JPH11155789A - Floor surface polishing machine provided with dust collecting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely feed dust stored in a pad cover to the side of a filter bag by making a turning air current caused by a pad stronger by forming an annular gap to be the discharging path of dust while partitioning it at the outer peripheral part of a pad and providing a dust discharge port communicated with the filter bag successively in the outer peripheral tangential direction of this discharging path. SOLUTION: When polishing operation is performed while attaching a filter bag 11 to a top end part 10a of the dust discharging port, the surface of a floor is polished by a pad 3 to be rotated by a motor 4 at a high speed and on the other hand, various kinds of dust generated by polishing are fed and collected from a dust discharging path 2H of a pad cover 2 through the dust discharging port into the filter bag 11 while being put on a turning air current generated by rotating the pad 3. Further, an outer peripheral edge 6Z of a pad holder 6 attaching the pad 3 is bent downward and a dust collecting effect is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a floor polisher that polishes a floor by rotating a pad at a high speed with a motor while running by pushing an operation handle. Relates to a floor polisher with a function of collecting various dusts such as pad debris and dust on the floor generated when the pad is rotated at a high speed and polished without scattering to the surroundings. Things.

[0002]

2. Description of the Related Art A conventional hand-operated traveling floor polisher, in which a pad is rotated at a high speed by a motor while an operator pushes an operation handle to make the floor polished, polishes the upper surface of the pad and its surroundings. By covering with a pad cover, various kinds of dust generated at the time of rotation of the pad are prevented from scattering around.

However, if the pad is simply covered with the pad cover, dust accumulates inside the cover as the driving progresses, and the skirt attached to the lower end of the pad cover is rolled up or caught on an uneven surface or a step surface. If a gap is formed between the floor and the floor surface, there is a problem that dust accumulated inside the gap scatters vigorously together with the swirling airflow to contaminate the surroundings.

Therefore, as shown in, for example, Japanese Utility Model Application Laid-Open No. 5-39457, by connecting a filter bag to a pad cover via a duct, various dusts generated by polishing can be turned into a swirling airflow caused by rotation of the pad. It was conceived to carry the dust through a duct and collect it in a filter bag.

[0005]

However, only the swirling airflow generated by the pad rotating at a high speed in the pad cover has a small air volume, and the dust accumulated in the pad cover cannot be sufficiently fed into the filter bag.

[0006] Further, in the conventional floor polisher, since the dust is pushed into the filter bag and collected by the swirling airflow generated by the rotation of the pad, unlike the case where the air is sucked by the fan, the dust flows in a direction in which the airflow can easily flow. Dust flows freely, and as a result, the airflow swirled in the circumferential direction by the rotation of the pad may be directed directly into the filter bag, or may be swirled and returned to the pad side again. The generated and returned dust is sucked again to the pad side, or it turns around around it, and the dust penetrates and is trapped in the pad and accumulates on the bent parts of the pad holder and various flanges, etc. In some cases, the efficiency of dust collection is reduced.

In addition, since the dust is collected in the filter bag by the push-in method, there is a problem that the pushing force causes the airflow to leak from the skirt portion of the pad cover and the dust flows out to the outside. .

Therefore, a technical problem of the present invention is to make the swirling airflow generated by a pad rotating at a high speed in a pad cover stronger so that dust collected in the pad cover does not return to the pad or leak to the outside. The purpose is to surely send the dust to the filter bag side to enhance the dust collecting effect.

[0009]

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

[0010] The pad provided in the pad cover is rotated at a high speed by a motor to polish the floor surface, and the dust generated by the polish is sent to the filter bag from inside the pad cover by being put on a swirling airflow caused by the rotation of the pad. In a floor polisher configured to collect dust at

(1) An annular space serving as a dust discharge passage is defined inside the pad cover and on the outer peripheral portion of the pad, and a dust discharge port communicating with the filter bag in a tangential direction of the outer periphery of the discharge passage is connected. To set up. (Claim 1)

(2) The interval serving as a dust discharge passage is
Inside the pad cover and on the upper portion of the pad, a ring-shaped blocking wall having the same diameter as the pad or a diameter slightly smaller or larger than the pad is attached at intervals. (Claim 2)

