JPH02291830A - Vertically arranged device for squeegee for floor surface cleaner - Google Patents

Abstract

PURPOSE:To enable moving a vehicle backward and the pulling-up working of a squeegee, to be performed easily and certainly with one touch by arranging the squeegee handle of a mechanism for enabling the pulling-up state of the squeegee to be retained, a handle for moving backward, and a motor switch for moving the vehicle backward. CONSTITUTION:When a squeegee handle 10 is rotationally moved to be pulled up to a position exceeding a dead point, then a squeegee 7 is pulled up from a floor surface, and its state can be retained. Besides, when a handle 11 for moving backward is pulled up to be rotationally moved in a state that the squeegee handle 10 is kept moved down, then the squeegee handle 10 is interlocked to be rotationally moved and the squeegee 7 is pulled up from the floor surface and in the meantime, the reverse rotation motor switch 15 of a running motor 2M is turned ON, and a vehicle 1 can 6e moved backward. Besides, when hands are separated from the handle 11 for moving backward, then by the tractive forces of springs 15, 17, both the handles 10, 11 are immediately reset in a state before they are rotationally moved. Accordingly, the motor switch 18 is turned OFF and the moving-backward of the vehicle 1 is stopped, and at the same time, the squeegee 7 is earthed on the floor surface again.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used in the technical field of floor cleaning machines that clean floor surfaces with brushes (pads).
This invention relates to a device that moves a squeegee up and down to suction and wipe off dirty water generated during cleaning.

[Conventional technology]

A floor cleaning machine (scrubber) has a structure that uses a rotating brush to clean the floor while discharging detergent solution or clean water, and then sucks up the waste water generated by cleaning with a squeegee and wipes it clean. A hand-push type that cleans while pushing,
There are two types: the self-propelled walking type, in which the worker drives the vehicle while walking, and the self-propelled boarding type, in which the worker rides on the washing machine and cleans it while driving it. In the case of a floor cleaning machine, an operating handle is provided at the rear of the vehicle body.
After setting the forward/backward switch to the forward side, the worker presses down on this handle to turn on the micro switch.
Alternatively, when the switch 1 knob provided on the fixed operating handle is turned on, or the travel switch provided on the vehicle body is turned on, the travel motor starts operating and the vehicle travels forward. The rotation of the cleaning brush and the suction of the squeegee are used to clean the floor, suck in waste water, and wipe the floor.

On the other hand, the squeegee installed at the rear of the car body for suctioning sewage,
The suction port of the squeegee sticks to the floor surface due to the suction action of the vacuum, and the suction port of the squeegee is better able to follow the floor surface that has been cleaned with the cleaning brush. A rotating shaft for connection is provided at the front, and the mechanism is such that it moves while being dragged by the vehicle body.

Therefore, when moving the vehicle backwards, the squeegee must be pulled up from the floor using a pulling cord or the like, since the squeegee's horizontal and vertical movements become unstable.

[Problem to be solved by the invention]

Therefore, when moving the floor cleaning machine backwards, first raise the squeegee from the floor using the up/down lever, etc., then switch the forward/backward movement switch to the backward side, and then press down on the operating handle to move the micro squeegee up and down. The operation was extremely troublesome because a total of three operations were required to turn on the switch.

Also, if your body gets caught between the operating handle and a wall while reversing the above-mentioned Yokinari floor cleaning machine, your abdomen will get in the way and you will have to return the operating handle to a horizontal position and turn off the micro switch. Also, it is difficult to immediately reach the forward/reverse switch and change the switch, so the vehicle may continue to move backwards, which is extremely dangerous.

Furthermore, when the above-mentioned squeegee is moved forward for purposes other than cleaning, it is necessary to pull it up from the floor so that it does not get in the way, but with conventional floor cleaners, the up and down levers must be pressed during this movement. It was necessary to keep pulling it up, which made the operation extremely complicated and posed a safety problem.

Therefore, the technical problem of the present invention is to be able to easily and reliably perform the reversing of the vehicle body and the pulling up of the squeegee with a single touch, and to be able to quickly stop the reversing of the vehicle body in case of an emergency.
Furthermore, it is an object of the present invention to provide a squeegee up and down device for a floor cleaning machine that can hold the squeegee in a raised state as required.

[Means to solve the problem]

In order to solve the above technical problem, the measures taken in the present invention are as follows.

In a self-propelled walk-behind floor cleaning machine that cleans the floor by driving the vehicle while operating the operating handle provided at the rear of the vehicle, (1) A squeegee is pulled up to the tip of the vehicle at the rear of the vehicle. A squeegee handle has a structure in which a string and a spring for pulling the handle back are attached, and when the squeegee is turned in one direction against the pulling force of the spring and crosses the dead point, the squeegee remains pulled up by the pulling string. shall be established.

