JPH0131890B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floor suction device for a vacuum cleaner having a lint catcher.

Conventional technology Conventionally, this type of floor suction device
-As shown in Publication No. 11187, a lint catcher is installed in front of the dust suction port of the lower suction device that forms the bottom of the floor suction device, and a rotating roller is installed at the outermost front of the lower suction device. In some cases, lint traps are attached to the front and back of the suction port, or to the left and right sides, as shown in Japanese Utility Model Application Publication No. 181655/1983.

Problems to be Solved by the Invention However, in the former floor suction tool, the vacuum pressure generated in the suction passage by the operation of the vacuum cleaner body is distributed such that it is greatest in the center of the suction passage and decreases toward both ends. As a result, the suction force to the floor surface is the greatest at the dust suction port of the floor suction device, and the central part curves downward using the rotating rollers attached to both ends as a support point, thereby trapping lint. The result was that the body hit the cleaning surface too hard. The lint trap is constructed by planting a large number of short fibers on a base material and tilting the fibers toward the dust suction port.It traps lint, etc. by moving in the direction of the tilt on the cleaning surface. ,
By moving in the opposite direction, the captured lint and the like is released, and immediately after being released, it is sucked into the cleaner body from the dust suction port. Therefore, as mentioned above, if the contact force with the cleaning surface is too strong, the stiffness of the fibers will stretch, resulting in an extremely low lint capture rate and also causing damage to the cleaning surface, such as the carpet. Ta.

In addition, in the latter suction port attachment, the back surface to which the lint trap is attached is formed flat, so when in use, the air flowing into the suction port does not flow smoothly, and the trapped lint can be cleaned smoothly. Dust is not sucked into the main body of the machine, and as in the former case, the way the lint catcher hits the cleaning surface changes depending on how much force is applied to operate the suction port attachment, making it impossible to fully demonstrate its trapping performance. There was a problem.

The present invention solves the above-mentioned problems and provides a highly usable floor suction tool for vacuum cleaners that reliably captures and sucks lint, etc. attached to the cleaning surface, and does not damage the cleaning surface. This is what we provide.

Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problems is to provide a bottom plate of a main body of a suction device having a suction port and a suction groove extending left and right from the suction port, and It is equipped with front and rear rotating rollers, which are arranged two each at the front and rear, to set a gap between the cleaning surface and the bottom plate, and front and rear lint traps attached to the bottom plate before and after the suction port. The front rotating roller is arranged close to both sides of the front lint trap at an interval approximately equal to the width of the suction port, and a flat surface is arranged close to both sides of the rear lint trap. Two protrusions having a section are provided to protrude from the bottom plate.

Effect This effect is achieved by the two front rotating rollers and two protrusions placed between the lint traps at the front and rear of the suction passage. This is to maintain the gap between the lint trap and the lint trap at a gap with the highest trapping efficiency.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, 1 is a suction device main body having a suction passage 2, 3 is a joint connected to the rear of the suction device main body 1 so as to communicate with the suction passage 2 and can be raised and lowered;
A connecting pipe 4 is rotatably attached to the joint 3 via a retaining ring 5, and communicates with the suction side of the vacuum cleaner via an extension pipe, hose, etc. Reference numeral 6 has a suction port 7 facing the suction passage 2, and a sled-shaped bottom plate in which a suction groove 8 is recessed in the left-right direction starting from the suction port 7; The installed lint trap is shown, and is constructed by planting a large number of short fibers on a substrate, and each of the fibers is tilted in the direction of the suction port 7.
That is, the fibers of the front thread waste catcher 9 are set to fall backwards, and the fibers of the rear thread waste catcher 10 are set to fall forward.

Reference numeral 11 denotes a front rotating roller disposed in front of the suction port 7 at an interval approximately equal to the width of the suction port 7 and close to both sides of the thread waste catcher 9;
two rear rotating rollers arranged behind the
have a flat surface with two projections protruding from the bottom plate 6 adjacent to both sides of the rear lint catcher 10, and the height of the projection is lower than that of the rear rotating roller 12. Reference numeral 14 denotes a brush provided on the rear side in parallel with the suction groove 8, and has the function of scraping up dust when cleaning the board surface to be cleaned. 15 is a bumper that prevents damage to furniture, etc. when using the floor suction device, and is installed almost all around.

