JPS6018139A - Floor sucking tool of electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a floor suction tool for a vacuum cleaner.

Conventional Structure and Problems Traditionally, when cleaning a board-covered floor, etc., the floor suction tool of a vacuum cleaner has been installed in front of and behind the bottom suction passage of the main body of the floor suction tool to prevent damage to the floor surface. A brush is provided at the front of the suction passage, or a rotary roller is provided at the front of the suction passage, and a brush is provided at the rear to maintain a distance between the bottom surface of the floor suction device and the floor surface.

However, when using the brush back and forth, if the floor suction device is pressed strongly against the floor, the brush will fall over and the distance between the bottom of the floor suction device and the floor will become smaller, and the effect of preventing damage to the floor will be lost. At the same time, there was a drawback that the brush rubbed strongly against the floor surface, causing it to wear out quickly. The same applies to a floor suction tool having a rotating roller at the front of the suction tool passage and a brush at the rear.

In order to eliminate this drawback, some floor suction tools are equipped with rotating rollers at the front and rear of the suction passage, but since this floor suction tool only has one front rotating roller in the center,
It is unstable and the gap between the bottom of the floor suction device and the floor is not constant.
It was not effective enough.

OBJECTS OF THE INVENTION The present invention provides a floor suction tool for a vacuum cleaner that eliminates the above-mentioned conventional drawbacks and has good cleaning efficiency.

Structure of the Invention The floor suction tool for a vacuum cleaner of the present invention is provided with a suction passage extending substantially linearly on the carpet edge of the main body of the floor suction tool, and a carpet and a floor are provided in front and behind the suction passage. A suction system in which two rotating rollers are arranged to maintain a predetermined distance between the suction passage and the suction passage, and the interval between the two front rotation rollers located on the front side of the suction passage is connected to the center of the suction passage. The intended purpose was achieved by setting the width approximately equal to the width of the mouth.

Description of examples Examples thereof will be described below based on the accompanying drawings.

In Figures 1 to 3, reference numeral 1 denotes a floor suction tool body, and a joint 2 is attached to the rear upper part of the main body so that it can be raised and lowered freely, and a rotary pipe 3 is connected to the joint 2 through a retaining ring 4 for rotation. It can be installed freely. 6 is a connecting wall for making the intake passage smooth; 6 is a carpet having a suction lower in the center, and suction passages 8 extending left and right from the left and right sides of this suction lower. 9 is a brush and the suction passage 8
9 is provided behind the suction passage 8 in parallel with the suction passage 8, and is fixed to the carpet sled 6. Reference numeral 10 denotes two front rotating rollers, the spacing between which is approximately equal to the width of the suction lower. Reference numeral 11 denotes two rear rotating rollers which, together with the front rotating roller 10, maintain a constant distance between the lower surface of the carpet sled 6 and the floor surface. A switching lever 13.14 is used to change the amount of protrusion of the front rotating roller 1o from the carpet sled 6. Reference numerals 13 and 14 are lint catchers installed at the front and rear of the suction passage 8, each of which collects a large number of fibers tilted toward the suction passage 8. Equipped with

In the above configuration, since the carpet sled 6 in the floor suction device main body 1 is provided with two rotating rollers 10 and 11 in the front and rear with the suction passage 8 between them, there is no space between the floor surface and the carpet sled 6. A gap is reliably formed and variations in the gap are also eliminated.

In particular, since the two front rotating rollers 1o have a spacing that is approximately equal to the width of the suction lower where the suction force is strongest, the central part of the carpet sled 6 does not deform downward due to the suction force. It's something that doesn't exist.

Moreover, since the carpet sled 6 is not deformed, the lint traps 13 and 14 appropriately contact the carpet and catch lint. That is, the lint catcher 13.14
This prevents damage to carpets, etc. caused by

By the way, the front lint catcher 13 catches the lint adhering to the cleaning surface when the floor suction device main body 1 is moved backward, and when it moves forward, the above lint is removed from the lint catcher 13 and the suction lower be sucked into. On the other hand, the rear lint trap 14 releases the lint caught during forward movement and causes it to be sucked into the suction lower when retreating. The thread waste trap may be provided on either the front or rear of the suction lower, and in this case, the thread waste capture rate will be half of that in both cases.

Next, the front rotary roller 1Q changes the amount of protrusion from the carpet sled 6 depending on the situation of the cleaning surface, so that the gap with the cleaning surface can be adjusted. Fig. 4 shows a specific example of the switching mechanism. An example is shown.

That is, the two rotating rollers 10 are each supported by a roller holder 16 via a shaft 15. This roller holder 16 integrally includes a common piece 17 that connects the two, and protruding pieces 18 that protrude outward from each side. 17 and a protruding piece 18 are each supported.

Further, the roller holder 16, the common piece 17, and the projecting piece 18 are integrally molded from an elastic material such as synthetic resin.

20 is the roller holder 1 via the previous switching lever 12.
The same roller holder 16 is used as an actuator that slides on the top of 6.
It has two cam ridges 21 corresponding to .

Now, when the actuator 20 is slid to the left in the figure by operating the switching lever 12, the cam ridge 21 moves the roller holder 16 down by that height, and the carpet sled 6 of the rotating roller 10
Let the amount of protrusion from the dog be the dog. Moreover, if the actuator 20 is slid to the right from this point and the pressing force by the cam ridge 21 is released,
The roller holder 16 is moved upward by the elastic restoring force of the common piece 17 and the protruding piece 18, and the amount of protrusion of the rotating roller 10 is set to be small.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, it is possible to reliably form a uniform gap between the carpet sled and the cleaning surface, thereby stabilizing suction performance, improving efficiency, and improving cleaning efficiency. This can prevent damage to the surface.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a floor suction tool showing an embodiment of the present invention, Fig. 2 is a sectional view, Fig. 3 is a bottom view, and Fig. 4 is a sectional view showing the protrusion amount switching mechanism of the rotating roller. be. 1... Floor suction tool body, 6... Carpet sled 7
...Suction port, 8 ...Suction passage, 10...
Front rotating roller, 11... Rear rotating roller,
13゜14... Thread waste trap. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] A nearly linear (extending) suction passage is provided on the carpet sled of the main body of the floor suction device, and two rotating rollers are installed at the front and back of this suction passage to maintain a predetermined distance between the carpet sled and the floor surface. A floor suction tool for a vacuum cleaner, in which the interval between two front rotating rollers located on the front side of a suction passage is set to be approximately equal to the width of a suction port connected to the center of the suction passage.