JPH0644Y2 - Filter mounting structure for floor cleaning vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a filter mounting structure for a floor cleaning vehicle.

[Prior Art] In a floor cleaning vehicle, as shown in FIG.
The dust on the 0 road is swept up by the rotation of the main brush 31, and is sent into the dust box 32 in the vehicle 30. Then, the minute floating dust generated when the dust is swept is passed through the blower 33 to the filter box 3
It is sent to the filter 35 in the No. 4 and filtered by this, and clear air is discharged to the outside.

As shown in FIG. 4, the filter 35 described above has a shaker shaft 37 attached to the lower end of a corrugated portion 36 that is folded in multiple layers to form a filter bag 38, and the filter bag 38 is elastic. It is configured by being bonded to the lower surface of a substrate 39 made of a resin material or the like. The filter bag 38 of the filter 35 is housed in the filter box 34, and the substrate 39 folded according to the shape of the upper end step portion 40 of the filter box 34 closes the filter box 34 by the box cover 41 by the stopper 42. The filter 35 is attached to the filter box 34 by being locked. When the filter bag 38 is gradually clogged with dust due to the filtration of the suspended dust and the filtration rate is lowered, the filter 35 is removed from the filter box 34 and replaced, so that highly efficient filtration is always performed. ing.

[Problems to be Solved by the Invention] However, when replacing the filter 35 described above, the box cover 41 is removed from the filter box 34, the substrate 39 is further separated from the upper step 40, and then the entire filter 35 is lifted up. The bag 38 needs to be removed from the filter box 34. At this time, the dust applied to the filter bag 38 is blown up by the force applied to the filter bag 38, and the comfort of work is impaired.

Furthermore, when installing a new filter 35 at the time of this replacement, it is necessary to set each corrugated portion 36 in a predetermined posture in the filter box 34 in order to prevent deterioration of the filtration efficiency of the filter bag 38. The replacement work was complicated.

The present invention has been made to solve the above-mentioned problems, and its purpose is to ensure the comfort of work when replacing a filter and to provide a filter mounting structure in a floor cleaning vehicle that can be easily carried out. To provide.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention sweeps dust on the floor surface into the dust box by the rotation of the main brush and collects the floating dust generated at the time of collecting the dust with a filter in the storage box. In a floor cleaning vehicle for filtering, an opening communicating with the outside of the vehicle is formed in a part of the storage box, and a door member for opening and closing the opening is provided, and further, a filter can be attached and detached inside the door member. When the door member is closed, the filter is held at a filterable position in the storage box when the door member is closed, and when the door member is opened, at least a part of the filter is displaced out of the storage box together with the door member. It was done.

[Action]

According to the present invention, by adopting the above-mentioned means, when the door member is closed, the filter is held at the filterable position in the storage box, and the floor surface cleaning operation is performed in this state.

On the other hand, when the door member is opened, the filter is automatically pulled out of the storage box together with the door member, and by removing the filter from the door member in this state,
The filter is replaced.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to FIGS.

In FIG. 1, a known floor cleaning vehicle sweeps dust at the corners of the vehicle running path to the central portion by a side brush 1 provided at the front portion thereof, and a main brush 2 provided at the central portion of the bottom portion at the central portion of the floor surface. Part of dust is swept up and collected in the dust box 3 in front of the vehicle.

A filter 5 is arranged in a filter box 4 provided at the rear portion of the vehicle, and further communicates with the vicinity of the main brush 2 via a suction port 6 formed by opening the lower surface of the filter box 4. Further, the vehicle is provided with a storage chamber 7 in communication with the filter box 4, and a blower 8 is arranged inside the storage chamber 7. And blower 8
Due to the intake action of the air, air containing fine floating dust generated by the dust sweeping by the main brush 2 flows into the filter box 4 through the suction port 6 and is filtered by the filter 5. Has become.

The filter 5 will be described with reference to FIG. The filter box 4 is disposed on the dust pan 4a, and the hollow holding portion 1 is provided in the filter box 4 in an oblique shape.
The filter 5 that abuts against 2 via a pair of rubber seals 13 is formed by arranging a wavy filter portion 10 in a rectangular case 9 formed of cloth. The air containing the floating dust flowing from the suction port 6 of the filter box 4 flows in the direction of the arrow, and is sucked into the case 9 through a suction port (not shown) formed in the lower rear portion of the case 9, and the filtering unit 1
After being filtered at 0 to remove the floating dust, it flows out from the air supply port 11 of the holding unit 12 through an outlet (not shown). After that, the air is stored in the storage chamber 7 by the suction action of the blower.
It reaches the inside and is discharged to the outside of the vehicle through an exhaust port (not shown).

A mounting bracket 14 is fixed to the bottom surface of the filter box 4 described above, and the lower ends of a pair of support arms 15 (only one is shown) arranged on both sides inside the filter box 4 are rotatably mounted on the mounting bracket 14 by an axis C. Has been. A mounting plate 16 and an end face L-shaped supporting plate 17 are installed between the rear slanted portions and between the lower portions of the supporting arms 15, and the lower end of the filter bracket 26 located on the mounting plate 16 is the supporting plate. It is supported at 17 so as not to fall.

