JPH0390123A - Electric cleaner - Google Patents

Abstract

PURPOSE:To make an operation part thinner for easy grip and permit easy handling by allowing an operation part to be equipped with a grip part formed into a loop form and by installing inside the grip part a grip lever for operating a power source switch part and a lock lever for locking the grip lever in the case of necessity. CONSTITUTION:In a grip part 23, a switch 24 of an electric motor for revolving a brush and a slide volume 25 for power-controlling a motor-driven blower are installed outside. On the inside of the curved part of the grip part 23, a grip lever 27 for operating a power source switch part 26 of the motor-driven blower is installed, and when the grip lever 27 is grasped, the power source switch part 26 is turned ON, and when the grip lever 27 is released, the power source switch part 26 is turned OFF. Further, a lock lever 28 for locking the grip lever 27 is arranged in front of the grip lever 27. When the knob 64 of the lock lever 28 is pulled, grasping the grip lever 27, the top edge of the lock lever 28 is engaged with the engagement part 59 of the grip lever 27, and a projection 60 shifts from an engaging recessed part 61a to the next engaging recessed part 61b, and is engaged, and the grip lever 27 is locked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in the operating section of a vacuum cleaner.

[Prior Art] Fig. 10 is a side view of a conventional vacuum cleaner, and Fig. 11 is a side sectional view of its operating section. In these figures, 1 is a vacuum cleaner body equipped with a dust collection chamber and an electric blower (both not shown), 2 is a floor brush, 3 is a hose, 4 is an operating section, 5 is a vibrator, and 6 is an operating section. A touch switch is provided in the section 4, 7 is a grip lever, 8 is a spring, 9 is a fixed contact, 10 is a movable contact, and 11 is a switching ring.

As shown in the figure, the touch switch 6 is arranged on the back side of the operating part 4, and when the grip lever 7 of the touch switch 6 is squeezed, the movable contact 10 of the touch switch 6 comes into contact with the fixed contact 9, and the vacuum cleaner The switch of the main body 1 is turned on, and the vacuum cleaner main body 1 starts.

If you hold your hand and let go of the lever 7, the touch switch 6 will turn OFF.
F, and the electric blower of the vacuum cleaner main body 1 stops. In other words, the electric blower will automatically stop when you release your hand.
This touch switch 6 is an effective device in terms of power saving. Further, when the switching ring 11 is rotated, the grip lever 7 remains in the state when it is held by hand, that is, the movable contact 10 remains in contact with the fixed contact 9, allowing continuous operation.

[Problem to be solved by the invention] Since the conventional vacuum cleaner is configured as described above,
While using a vacuum cleaner, the user may interrupt cleaning due to other matters such as a telephone ringing or a visitor, and may leave the vacuum cleaner there and temporarily relocate. At that time, as shown in FIG. 12, when the operating part 4 is placed on the stand 12, etc., the touch switch 6 touches the stand 12 and is turned on, starting the motor of the vacuum cleaner body 1 and causing an unexpected accident. There is a risk of causing

In addition, suction air moves at a considerable speed inside the operating section 4, and static electricity is likely to occur especially during the dry winter season, making it easy for dust to adhere to the operating section 4. Since air passes through it, it is difficult to make it thinner because pressure loss occurs, and this poses problems such as making the operating section 4 difficult to grip.

Furthermore, since the switching ring 11 is provided behind the touch switch 6, there is also the problem that it is difficult to operate with one hand.

The present invention has been made to solve the above-mentioned problems, and it prevents the touch switch from operating even if the operating section is left on a desk or the like when cleaning is interrupted, and also prevents the operating section from operating. The purpose of the present invention is to provide a vacuum cleaner that has a small diameter so that it is easy to hold and is easy to handle.

[Means for Solving the Problems] In order to achieve the above object, the vacuum cleaner according to the present invention has a handle portion in which the operation portion is formed in a loop shape, and an electric blower is installed inside the grip portion. A grip lever for operating the power switch section for ON/OFF control and a lock lever for locking this grip lever when necessary are provided.

[Function] By configuring the operating portion to have a loop-shaped grip portion on the ventilation path pipe portion, the grip portion can be made thin without causing a pressure loss of the suction air. In addition, an electric blower is attached to this grip.
This allows you to consolidate the power switch section for N-OFF control, the slide volume for power control, etc.

Further, since the grip lever for operating the power switch portion is provided inside the grip portion, even if the operating portion is left unattended during cleaning, the grip lever will not come into contact with the desk top or the like.

Furthermore, if the grip lever is locked with the lock lever during cleaning, the power switch section is always in the ON state, and the electric blower does not stop operating even if the hand is loosened from the grip section, making it easier to operate.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a vacuum cleaner that is an embodiment of the present invention;
FIG. 2 is an enlarged side view of the operating section, and FIG. 3 is a sectional view of the operating section.

As shown in the figure, in this embodiment, the operation part 20 is composed of a ventilation passage pipe part 21 through which suction air passes, and a grip part 23 formed in a loop shape with a substantially triangular space 22 provided thereon. It is configured. The grip part 23 is partitioned off from the ventilation passage pipe part 21, and one end of the ventilation passage pipe part 21 is connected to the hose 3, and the other end is connected to the pipe 5 in a detachable manner.

