JP3196905B2 - Floor washer - 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 with a cleaning liquid.

[0002]

2. Description of the Related Art Conventionally, floor cleaning machines for cleaning a floor with a cleaning liquid have been used. Conventional floor cleaning machines
A cleaning liquid supply means, a polisher comprising a rotating brush or pad for polishing the floor with the cleaning liquid, a floor suction port (water suction port) for sucking the cleaning liquid after cleaning from the floor surface, and a hose connected thereto. And a vacuum cleaner for performing suction from the floor surface suction port. Conventional floor cleaning machines generally have a floor suction port located behind the polisher, first clean the floor with a rotating polisher, and move the cleaning machine forward as it is, through the rear floor suction port. The floor surface is cleaned by absorbing the cleaning liquid remaining on the floor surface. There are usually obstacles on the floor, such as telephone line malls and other electrical wiring. Such obstacles can be overcome by lifting the floor suction from the floor, but in the conventional floor cleaning machine, to lift the floor suction, first stop the vacuum cleaner and reduce the suction force of the floor suction. The floor suction was mechanically lifted from the floor by operating the hand or foot lever. Therefore, when an obstacle exists, the cleaning operation efficiency has been significantly reduced.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a floor cleaning machine capable of suppressing a decrease in the efficiency of the cleaning operation due to obstacles on the floor to be smaller than a conventional floor cleaning machine. .

[0004]

Means for Solving the Problems As a result of earnest research, the present inventor has found that a floor suction port is electrically lifted using a solenoid, and a switch for this solenoid is used as a changeover switch for a vacuum cleaner. Is turned on and the vacuum cleaner is automatically turned on at the same time
The present inventors have conceived that it is possible to drastically reduce the reduction in work efficiency due to obstacles by configuring the configuration to be F, and completed the present invention.

That is, the present invention relates to a floor washer having a vacuum cleaner and a floor suction port connected to the vacuum cleaner via a hose, wherein the floor suction port is connected to a solenoid via a wire. The solenoid and the cleaner are connected to a changeover switch so that only one of the solenoid and the cleaner is operated. When the changeover switch is connected to the solenoid, the solenoid is operated. The floor cleaner is configured to be turned off at the same time as the floor suction port is lifted by the wire.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The principle of the present invention will be described with reference to FIG.
As shown in FIG. 1, the washing machine of the present invention has a cleaner 10 that exerts a suction force, and a floor suction port 14 connected to the cleaner 10 via a hose 12. The floor suction port 14 is provided to be rotatable in the direction of arrow A in response to an external force received from a wall surface, a desk leg, or the like. The floor suction port 14 is connected to a solenoid 18 via a wire 16. The wire 16 may be a thread or a string made of a material other than metal as long as it has sufficient strength and durability. A wire made of a material other than such a metal is referred to as a wire for convenience in this specification. As shown, the wire 16 is connected to the shaft 20.
May be connected to the floor suction port 14 via a. The solenoid 18 is mounted on a plate 22, and the plate 22 can be mounted on a polisher (not shown). The solenoid 18 is connected to the changeover switch 24 via a conductor, and the cleaner 10 is also connected to the changeover switch 2 via a conductor.
4 is connected. In the illustrated example, the shaft 2
0 is provided with a height adjusting lever 26, by which the height of the floor suction port 14 can be adjusted. This depends on the degree of wear of the brush or pad of a polisher (not shown) that supports the plate 22,
The height of the floor is adjusted to facilitate the close contact with the floor.

FIG. 2 shows a principle diagram of a circuit for connecting the solenoid 18, the cleaner 10 and the changeover switch 24. The changeover switch 24 has a configuration as shown in the figure. When the changeover switch is connected to the cleaner 10 as shown, the cleaner 10 operates and the solenoid 18 does not operate. When the changeover switch 24 is connected to the solenoid 18, the vacuum cleaner 10 is turned off, the vacuum cleaner is stopped, and the suction force of the floor suction is lost, and at the same time, the solenoid 18 is activated and the floor suction 14 is connected to the wire 16 and the shaft 20. Lifted off the floor through.

When the floor is cleaned using the floor cleaning apparatus of the present invention, the changeover switch 24 is connected to the cleaner 10 to perform cleaning. When an obstacle appears on the floor surface and the floor suction port 14 needs to get over the obstacle, the changeover switch 24 is connected to the solenoid 18 side. Then, as described above, the suction force of the vacuum cleaner 10 is cut off, and the solenoid 18 operates to lift the floor suction port 14 from the floor surface. After getting over the obstacle, the changeover switch 24 is connected to the cleaner 10 again. Then,
The solenoid 18 is turned off, the floor suction port 14 descends on the floor surface by its own weight, the cleaner 10 is turned on, and the cleaning operation is started again.

