JP3344882B2 - Replacement device for brush or pad in floor cleaning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor cleaning machine for cleaning a floor by rotating a cleaning brush formed in a roll shape, or a polisher for cleaning a floor surface by rotating a polishing pad also formed in a roll shape. It belongs to the technical field of a floor polisher that performs glazing (hereinafter collectively referred to as a floor cleaning machine), and specifically, a cleaning brush or a polisher pad can be freely replaced. The present invention relates to a brush or pad replacement device in a floor cleaning machine.

[0002]

2. Description of the Related Art For example, in a large-sized floor cleaning machine such as a ride-on type floor cleaning machine as disclosed in Japanese Utility Model Laid-Open No. 2-59757, a cleaning brush or a polishing roll is usually located on the vehicle body side. When cleaning a large area, the cleaning brush or gloss is wider than the car body so that a wide area of the floor can be cleaned or polished at one time. It is desired to use a dispensing roll.

[0003]

However, when a cleaning brush or a polishing pad longer than the width of the vehicle body is attached, when the vehicle body is moved to a target location, the tip of the brush or pad that has traveled may be damaged. There are traffic problems, such as damage to wall surfaces or equipment, or damage to doors or impediment to entrances by hitting doors. In such a space, the vehicle body cannot be stored, and there is a disadvantage that an unnecessarily large storage space must be provided. Therefore, there is a natural limitation in installing a long cleaning brush or a polishing pad in advance.

When replacing a cleaning brush or a polishing pad, a cover for covering the upper surface of the brush or the pad is removed, or the cover is replaced with one having a size corresponding to the length of the brush or the pad. You have to do
It was very complicated.

Accordingly, the technical problem of the present invention is that the length of the cleaning brush or the polishing pad can be freely selected as long as necessary, and that the replacement can be performed extremely easily. It is an object of the present invention to provide a brush or pad replacement device for a floor cleaner.

[0006]

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

In a floor cleaning machine configured to clean or polish a floor surface by rotating a cleaning brush or a polishing pad formed in a roll shape,

(1) A holder for rotatably supporting both ends of the cleaning brush or the polishing pad is provided on both sides of the vehicle body, and the cleaning brush or the polishing pad is detachably attached to each of these holders. With the configuration, at least one of the holders can be moved back and forth in the lateral direction with respect to the vehicle body,
In addition, a lock mechanism for locking the movable support arm in the lateral direction is provided on the vehicle body side while being attached to the movable support arm configured to be rotatable in the vertical direction.

(2) Two long and short rotation support shafts and a rotation stop shaft are protruded side by side on the inner surface of the movable support arm to which one holder is attached, and these two shafts are connected to one side of the vehicle body. A lock mechanism capable of slidably fitting into each shaft hole of the fixed bearing provided on the vehicle body and providing a lock mechanism capable of locking one or both of the rotation support shaft and the rotation stop shaft on the vehicle body side. .

(3) Along the inner or outer surface of the rotating chamber cover which covers the upper surface of the cleaning brush or the polishing pad, the inside of the rotating chamber cover is moved to the side of the vehicle body in accordance with the movement of the movable support arm. A slide cover that can be widened or narrowed in any direction must be slidably mounted.

(4) One side of the rotating chamber cover which covers the upper side of the cleaning brush or the polishing pad is covered with a side seal plate which can be opened and closed by sliding the one side in the longitudinal direction of the vehicle body.

The means described in (1) to (4) operate as follows.

According to the means described in the above (1), when replacing the cleaning brush or the polishing pad, the lock by the lock mechanism is released and the movable support arm is pulled forward (outward of the vehicle body). If the brush or pad that is being worn can be removed from both holders and removed from the car body, and then a brush or pad longer than the width of the car body is installed,
Place a replacement brush or pad between both holders with the movable support arm in the extended state, and then lock the movable support arm with a lock mechanism to move one end of the longer brush or pad to the outside of the vehicle body. In order to replace the old and new brushes or pads, the movable support arm is pivoted upward and the side of the vehicle body is opened to facilitate the replacement work. To be able to do.

