JPS6158629A - Indicator 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 Field of Industrial Application The present invention relates to an indicator 2 for displaying the level of dust accumulation in a dust collection box of a vacuum cleaner.

Structure of the conventional example and its problems As shown in Figure 1, the conventional indicator has a pointer 1 that displays the amount of dust accumulated in the dust collection box, and a pointer 1 that slides to open a ventilation passage for outside air. It is formed from a hollow pipe 2 that forms a hollow pipe 2 and a spring 3 that biases the pointer 1 in a direction that blocks outside air.One end has a communication pipe 4 that communicates outside air to the suction side of the electric blower, and the other end has a communication tube 4 that urges the pointer 1 in a direction that blocks outside air. Since the lid 6 was provided to tighten the lid 6, the number of parts was large and the number of man-hours required for assembly was also large. In addition, the size of the hollow pipe 2 is limited by the shape and size of the main body, so there is a limit to increasing the area of the outside air ventilation passage formed between the hollow pipe 2 and the pointer 1. was there. Therefore, in today's situation where there is a tendency to increase the input power of electric blowers in order to improve the suction performance, the temperature rise of electric blowers is becoming higher, so it is necessary to use outside air to cool the electric blowers. There is a shortage of ventilation passage area. Furthermore, when the pointer 1 slides, the fine dust contained in the flowing outside air is removed from the hollow pipe 3.
Adhesion to the inner surface of the bar 2 may cause the hollow pipe 2 to become cloudy, making it difficult to see the pointer 1, or adversely affecting the sliding movement of the pointer 1, resulting in uncertain operation.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides an indicator that improves the ease of assembly and the cooling effect of an electric blower, and prevents malfunctions.

Structure of the Invention The vacuum cleaner indicator of the present invention has a communication hole that communicates the atmosphere with an electric blower, which is formed across both sides of a divided part of a main body that is divided into a plurality of parts, and a valve body that opens and closes the communication hole. is rotatably supported by a boss protruding from one of the main bodies to be divided at the split part of the main body or a neck near the split part of the main body, and a rib is provided protruding from the other part of the main body at a neck near the valve body to form a valve. By regulating the positional displacement of the body, it is possible to improve the ease of assembly and the cooling effect of the electric blower, and to prevent malfunctions.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In Figures 2 to 4, reference numeral 6 is a main body that has a built-in electric blower 7 for suction and can be divided into left and right parts.The upper part has an indicator 8 that displays the amount of dust collected, a handle 9, and a handle 9 to turn on the electric blower 7. , and an OFF switch 1o, and a rear wheel 11 for movement is provided at the bottom. 12 is a dust collection box for accumulating dust, with an intake port 13 at the front and a dust collection box 1 at the top.
2 to the main body 6 in a detachable manner, a front wheel 15 for movement is provided at the bottom, and a packing 16 is attached to the outer periphery of the rear opening to tighten the opening and the main body 6. A filter device 17 is installed.

Here, the indicator 8 is disposed between the electric blower 7 and the filter device 17, and has a communication hole 18 that allows the electric blower 7 to communicate with the atmosphere, and a communication hole 18 that opens and closes the communication hole 18 and connects the dust collection box 1.
Valve body 1 shows the amount of dust accumulated in 2.
9, and a spring 2o that urges the valve body 19 in a direction to close the communication hole 18. A transparent window 21 is provided so that the movement of the valve body 19 can be seen from the outside at all times, and is provided to prevent air and dust from directly entering from the outside. The main body 6 is divided into a main body left 22 and a main body cloth 23, and the communication hole 18 is provided with ribs 24 protruding from the main body left 22 and the main body cloth 23, respectively, so that it can be separated on both sides of the divided portion of the main body 6. It is formed. Further, the valve body 19 is rotatably supported in the vicinity of the divided portion of the main body 6 by a boss 25 protruding from the left side 22 of the main body to the divided portion of the main body 6, and the main body cloth 23
By the rib 26 protruding from the dividing part of the main body 6,
Misalignment is regulated. At this time, the valve body 19 and the rib 2
4 and 26, a gap is provided between the valve body 19 and the valve element 19 in order to prevent frictional resistance from occurring during operation. Further, an inflow hole 27 is provided at the rear of the handle 9 to take in air from the outside, and an electric blower 7 is provided at the front of the main body 6 to draw in air from the outside.
An intake hole 28 is provided that leads to the air.

