JP3202467B2 - Floor polisher with dust collection function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of a floor polisher for polishing a floor by rotating a pad motor at a high speed while running the machine. Is a floor surface equipped with a dust collection function that can collect various types of dust such as pad debris and dust on the floor surface generated when polishing and polishing the pad at high speed without scattering to the surroundings. It is related to a polishing machine.

[0002]

2. Description of the Related Art A conventional floor polisher in which a pad is rotated at a high speed by a motor to polish a floor surface while an operator operates an operation handle and runs the machine body is a pad polisher around a pad. By covering, various kinds of dust generated at the time of rotation of the pad are configured not to be scattered around.

However, if the surroundings of the pad are merely covered with the pad cover, dust accumulates inside the cover as the operation proceeds, and the seal skirt attached to the lower end of the pad cover may be rolled up by an uneven surface or a step surface. When a gap is formed between the floor and the floor due to being caught, there is a problem that dust accumulated inside the gap vigorously scatters with the swirling airflow to contaminate the surroundings.

Therefore, as disclosed in Japanese Utility Model Laid-Open No. 5-39457, for example, by connecting a filter to a pad cover via a duct, various dusts generated by glazing can be swirled by the rotation of the pad. An air bleed system configured to collect dust on the filter through a duct through a duct, or a blower dedicated to suction is attached to the polisher, and the suction action of this blower is applied to the inside of the pad cover through the filter, so that the pad There has been considered a polisher provided with various types of dust collectors, such as a vacuum system configured to collect dust generated in a cover into a filter.

[0005]

However, the above-described air bleed system has a simple structure and is economical in that it can be implemented at low cost, but on the other hand, it uses only the swirling airflow generated by the rotation of the pad to collect dust. Therefore, the dust collection efficiency is low and unstable, and the entire swirling airflow cannot be intensively sent to the filter side. High rate of blow-off. Dust blows out when the filter is damaged. There were various problems.

In the case of the vacuum system, the dust in the pad cover is forcibly sucked by using a dedicated blower, so that the vacuum system has an advantage that an excellent collecting effect can be exhibited, but the structure is complicated and the cost is high. In other words, the power required for the blower is required in addition to the power for rotating the pad, so in the case of a model equipped with a battery, the power load is increased, the battery becomes larger, and a compact design cannot be made. There was a problem, and in addition, there was a problem that noise during driving increased.

Accordingly, the technical problem of the present invention is to provide an excellent trapping effect by intensively sending all of the swirling airflow to the filter side without using a dust suction blower, and at the same time, to prevent dust leakage. An object of the present invention is to provide a floor polisher with a dust collecting function, which can reduce the ratio and does not cause dust to be blown out even if the filter is damaged.

[0008]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

The pad mounted in the pad cover is rotated at a high speed by a motor while the body is running to polish the floor surface, and the dust generated by the polish is put on a swirling airflow due to the rotation of the pad to the filter. In a floor polisher configured to send and collect dust,

(1) A fan that rotates together with the pad and generates a swirling airflow in the pad cover is mounted on the upper surface of the pad that is rotated at a high speed by the motor.
The air intake side of the filter is connected to the outside of the pad cover, and the exhaust side of the filter is connected to the center of the upper surface of the pad cover.

(2) The periphery of the fan is surrounded by a guide cover frame mounted in the pad cover, and an outlet for swirling airflow is provided on the peripheral surface of the guide cover frame toward the inner wall of the pad cover.

[0012]

The means described in (1) and (2) operate as follows.

According to the means described in the above (1), the fan rotating at high speed integrally with the pad generates a stronger swirling airflow inside the pad cover, and puts the dust on the strong swirling airflow outside the pad cover. Since it can be sent to the filter without leakage from the inlet opening closer to the filter and collected, there is no need to provide a dedicated blower for dust suction, and the exhaust air after dust collection is returned to the center of the pad cover again. The so-called circulation system is adopted, so that dust can be collected stably and there is no danger of dust blowing out even if the filter is damaged, and the floor surface is polished with low noise. In a state, it is possible to proceed hygienically without polluting the surroundings.