(2) Similarly, at the rear of the vehicle body, a spring for pulling back the handle is attached to the tip side, and an operating lever that engages with the tip of the squeegee handle from below and can be rotated integrally is attached to the reverse handle. should be installed alongside the squeegee handle mentioned above.

(3) A motor switch for reversing the vehicle body that is turned on when pressed by the operating lever is provided on the rotation path before the operating lever reaches its dead point. [Operation] The above means operates as follows.

■The factors mentioned in (1) above mean that when the squeegee handle is rotated upward, the pulling string can pull the squeegee up from the floor, and when the handle is further rotated and the squeegee passes beyond the dead point. The squeegee can be held in a raised position against the traction force of the spring, so when the floor washer is normally moved, the squeegee remains raised above the floor surface even if you take your hand off the squeegee handle. enable.

■The element mentioned in (2) above is that when the retraction handle is rotated upward, the operating lever engages the tip of the squeegee handle and rotates it upward together, so the pull-up cord pulls up. the squeegee from the floor.

■The element mentioned in (3) above is that the operating lever, which is rotated upward in accordance with the turning operation of the reversing handle, turns on the motor switch for reversing the vehicle at the same time as the squeegee is pulled up. Therefore, the vehicle body can be moved backwards and the squeegee can be pulled in a single motion by operating a single reverse handle. , that is, at the change point, so in an instant, if you let go of the reverse handle, the pullback spring will pull back the reverse handle and turn off the motor switch, so the vehicle will stop moving backwards immediately. enable.

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

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the squeegee up and down device for a floor cleaning machine according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are side views showing an example of a floor cleaning machine equipped with a squeegee lower device according to the present invention; 1 is a diagram showing the shape of a cup. 1 is the eastern body, 2a and 2b are wheels and casters for running, 2M is a running motor that rotates 111 wheels 2a, and 3 is a washing machine rotated by motor 3M. Showing the brush.

Also. 5S and 5T are a fresh water (detergent solution) tank and a dirty water tank mounted on the vehicle body 1, and fresh water or detergent solution for cleaning is supplied to the brush 3 from the fresh water tank 5S. Furthermore, 4 is a blower for suctioning sewage attached to the sewage tank 5T, which is rotated by the motor 94M.
It acts on the squeegee 7 through the squeegee to suck and collect the cleaning waste water on the floor into the water tank 5T.

Reference numeral 8 denotes an operation handle whose both ends 8a, 8a are attached to left and right brackets la, la protruding from the rear surface of the vehicle body 1 so as to be movable up and down.
It is kept in a horizontal position at all times due to the pulling action of the motor, and when it is pushed down as shown by the imaginary line in Figure 1, a microswitch (not shown) is turned on to operate the traveling motor 2M. It is configured. 9 is a hand switch attached to the operating handle 8 for both starting and speed adjustment, MS is the main switch for operation, ■ is for each motor 2M,
3M and 4M power supply batteries, 7a is a rotating arm to which the squeegee 7 is attached, 14 is a pulling string for the squeegee 7 (
wire).

Next, reference numerals 10 and 11 are a squeegee handle and a reverse handle attached to the rear surface of the vehicle body 1 side by side, and a third
The figure and FIG. 4 are detailed views thereof.

That is, the squeegee handle 10 for vertically moving the squeegee 7 described above has its bent tip side 10a attached to the mounting plates 1b and lc in the vehicle body 1 so as to be vertically movable, and the tip portion thereof is rotatably mounted. At the same time as attaching the lever 12, the tip of the pullback spring 15 is hung on the shaft 13 attached to the rotating lever 12, and the upper end of the above-mentioned squeegee pull-up string 14 is attached to the rejuvenating part 13b provided on the shaft 13. is attached, and this squeegee handle 1o is shown in Figure 5B (Figure 3).
When the pulling string 1 is rotated clockwise against the pulling force of the pulling spring 15 from the state shown in FIG.
4 is pulled and the squeegee 7 is pulled up from the floor surface, and when this rotation progresses to the state shown in No. 6Bl'l (view from arrow B in FIG. 3) and crosses the dead point, let go of the handle 10. Similarly, the pulling string 14
The structure is such that the state in which the squeegee 7 is pulled up is maintained as it is.

