JPS6018211Y2 - Vacuum cleaner main switch - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a vacuum cleaner that can utilize exhaust air, and particularly to a main body switch thereof.

Conventional technology Conventionally, in order to use the exhaust air from a vacuum cleaner, you either close a hand switch installed at the end of the hose that is electrically connected to the vacuum cleaner, or you close the next circuit directly on the vacuum cleaner's side. I had to.

Problems that the invention aims to solve However, the former method described above has poor operability due to the long distance between the hand switch and the main body, and the latter method, which opens and closes the primary circuit, directly applies commercial voltage, making it difficult for the operator to operate. In addition to presenting the risk of electric shock, in order to prevent the occurrence of fires due to short circuits and sparks, it is necessary to use fairly expensive materials and have a complicated structure, which has the disadvantage of increasing manufacturing costs.

The present invention solves the above-mentioned conventional drawbacks and provides an inexpensive main body switch with good operability and safety.

Means for Solving the Problems In order to solve these conventional problems, the present invention
The two body terminals that make up both ends of the secondary circuit of the relay installed on the vacuum cleaner body side are attached to the dust collection box side, contact the body terminals, and connect to the hand switch on the hose side. A movable contact plate is provided on the vacuum cleaner body to short-circuit the two body terminals, and a switch knob is fixed to the movable contact plate.

Operation According to the above configuration, operation can be safely controlled on the main body side by using the secondary circuit of the relay leading to the hand switch, and since only the movable contact plate and its knob are required as the switch. , the configuration can be greatly simplified.

Example An embodiment thereof will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a main body that houses an electric blower 2, and the electric blower 2 is supported by a front elastic body 3 and a rear elastic body 4.

A dust collection box 6 equipped with a dust collection device 5 is attached to the front part of the main body 1 with a buckle 7.
They are removably connected via the

A front cover 9 having an air intake hole 8 for sucking in dust is fixed to the front part of the dust collecting box 6.

10 is a relay that starts and stops the electric blower 2 using a hand switch 12 provided at the tip of the hose 11.

The relay 10 converts the primary power source from the cord plug 13 into a secondary power source.

At the upper part of the main body side where the main body 1 and the dust collection box 6 are connected,
A main body switch 14 is provided.

The main body switch 14 has a built-in body terminal 15 and is connected to the relay 10 via a lead wire 16.

A plug-in terminal 17 fixed to the dust collection box 6 is provided at a position facing the body terminal 15, and when the main body 1 and the dust collection box 6 are attached and detached, this plug-in terminal 17 and the body are connected. One terminal 15 is electrically disconnected.

A connection terminal 18 is provided at the intake hole β at the front of the dust collection box 6, and is connected to the insertion terminal 17 via a lead wire 19.

To connect the end of the hose 11 to the hand switch 12, insert the connecting pipe 20 into the intake hole 8, and the connecting pin 21 protruding from the connecting pipe 20 and the connecting terminal 18 are connected. The hand switch 12 is energized.

The main body switch 14 is composed of a switch cover 22 and a switch mounting plate 23, and a movable contact plate 24 is slidably attached to the switch cover 22 and integrally with a switch knob 25.

The body terminal 15 is fixed to the switch mounting plate 23.

The switch cover 22 and the switch mounting plate 23 have hooks formed on both sides of the switch mounting plate 23 in the fitting holes 26 by utilizing the elasticity of the hanging walls 22a that protrude downward from both sides of the switch cover 22. By fitting 23a, they are combined.

After being fitted and connected, when the switch knob 25 is slid,
Movable contact plate 24 that is locked to the switch knob 25
slides together and connects to the body terminal 15.

The movable contact plate 24 short-circuits the two body terminals 15, thereby making it possible to start and stop the electric blower 2 without operating the hand switch 12.

The main body switch 14 is attached to the main body 1 by connecting the flange portion 22b integrally protruding from the switch cover 22 and the notch portion 28.27 provided in the rib 1a protruding from the wall surface of the main body 1. By joining both the left and right bodies together, they are clamped and fixed.

In the above configuration, when the main body 1 and the dust collection box 6 are connected by the buckle 7, the insertion terminal 17 of the dust collection box 6 and the body terminal 15 are connected, and operation using the hand switch 12 is enabled.

When using the vacuum cleaner as a blower, the hose is connected to the exhaust port, so the hand switch 12 cannot be used. However, when the main body switch 14 is operated, the two body terminals 15 are connected to the movable contact plate. The electric blower can be started and stopped by being short-circuited or separated by 24.

Effects of the Invention As is clear from the above explanation, according to the present invention, like the hand switch, the main body switch can start and stop the electric blower by opening and closing the secondary circuit, and the primary circuit can be started and stopped by opening and closing the secondary circuit. In addition to avoiding the danger and high cost of notches, in particular, in this invention, the body switch that comes in contact with the plug-in terminal on the dust collection box side can be used as the terminal of the main body switch without providing a separate body switch. Since the main body switch is constructed by providing a movable contact plate that short-circuits this, it has the effect of greatly reducing manufacturing costs and the number of parts, and its practical value is extremely large.

[Brief explanation of the drawing]

Figure 1 is a cutaway side view of the main parts of a vacuum cleaner adopting the present invention, Figure 2 is a side view of the same vacuum cleaner and hose, Figure 3 is an enlarged sectional view of the main parts of the switch section, and Figure 4 is the same. FIG. 5 is an exploded perspective view of the switch section, FIG. 5 is a top view of the switch section, and FIG. 6 is a sectional view taken along the line A--A in FIG. 5. 1... Body, 6... Dust collection box, 11...
Bent hose, 12... Hand switch, 15.
Body terminal, 17... Plug-in terminal, 24...
...Movable contact plate, 25...Switch knob.

Claims (1)

[Scope of utility model registration request] The two body terminals that make up both ends of the secondary circuit of the relay installed on the vacuum cleaner body side are attached to the dust collection box side, contact the body terminals, and connect to the hand switch on the hose side. A vacuum cleaner main body is provided with a movable contact plate that short-circuits the two body terminals with a plug-in terminal, and a switch knob is fixed to the movable contact plate. switch.