housed in the filter box 4, and dust blown up by sweeping of the main brush 5 is blown by a dust suction blower through an upper surface opening of a dust collection box 12 described later. It is configured to aspirate and filter.

In addition, a side brush 8 is provided in front of the right side of the cleaner to collect dust toward the front in the traveling direction. The side brush 8 is rotatably attached to a tip end of a brush support arm 9 rotatably attached to the front end of the right side member 1 via a rotating shaft 10 extending in a vertical direction, and is always in contact with the floor surface. Although it is placed in a state, it is configured to be able to jump up together with the brush support arm 9 by hand when not in use.

In the present embodiment, although not shown, the rotational force of the rear wheel 7 that is driven and rotated when the cleaner is pushed down by a forklift in a state where the cleaner is lowered onto the floor is omitted. By transmitting the power to the main brush 5 and the side brush 8 and further to the dust-blowing blower through an appropriate power transmission means such as a chain-type or belt-type transmission mechanism or a gear-type speed increasing / reducing device, they are rotated. It is configured in. The entire upper surface of the frame including the power transmission means, the dust blower, and the like is covered by a body cover 11 provided on the upper side of the side member 1 so as to be detachable or openable.

Below the front part of the side member 1, that is, below the filter box 4, a dust collecting box 12 for collecting dust swept by the main brush 5 is provided.
A damping device for rotating the dust collection box 12 to a dust disposal position in which the dust collection port 12a faces downward for dust disposal will be described below with reference to FIGS. 2 and 3. FIG. The dust collecting box 12 is provided with a dust collecting port 12a having a rubber lip 12b for dust guide on a rear surface facing the main brush 5, and an upper front end thereof is attached by a pin 13 so as to be rotatable in a vertical direction. And
The dust collection box 12 is provided with a caster 14 as a front wheel on the lower surface on the dust collection port 12a side, and the dust collection port 12a is substantially opposed to the main brush 5 by the caster 14 when the cleaner is placed on the floor. The box holding means 15 is pushed up to the dust collecting position in a horizontal posture.
It is held in a hung state by.

As shown in FIG. 3, the box holding means 15 has an inverted U-shaped hooking member 16 fixed to the upper rear end of the dust collecting box 12, and can be hooked and unhooked from the hooking member 16. A hook portion 17 of the hook 17
The dust collecting box 12 is held at the dust collecting position by the hook a being hooked on the hooking member 16. The hook 17 is rotatably provided at the rear end of the filter box 4 via a pin 18. In a free state, the hook 17a is moved by its own weight.
When the dust balance is set so that the dust collecting box 12 is displaced to the hooking position just below the pin 18 and the tip of the hook portion 17a is formed on a slope, the dust collecting box 12 is turned to the dust collecting position. In addition, it is configured to be automatically locked after being pushed away by the locking member 16.

On the upper surface of the side member 1 or the brush box 2, an electromagnet 19 as an electric actuator for releasing the engagement of the hook 17 is provided on the bracket 2.
The projection 1 provided on the base (upper end) of the hook 17 when the operating rod 19a of the electromagnet 19 is energized.
The hook 17 is released by pressing the hook 7b. The operation for energizing the electromagnet 19 is performed, for example, by connecting the electromagnet 19 to a battery of a forklift using an extension cord and performing a switch on the driver's seat of the forklift, or by operating the rear wheel 7. A battery is charged with electric power generated using rotation, and an electromagnet 19 is connected to the battery,
It can be configured to be performed by a remote controller in the driver's seat.

As shown in FIG. 1, the cleaning truck constructed as described above inserts the fork 28 of the forklift into the side member 1 and stops the forklift from being pulled out via an appropriate hooking device (not shown). Used by mounting on a forklift. When the cleaning wheel is pushed by a forklift in a state where the rear wheel 7 and the caster 14 are in contact with the floor, the rotation of the rear wheel 7 is transmitted to the main brush 5 and the side brush 8 via the power transmission means. .
That is, the floor brush can be cleaned by using the rotational force of the rear wheel 7 to rotate the side brush 8, the main brush 5, and the dust suction blower.

Next, a case where the dust in the dust collection box 12 is discarded after the cleaning operation will be described. In this case, after transporting the cleaning vehicle to the dust disposal place, the cleaning vehicle is raised to a predetermined height. In this state, when the switch or the remote controller is operated to energize the electromagnet 19, the operating rod 19 a projects and presses the projection 17 a of the hook 17, and the hook portion 17 a is detached from the hook member 16. For this reason, the dust collection box 12 which has been released is rotated downward by its own weight, and its dust collection port 12a is rotated to the downward dust disposal position, so that the dust in the box is discarded.
As described above, according to the present embodiment, on the driver's seat of a forklift, the operation of operating the electromagnet 19 after lifting the vacuum cleaner makes it easy to dispose of dust from the dust collection box 12. It can be carried out.