To explain the operation in the above configuration, if there is less dust accumulated in the dust collection box 12, that is, if the filter 6 page 7 device 17 has less pore size, the negative pressure in front of the electric blower 7 will be lower than the pressure applied to the spring 2o. Since the force is larger, the valve body 19 closes the communication hole 18 as shown by the solid line in FIG. However, as the filter device 17 becomes increasingly clogged, the negative pressure in front of the electric blower 7 increases, and beyond a certain point, it gradually overcomes the force of the spring 2o and the third
The valve body 19 rotates as shown by the dashed line in the figure, and the atmosphere passes through the inflow hole 27, the communication hole 18, and the intake hole 28 to the electric blower 7.
As a result, the electric blower 7 is cooled and the temperature can be prevented from rising abnormally, and the amount of dust accumulated in the dust collection box 12 can be determined by the degree of opening of the valve body 19.

At this time, by providing the communication hole 18 so as to span both sides of the divided portion of the main body 6, it is possible to easily increase the air ventilation passage area without being restricted by the shape and size of the main body 6 as in conventional indicators. Since it can be made larger, it has become possible to greatly improve the cooling effect of the electric blower 7. In particular, the electric blower 7 is installed to improve suction performance.

In today's situation, where the power of the electric blower 7 is increasing and the temperature of the electric blower 7 is increasing, an increase in the area of the air ventilation passage is preventing fires and burns due to abnormal heating of the electric blower 7. To prevent such things and ensure the safety of users,
This became an extremely effective means and made it easy to develop a vacuum cleaner equipped with a high-input electric blower 7.

Furthermore, the indicator 8 of the present invention has a communication hole 18 formed by a rib 24 protruding from the main body 6, and a communication hole 18 formed by a rib 24 protruding from the main body 6.
A valve body 19 that opens and closes the valve body 8, and a spring 20 that biases the valve body 19.
Since it can be constructed with only one piece, the number of parts and assembly man-hours can be significantly reduced compared to conventional indicators.

By protruding the boss 25 that rotatably supports the valve body 19 from the left side 22 of the main body up to the divided part of the main body 6, and supporting the valve body 19 at the divided part of the main body 6, the valve body 19 can be rotated. Assembling efficiency can be improved, and the prying force that acts on the fulcrum of the valve body 19 and has an adverse effect on operability can be reduced, and variations in operation and malfunction of the valve body 19 can be prevented. In addition, a rib 26 is provided to protrude from the main body cloth 23 to the divided portion of the main body 6, and the valve body 1
By preventing the positional shift of the valve body 19, the valve body 19 is prevented from coming into contact with the ribs, causing frictional resistance and slowing down the operability.
1 can be done.

Effects of the Invention As is clear from the above-mentioned embodiments, the vacuum cleaner indicator of the present invention has a communication hole that communicates the atmosphere with the electric blower by means of ribs protruding from the main body so as to span both sides of the main body division. By forming the vacuum cleaner with a high-input electric blower, it is possible to easily increase the air ventilation passage area, greatly improving the cooling effect of the electric blower, and ensuring the safety of vacuum cleaners equipped with high-input electric blowers. In addition to supporting the valve body near the body division part with a boss that protrudes up to the body division part, the ease of assembling the valve body to the body is improved and the prying force generated at the fulcrum of the valve body is reduced. In addition to preventing the valve body from malfunctioning, the ribs protrude close to the main body division part to prevent the valve body from shifting, reducing the frictional resistance when the valve body operates and improving the operability of the valve body. In addition, by constructing only the communication hole, valve body, and spring, the number of parts and assembly man-hours can be reduced by 1] compared to conventional indicators, and the cost can also be reduced. It has industrial value.

[Brief explanation of the drawing]

Figure 1 is an exploded view of a conventional vacuum cleaner indicator.
FIG. 2 is a sectional view of a vacuum cleaner showing an embodiment of the present invention;
3 and 4 are cross-sectional views showing details of a portion of the indicator. 6... Body, 7... Electric blower, 8.
...Indicator, 18...Communication hole,
19... Valve body, 20... Spring, 26...
...Boss, 26...Rib. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] It has a built-in electric blower for suction and a main body that can be divided into multiple parts, including a communication hole that communicates the atmosphere with the electric blower, a valve body that opens and closes the communication hole and displays the amount of collected dust, and a body that closes the communication hole. The communication hole is formed by a rib protruding from the main body so as to straddle both sides of the main body division part, and the valve body is connected to the main body from one side of the divided main body. A vacuum cleaner that is rotatably supported by a boss that protrudes to the split part or the vicinity thereof, and that prevents displacement of the valve body by a rib that protrudes from the other side of the main body to the split part of the main body or the vicinity thereof. indicator.