According to the means described in the above (2), the air flow generated by the fan rotated at high speed integrally with the pad is:
It turns along the surrounding guide cover frame, then jets from the injection port as a jet jet and is vigorously jetted toward the inner wall of the pad cover, and further, since this jet jet turns along the inner wall of the pad cover, the pad A strong swirling airflow is generated inside the cover, and the dust generated by the glazing can be completely sent to the filter side to collect the dust.

[0015] As described above, the above-mentioned technical problems can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the above-mentioned floor polisher having a dust collecting function according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing a cross section of a main part of a floor polisher having a dust collecting function according to the present invention. In FIG. And 3 are running wheels,
Reference numerals 4 and 5 denote batteries mounted as power sources in the body 1 and M
Denotes a motor serving as a driving source, Ma denotes a rotating shaft of the motor M, 8 denotes a pad rotated at a high speed by the motor, and 7 denotes a pad mounting base for mounting the pad 8 to the rotating shaft Ma of the motor M.

FIGS. 2, 3 and 4 are a plan view and a front sectional view illustrating the structure of the pad 8 and the mounting portion thereof.
FIG. 1 is an exploded perspective view. In these drawings and FIG. 1 described above, what is generally indicated by reference numeral 10 is a rotation mechanism of the pad 8 and the rotation axis Ma described above. Is vertically extended downward through a shaft hole 12a of a base 12 attached to the upper surface of a fixed frame 11 attached to the machine body 1, and a central portion 7c of a pad attachment base 7 has a screw 6 at its lower end. It is fixed using.

7a are a plurality of fans (rotating blades) radially formed on the upper surface of the pad mounting table 7, 7b is a screw hole for the screw 6 formed at the center thereof, and 9 is a screw hole of the pad mounting table 7. A pad mounting screw for fixing the pad 8 to the bottom surface of the pad mounting base 7 by screwing and tightening a nut 7d provided at the center of the bottom surface, and 9a denotes a washer with a nail for fixing the pad.

Reference numeral 14 denotes a pad cover attached to the bottom surface of the fixed frame 11 via an elastic bellows 15 having an adjusting screw 11a. Reference numeral 16 denotes a mounting edge 16a formed at an upper end edge of the pad cover 14. A soft rubber skirt portion detachably attached to the lower portion of the pad cover 14 by being fitted into the fitting portion 14a formed on the edge, and a rotating chamber 10H constituted by the pad cover 14 and the skirt portion 16. Among them, the above-mentioned pad 8 is configured to be rotated at a high speed by the motor M.

Reference numeral 13 denotes a guide cover frame attached to the bottom of the fixed frame 11 so as to surround the periphery of the above-mentioned fans 7a.
An injection port 13a is opened to compress the swirling airflow generated by the rotation of the fans 7a into a jet stream and blow it at a fixed angle to the inner wall surface of the pad cover 14. Accordingly, each fan 7a. The airflow generated by the rotation of is rotated vigorously along the inner wall surface of the pad cover 14 while entraining dust.

In FIG. 1 and FIG. 2, reference numeral 20 denotes a paper pack filter which is exchangeably mounted in a dedicated box provided in the machine body 1. The entrance 20a side of the filter 20 is provided with a duct or a hose. The pad cover 14 is connected to an air supply port 14T which is opened on the outer upper surface of the pad cover 14, and the exhaust port 20b is also protruded from the upper surface near the center of the base 12 via a duct or a hose. Inlet 1
2T, the rotating chamber 10H and the filter 20
Are connected by a so-called circulation route.

Numeral 11b denotes a vent opening at the center of the fixed frame 11, and numeral 17 designates each fan 7a for sending air circulated from the filter 20 through the vent hole 11b to the fan 7a again. Is an airflow guide having a substantially umbrella shape as a whole, and the upper end 17a of the guide 17 is loosely fitted to the outside of the vent 11b.