According to the means described in the above (2), the movable support arm to which one of the holders is mounted is such that both the long and short rotation support shafts and the rotation stop shaft are fitted into respective shaft holes of the fixed bearing. When it is inserted, its mounting state is held by these two shafts to support the cleaning brush or the polishing pad, but the movable support arm is pulled out in the lateral direction of the vehicle body to fix the short rotation stop shaft. When the movable support arm is pulled out from the shaft hole of the bearing, the movable support arm can be freely rotated up and down with the longer rotation support shaft as a fulcrum. Therefore, the movable support arm is fixed and avoided from moving upward. Rotation can be performed without providing a locking device or the like, or engaging and disengaging these devices one by one.
Enables switching with one touch.

According to the means described in the above (3), when the movable support arm is slid in the lateral direction of the vehicle body in replacing the cleaning brush or the polishing pad, the rotation chamber cover is moved in accordance with the movement of the movable support arm. Can be adjusted to the size according to the length of the brush or pad for replacing the inside of the rotation chamber cover by sliding the slide cover along Since it is not necessary to replace the rotating chamber cover each time, it is possible to simplify the brush or pad replacement operation.

According to the means described in the above (4), when replacing the cleaning brush or the polishing pad, the side seal plate covering one side surface of the rotating chamber cover is also slid in the front-rear direction of the vehicle body to thereby rotate the rotating chamber. Since the side surface of the cover can be opened, the brush or the pad can be replaced very easily, in combination with the above-described pivotal movement of the movable support arm upward.
Moreover, it is possible to perform the work efficiently.

As described above, the above (1) to (1)
By solving the above technical problem by means of (4),
The problem of the conventional technique can be solved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a brush or pad changing device in a floor cleaning machine according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a partially sectional side view of a floor washer provided with a brush or pad changing device according to the present invention, and FIG. 2 is a partially sectional plan view thereof. 1, 1 is a floor washer, 2 is a car body, 3 and 4 are front and rear wheels for traveling, 5 is a tank for washing water and recovered sewage (actually provided separately), 6 Is a roll-type cleaning brush rotated by the motor 18 to clean the floor,
Reference numeral 7 denotes a water supply pump that sends the cleaning water stored in the tank 5 through the pipe 8 to the nozzle 8S to supply the cleaning brush 6 with water.
The vacuum hose 9 sucks the sewage after washing from the floor surface by the suction action of a blower (not shown).
The squeegee is collected in the above-described tank 5 through the squeegee. In FIG.

Reference numeral 11 denotes a main shaft which extends laterally from the bottom of the vehicle body 2, and 12 denotes left and right support arms 12a, 12a.
The cleaning brush 6 rotates inside the rotation chamber cover 12 having a bottom surface and one side surface opened by a rotation chamber cover that is cantilevered and attached to the main shaft 11 using the above.

Reference numeral 16 denotes a fixed support arm attached to the other side of the rotary chamber cover 12, 18a a drive pulley of the motor 18, and 16H a cleaning brush 6 rotatably supported on the other side of the rotary chamber cover 12. One holder, 18X
Is an interlocking pulley 1 attached to the rotating shaft of the holder 16H.
6a and a drive belt extending between the drive pulleys 18a of the motor 18 are shown.

Further, in the figure, reference numeral 13 denotes a slide cover which has the same shape as the outer shape of the rotating chamber cover 12 and is slidably mounted in the vehicle body 2 in a lateral direction along the inner surface of the rotating chamber cover 12. Reference numeral 14 denotes a water tank attached to the inside of the rotating chamber cover 12 for receiving the cleaning sewage, and 14T denotes a water tank 14 which slides in the horizontal direction together with the slide cover 13.
A slide water tank fitted in the inside of each of the water tanks 15 is a guide blade for guiding the cleaning sewage splashed up by the cleaning brush 6 into each of the water tanks 14 and 14T.
The cleaning sewage collected in the step (1) is returned to the cleaning brush 6 through the circulation pipe 14X.

Reference numeral 17 denotes a long and short rotation support shaft 19 and a rotation stop shaft 20 projecting in parallel from one inside surface to a holder 17H for supporting the other end surface of the rotating brush 6 on the other inside surface. The movable support arm 17 is rotatably mounted. The movable support arm 17 has a shaft hole 25a provided in a fixed bearing 25 mounted on one open side of the rotation chamber cover 12.
The rotation support shafts 19 and the rotation stop shafts 20 are slidably fitted into the respective rotation support shafts 25b, so that the rotation chamber cover 12 is mounted so as to be capable of moving forward and backward with respect to one side surface thereof.