This grip part 23 is provided to make it easier to operate the vacuum cleaner, and in order to move the floor brush 2 smoothly on the floor surface, the grip part 23 is approximately perpendicular to the axis of the connecting pipe 2a (
It is bent at α-90@±15°).

On the outside of the grip part 23, which can be operated with the index finger or thumb, there is a switch 24 for the brush rotation motor built into the floor brush 2, and a slide volume 25 for power control of the electric blower built into the vacuum cleaner body 1.
is provided.

The switch 24 for the motor for rotating the brush may be provided when necessary.

On the other hand, a grip lever 27 for operating the power switch portion 26 of the electric blower is provided on the inside of the curved portion of the grip portion 23, that is, the portion where the abdomens of the four fingers come into contact. That is, when the grip lever 27 is squeezed, the power switch section 26 is turned on.
, it turns OFF when released.

Further, a lock lever 28 for locking the grip lever 27 is arranged in front of the grip lever 27 for convenience.

Furthermore, the internal configuration of this grip portion 23 will be explained with reference to FIGS. 4 and 5.

FIG. 4 is an exploded view of the grip, and FIG. 5 is a sectional view taken along line A--A in FIG. 2.

A switch holder 40 is housed within a case 30 that forms a curved portion of the grip portion 23. The case 30 consists of two parts 31.32 divided into upper and lower parts.
are joined together using the elasticity of the material. The switch holder 40 is composed of a grip lever attachment part 41 and a mouth/clip lever attachment part 42.
Attach the screw hole 43 provided at the base end to the mounting boss 44 on the ventilation passage pipe part 21 with a screw 45, and similarly attach the other lock lever mounting part 42 to the mounting piece 46 on the ventilation passage pipe part 21 with the screw 4.
Attach and secure in step 7. The grip lever mounting portion 41 is attached to the partition walls 3 on both sides provided inside the case 30 as shown in FIG.
It is accommodated between 3a and 33b.

One end of the grip lever 27 is attached by inserting four protrusions into a hole 48 provided on the base end side of the grip lever mounting portion 41.
is held rotatably. The case 30 has a mounting boss 44
There is an opening between the holder and the mounting piece 46, and a curved touch portion 50 is provided on the grip lever 27 so as to close this opening 34.

The touch part 50 protrudes somewhat outward from the opening 34. A spring 51 is installed between the grip lever 27 and the grip lever mounting portion 41 to maintain the protruding state of the touch portion 50.

The grip lever mounting part 41 is configured such that a switch 52 for an electric blower and a switch 53 for a brush motor, which constitute the power switch part 26, are mounted in parallel with a plurality of protrusions 54. A dog 57 for simultaneously operating the actuators 55 and 56 is provided on the grip lever 27. Furthermore, the grip lever 27
An engaging portion 59 into which the tip 58 of the lock lever 28 is inserted is provided at the tip of the lock lever 28 to lock the grip lever 27.

On the other hand, the lock lever mounting portion 42 of the switch holder 40 is formed into a box shape with an open bottom, and the lock lever 28 is slidably housed within the box shape between the mounting piece 46 and the lock lever mounting portion 42 . A protrusion 60 having a semicircular arc cross section is provided at one end of the lock lever 28, and this protrusion 60 forms locking recesses 6'la and 61b formed in the lock lever mounting portion 42.
It is designed to elastically lock in the sliding direction.

Further, the lock lever 28 has a longitudinal support piece 62a.

62b, and a knob 64 protruding from the opening 63 of the mounting piece 46 is provided at the intermediate portion. A stopper 65 for the grip lever 27 is provided in the lock lever mounting portion 42 on the opposite side of the locking recesses 61a and 61b, and the switch 5
2.53 is regulated to protect them. Note that the lead wires 66 and 67 of the switches 52 and 53 are connected to the side wall of the case 30 and the sections M33a and 3 as shown in FIG.
3b.

In addition, the width ρ of the case 30, that is, the grip portion 23, is formed smaller than the width of the ventilation pipe portion 21, so that even when the operating portion 20 is casually left on the floor, the ventilation pipe portion 21 always hits the floor first. , the power switch section 26 is protected.

Next, FIG. 6 is a control circuit diagram of this vacuum cleaner, in which power switches 52 and 53 are electrically connected in series to the slide volume 25 for power control of the electric blower 70. In the figure, 71 is a brush rotation electric motor;
72 is a board for mounting electrical parts for controlling the electric blower 70.

Next, the operation of this embodiment will be explained.

Hose 3 to the vacuum cleaner body 1. Operation unit 20. Connect the pipe 5 and the floor brush 2, and depending on the floor surface, for example, in the case of a carpet, turn the slide volume 25 to the HIGH J side, and turn on the switch 24 of the brush rotation electric motor 71.At this time, turn on the power switch. 52 and 53 are both OFF, so electric blower 70 and brush rotation electric motor 7
Neither one will start.

