JP2691649B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly to an operating portion thereof.

[0002]

2. Description of the Related Art In recent years, electric vacuum cleaners have been
The grip 3 at the end of the pipe 2 following the floor brush 1 shown in FIG.
Many are equipped with a power switch such as a slide switch. This power switch turns on and off the motor that drives the blower of the cleaner body and the motor that drives the rotary brush of the floor brush, and turns on only the motor that drives the blower. In FIG. 3, reference numeral 4 indicates a hose, and 5 indicates a cleaner body.

Conventionally, in addition to the above-mentioned power switch, another power switch for turning on / off the power current supplied to the motor via the power switch is provided, and the other power switch is provided in the grip portion. It is also known to operate with a grip lever (see JP-A-3-90121 and JP-A-3-90122). In this case, when the grip lever is gripped, the power supply current is supplied to the motor, and when the grip lever is released, the power supply current cannot be supplied. Therefore, when the phone rings during cleaning, or when cleaning is interrupted by a visitor, the motor can be easily stopped, which not only saves power but also prevents accidents with the rotating brush. It is also effective in terms of safety.
Further, this grip lever is provided with a lock mechanism, and by locking the grip lever, it is convenient for continuous operation.

[0004]

By the way, if the grip lever is locked, there is a problem in terms of safety against accidents caused by the rotating brush, and the lock lever (operator) of this lock mechanism is formed in a loop shape. Since it is arranged inside the grip, it is difficult to check whether or not it is in the locked state, and there is a problem that it takes time to release the lock. The present invention is to solve the above problems,
Even if the grip lever is locked, leaving the grip on the floor automatically unlocks it, turning off the power supply current and easily checking whether it is locked or not. The purpose of the present invention is to provide an electric vacuum cleaner that does not require any effort to release the vacuum cleaner.

[0005]

To achieve the above object of the Invention The, present invention relates to a vacuum cleaner, an operation unit power switch for controlling a main blower and the rotary brush their is provided, _ the operating unit has a grip portion formed in a loop shape, provided with a grip lever and the lock mechanism for operating the power switch on the grip portion, the loops of the grip <br/> Ri unit In two directions along the direction of penetration
The lock release lever that issued collision formed from該握Ri part, said grip
If the grip is left on the floor, the weight of the grip will
The lock release lever is pressed, and this lever
Go to direction, it is characterized in that the locking of the grip lever is as Ru is released by previous SL locking mechanism.

[0006]

In the vacuum cleaner having the above-mentioned structure, when the grip lever is locked for continuous operation, the lock release lever projects to the side surface of the grip portion, so it is easy to confirm whether or not the lock state is established. As well as being able to do so, the lock can be released simply by pressing the protruding lock release lever,
The grip lever can be easily unlocked. Further, since the lock release lever projects from the side surface of the grip portion, the lock release lever is pushed and the lock of the grip lever is released by leaving the grip portion on the floor.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1A is a cross-sectional view of the grip portion, FIG. 1B is an external view of the grip portion, and FIG. 2 is a cross-sectional plan view showing a main portion of the grip portion. In the figure, reference numeral 21 is a slide switch that acts as a power switch, and this slide switch controls the motor for driving the blower of the cleaner body and the motor for driving the rotary brush of the floor brush to turn on and off, and also drives the blower. It is possible to turn on only the motor that operates. Reference numeral 22 is a grip portion, and a grip lever 23 is arranged inside thereof. Reference numeral 24 denotes a power switch, which turns on / off the power supply current to the motor flowing through the slide switch 21. The switch 24 is turned on only when the grip lever 23 is gripped and the lever is turned in the direction of the arrow 25, and turned off when the lever is released.

When the lock lever 26 is slid in the direction of arrow 27 while the grip lever 23 is gripped, the right end 29 of the lock lever 26 is wedge-shaped between the left end 28 of the grip lever 23 and the grip portion 22. Interrupt, grip lever 2
3 is locked in the same condition as when it was gripped. 30
Is a lock release lever, which is interlocked with the lock lever 26, and is configured to project to the side surface of the grip portion 23 as shown in FIG. 2 when the lock lever is set. Specifically, the lock lever 26 is moved to the arrow 2
When moving in the direction of 7, that is, sliding to the locked state, the pin 31 arranged on the upper surface of the lock lever 26 moves from the position indicated by 32 to the position of 31, and the lock release lever 30
The arm 33 provided inside the arm is retracted. Therefore, the lock release lever 30 is set in an opened state with the support center 34 as an axis. This state is held by the protrusion 35 on the left side of the lock lever 26.

FIG. 2 shows a locked state, that is, a state in which the lock release lever 30 is set.
Is shown to be wider than the width of the pipe 36.
Since the position of the lock release lever 30 is on the front side surface of the grip portion 22, it is easy to enter the field of view even during cleaning, and the locked state can be sufficiently confirmed. In addition, by painting the tip of the lock release lever 30 with a color different from that of the exterior,
Confirmation of the locked state becomes easier. The lock release lever 30 is independent on the left and right as shown in FIG.
By pressing either one, the locked state can be easily released and the power can be turned off. In an emergency, by leaving the grip 22 on the floor, the lock release lever 30 is pushed by its own weight and the locked state is released.

Reference numeral 37 in FIG. 1 indicates the axis of rotation of the grip lever 23, and 38 is a spring for urging the grip lever 23 in the direction opposite to the arrow 25. Further, reference numeral 39 in FIG. 3 is a spring for urging the lock release lever 30 in the retracted direction.

[0011]

Since the present invention is constructed as described above, the power supply to the motor can be turned off in the same manner as the conventional one when the cleaning is temporarily stopped, so that the power can be saved. , The inclusion of foreign matter with a rotating brush,
It is possible to ensure safety for children's injuries. Furthermore, even during continuous use in the locked state, the lock is automatically released by leaving the grip on the floor, and the power supply to the motor is turned off, ensuring sufficient safety even in an emergency. In addition to the above, it is possible to easily confirm whether or not the lock state is established, and it is possible to obtain an effect that the lock is released without trouble.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view (a) in the vicinity of an operating portion of an electric vacuum cleaner showing an embodiment of the present invention, and a front view (b) showing an appearance in the vicinity of the operating portion.

FIG. 2 is a cross-sectional plan view of the vicinity of the operation portion of the electric vacuum cleaner showing the embodiment of the present invention.

FIG. 3 is an external view of a conventional one.

[Explanation of symbols]

 22 Grip 23 Grip Lever 24 Power Switch 26 Lock Lever 30 Lock Release Lever 36 Pipe

Claims (1)

(57) [Claims] 1. A vacuum cleaner, comprising an operation unit power switch that controls the body blower and rotary brush of that is provided, _ the operation portion has a grip portion formed in a loop shape, provided with the grip lever and the lock mechanism to operate the power switch to the grip, 2 along the direction through the loops of the grip
A lock release lever protruding from the grip in the direction ,
When the grip is left on the floor, the weight of the grip will
The lock release lever is pressed by the
Moves in the pressing direction, the electric vacuum cleaner, characterized in that the locking of the gripping levers by prior Symbol locking mechanism is as Ru is released.