JPS63311921A - Floor suction jig 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 Application Field> The present invention relates to a floor suction tool for a vacuum cleaner, and particularly to a floor suction tool provided with a rotating brush body driven by a motor.

<Conventional technology> Conventionally, in order to effectively clean carpets, etc., a special floor suction device has been developed that uses a rotating brush to scrape up the scum from the carpet surface and uses the suction power of the vacuum cleaner itself to suck up the scum. Publication No. 1983-215340, Japanese Patent Publication No. 60-215340
This method has been proposed in, for example, Japanese Patent No. 1-87519.

<Problems to be Solved by the Invention> The rotating brush installed in the above-mentioned floor suction device has a structure in which it is driven by a small built-in motor. Even when the suction tool is lifted up, the rotating brush is rotated by the motor, which causes the rotating brush to rotate at high speed, increasing noise and wasting power, especially when the motor is powered by batteries. had the problem of unnecessarily shortening battery life.

The present invention was made in order to solve the above problems.While cleaning a carpet etc. by rotating a rotating brush,
To provide a floor suction tool for a vacuum cleaner that can prevent noise generation and save power consumption by automatically stopping a rotating brush when the suction tool is removed from the floor.

<Means for Solving the Problems> For this purpose, the floor suction tool of the present invention is a floor suction tool equipped with a rotating brush body that is rotationally driven by a motor and scrubs the floor surface by its rotation. , the contact piece has a contact piece that can come into contact with the floor surface through the floor surface of the suction tool main body, and the contact piece is in a first position where the contact piece is retracted upward from the bottom surface when the contact piece comes into contact with the floor surface; a movable contact member that is movable between a second position in which the contact piece protrudes below the bottom surface when not in contact with the floor surface; and a movable contact member that is movable to two different positions in the vicinity of the movable contact member. is,
When the movable contact member is placed in one of the positions, the movable contact member in the first position only comes into contact with the movable contact member to operate the switch to start the motor, and when the movable contact member is placed in the other position, the movable contact member in either the first or second position is activated. The movable switch does not come into contact with the movable contact member at the position, and the operating member switches the movable switch to the one and the other positions.

<Function> In the floor suction tool configured as described above, when the movable switch is brought into contact with the movable contact member by operating the operating member and the suction tool body is placed on the floor, the contact piece of the movable contact member The movable contact member moves inward from the bottom surface by being pushed by the floor surface to the first position. At this time, the movable switch is turned on by the movable contact member, the motor is activated, and the rotary brush body is rotationally driven. On the other hand, when the floor suction device is lifted upward, the movable contact member moves to the second position, thereby turning off the movable switch and stopping the motor or rotating brush.

<Example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a plan view of a floor suction tool of a vacuum cleaner, FIG. 2 shows a bottom view of the same, and FIG. 3 shows a plan view of the suction tool main body 1 with the top cover removed.

An elongated suction chamber 2 is formed in the suction device main body 1 along the longitudinal direction, and a box-shaped connection case 3 is connected to the center of the suction chamber 2, and a connection vibe 4 is connected to the rear of the connection case 3. The connecting vibrator 4 is connected to the suction side of a vacuum cleaner main body (not shown) via a connecting hose.

At the rear of the suction device main body 1, wheels 5 for traveling on the floor are rotatably supported. At the bottom of the suction chamber 2, an opening 6 as shown in FIG. The rotating brush body 7 is constructed by attaching a single blade made of synthetic resin (having tooth-shaped corrugations on both longitudinal edges) around a central axis so as to be twisted approximately 180 degrees. In order to drive the 0-rotation brush body, a motor 9 is installed in the suction tool main body 1, and a rotation shaft of the motor 9 and a pulley fixed to an end of the rotating brush body are connected by a timing belt 10. A dry battery 11 is used as a power source for the motor 9, and this dry battery 11 is connected to the suction tool main body 1 on the opposite side of the motor 9 across the connection case 3.
placed within.

Inside the suction tool body 1, the type of floor surface to be cleaned, such as tatami,
Operation member 1 with a set of levers that can be switched depending on the carpet etc.
2 is provided, and the upper end of the operating member 12 protrudes upward from an opening provided in the upper cover 18. Also, this operating member 1
2 has a support shaft 12a provided at the lower end pivoted on a part of the main body 1, and is arranged so as to be rotatable back and forth within a certain angular range.

The switching position of the operating member 12 is, for example, two positions, "fold" and "carpet". When the operating member 12 is pushed forward as shown in FIG. 6, it is in the "fold" position, and as shown in FIG. 5, it is in the "fold" position. It is configured to switch to the "carpet" position when pulled. A mounting portion 12b is integrally provided on the operating member 12 and extends substantially horizontally from its support shaft 12a, and a movable switch (for example, a micro switch) 1 is mounted on the mounting portion 12b.
3 is fixed downward. Therefore, when the operating member 12 is pushed to the "fold" position, the movable switch 13 rises slightly as shown in FIG.
When pulled to this position, the movable switch 13 returns to a substantially horizontal position as shown in FIG. The two positions in which the operating member 12 moves are determined by fitting a protrusion provided inside the upper cover 18 with a recess provided in the flange of the operating member 12.

Further, below the movable switch 13, a movable contact member 14 is provided with a shaft portion 14a provided at its end portion pivotally supported by a part of the main body 1, so as to be rotatable within a certain angular range.