When the grip part 23 is gripped, the grip lever 2 is moved as shown in FIG.
7 is pressed, and the dog simultaneously pushes actuators 55 and 56, so both power switches 52 and 53 are turned on, and suction from the floor brush 2 is started. At this time,
The rear end of the grip lever 27 hits the stopper 65,
This prevents the actuators 55 and 56 from being pressed more than necessary.

The suction air is a floor brush 2. By 151 Ventilation pipe section 21. Although the suction air passes through the hose 3 in order, since the ventilation path tube section 21 is bent, the suction air passes through the ventilation path tube section 21 at a faster speed. At this time, frictional heat and static electricity are generated between the tube and the inner wall of the tube, but since the grip portion 23 is separated, the user does not feel uncomfortable. Furthermore, since the grip portion 23 is formed approximately at right angles to the axis of the connecting pipe 2a of the floor brush 2,
Force can be easily applied to the floor brush 2 and the floor brush 2 can be operated smoothly.

To interrupt or end cleaning, when you release your hand from the grip part 23, the grip lever 27 is automatically restored by the spring 51, the power switches 52, 53 are both turned OFF, and the electric blower 70. The brush rotation electric motor 71 stops operating.

Furthermore, even if the operating section 20 is left unattended, the grip lever 27
is provided inside the grip portion 23, so it does not touch other objects to operate.

When restarting the operation, the switch 24 and slide volume 25 have already been set, so the operation can be performed simply by grasping the grip portion 23.

Further, if a mechanism for locking the grip lever 27 is used as necessary, the power switches 52 and 53 are always in the ON state, which is convenient. In this case, as shown in FIG.
When pulled, the tip of the lock lever 28 engages with the engaging portion 59 of the grip lever 27, and the protrusion 60 moves from the previous locking recess 61a to the next locking recess 61b and locks therewith, thereby locking the grip lever. Lock 27. As a result, the grip lever 27 is in the same state as when it was gripped, and the power switches 52 and 53 will not be turned off even if the grip lever 27 is released.

After cleaning is completed, turn off the switch 24 and slide volume 25, and the vacuum cleaner will be treated in the same way as a conventional vacuum cleaner.

Next, FIG. 9 is a side view showing another embodiment of the present invention, which is a so-called upright type vacuum cleaner. In the case of this vacuum cleaner, the vacuum cleaner main body 1 and the floor brush 2 are directly connected without using a hose or the like as in the above embodiment, and a handle 8 is provided above.
This is a type that has 0.

In this case as well, the operating section 20 is located at the top of the handle 80.
By providing this operation part 20 in a loop shape with a grip part 23 having a grip lever 27, a lock lever 28, a slide volume 25, etc., and two support parts supporting this, as in the above embodiment, The width of the support portion 29 can be made larger than the grip portion 23, or the grip portion 23 can be formed to be perpendicular to the axis of the connecting pipe 2a of the floor brush 2.
.

The same effects as above are achieved. In this case, although the blower pipe section is not provided, the support section 29 constitutes a part of the operating section 20 in place of the blower pipe section.

[Effects of the Invention] As explained above, according to the present invention, the following many effects can be obtained.

The operation part has a loop-shaped grip, and there is a grip lever on the inside that turns the electric blower on when you grip the grip, and turns it off when you press the grip, so you don't have to turn on the power switch every time.
Not only does it not need to be turned on or off, the grip lever will not operate even if the operating section is left on a desk or the like, making it safe.

Since the grip part can be formed separately from the air pipe part, static electricity, etc. that tend to occur in the air pipe part is not transmitted, so there is no discomfort.

The grip part can be made smaller in diameter, making it easier to operate, and even if the operating part is left unattended, the air pipe and support part will hit the floor first, reducing shock and protecting electrical components. obtain.

By locking the grip lever with the lock lever during cleaning, the power switch section will always be in the ON state.
The electric blower does not stop operating even if you loosen your grip, making it easier to operate.

Electrical parts such as switches can be consolidated in the grip, making it more compact.

[Brief explanation of drawings]

FIG. 1 is a side view of a vacuum cleaner according to an embodiment of the present invention;
Fig. 2 is an enlarged side view of the operating section, Fig. 3 is a sectional view of Fig. 2, Fig. 4 is an exploded view of the grip, and Fig. 5 is an A--
6 is a control circuit diagram of the vacuum cleaner, FIG. 7 is a sectional view showing the operation when the grip lever is squeezed, FIG. 8 is a sectional view showing the lock lever in operation, FIG. 9 is a side view of another embodiment of the present invention, FIG. 10 is a side view of a conventional vacuum cleaner, FIG. 11 is a cross-sectional view of its operating section, and FIG.
The figure is an explanatory diagram showing the disadvantages of the conventional operating section. 1... Sweeping machine main body 20... Operation section 23... Grip section 25... Slide volume 26... Power switch section 27... Grip lever 70... Electric blower. The same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In the operation section provided with a power switch section for controlling ON/OFF of an electric blower of a vacuum cleaner, the operation section has a grip section formed in a loop shape, and the power switch section is operated inside the grip section. A vacuum cleaner characterized by comprising a grip lever that locks the grip lever and a lock lever that locks the grip lever when necessary.