Further, an opening 18 is formed on the rear surface of the filter box 4, and a pair of interposer plates 1 are provided at both upper and lower ends of the opening 18.
9a and 19b are supported. Then, the interposing plates 19
The opening 18 is always closed as shown by the solid line by the opening / closing plate 20 as a door member contacting the a and 19b via the rubber seal G. The locks 21a and 21b provided on the upper and lower edges of the opening 18 of the filter box 4 are fixed to the opening / closing plate 20.
The open / close plate 20 in the closed state is held in the locked state by being hooked by 2a and 22b.

The upper portions of both support arms 15 are bent rearward to form projecting portions 23, and these projecting portions 23 enter between the interposing plates 19a and 19b. Further, tongue-shaped connecting brackets 24a and 24b protruding rearward are formed on upper and lower portions of both end surfaces of the opening / closing plate 20, respectively. A pin 25 having a diameter substantially the same as that of the pin hole is inserted through the upper connecting bracket 24a, and the opening / closing plate 20 is rotatably connected to the upper end of the filter bracket 26 by the pin 25.

Further, a horizontally elongated pin hole 27 is formed in the lower connection bracket 24b, and the pin 2 inserted in the pin hole 27 is formed.
The opening / closing plate 20 is connected to the lower portion of the rear end of the projecting portion 23 of the support arm 15 by 8. Therefore, the opening / closing plate 20 swings about the upper connecting bracket 24a within a range in which the pin 28 abuts on the inner peripheral edge of the long diameter portion of the pin hole 27 and is restricted.

Now, the above-mentioned filter 5 is arranged in the filter box 4 at the solid line position, the contaminated air including the suspended dust is filtered by the suction action of the blower 8, and the fine dust is accumulated in the filter portion 10. Then, if the amount of dust accumulated in the filtration unit 10 increases, the filtration efficiency decreases. At this time,
In order to take an emergency measure, when the open / close plate 20 in the closed state is hit from the outside, it swings, and at the time of this swing, the impact due to the contact between the pin 28 and the inner peripheral edge of the pin hole 27 is transmitted to the support arm 15. To be done. Due to this impact, the filter 5 on the mounting plate 16 is shaken, the dust accumulated in the filter portion 10 is wiped off to some extent, and falls into the dust pan 4a. Therefore, temporary measures are taken to prevent the filtration efficiency of the filter 5 from being extremely lowered.

Further, in order to replace the filter 5 and obtain sufficient filtration efficiency, both lock portions 21a and 21b of the filter box 4 are required.
Are separated from the corresponding fasteners 22a and 22b of the opening / closing plate 20. Then, as shown by the chain double-dashed line, when the opening / closing plate 20 is gradually retracted, the support arm 15 connected to the opening / closing plate 20 is rotated clockwise about the axis C to follow the movement of the opening / closing plate 20. It projects from the space between the mounting plates 19a and 19b to the outside through the opening 18. At the same time, the filter bracket 26 connected to the opening / closing plate 20 is rotated in the clockwise direction so as to protrude rearward from between the two interposing plates 19a and 19b through the opening 18. Therefore, it is possible to replace the filter 5 by protruding it from the opening 18 to the outside, picking it up from the mounting plate 16 and then disposing another filter 5 on the mounting plate 16.

When the filter 5 is replaced as described above, a large impact is not applied to the filter 5, and the dust accumulated in the filter portion 10 of the filter 5 does not fly into the atmosphere.

Further, by opening the opening / closing plate 20, the filter 5 can be taken out without using an instrument such as a sticky member, and by arranging the new filter 5 on the mounting plate 16, the filter 5 can be easily replaced. obtain.

Further, by disposing the blower 8 on the downstream side of the filter 5, it is possible to prevent air containing suspended dust from passing through the blower 8 and impairing the function of the blower 8 due to the adhesion and accumulation of the dust.

[Effect] As described in detail above, according to the filter mounting structure of the present invention, the comfort of the work is guaranteed when the filter is replaced, and the work is easily performed.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a floor cleaning vehicle, FIG. 2 is a sectional view showing a filter box and a filter mounting structure inside the filter box, and FIG. 3 shows a floor cleaning vehicle equipped with a conventional filter. FIG. 4 is a schematic side view, and FIG. 4 is an exploded perspective view showing a conventional filter mounting structure. Main brush 2, dust box 3, filter box 4 as a storage box, filter 5, opening 18,
Opening / closing plate 20 as a door member.

Claims (1)

[Scope of utility model registration request] 1. A floor cleaning vehicle in which dust on a floor surface is swept and collected in a dust box by rotation of a main brush, and floating dust generated at the time of collecting the dust is filtered by a filter in a storage box. A door member that forms an opening communicating with the outside of the vehicle in a part of the storage box and opens and closes the opening, and further has a filter detachably connected to the inside of the door member, A floor cleaning vehicle characterized in that, when closed, the filter is held in a filterable position in the storage box, and when the door member is opened, at least a part of the filter is displaced to the outside of the storage box together with the door member. Filter mounting structure in.