JPH05220064A - Upright type vacuum cleaner - Google Patents

Abstract

PURPOSE:To achieve longer life with the prevention of a deviation in the operation angle of a switch by closing the switch connected in series to a motor for driving a rotary brush in a suction port for floors with a magnet coil within the main body of an electric cleaner to rotate a rotary brush when the suction port for floors is at a specified angle with the body part of the cleaner. CONSTITUTION:A suction port part 52 for floors and the body part 51 of an electric cleaner are turned about a shaft 50 and mutual angel is varied. The body part 51 of the cleaner is provided with a motor for a blower which is driven with a switch of a main controller and a magnet coil 1. A lead switch 2 which is opened or closed by a magnetic force of the magnet coil is provided in the suction port part 52 in series with the motor for rotating a rotary brush. When the body part 51 of the cleaner is set upright, the magnet coil 1 fails to turn ON the lead switch 2. But when the cleaner body part is tilted by a specified angle alpha the magnet coil 1 turns ON the lead switch 2 to rotate the motor of the suction brush. This prevents deviation in the operation angle thereby achieving a longer life.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type vacuum cleaner having a floor suction tool provided with a rotating brush.

[0002]

2. Description of the Related Art In recent years, as vacuum cleaners have diversified to be cleaned such as rugs, a vacuum cleaner has a rotary brush at the floor suction port, which is rotated by a motor. Is coming.

In an upright type vacuum cleaner,
Since the main body of the vacuum cleaner is used in a state in which it falls down to some extent, there is one that can rotate the rotating brush of the floor suction port only when it detects that it is falling, preventing the floor surface and the brush from wearing, It is effective in saving power.

A conventional upright type vacuum cleaner will be described below with reference to the drawings. The upright type vacuum cleaner shown in FIG. 4 has a structure in which the cleaner main body 51 rotates with respect to the floor suction port 52 with a line indicated by 50 as an axis.

Therefore, the user grasps the handle 53 and tilts the cleaner body 51 to some extent to use it.

When not in use, the cleaner body 51 is upright. A cam is provided on the rotary shaft 50 to detect these states, and the switch 56 is opened and closed by the cam 56 (see FIG. 5).

In the circuit diagram of FIG. 6, the switch 57 is connected in series with the AC power source 64 together with the rotary brush motor 58, the motor protection device 59, and the bidirectional thyristor 60.

When the cleaner body 51 is tilted to some extent (the switch 57 is closed), the rotary brush motor 58 is operated by the user by the bidirectional thyristor 60. Control device 6
It is controlled by the signal from 1.

[0009]

However, in the above-mentioned conventional technique, since the power source of the rotary brush motor is directly opened / closed by the switch 57, the cam 56 and the switch 5 are connected.
Since 7 contacts and slides, it may wear during a long period of use, making it impossible to open and close the switch.

The present invention solves the above problems,
Improve the durability and operability by closing the switch in the floor suction port and rotating the motor for the rotating brush arranged in series with the magnet generated by energizing the magnet coil inside the cleaner body. The purpose is to

[0011]

In order to achieve the above object, the upright type electric vacuum cleaner of the present invention has the following means.

A magnetically closed switch, which is connected in series with the rotary brush drive motor in the floor suction port, is provided with a magnet coil in the cleaner body so that the cleaner body and the floor suction port form a predetermined angle. It has a control device for rotating the rotating brush at any time.

[0013]

In this structure, the rotary brush is rotated when a predetermined angle is formed between the cleaner body and the suction port in a non-contact manner, so that the detection accuracy does not deteriorate due to wear or the like even when used for a long time. , Durability is improved.

[0014]

EXAMPLE In this example, a reed switch is used as a switch that is closed in a magnetic field.

An embodiment of the first invention will be described with reference to the drawings. The same reference numerals are given to those having the same functions as those of the conventional technique, and the description thereof will be omitted.

In FIG. 1, the cleaner main body 51 and the floor suction port 52 rotate about 50 as an axis.

When the cleaner body 51 is upright,
The magnet coil 1 and the reed switch 2 are arranged at positions separated from each other as shown in FIG.

Further, the magnet coil 1 is provided in the cleaner body 51, the reed switch 2 is provided in the floor suction port 52, and when the cleaner body 51 is turned around the axis 50 and tilted down, the magnet coil 1 is provided. The reed switch 2 is arranged at a close position (FIG. 1 (b)).

With this configuration, when the cleaner main body 51 falls down on a normal floor, the reed switch 2 detects the magnetism generated by the magnet coil 1 and closes the switch. The reed switch 2 is the magnet coil 1
When the cleaner main body 51 is stood up to a predetermined angle at which the magnetism from the can not be detected, the switch opens.

When the operation switch is operated, the magnet coil 1 is energized and a magnetic field is generated.

At this time, if the cleaner body 51 falls,
Reed switch 2 with magnetic field generated by magnet coil 1
Is closed and the rotary brush drive motor 58 is energized,
A rotating brush (not shown) rotates.

Therefore, the rotary brush is stopped when the operation of the operation switch 54 is stopped to energize the magnet coil 1 or the cleaner main body 51 is erected upright.

[0023]

As is apparent from the above description of the embodiments, the present invention uses a magnet coil and a switch that closes when magnetism is detected, and opens and closes the switch in a non-contact manner to provide a floor suction port. Since the motor for driving the rotary brush is rotated, it is possible to provide an upright electric vacuum cleaner with good operability in which the operating angle of the switch does not change due to wear due to long-term use.

[Brief description of drawings]

FIG. 1 is an external view of an upright electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is an electric circuit diagram of the embodiment.

FIG. 3 is an external view of a conventional upright electric vacuum cleaner.

FIG. 4 is an electric circuit diagram of a conventional upright type electric vacuum cleaner.

[Explanation of symbols]

 62 fan motor 63 bidirectional thyristor for fan motor

Claims (1)

[Claims] 1. A vacuum cleaner main body and a floor suction port rotatably connected to the vacuum cleaner main unit, wherein a rotary brush and a motor for driving the rotary brush are provided in the floor suction port. And a switch that closes in a magnetic field generated by the magnet coil are electrically connected in series, a current is applied to the magnet coil, and the cleaner body and the floor suction opening form a predetermined angle. An upright type electric vacuum cleaner in which a magnet coil is arranged inside the cleaner body at a position where a rotary brush of a floor suction port rotates.