Reference numeral 21 denotes a lock mechanism which can lock the rotation of each of the rotation support shafts 19 and the rotation stopping shaft 20. The lock mechanism 21 has a substantially mountainous shape as shown in the enlarged sectional view of FIG. A lock body 21 'formed into a shape, a movable pin 23T fitted in the inside 21a of the lock body 21' so as to be vertically movable, and an upper and lower stay in which a head 23 and a lower end of the movable pin 23T are slidably fitted. 27 and 26, and the lock body 21 'is always resiliently acted on upward to make the lock body 2
As shown in FIG. 4 (a), the left and right side surfaces of 1 'are connected to a lock spring 24 which presses and locks the two shafts 19 and 20 with a lower end of a movable pin 23T using a shaft 22a. When the operation lever 22 is rotated upward as shown in FIG. 4B, the movable pin 23T is pulled down together with the lock body 21 ', and the two shafts 19 and 20 are moved. It is designed to be free to slide.

The movable support arm 17 slides out of the vehicle body 2 to move the shorter one of the two long and short rotation support shafts 19 and the rotation stop shaft 20 described above. As shown in FIG. 5, when it is pulled out from one shaft hole 25b of the fixed bearing body 25, it freely rotates upward as shown in FIG.
The holder 17H is configured to be able to pivot around from one side.

The reference numeral ST generally designates a side seal stay attached to one outer surface of the rotating chamber cover 12. The side seal stay ST is provided on the rotating chamber cover 12.
A slide plate 29 slidably mounted on the outer surface of the slidably in the lateral direction, and a mounting plate 3 connected to the slide plate 29 at a right angle.
The slide cover 13 and the slide water tank 14T are mounted so as to slide integrally with the slide plate 29 described above.

Reference numerals 29a and 29T denote slide guide pins and fixing bolts of the slide plate 29 of the side seal stay ST, and reference numeral 28 denotes the side seal stay ST.
During operation, the side seal plate 28 closes one side surface of the rotating chamber cover 12 which is opened to prevent the cleaning sewage splashed by the cleaning brush 6 from splashing outside. are doing.

In each of the above figures and FIG.
8a is a guide pin protruding from the inner surface of the side seal plate 28, 28b is a stupid hole for a bolt 28T also drilled in the side seal plate 28, and 30b is a side hole of the side seal plate 28.
To be slidable in the front-rear direction of the vehicle body 2,
A guide slot for the guide pin 28a formed on the mounting plate 30 of the side seal stay ST, 30a is a stupid hole for a bolt 28T similarly provided on the mounting plate 30, and 30c is a nut fixed to the back side thereof. , This bolt 28T
Is removed, as shown in FIG. 6 or FIG.
Can be opened to open the side surface of the rotating chamber cover 12, and when the side seal plate 28 is returned and tightened with the bolt 28T, as shown in FIGS.
The two sides are closed.

The brush or pad changing device in the floor cleaning machine according to the present invention has the above-described configuration.
The cleaning brush 6 of the normal size S as shown in FIG.
When replacing the cleaning brush 6 'with a long size L as shown in FIG.
After removing 8T and 29T, the side seal plate 28 is opened and moved as shown in FIG.

Next, the operation lever 22 is turned upward to rotate the rotation support shaft 19 and the rotation stop shaft 20 by the lock mechanism 21.
5 and the movable support arm 17 is pulled out toward the user as shown in FIG. 5, the support of the cleaning brush 6 by the holders 16H and 17H can be released. Further, as shown in FIGS. If the stop shaft 20 is disengaged from the shaft hole 25b and the movable support arm 17 is pivoted upward, the one side surface of the rotating chamber cover 12 is opened and the short cleaning brush 6 used so far can be removed to the outside. it can.

In this state, the cleaning brush 6 'of a long size to be replaced this time is set inside the rotation chamber cover 12, and
Next, the movable support arm 17 is pushed to move both holders 16.
H, 17H, the cleaning brush 6 'is supported, and both shafts 19, 2 by the lock mechanism 21 in this supported state.
0, and further, the side seal plate 28 is slid to the original closed state, and the bolt 28T is tightened. Similarly, the bolt 29T is tightened to fix the side seal stay ST. , It is possible to perform floor cleaning.