A contact piece 14 is provided at the lower part of the movable contact member 14 near the shaft.
When the movable contact member 14 is positioned horizontally under its own weight, the contact piece 14b protrudes downward from the opening provided at the bottom of the suction tool main body 1. Therefore, when the suction tool main body 1 is placed on the floor, the contact piece 14b protruding downward from the bottom hits the floor, for example, a carpet or tatami mat, and the movable contact member 14 receives a force that pushes it upward. As shown in FIGS. 5 and 6, it rotates about the shaft portion 14a as a fulcrum so as to be lifted upward.

By the way, when the suction tool main body 1 is placed on the floor, the movable contact member 14 contacts the movable switch 13 at its tip.
It is provided to turn on the switch by pushing the operating part of the switch. Therefore, when the suction device main body 1 is lifted up as shown in FIG. 4, the movable contact member 14 is located almost horizontally at the bottom of the main body, and its tip is separated from the movable switch 13. When the suction tool main body 1 is placed on the floor, the fifth
As shown in the figure, the movable contact member 14 rotates so as to be lifted upward, and its tip presses the actuating portion of the movable switch 13 from below to turn on the movable switch 13. Note that when the movable switch 13 is turned on by the movable contact member 14, the operating member 12 is turned on as shown in FIG.
It is necessary that the operating member 1 be in the "carpet" position.
2 is in the "folded" position as shown in FIG.

In this manner, the movable switch 13 fixed to the mounting portion 12b of the operating member 12 is connected between the motor 9 and the dry cell battery 11, and turns the motor 9 on and off.

The floor suction device configured in this manner is connected to the suction side of the vacuum cleaner main body (not shown) via a connecting vibrator 4 and a connecting hose, and the operating member 12 is switched depending on the type of floor surface, such as tatami or carpet. operated and used.

In other words, when cleaning a carpeted floor, operating member 1
2 to the "carpet" position, place the suction tool main body 1 on the carpet (Fig. 5), and suck the dust through the opening 6 at the bottom. At this time, the movable contact member 14 rotates upward about the shaft portion 14a as the contact piece 14b protruding downward from the bottom hits the carpet and is lifted up, and the tip thereof becomes the operating portion of the movable switch 13. Press to turn on the switch. When the movable switch 13 is turned on, current from the dry cell battery 11 is applied to the motor 9, and the motor 9 is activated and the rotating brush body 7 is driven to rotate at high speed via the timing belt 10.

The carpet surface is rubbed by the rotation of the rotating brush body 7, dust is scraped out and sucked, and the carpet is cleaned well.

During such cleaning, when the suction tool is lifted to clean the area to be cleaned, as shown in FIG. When the movable switch 13 returns to the position, the on operation is canceled and the movable switch 13 is turned off. As a result, the rotating brush body 7 of the motor 91 is stopped, so that the power consumption of the dry battery 11 can be saved and the generation of noise due to unnecessary rotation can be prevented.

On the other hand, when cleaning the tatami floor, the operating member 12 is pushed forward to the "tatami" position. Then, as shown in FIG. 6, the movable switch 13 rotates and rises together with the operating member 12 about the support shaft 12a, and the movable contact member 14
The switch is lifted to a position where it cannot be touched even if the switch is tilted upward. Therefore, in this state, the suction tool is placed on the fold, and the movable contact member 14 as shown in FIG.
Even if it rotates upward due to lifting of the contact piece 14b,
The movable switch 13 is not turned on, the motor 9, that is, the rotating brush body 7 does not rotate, and the folding surface is cleaned only by normal suction.

<Effects of the Invention> As explained above, according to the floor suction tool of the present invention,
A movable switch for switching the motor for driving the rotating brush body is disposed in the suction tool body so that its position can be changed by an operating member, and a movable contact member for turning the movable switch on and off is movably provided, When the suction tool body is placed on the floor, the contact piece of the movable contact member hits the floor surface, moves the movable contact member to turn on the movable switch, and when the suction tool body is removed from the floor surface, the movable contact member touches the floor surface. The movable switch was configured to be turned off at a distance from the movable switch. Therefore, when cleaning a carpet while rotating the rotary brush body, if the suction tool is lifted off the floor to move from one area to another, the movable contact member separates from the movable switch and turns it off. Since the motor for the rotating brush body is stopped, power is not wasted and noise generation due to the rotating brush body rotating at high speed under low load can be prevented.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of the floor suction device, Fig. 2 is a bottom view of the same, Fig. 3 is a plan view with the top cover removed, and Fig. 4 is a plan view of the suction device for the floor. 5 and 6 are the same sectional views taken in a state of use. DESCRIPTION OF SYMBOLS 1... Suction tool main body, 7... Rotating brush body, 9... Motor, 12... Operating member, 13... Movable switch, 14... Movable contact member, 14a... Contact piece . Patent application Brother Industries, Ltd. Figure 1 Figure 2 3111!

Claims (1)

[Claims] In a floor suction tool equipped with a rotating brush body that is rotationally driven by a motor and scrubs the floor surface through its rotation, the suction tool can come into contact with the floor surface through the floor surface of the suction tool body. a first position in which the contact piece is retracted upward from the bottom surface when the contact piece contacts the floor surface; and a first position in which the contact piece is retracted upward from the bottom surface when the contact piece contacts the floor surface; a movable contact member movable between a second position protruding downward; and a movable contact member movably mounted in two different positions near the movable contact member, and when placed in one of the two positions, A movable member that starts the motor by contacting a movable contact member in only one position and performing a switch operation, and does not contact the movable contact member in either the first or second position when placed in the other position. A floor suction tool for a vacuum cleaner, comprising: a switch; and an operating member for switching and arranging the movable switch between the one and the other positions.