A more preferred embodiment on the plate 22 will be described in more detail with reference to FIGS. FIG.
The same members as those described in FIG. 2 are denoted by the same reference numerals and described. In this embodiment, the wire 16 is fixed to the top of the shaft 20 via two pulleys 28 and 30 provided on the plate 22 and one pulley (not shown). The shaft 20 has two springs 3
2, 32 'are connected, and the other ends of the springs 32, 32' are fixed to protrusions 34, 34 'on the plate 22, respectively. At both ends of the floor suction port 14, the floor suction port 1 is provided.
An impact buffering roller 36 is provided to reduce the impact when the end of the disk 4 hits a wall surface, a desk leg, or the like.

FIG. 4 shows how the springs 32 and 32 'shown in FIG. 3 are attached. Figure 4 shows the shaft 2
It is the figure which looked at the top of 0 from the top. In this embodiment, the projecting piece 38 is fixed to the shaft 20, and the springs 32, 3
One end of 2 ′ is connected to the shaft 20 via the protruding piece 38. The strengths of the springs 32 and 32 ′ are the same, and their tension is symmetrical with respect to the shaft 20.

As described with reference to FIG. 1, the floor suction port 14 is provided with an arrow A in accordance with an external force received from a wall surface, a desk leg, or the like.
3 and 4, the floor suction port 14 is connected to the solenoid even when the floor suction port is distorted due to external force in the embodiment described with reference to FIGS. When lifted from the floor by the operation of 18, the spring 32, 32 'always returns instantaneously in the standard direction, that is, the direction in which the longitudinal direction of the floor suction is perpendicular to the normal direction of travel of the washer. It is. Conventional scrubbers do not have such springs, so the scrubber had to travel about one meter for the distorted floor suction to return to normal. Needless to say, the work efficiency is highest when the direction of the floor mouthpiece is in the standard direction, and thus such a structure further improves the work efficiency.

FIG. 5 shows a solenoid 18 and a shaft 20.
Another embodiment having a different connection mode is shown. In this embodiment, the solenoid 18 is connected to a bar 40, the other end of which is rotatably connected to a bar 42. The wire 16 is connected to the other end of the bar 42 and the wire 1
6 is a shaft 2 through a pulley 44 arranged in a vertical direction.
Connected to 0. In this embodiment, the solenoid O
By N and OFF, the bars 40 and 42 perform a cam motion, and the wire 16 connected to one end of the bar 42 moves to move the shaft 20 up and down. According to this embodiment, the stress applied to the wire 16 is smaller than that of the embodiment shown in FIG. 3 described above, and the wear of the wire is smaller, and therefore the durability of the wire is increased.

[0014]

According to the present invention, the operation of lifting the floor suction from the floor surface and the operation of turning off the vacuum cleaner can be performed by one operation, and furthermore, the operation is performed only by operating the changeover switch with a finger. In addition, since the mechanical lever operation is not performed as in the related art, the working efficiency of the floor having obstacles is greatly improved. Further, in a preferred aspect of the present invention, when the floor suction is lifted from the floor surface, the floor suction automatically and instantaneously points in the standard direction, thereby further improving the working efficiency.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the principle of a floor cleaning machine of the present invention.

FIG. 2 is a circuit diagram showing the principle of the floor washer of the present invention.

FIG. 3 is a schematic view showing a preferred embodiment of the present invention.

FIG. 4 is an enlarged schematic view showing a connection portion of a spring in FIG. 3 in an enlarged manner.

FIG. 5 is a schematic view showing a second preferred embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Vacuum cleaner 12 Hose 14 Floor suction opening 16 Wire 18 Solenoid 20 Shaft 24 Changeover switch 32 Spring 32 'Spring 40 bar 42 bar

Claims (2)

(57) [Claims] 1. A floor cleaner comprising a cleaner and a floor suction connected to the cleaner via a hose, wherein the floor suction is connected to a solenoid via a wire,
The solenoid and the cleaner are connected to a changeover switch so that only one of the solenoid and the cleaner is operated.When the changeover switch is connected to the solenoid side, the solenoid operates. The floor cleaner according to claim 1, wherein the vacuum cleaner is turned off at the same time as the floor suction port is lifted by the wire. 2. The floor suction port is connected to the wire via a shaft. Two springs are connected to the shaft, and the spring is used when the floor suction port is in a raised state. The floor cleaner according to claim 1, wherein the floor suction port is oriented in a standard direction by the action of (1).