JPS6037728B2 - Vacuum cleaner floor suction device - Google Patents

Description

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

In conventional floor suction devices, in order to improve deep suction performance, there are those equipped with a shield made of rubber, etc.
In order to improve lint collection, some products had a raised fabric attached to the entire underside of the odor absorber.

Problems to be Solved by the Invention However, none of these methods can be said to be satisfactory, as they are expensive and cannot simultaneously satisfy deep suction performance and lint building performance.

The present invention comprehensively eliminates the above-mentioned conventional drawbacks, and is capable of satisfying both deep suction performance and lint collection performance at the same time.

Means for Solving the Problems In order to solve these conventional drawbacks, the present invention provides a dust suction port, a dust suction groove formed in a substantially straight line with a lotus on both sides of the dust suction port, and a dust suction groove formed on both sides of the dust suction port. On the curved lower surface with the groove as the apex, in front of the dust suction groove, a stepped portion substantially parallel to the dust suction groove, and in front of the dust suction port, located on the boundary line of the stepped portion and fixed to the lower surface. At the same time, it has a brush plate whose bristles are set so that their tips are in contact with the surface to be cleaned, and the stepped portion is formed so that the dust suction groove side is farther from the floor surface, and the raised bristles of the brush plate are set toward the dust suction port side. It is tilted.

Operation In this configuration, the suction airflow passing through the gap between the surface to be cleaned and the suction tool forms a low pressure region when flowing through the stepped portion, increasing the degree of suction vacuum.

Also, since the airflow blocked by the brush plate flows to both sides,
The degree of suction vacuum can be further increased. Therefore, even dust in deep areas is reliably sucked. Of course, the brush board also ensures that lint is caught. Embodiments Below, embodiments will be described with reference to the accompanying drawings.

In the figure, a pipe 1 is connected to the main body of the vacuum cleaner, and rotatably connected to an upper suction device 2 by a ring 3.

Reference numeral 4 denotes a backing plate, which is attached to the open pipe end of the upper suction tool 2 to form a dust suction port 5, so that air flows smoothly from the dust suction port 5 of the bracket to the pipe 1.

6 is a lower suction device, which is conveyed to the above-mentioned dust suction port 5 almost in the center;
A dust suction groove 7 is formed extending from the dust suction port 5 to the left and right ends of the suction tool.

The front and rear surfaces of this dust suction groove 7 are curved back and forth, with the apex approximately at the center of the dust suction port 5. On the front surface of the dust suction port 5, a brush plate 8 on which a cloth with raised bristles lying in a certain direction is attached is attached parallel to the dust suction groove 7, and on the left and right sides of this brush plate 8,
A stepped portion 9 of about -mm is provided in the longitudinal direction of the brush plate 8, and its rear side, that is, the dust suction groove side, is formed to be farther from the floor surface than the front surface. 1 River dust suction groove 7
The lower suction tool 6 can be opened by stepping on the brushes 12 and 13, which are located at the rear of the brush and protrude and retract toward the floor surface.
It is arranged so that it appears from part 14. Reference numeral 15 denotes a roller, which creates a gap of approximately one willow length between the lowest end of the stepped portion 9 and the floor surface.

Reference numeral 16 denotes a bumper sandwiched between the upper suction tool 2 and the lower suction tool 6 and wrapped around them.

Now, step on one side of the bevel and brush 10 as shown in Figure 7.
When used on a hard flat surface such as a floor or a folding surface, the lower surface of the lower suction tool 6 has a roller 15 and a brush IQ.
In this state, the roller 15 has a gap of about 1 mm between the lower end of the step 9 provided on the lower surface and the surface to be cleaned. It will be done so that there will be no damage. In addition, the dust suction groove 7 extending left and right from the dust suction port 5 becomes shallower toward the end, so that the air sucked from the dust suction port 5 is difficult to leak, and as a result, the cleaning surface sandwiched between the stepped portion 9 and the brush 10 The degree of vacuum will be increased. However, there is basically a gap in front of the dust suction port 5 and dust suction groove 7, so there is a limit to performance improvement.
The brush plate 8 to which a cloth with raised bristles is affixed in a certain direction is attached along the curved surface of the lower surface of the lower suction tool 6, and the tips of the bristles are in contact with the cleaning surface, so that the dust suction opening is 5
The inhaled odor from the front is blocked by the length of the brush plate 8 only in front. As a result, the degree of vacuum on the lower surface of the lower suction tool 6 between the step part 9 and the brush 10 is further increased, the wind speed of the air passing through the step part 9 becomes faster, a low pressure area is formed in this part, and the vacuum is further increased. The level has been increased. To explain this in the case where dust is sucked by filling a deep hole with sand, if there is a deep hole below the stepped portion 9, the air flowing from the outside of the stepped portion 9 to the dust suction port 5 and the dust suction groove 7 is quite large. It will pass with high wind speed. During this time, the air flows along the step 9, so if the deep hole is filled with sand, it will eddy at the tip of the step, creating a so-called low-pressure area and the sand will be blown up, riding on the high wind speed and sucking dust into the dust inlet 5. will be done. When the other bevel is further stepped on, the brush 9 sinks below the bottom surface of the lower suction tool 6, as shown in Figure 2, and the carpet surface can be cleaned. The direction is such that when the suction tool is moved backwards, lint, etc. will be caught in. Also, the stepped part 9 is drawn in so that the dust suction port 5 and dust suction groove 7 side are away from the floor surface, so the suction tool can be moved in the opposite direction. When pulled, the step is about the size of a willow tree, so it does not create resistance, and it is possible to pick up threads and cotton waste.

At this time, the threads and cotton waste caught on the brush plate 8 and step part 9 are removed.
By moving the suction tool forward, it comes off and is sucked into the dust suction port 5. Effects of the Invention As described above, according to the present invention, the deep suction performance can be significantly improved by the stepped portion and the brush plate provided in front of the dust suction port, and of course, the lint collection performance can also be improved. It is possible to realize these functions with a simple structure, and its industrial value is extremely large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a floor suction device according to an embodiment of the present invention, Fig. 2 is a sectional view thereof, and Fig. 3 is a sectional view taken along line AA in Fig. 1.
Fig. 4 is a sectional view taken along line B-B in Fig. 1, Fig. 5 is a sectional view taken along C-C in Fig. 1, Fig. 6 is a bottom view of the same, and Fig. 7 shows the grounding condition on the floor such as a tatami mat. FIG. 5... Dust suction port, 7... Suction/blocking groove, 8...
・...Brush plate, 9...Step part. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A dust suction port, a dust suction groove formed in a substantially straight line on both sides of the dust suction port, and a curved lower surface with the dust suction groove portion as the apex, approximately parallel to the dust suction groove on the front side of the dust suction groove. and a brush plate that is located in front of the dust suction port, located on the boundary line of the step, fixed to the lower surface, and set so that the tips of the raised bristles are in contact with the surface to be cleaned. , the floor suction tool for a vacuum cleaner, in which the stepped portion is formed so that the dust suction groove is farther from the floor surface, and the raised brush plate is inclined toward the dust suction port side.