Further, in the figure, reference numeral 18 denotes a mounting frame for the motor M described above.
The three columns 19 attached to the fixed frame 11 are supported by springs 19S so as to be able to move up and down, respectively, via springs 19S. The motor M is lowered by the generated negative pressure, and the pad 8 is rotated at a high speed in a state in which the pad 8 is in close contact with the floor surface.

Since the floor polisher having a dust collecting function according to the present invention has the above-described configuration, the pad 8 is connected to the motor M
When the airframe 1 is run while rotating at high speed, the floor surface can be polished by the pad 8, and the dust generated in the rotating chamber 10H by the high-speed rotation of the pad 8, that is, glazing, is generated by the fans 7a. Riding on the swirling airflow generated by the rotation of the rotation chamber and compressed by the guide cover frame 13 and vigorously injected into the rotation chamber 10H, through a duct or a hose from an air supply port 14T provided outside the rotation chamber 10H. After being fed into the paper pack filter 20 and filtered there, the exhaust gas is circulated again through the duct or the hose toward the center of the rotating chamber 10H, and by repeating this circulating operation continuously, the polishing is performed. The various dusts generated are sequentially passed through a paper pack filter 20.
Can be collected.

In the above-described embodiment, an exchangeable paper pack filter 20 is used as a filter. Alternatively, another filter such as a bag-type filter or a molded filter may be used.

[0027]

As described above, according to the floor polisher having a dust collecting function according to the present invention, various dusts generated in the pad cover by the polishing operation by the high-speed rotation of the pad are removed by the fan. It can be collected by a filter on a strong swirling airflow generated by rotation, and compared to the model that collected dust only by the swirling airflow by the conventional high-speed rotation of the pad, dust Can be more reliably and stably collected.

Further, according to the present invention, since it is not necessary to separately provide a power for rotating the fan or a blower for collecting dust, the load on the power is reduced and the size of the battery can be reduced. The compact design of the whole machine can be made possible.Furthermore, due to the adoption of the circulation system, there is no need to worry about blowing out dust even if the filter is damaged.
In addition, it is possible to exhibit an advantage that the operation can be performed extremely hygienically and with a low noise level by minimizing dust leakage.

[Brief description of the drawings]

FIG. 1 is a side view showing a cross-section of a main part of a floor polishing machine having a dust collecting function according to the present invention.

FIG. 2 is a plan view showing a configuration of a fan and a pad portion, which are main parts of the present invention.

FIG. 3 is a front sectional view showing a configuration of a fan and a pad portion.

FIG. 4 is an exploded perspective view showing a fan and a pad portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body of polisher M Motor Ma Rotating shaft 7a Fan 8 Pad 10H Rotating chamber 12T Intake port 13 Guide cover frame 13a Injection port 14 Pad cover 14T Air supply port 20 Filter

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47L 11/14 A47L 5/06 A47L 9/04 A47L 11/164

Claims (2)

(57) [Claims] 1. A pad mounted in a pad cover is rotated at a high speed by a motor while running the body to polish a floor surface, and dust generated by the polish is put on a swirling airflow caused by rotation of the pad. In a floor polisher configured to collect dust by sending it to a filter, a fan that rotates together with the pad and generates a swirling airflow in the pad cover is provided on an upper surface of the pad that is rotated at a high speed by the motor. A floor glossy surface having a dust collecting function, wherein the filter is attached, and the air intake side of the filter is connected to the outside of the pad cover, and the exhaust side of the filter is connected to the center of the upper surface of the pad cover. Departure. 2. The fan is characterized in that the periphery of the fan is surrounded by a guide cover frame mounted in the pad cover, and a jet of a swirling airflow is provided on the peripheral surface of the guide cover frame toward the inner wall of the pad cover. The floor polisher having a dust collecting function according to claim 1.