(3) A filter bag mounting portion is provided on an upper portion of the pad cover, and a tip end of a dust discharge port provided in a tangential direction of an outer periphery of the discharge passage is bent toward the center of the upper surface of the pad cover, and the end thereof is bent. Connect the end opening to the filter bag attached to the upper part of the pad cover.
(Claim 3)

(4) While providing air permeability to the pad itself, air vents are provided for a part or a plurality of pad holders attached to the upper surface of the pad and a part or a plurality of pad covers, respectively. To be provided. (Claim 4)

(5) A skirt is attached to the lower end of the pad cover so that the bottom side of the pad cover is always in contact with the floor, and the lower side of the skirt is vertically or slightly inwardly inclined. thing. (Claim 5)

(6) The outer peripheral edge of the pad holder for mounting the pad on the lower side is slightly bent downward along the outer peripheral surface of the pad. (Claim 6)

According to the means of the first aspect described in the above (1), an annular dust discharge passage is defined and formed in the outer peripheral portion of the pad which contacts and grinds the floor surface while rotating at a high speed. In the tangential direction of the outer periphery of this discharge passage, there is a dust discharge port that leads to the filter bag,
The dust generated by the polished rotation of the pad can be swirled vigorously in this dust discharge passage without returning to the pad or leaking to the outside, and it is possible to collect dust in the filter bag reliably during the turn To

According to the means according to the second aspect described in the above (2), dust generated by polishing rotation of the pad is removed.
By attaching the ring-shaped blocking wall to the upper portion of the pad, the dust can be swirled vigorously in the discharge passage provided in the pad cover, so that this dust does not leak to the outside or is sent back to the pad side, This makes it possible to reliably send dust into the filter bag and collect dust.

According to the third aspect of the present invention, the tip end of the dust outlet provided in the tangential direction of the outer periphery of the dust discharge passage is bent toward the center of the upper portion of the pad cover. Therefore, the tip opening can be connected to a filter bag attached to the upper portion of the pad cover to collect dust, and the filter bag can be attached to the upper portion of the pad cover to make the entire floor polisher compact and beautiful. Allows you to build.

According to the means of claim 4 described in the above (4), the air passes through the inside of the pad provided with air permeability from the front end portion by the centrifugal force of the pad rotating at high speed in the pad cover. The air is released as a swirling airflow into the pad cover, and at the same time, the suction effect is exerted on the vent hole of the pad holder by the vacuum effect generated between the pad bottom surface and the floor surface. Since the air is sucked from the ventilation holes of the holder through the inside of the pad, the amount of air blown into the filter bag can be increased to enhance the dust collecting effect, and the pad can be prevented from being clogged.

According to the means of claim 5 described in the above (5), the skirt attached to the lower end of the pad cover is
This skirt prevents the dust swirling in the dust discharge passage from leaking to the outside, and the skirt guides the dust swirling direction in the discharge passage upward, so that the swirling dust passes through the dust discharge port to the filter bag side. To make it easier to send.

According to the means of claim 6 described in (6), since the outer peripheral edge of the pad holder is bent downward, dust does not accumulate on this portion or on the upper surface portion of the pad holder, and thus the pad holder is not bent. Most of the dust generated by the glazing rotation is sent to the discharge passage side, and the dust collecting effect can be enhanced.

As described above, the above (1) to
The technical problem described above can be solved by the means described in (6), and the problem of the conventional technology can be solved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a 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 of a floor polisher having a dust collecting function according to the present invention, FIG. 2 is a partial side sectional view showing an enlarged main part of the present invention, and FIG. FIG. 4 is a cross-sectional view, and FIG. 4 is a plan view.
Is a pad cover attached to the front bottom surface side of the polisher 1, and 3 is a pad provided with air permeability per se, which is rotatably mounted inside the pad cover 2, and is an outer case 1a of the polisher 1. When the rotation shaft 4a of the motor 4 mounted inside the motor rotates,
The pad 3 is configured to be rotated at a high speed in conjunction therewith.

Reference numeral 2S denotes a skirt attached to the lower end of the pad cover 2 via a holder 2Z. The skirt 2S is formed by using an elastic material such as rubber or a fiber material. By constantly contacting the floor surface to prevent dust from leaking, and by providing the lower end side vertically or slightly inclined inward, the pad 3
Is configured to guide upward the flow of dust swirling inside the pad cover 2 (specifically, in a dust discharge passage described later) by the rotation of.