Further, when the gap between the surface in front of the suction groove of the bottom plate 6 and the cleaning surface is A, the gap between the rear surface and the cleaning surface is B, and the gap between the protrusion 13 and the cleaning surface is C, A<C<B. It is formed to be.

Next, the operation in this configuration will be explained.

Now, when cleaning a rug, carpet, etc., as the suction device main body 1 moves forward, the previously captured lint comes off from the front lint catcher 9 due to friction with the cleaning surface and reaches the suction opening. 7, and the rear lint catcher 10 catches the lint on the surface to be cleaned. Next, when the suction tool main body 1 is moved backward, the front lint catcher 9 catches the lint on the cleaning surface, while the rear lint catcher 10 releases the caught lint by friction with the cleaning surface. It separates and is sucked into the suction port 7. At this time, a vacuum pressure that gradually decreases from the suction port 7 to both ends of the suction groove 8 is applied, and a force is applied to the bottom plate 6 to attract the surface to be cleaned. In addition, since the rear part is supported by the protrusion 13 on both sides of the front and rear lint catchers 9 and 10, the contact of the front and rear lint catchers 9 and 10 with the cleaning surface does not change, so that the most lint is collected. It is possible to maintain a state with good catching performance, that is, a state in which the fiber tips of the lint traps 9 and 10 are in contact with the cleaning surface with the most appropriate contact force, and it is possible to reliably capture and remove lint by releasing it. be.

In addition, since the fiber tips of the lint traps 9 and 10 do not touch the surface to be cleaned too much, they do not damage the carpet or carpet, and can be used with confidence.

By the way, in the above embodiment, the protrusions 13 are formed close to both sides of the rear lint catcher 10, but it is conceivable that the function of the protrusions 13 may also be used by the rear rotating roller 12. However, since a diagonally downward operating force F is applied to the suction device main body 1 via the connecting pipe 4, etc., if the position of the rear rotating roller 12 is the same as the protrusion 13 in the embodiment, the rear rotating roller 12 will be used as a fulcrum. The front end of the suction tool body 1 lifts up and becomes unusable. For this reason, the rear rotating roller must be positioned near or behind the extension direction of the operating force F. On the other hand, the rear lint trap 10 needs to be installed as close as possible to the suction port 7 in order to improve the suction of the caught lint into the suction port 7, and based on the above conditions, the rear rotating roller 12 is also used. This is not possible, and the significance of the protrusion 13 can be understood from this point.

In addition, since the gap with the cleaning surface is set as A < C < B, it can be used on a carpet with long fibers, and the flat part on the front side of the suction groove 8 where the gap is A is in close contact with the carpet. Even if the catching performance of the front lint catcher 9 deteriorates, a gap is always created between the protrusion 13 and the cleaning surface, resulting in stable lint dust suction from the rear of the suction groove 8.

Effects of the Invention As explained above, according to the present invention, lint traps are attached before and after the suction port on the bottom plate of the floor suction tool body, and rotating rollers and protrusions are arranged on both sides of each lint trap. By setting the lint trap, a gap is maintained between the lint trap and the cleaning surface to which lint has adhered, which allows the lint trap to obtain the highest trapping performance, and therefore the best lint removal performance can be obtained. At the same time, it is possible to obtain good usability in that it can be used without damaging the cleaning surface such as a carpet.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a floor suction device showing an embodiment of the present invention, and FIG. 2 is a sectional view. 1... Suction tool main body, 6... Bottom plate, 7... Suction port, 8... Suction groove, 9... Front lint trap, 10
...Rear lint trap, 11... Front rotating roller, 12... Rear rotating roller, 13... Protrusion.

Claims (1)

[Scope of Claims] 1. A bottom plate of a suction tool main body having a suction port and a suction groove extending left and right from the suction port, and two
The front rotating roller includes front and rear rotating rollers that are individually arranged to set a gap between the cleaning surface and the bottom plate, and front and rear lint traps provided on the bottom plate before and after the suction port, and a front rotating roller. The rollers are disposed close to both sides of the front lint catcher at an interval approximately equal to the width of the suction port, and further have two flat protrusions adjacent to both sides of the rear lint catcher. A vacuum cleaner floor suction device that protrudes from the bottom plate. 2. Claim 1 sets A<C<B, where A is the gap between the cleaning surface and the front surface of the suction groove of the bottom plate, B is the gap with the rear surface, and C is the gap with the protrusion. The floor suction device for the vacuum cleaner described.