JPS6090526A - Leaner - 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 a vacuum cleaner with a suction power display function for use in general households.

Conventional configuration and its problems A partial filter is provided on the suction side, and a display that responds to the suction pressure is provided between the filter and the fan motor to indicate when it is time to dispose of dust and also to dispose of dust. When the filter becomes full, it sends cooling air to the fan motor that has overheated due to overload.

However, in this configuration, since only the display is provided, it is not sufficient to inform the user that there is a lot of dirt and dust.

For this reason, if you continue cleaning as is, the fan motor will be overloaded for a long time, and eventually the fan motor will burn out or the vacuum cleaner body made of plastic etc.
There were many problems, including deformation caused by the heat of the fan motor.

Purpose of the Invention In view of the above conventional problems, the present invention provides a vacuum cleaner that prevents burnout of the fan motor, thermal deformation of the vacuum cleaner body, etc. by reliably informing the user when it is time to throw away the dust. .

Structure of the Invention: A pipe whose one end is open to the suction side of the fan motor and whose other end is open to the outside air and whose at least a portion is transparent, a spring provided inside the pipe, and a spring biased by the spring. The structure includes a pointer that closes the pipe and at least one rib provided in a spiral shape on the side of the pointer, and when the suction force reaches a predetermined value, the pointer moves against the spring. When the ribs are hit by wind from the outside air and the pointer rotates, the user is notified of the accumulation of dirt and dust.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1-T.

In Figures 1 and 2, 1 is a fan motor 2 for suction.
It has a built-in RS vacuum cleaner body that can be divided into upper and lower parts (
(hereinafter referred to as the main body), 3 is a removable dust collection box held by the main body 1, which has a built-in filter device 4 and a dust collection bag 5 for discarding collected dust, and is installed on the suction side of the fan motor 2. It is being Further, a dust collection bag outlet is provided on the front surface of the dust collection box 3, and a dust collection bag support plate 6 is rotatably supported at the lower end of this opening. The front cover has a 7Vi hose insertion port 8 and a handle 9, and is equipped with a front cover contact plate 11 having a lid rubber 10 attached to the outer periphery to tighten the dust collection bag outlet. It is rotatably supported on the lower front end, opens and closes the dust collection bag outlet, and is locked with a buckle 12. Reference numeral 13 denotes a partition wall that is integrally provided approximately in the center of the main body 1, and that separates the fan motor 2 and the dust collection box 3 and has a ventilation hole 14.
and are in airtight contact with each other via the backing 16.

Furthermore, 17 is a front wheel, 18 is a rear wheel, 19 is a rest provided protruding to the rear of the main body 1, and 20 is a display window for displaying the amount of collected dust.

Next, the vicinity of the display window 2° will be explained in detail with reference to FIGS. 3, 4, and 5.

Reference numeral 21 indicates a communication pipe provided at the upper part of the main body 1 and extends to the suction side of the fan motor 2. Reference numeral 22 indicates a transparent pipe whose one end is joined to the communication pipe 21 and whose other end is open to the outside air through a valve seat 23. , 24 are springs provided in the pipe 22, which bias the pointer 25 toward the outside air side, and in the normal state close the valve seat 23 of the pipe 22, as shown in FIG. Also, the guideline 26
A spiral rib 26 is provided on the side surface.

Next, we will explain the operation of the above configuration.0 When the amount of dust increases in the filter device 4 and the dust collector 6 during cleaning and the suction pressure of the fan motor 2 increases to a certain value, the pointer 26 will move toward the fan as shown in FIG. The valve seat 23 is opened when the suction pressure of the motor 2 is moved to a point where the atmospheric pressure and the force relationship between the valve 24°4 are balanced. By opening the valve seat 23, outside air flows in, reaches the fan motor 2, cools the fan motor 2, and prevents the temperature from rising due to overload.

At the same time, the outside air flowing in hits the rib 26 provided on the pointer 25 and rotates the pointer 25, thereby surely informing the user that dust has accumulated. In addition, when the pointer 26 rotates, the wind noise of the rib 26 is also generated, so that the user can be informed more reliably.
By providing a spring holder seat 27 between the spring holder and the spring holder 27, and by providing a protrusion 28 that makes point contact with the pointer 26 integrally with this spring holder 27, the friction between the pointer 25 and the pointer 24 is reduced, and the pointer 26
becomes easier to rotate.

Further, by applying some color 29 between the lips 26 of the pointer 26, it becomes possible to reliably inform the user that the pointer 25 is rotating.

Further, in this embodiment, the pipe 22 is entirely transparent, but it goes without saying that only the top and front may be transparent.

Effects of the Invention As is clear from the description of the above embodiments, according to the vacuum cleaner of the present invention, when dust accumulates on the filter, by rotating the pointer, it is possible to more reliably confirm that dust has accumulated on the filter. This will notify the user and prevent burnout of the fan motor and heat deformation of the main unit due to overload.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a vacuum cleaner which is an embodiment of the present invention;
3 and 4 are sectional views of the same essential parts, FIG. 6 is an exploded perspective view of the same essential parts, and FIG. 6 is an essential part of a vacuum cleaner according to another embodiment of the present invention. An exploded perspective view, and FIG. 7 is a side sectional view of the same essential part. 2...Fan motor, 22...Pipe, 24...Spring, 25...Pointer, 2
6...Rib. Name of agent: Patent attorney Toshio Nakao and 1 other person Akira 3
Figure 4

Claims (1)

[Claims] At least a partially transparent pipe with one end open to the suction side of the fan motor and the other end open to the outside air, a spring provided inside the pipe, and a pointer biased by the spring to close the pipe. and at least one rib spirally provided on the side surface of the pointer.