Reference numeral 5 denotes a connection flange fixed to the lower end of the rotary shaft 4a of the motor 4 with a screw 4K, reference numeral 6 denotes a pad holder integrally mounted on the bottom side of the connection flange 5 using mounting screws 5T, and reference numeral 7 denotes a pad holder. By screwing and tightening a bolt portion 6T hanging vertically from the center of the bottom surface of the pad holder 6, the pad 3 is held between the flange 7a and the pad holder 6.
3X is a space formed on the bottom surface of the pad 3 by tightening the tightening nut 7.

Next, 6a is a vent provided in the pad holder 6, 2a is a vent provided in the center of the ceiling plate 2T constituting the pad cover 2, 1X is a chassis of the polisher 1, 1S Is a frame of the chassis 1X provided on the upper portion of the pad cover 2, and 1V is a ventilation opening opened in the frame 1S, on which the motor 4 is mounted, and a rear portion of the chassis 1X. On the upper side, a battery 12 for power supply is mounted.

6Z is an outer peripheral edge of the pad holder 6 slightly bent downward along the outer peripheral surface of the pad 3, and 8 stands upright on the rear part of the polishing machine 1 via left and right leg rods 8a, 8a. 8T is an operation box attached to the upper end of the operation handle 8, and 13 is an axle 13 provided on the chassis 1X.
The wheels 14a and 15a are auxiliary wheels mounted on the rear of the chassis 1X, and 14a is an axle of the auxiliary wheels 14.

Reference numeral 9 denotes a ring-shaped (cylindrical) cut-off wall attached to the inner ceiling surface of the pad cover 2, which is formed to have the same diameter as the pad 3 or a diameter slightly smaller or larger than the pad. The blocking wall 9 surrounds the upper surface side of the pad 3 so that
Inside the pad cover 2 and the skirt 2S, the outer periphery of the pad 3 has a ring-shaped interval, that is, a ring-shaped dust discharge passage 2H.

In FIGS. 3 and 4, reference numeral 10 denotes a cylindrical dust discharge port connected continuously in the tangential direction of the outer circumference of the discharge passage 2H.
This dust discharge port 10 in which the root end port 10H is widely opened and connected to a part of the upper surface of the discharge passage 2H, once rises the root end side upward, and moves the middle to the center of the upper surface of the pad cover 2 It is formed in a substantially elbow (bend) shape bent at a right angle, and its tip end port 10a is mounted on a filter holder 11a provided on an upper portion of the pad cover 2, specifically, on an upper surface of the frame 1S. It is inserted and connected to a filter bag 11 (a commercially available filter bag for a vacuum cleaner may be used).

The ventilation holes 6a provided in the pad holder 6 described above are drawn by the suction force generated by the vacuum action generated inside the pad 3 and the space 3X by the high-speed rotation of the pad 3. 2 and the outside air sucked into the pad cover 2 through the ventilation holes 1V and 2a provided in the frame 1S and the pad cover 2 as shown by arrows in FIG. Can be sent to the space 3X side of the pad cover 2 as a result.
A strong swirling airflow is generated in the exhaust passage 2 </ b> H.

Since the floor polishing machine according to the present invention has the above-described configuration, the filter bag 11 is attached to the front end 10a of the dust discharge port 10 to perform the polishing operation as shown in FIGS. Then, the pad 3, which is rotated at a high speed by the motor 4, polishes the floor surface to polish (buffing), and various dusts generated by the polish are put on the swirling airflow generated by the rotation of the pad 3 to cover the pad. The dust can be sent from the dust discharge passage 2H through the dust discharge port 10 into the filter bag 11 and collected.

Further, the outer peripheral edge 6Z of the pad holder 6 to which the pad 3 is attached is bent downward so that dust is not deposited on either the outer peripheral edge 6Z or the upper surface of the pad holder 6. The dust collection effect can be enhanced by sending most of the dust generated by the polishing rotation of the pad 3 into the discharge passage 2H and turning it.