When the dust collecting box 12 rotates, if the caster 14 comes into contact with the floor surface during the rotation, the rotation is restricted at that time. When the caster 14 does not come into contact with the floor surface when lifted high, the maximum rotation stationary angle is the dust collection box 1
The position of the center of gravity 2 is located just below the pin 13 which is the pivot of the dust collection box 12. Therefore, in the present embodiment, the mounting position is set so that the caster 14 is located behind the straight line connecting the pin 13 and the center of gravity when the dust collection box 12 is at the maximum rotation stationary angle. For this reason, when the cleaning truck is dropped on the floor after the dust disposal work, when the caster 14 comes into contact with the floor, the dust collection box 12 is pushed upward by the caster 14 and then turned to the dust collection position. Is restored.

When the dust collecting box 12 is returned to the dust collecting position, the hooking member 16 pushes up the hook portion 17a of the hook 17 and moves upward, and simultaneously with the passage, the hook portion 17a is moved upward.
a is returned by its own weight and is hooked on the hooking member 16. Thus, the dust collection box 12 is securely held at the dust collection position. For example, the dust collection box 12 is moved to another cleaning place or a storage place or is loaded on a truck for transportation. The unexpected rotation of the box 12 is avoided.

Next, another embodiment of the present invention will be described with reference to FIG. This embodiment is a modification of the hook releasing means of the hook 17. That is, the electric actuator system using the electromagnet 19 in the above-described embodiment is realized by a mechanical system using a hook release link 21 and a wire cable 22 with an operation knob for operating the link 21 in a driver's seat of a forklift. The other configuration is the same as that of the above-described embodiment. The link 21 has a pin 24 attached to a bracket 23 fixed to the upper surface of the side member 1 or the brush box 2.
And one end of the wire cable 22 is configured to be detachable from, for example, the link 21, and is compatible with attachment and detachment of the cleaning car to and from the forklift.

Therefore, in another embodiment, when the dust in the dust collection box 12 is to be discarded, the wire cable 22 is pulled while the cleaner is lifted, and the protrusion 17 b of the hook 17 is By releasing the latch on the latch member 16 by pushing, the dust collection box 12 can be turned to the dust disposal position, as in the above-described embodiment. In this case, it is desirable that the link 21 be returned to a position before the protrusion 17b of the hook 17 is pressed by a spring.

In the illustrated embodiment, box holding means 15 for holding the dust collection box 12 at the dust collection position.
Was constituted by a hook member, 16 and a hook 17,
The shape is not limited to the shape shown in the drawing, but it is essential that the dust collection box 12 be held in a hanging manner by a hanging-off method. Further, in the embodiment, the hook 17 is provided on the frame side and the hooking member 16 is provided on the dust collection box 12, but this may be reversed. Further, the hook 17 may be configured to be urged in the hooking direction by a spring. Furthermore, the case where the operation of releasing the hook 17 is performed on the driver's seat of the forklift has been described, but the operation may be changed to be performed on the cleaning vehicle side. Furthermore, the side brush 8 and the main brush 5
Is applied to a cleaning car of a type using the rotation of the rear wheel 7, but a power unit mounted type that drives wheels by an electric motor or an engine driven by a battery and drives a brush. It may be applied to a cleaning car.
In addition, the type of mounting of the cleaner on the forklift is such that the finger bar of the lift bracket 27
After removing the finger bar, the finger bar may be changed to a form in which the finger bar is attached via a hook.

[0024]

As described in detail above, according to the present invention,
In a vacuum cleaner used by attaching to a forklift,
The rotation operation of the dust collection box for discarding dust can be easily performed, and operability is improved.

[Brief description of the drawings]

FIG. 1 is a side view of a cleaning car mounted on a fork of a forklift.

FIG. 2 is a side view showing a dust collecting box damping device of a cleaning car.

FIG. 3 is an enlarged view of a portion A in FIG. 2;

FIG. 4 is an explanatory view showing a modified example of the latch release means.

[Description of Signs] 1 ... side member 5 ... main brush 8 ... side brush 12 ... dust collection box 12a ... dust collection port 14 ... caster 15 ... box holding means 16 ... hook member 17 ... hook 19 ... electromagnet

Claims (5)

[Claims] 1. A cleaning car for rotating a dust collection box provided on a forklift to be used by being mounted on a forklift so as to be rotatable in a vertical direction to a position where a dust collection port faces downward when dust is discarded. A dust collecting box damping device, comprising: a box holding means for holding the dust collection box in a dust collecting position in which a dust collection port is directed substantially horizontally, in a suspended manner, and a holding function of the box holding means. A dust collection box damping device for a cleaning car, wherein the dust collection box is rotated to a dust disposal position by gravity when released. 2. The box holding means is constituted by a hook member and a hook which can be disengaged from the hook member.
A dust collecting box damping device for a cleaning car according to the above. 3. The dust collecting box damping device for a cleaning car according to claim 2, further comprising an electric actuator operable on a driver's seat of a forklift as means for removing the hook from the hook member. 4. The dust collecting box damping device for a cleaning car according to claim 2, further comprising a wire cable operable on a driver's seat of a forklift as means for removing the hook from the hook member. 5. A dust collecting apparatus according to claim 1, further comprising a caster provided on a lower surface of the dust collecting box to push the dust collecting box to a dust collecting position by being grounded to a floor surface. Box damping device.