JPS6156621A - Floor nozzle 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 nozzle for a vacuum cleaner.

Structure of the conventional example and its problems The conventional floor nozzle of this type, as shown in Figs. I was adjusting the amount of dust collection belt. That is, 1 is a floor nozzle main body, which is constructed by combining an upper main body member 2 and a lower main body member 3. 4 is a ventilation groove formed in the surface of the lower body member 3 corresponding to the surface to be cleaned;
5 is a suction port communicating with the ventilation groove 4, and the suction air flows from the suction port 5 through a vibro, an extension pipe, and a hose (not shown) into the vacuum cleaner. A notch/groove 8 provided to speed up the suction airflow to suck in dust is a dust collection zone provided approximately parallel to the ventilation groove 4, and is formed of brush bristles, pieces of rubber, or the like. Dust collection zone 8
The structure is such that when the carpet petal 9 is pressed, the length of the carpet coming out from the lower body member 3 becomes smoother, and when the floor and folding petal 10 is pushed, the length of the carpet coming out from the lower body member 3 becomes wider.

The current problem is that the floor nozzle is difficult to operate on carpeted surfaces or does not move. This is due to an increase in suction power due to an increase in the suction power of the vacuum cleaner itself.As carpets have become more popular, many different types of carpets are being used, especially those with long pile lengths or high pile density. 4 was blocked by the pile, the airflow was blocked, and the pressure near the suction port 5 suddenly increased, causing it to stick to the carpet surface, making it difficult to use due to poor image marking on the carpet surface.

Purpose of the Invention The present invention solves these conventional problems.
It has a good operating feel and is intended to improve usability.

Structure of the Invention The present invention is applicable to cleaning floors, folding surfaces, and carpet surfaces by rotating the lever back and forth by operating a switching pedal to move the dust collection band in and out of the lower body member.
In a configuration that adjusts the amount of air that comes out, the adjustment valve that had closed the adjustment hole formed in the suction port moves, opening the adjustment hole fully and allowing outside air to enter, reducing the pressure in the ventilation groove and inlet. The aim is to improve the operating feel by weakening the suction force.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In FIGS. 1 to 4, reference numeral 11 denotes a floor nozzle body, which is constructed by combining an upper body member 12 and a lower body member 13. Reference numeral 14 denotes a ventilation groove formed in the surface of the lower body member 13 corresponding to the surface to be cleaned, and is provided so as to suck dust from the inside of the floor nozzle body 11.

15 is a suction port communicating with the ventilation groove 14; 16 is formed to be smaller than the cross-sectional area of the ventilation groove 14 in order to speed up the intake air Rk in order to improve dust collection efficiency on both sides of the floor nozzle body 110; This is a cutout groove. 1 is the ventilation groove 1
This is a dust collecting zone provided approximately parallel to 4, and is made of brush bristles, pieces of rubber, etc. Reference numeral 18 denotes an adjustment hole formed inside the suction port 15, which is used to fully introduce outside air when cleaning the carpet surface. 19 is a carpet petanope 20 which is switched when cleaning the carpet surface; 20 is a floor and folding peta which is switched when cleaning the carpet surface; 21 is a lever; when the carpet petal 19 is pushed in, the lever 21 is the part of the upper body member 12 that is switched when cleaning the carpet surface; It is configured to rotate back and forth as guided by the entire outer circumference of a fulcrum rib 22 formed at the center. That is, the arm portion 2 integrally formed with the carpet bevel 19
3 presses the rotation hole 24 of the lever 21 and rotates it forward. At the same time, part of the lever on the opposite side rotates backwards,
The floor and folding petals 20 protrude above the upper body member 12. Coupled with this operation, the shielding plate 25 integrally formed on the lever 21 moves away from the adjustment hole 18, leaving the adjustment hole 18 in an open state. Furthermore, as a simultaneous operation, the dust collection belt 17 is pulled into the inside of the lower body member 13.

Next, when you press the floor and folding petal 201, the lever 21
is rotated in the opposite direction, the carpet bevel 19 protrudes from the upper main body member 12, and the blocking plate 25 comes into contact with the adjustment hole 18, thereby closing the adjustment hole 18. Further, the dust collection band 17 is configured to protrude more thickly than the lower body member 13 by means of a push-out base 26 formed on the lever 21-.

Next, to explain the operation, when cleaning the floor or folding surface, the adjustment hole 18 in the suction port 15 is blocked by the shielding plate 25, and the dust collection band 17 is in a state protruding from the lower body member 13. . Therefore, the floor nozzle main body 11 is
The suction airflow enters from the front surface of the lower body member 13 or from the cutout groove 16, flows smoothly through the ventilation groove 14, and reaches the suction port 15, resulting in extreme adhesion to the cleaning surface. This provides a smooth operating feel.

On the other hand, when cleaning the carpet surface, the dust collection belt 17 enters the inside of the lower body member 13, and the dust collection belt 17 and the carpet
Furthermore, the adjustment hole 18 formed in the suction port 15 is opened, and outside air is introduced from the lower part of the floor and folding plate 2o and flows through the adjustment hole 18. Now, even if the ventilation groove 14 is blocked by a carpet pile and the pressure near the suction port 15 increases, the adjustment hole 1
The pressure decreases due to the inflow of air of 8.5 degrees, and the suction force to the carpet surface decreases, making it possible to obtain a smooth operating feel.

In this way, the adjustment hole 18 formed in the suction port 15 is opened by operating the carpet petal 19, and outside air is allowed to flow into the suction port 15 through the adjustment hole 18 when cleaning the muddy surface. By reducing the pressure near the suction port 15, the suction force against the carpet surface can be weakened, and the operation feeling of the floor nozzle body 11 can be made smoother.

Effects of the Invention As described above, according to the present invention, an adjustment hole is formed inside the suction port, and this adjustment hole can be opened and closed by a slow closing plate.
By operating the carpet petal, the delay closing plate moves away from the adjustment hole and opens, allowing outside air to flow into the suction port through the adjustment hole when cleaning the carpet surface, reducing the pressure near the suction port. As a result, the suction force with the carpet surface is weakened, and the operation force of the floor nozzle body is light and smooth, which improves cleaning work efficiency and helps elderly people with weak strength. This provides a practical floor nozzle that can be easily cleaned by children and has a wide range of uses.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a floor nozzle body of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a perspective view showing the bottom of the floor nozzle body, and FIG. 3 is a lower body of the floor nozzle body. FIG. 4 is a sectional view of the switching petal part of the same-floor nozzle; FIG. 5 is a perspective view of the conventional floor nozzle and main body; FIG. 6 is a perspective view of the conventional floor nozzle. It is a perspective view showing the bottom of a nozzle main body. 15...Suction port, 18...Adjustment hole. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 4 (21

Claims (1)

[Claims] A vacuum cleaner floor nozzle that has a switching structure that corresponds to carpet surfaces, floors, and folding surfaces, and has an adjustment hole for outside air inflow that acts only on the carpet surface inside the suction port.