The swirling airflow generated by the rotation of the pad 3 is discharged through the inside of the pad 3 provided with air permeability by centrifugal force to the discharge passage 2H in the pad cover 2 from the tip end thereof, and is divided into an annular shape. Octopus discharge passage 2H
A strong swirling airflow is generated inside the pad 3, and the outside air is sequentially taken into the pad 3 from each of the vents 6 a of the pad holder 6 by the vacuum action generated in the inside of the pad 3 and the bottom space 3 </ b> X. Therefore, a more powerful swirling airflow is constantly generated in the discharge passage 2H, and dust generated by glazing due to the rotation of the pad 3 is placed on the strong swirling airflow and connected tangentially to the discharge port 1H.
0 and can be sent to the filter bag 11 to collect dust.

Further, according to the present invention, the skirt 2S attached to the lower side of the pad cover 2 not only prevents the leakage of dust but also guides the flow of the dust swirling in the discharge passage 2H upward. The dust inside can be reliably sent to the discharge port 10 side and collected in the filter bag 11.

Further, dust collected in the same commercially available filter bag 11 as that used for household vacuum cleaners, for example, is removed by removing the filter bag 11 from the distal end port 10a of the discharge port 10. The filter bag 11 can be disposed of, and the filter bag 11 is bent in the middle of the discharge port 10 toward the upper surface of the pad cover 2 so that the upper part of the pad cover 2 is not disturbed by the operation of the polishing machine. Can be mounted and used well.

[0038]

As described above, the floor polisher having a dust collecting function according to the present invention is as described above, in which the swirling airflow generated inside the pad holder due to the rotation of the pad is made stronger, so that the inside of the pad cover is removed. The dust can be quickly sent to the filter bag side, and the floor can be polished without any trouble without scattering the dust around.

[Brief description of the drawings]

FIG. 1 is a side view of a floor polisher having a dust collecting function according to the present invention.

FIG. 2 is a partially cross-sectional side view showing an enlarged main part of a floor polisher having a dust collecting function according to the present invention.

FIG. 3 is an enlarged partial cross-sectional front view of a main part of the present invention.

FIG. 4 is an enlarged plan view showing a main part of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor polishing machine 2 Pad cover 2S Skirt 2H Discharge passage 3 Pad 4 Motor 6 Pad holder 6a Vent 6Z Peripheral edge of pad cover 9 Blocking wall 10 Discharge port 11 Filter bag

Claims (6)

[Claims] 1. A pad provided in a pad cover is rotated at a high speed by a motor to polish a floor surface, and dust generated by the polish is put on a swirling airflow caused by the rotation of the pad, so that a filter bag is provided from inside the pad cover. In a floor polisher configured to collect dust by feeding into the pad, an annular space serving as a dust discharge passage is formed inside the pad cover and on an outer peripheral portion of the pad, and the dust passage is formed. A floor polisher with a dust collection function, characterized by having a dust outlet connected to the filter bag in the tangential direction of the outer circumference. 2. A blocking wall formed in the shape of a ring having the same diameter as the pad, or a diameter slightly smaller than or larger than the pad, inside the pad cover and at an upper portion of the pad. The floor polisher having a dust collecting function according to claim 1, wherein the floor polisher is configured by being attached at intervals. 3. A filter bag mounting portion is provided on an upper portion of the pad cover, and a distal end of a dust outlet provided in a tangential direction of an outer periphery of the discharge passage is bent toward a center of an upper surface of the pad cover, and the distal end is bent. 2. A floor polisher with a dust collecting function according to claim 1, wherein the filter is connected to a filter bag attached to an upper portion of the pad cover. 4. An air vent is provided in each of a part or a plurality of pad holders attached to the upper surface of the pad and a part or a plurality of parts of the pad cover, while providing air permeability to the pad itself. The floor polisher having a dust collecting function according to claim 1, wherein: 5. A pad cover having a lower end provided with a skirt having a bottom portion constantly in contact with a floor surface, and a lower portion of the skirt being vertically or slightly inclined inward from the vertical. Claims 1 and 2,
A floor polishing machine provided with the dust collection function according to 3 or 4. 6. The glossy floor provided with a dust collecting function according to claim 4, wherein the outer peripheral edge of the pad holder for mounting the pad on the lower side is slightly bent downward along the outer peripheral surface of the pad. Departure.