On the other hand, the reversing handle 11 for reversing the vehicle body 1 has its bent tip side 11a attached to the mounting plates 1d and le inside the vehicle body 1 so as to be movable up and down as shown in FIG. Engagement pieces 16a bent in an L shape on the lower side and the upper side, respectively.
The operating lever 16 is attached with a pressing piece 16b and a pressing piece 16b, and a pullback spring 17 is stretched between the suppressing piece 16b and the mounting plate 1d. When the lever is pulled up and rotated in the counterclockwise direction in the drawing against the pulling force of The squeegee handle 1 is engaged with the tip 13a of the shaft 13 from below.
0 are interlocked and rotated together, and the squeegee 7 is pulled up by the pulling string 14.

In addition, in FIGS. 5A and 6A viewed from the direction of FIG. 3 and arrow A in the same figure, reference numeral 18 denotes a motor switch for rotating the traveling motor 2M in the reverse direction to move the vehicle body 1 backward. , the switch piece 18a of this switch 18 attached to the mounting plate 1d is attached to the top. The actuating lever 16 rotates in accordance with the turning operation of the reversing handle 11, specifically, it protrudes onto the rotation path of the pressing piece 16b connected to the actuating lever 16, and prevents the reversing handle 11 from passing beyond the dead point. When the stopper 19 is rotated to the position where the stopper 19 is closed, the pressing piece 16b presses the switch piece 18a and turns on the motor switch 18.
The mechanism is such that the vehicle body 1 can be moved backwards.

Therefore, according to the squeegee up and down device for a floor cleaning machine according to the present invention, when the squeegee handle 1o is pulled up and rotated to a position beyond the dead point as shown in FIG. 6B, the squeegee 7
While the squeegee handle 10 can be pulled up from the floor and held in that state, if the retraction handle 11 is pulled up and rotated to the state shown in FIG. While pulling up the squeegee 7 from the floor, press the reverse motor switch 1 of the travel motor 2M.
8 is turned on to enable the vehicle body 1 to move backward.

In addition, the retreating handle 11, which has been pulled up and rotated against the pulling force of the pullback spring 17 and further the pullback spring 15 on the squeegee handle 10 side, is stopped at a position before exceeding the dead point. When the handle 11 is released, the handles 10.11 are immediately pulled back to their pre-rotation state by the traction force of the springs 15.17, so the motor switch 18 is turned off and the vehicle body 1 stops moving backwards. At the same time, the squeegee 7 is grounded again on the floor.

〔effect〕

Since the squeegee up and down device for a floor cleaning machine according to the present invention is as described above, by pulling up and rotating the squeegee handle upward, the squeegee can be held in a state raised above the floor surface. It is convenient when traveling,
Furthermore, if you want to move the vehicle backwards, simply pull up and rotate the reverse handle, and the squeegee will be pulled up and the reverse motor switch will be turned on at the same time, allowing the vehicle to move smoothly backwards. Furthermore, when you release your hand from the reverse handle that has been pulled up, the vehicle will stop moving backwards, so even if your body is caught between the operation handle of the vehicle that is reversing and a wall, you will be able to release your hand from the reverse handle. It is safe enough to immediately stop the vehicle from moving backwards by simply
It is suitable for use in self-propelled floor cleaning machines that are operated by workers while operating the operating handle.

[Brief explanation of the drawing]

1 and 2 are a side view and a plan view of a floor cleaning machine equipped with a squeegee up and down device according to the present invention, FIG. 3 is a plan view showing the configuration of the present invention, and FIG. 5A and 5B are front views showing the main structure of the present invention, and FIGS. 5A and 5B show the states of the retreat handle and the squeegee handle before rotation as seen from the direction of arrow A and the direction of arrow B in FIG. 3, respectively. 6A and 6B are side views showing the state in which each handle is rotated. 1 is the vehicle body, 2a is the wheel, 2M is the travel motor, 7 is the squeegee, 8 is the operation handle, 1o is the squeegee handle,
11 is a handle for reversing, 13a is a tip, 14 is a pull string for a squeegee, 15 and 17 are pull-back springs, 16 is an operating lever, and 18 is a motor switch for reversing.

Claims (1)

[Claims] In a self-propelled walk-behind floor cleaning machine that cleans the floor by driving the vehicle while operating the operating handle provided at the rear of the vehicle, a squeegee pull-up cord and a handle are attached to the tip of the vehicle at the rear of the vehicle. A handle for a squeegee is equipped with a spring for pulling back, and has a structure that allows the squeegee to remain pulled up by a pulling string when it rotates upward against the pulling force of the spring and crosses a dead point;
Similarly, a spring for pulling back the handle is attached to the tip side, and a retracting handle is installed in parallel with an operating lever that engages with the tip of the squeegee handle from below and can be rotated as a unit. A squeegee up-and-down device for a floor washer, characterized in that a motor switch for reversing the vehicle body, which is turned on by being pushed by the operating lever, is provided on the rotation path before reaching the dead point of the lever.