When replacing the cleaning brush 6 ', the slide cover 13 and the slide water tank 14T slide together with the slide of the side seal stay ST, so that the size of the rotating chamber cover 12 and the water tank 14 is changed. When replacing the long size cleaning brush 6 'with the original normal size cleaning brush 6 according to the same procedure, the sizes of the rotating chamber cover 12 and the water tank 14 are also changed. It can be returned to its original size.

Although the embodiment shown in the drawings shows a boarding type floor washer, the present invention can be applied to a walking traveling type floor washer in which a worker operates while walking. Yes, and it is needless to say that the present invention can be applied to a floor polisher that rotates a roll polisher using the same configuration.

[0034]

As described above, according to the brush or pad replacement apparatus in the floor cleaning machine according to the present invention, the size of the cleaning brush or polishing pad can be freely selected and replaced. It can be used, and its replacement work can be performed very easily, and the cleaning efficiency can be increased by widening or narrowing the cleaning width according to the condition of the floor surface to be cleaned or polished. In addition, the cleaning brush or the polishing pad of a long size can be removed when moving to allow passage through a narrow place such as a door, and the storage space can be similarly narrowed as much as possible.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of a floor cleaner in which a brush or pad replacement device according to the present invention is implemented.

FIG. 2 is a partially sectional plan view of the same.

FIG. 3 is a partial cross-sectional plan view showing a state where a long-size cleaning brush is attached.

FIG. 4A is a front sectional view showing a state where the lock mechanism is locked, and FIG. 4B is a front sectional view showing a state where the lock mechanism is unlocked.

FIG. 5 is a plan view of a main part showing a state in which a cleaning brush is replaced by sliding a movable support arm.

FIG. 6 is a side view of a main part showing a state in which the movable support arm is pivoted upward to avoid upward and one side surface of the rotation chamber cover is opened.

FIG. 7 is a configuration diagram illustrating a mounting structure of a side seal stay and a side seal plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor washing machine 2 Body 6 Cleaning brush 6 'Long-size cleaning brush 12 Rotation chamber cover 13 Slide cover 16H, 17H holder 17 Movable support arm 18 Motor 19 Rotation support shaft 20 Rotation stop shaft 21 Lock mechanism 25a, 25b Shaft hole 28 Side seal plate ST Side seal stay

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47L 11/282 A47L 11/24

Claims (4)

(57) [Claims] 1. A floor cleaning machine configured to clean or polish a floor surface by rotating a cleaning brush or a polishing pad formed in a roll shape, wherein the cleaning is performed on both sides of a vehicle body. A holder for rotatably supporting both ends of a brush or a polishing pad is provided, and a cleaning brush or a polishing pad is detachably attached to each of these holders, and at least one of the holders is attached to the vehicle body. Attaching to a movable support arm configured to be able to move forward and backward and to be rotatable vertically, a lock mechanism is provided on the vehicle body side to lock the movable support arm from moving forward and backward. A brush or pad changing device in a floor cleaning machine. 2. A long and short rotation support shaft and a rotation stop shaft are juxtaposed and protruded from an inner surface of a movable support arm to which one of the holders is attached. A lock mechanism that can be slidably fitted into each shaft hole of the fixed bearing provided on the vehicle body and that can lock one or both of the rotation support shaft and the rotation stop shaft on the vehicle body side as well. The brush or pad replacement device in the floor cleaning machine according to claim 1, wherein: 3. The inside of the rotating chamber cover is moved along the inner or outer surface of the rotating chamber cover covering the upper surface of the cleaning brush or the polishing pad in accordance with the forward / backward movement of the movable support arm. 2. A brush or pad replacement device in a floor cleaning machine according to claim 1, wherein a slide cover which can be widened or narrowed is slidably mounted. 4. A side surface of a rotating chamber cover that covers an upper surface of a cleaning brush or a polishing pad is covered with a side seal plate that can be opened and closed by sliding the one side surface in a longitudinal direction of the vehicle body. 2. A brush or pad changing device in the floor cleaning machine according to claim 1.