JP2506489Y2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an electric vacuum cleaner, and more particularly to improvement of its operating part.

[Prior Art] FIG. 10 is a side view of a conventional electric vacuum cleaner, and FIG. 11 is a side sectional view of an operating portion thereof. In these figures, 1 is a vacuum cleaner body having a dust collection chamber and an electric blower (both not shown) inside, 2 is a floor brush, 3 is a hose, 4 is an operation unit, 5 is a pipe, and 6 is an operation. A touch switch provided on the part 4, a grip lever 7, a spring 8, a fixed contact 9, a movable contact 10, and a switching ring 11 are provided.

As shown in the figure, the touch switch 6 is disposed on the back side of the operation unit 4, and when the grip lever 7 of the touch switch 6 is gripped, 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 cleaner main body 1 is started. When the hand is released from the lever 7, the touch switch 6 is turned off, and the electric blower of the cleaner body 1 stops. That is, since the electric blower automatically stops when the hand is released, the touch switch 6 is an effective device in terms of power saving. Further, when the switching ring 11 is rotated, the grip lever 7 is held in a hand-held state, that is, the movable contact 10 remains in contact with the fixed contact 9, and continuous operation becomes possible.

[Problems to be Solved by the Invention] In the conventional vacuum cleaner, the touch switch 6, the grip lever 7, the spring 8, the fixed contact 9, the movable contact 10, and the switching ring 11 are directly attached to the operation unit 4. . Therefore, confirmation work and adjustment work cannot be performed without assembling all the above-mentioned parts. For example, whether the grip lever 7 moves or whether the touch lever 6 moves only after all the above-mentioned parts are attached to the operation unit 4. I was able to check the operation and make adjustments. In addition, even when servicing, there is a problem that repair cannot be performed unless all the above-mentioned parts are disassembled.

The present invention has been made in order to solve the above problems, and provides an electric vacuum cleaner capable of easily confirming and adjusting the operation of parts such as a power switch part and a grip lever. The purpose is to do.

[Means for Solving the Problems] An electric vacuum cleaner according to the present invention has a grip part provided internally with a power switch part for controlling ON / OFF of an electric blower of the vacuum cleaner, and in the grip part, A switch holder to which the power switch part is fixed, a grip lever partly rotatably supported by the switch holder and having a dog for pressing an actuator of the power switch part, and a switch holder provided in the switch holder. A lock lever that engages with the grip lever and holds the electric power to the electric blower in an ON state is provided.

[Operation] In the present invention, the power switch is turned on and off by operating the grip lever, and the electric blower of the electric vacuum cleaner is turned on and off. Then, by operating the lock lever to engage with the grip lever, it is possible to keep the power supply to the electric blower in the ON state. Also, the power switch section, the grip lever and the lock lever have a structure that can be attached to the switch holder, and therefore, the operation check and adjustment work must be performed before the grip section is attached to the switch holder. It can be done at the installed stage. Further, even at the time of servicing, it is only necessary to remove the switch holder from the grip portion, and the problem that all the above-mentioned parts have to be disassembled is solved.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of an electric vacuum cleaner according to an embodiment of the present invention,
2 is an enlarged side view showing the operating portion, and FIG. 3 is a sectional view of the operating portion.

As shown in the figure, in this embodiment, the operating portion 20 is composed of an air passage pipe portion 21 through which suctioned air passes, and a grip portion 23 formed in a loop shape by providing a substantially triangular space portion thereon. Has been done. The grip 23 is separated from the ventilation duct 21.
One end of the air passage pipe portion 21 is detachably connected to the hose 3 and the other end thereof is detachably connected to the pipe 5. This grip portion 23 is provided so that the electric vacuum cleaner can be easily operated, and in order to move the floor brush 2 smoothly on the floor surface, it is substantially perpendicular to the axis of the connecting pipe 2a (α = 90). ± 15
Bent).

On the outside of the grip 23 that can be operated with the index finger or thumb, a switch 24 for the electric motor for rotating the brush built in the floor brush 2 and a slide volume 25 for controlling the power of the electric blower built in the cleaner body 1 are provided. Is provided. The switch 24 of the brush rotating electric motor may be provided when necessary.

On the other hand, a grip lever 27 for operating the power switch unit 26 of the electric blower is provided on the inside of the curved portion of the grip 23, that is, at the portion where the abdomen of the four fingers comes into contact. That is, when the grip lever 27 is gripped, the power switch unit 26 is turned on, and when released, it is turned off
Becomes Further, a lock lever 28 for locking the grip lever 27 is arranged in front of the grip lever 27 for convenience.

Further, the internal configuration of the grip portion 23 will be described with reference to FIGS.

4 is an exploded view of the grip portion, and FIG. 5 is a sectional view taken along the line AA of FIG.

The switch holder 40 is housed in a case 30 forming a curved portion of the grip portion 23. The case 30 is composed of two parts 31 and 32 divided into upper and lower parts, and the parts 31 and 32 are integrally connected using the elasticity of the material. The switch holder 40 is composed of a grip lever mounting portion 41 and a lock lever mounting portion 42, and a screw hole 43 provided at the base end of the grip lever mounting portion 41 is screwed into a mounting boss 44 on the ventilation duct 21. 45, and the other lock lever mounting part 42 in the same way as the mounting piece on the ventilation duct 21.
Attach it to 46 with screws 47 and fix. Grip lever mounting part 41
Are accommodated between partition walls 33a, 33b on both sides provided in the case 30 as shown in FIG.

One end of the grip lever 27 has a projection 49 inserted into a hole 48 provided on the base end side of the grip lever mounting portion 41 to hold the grip lever 27 rotatably. The case 30 has an opening between a mounting boss 44 and a mounting piece 46, and a touch portion 50 curved so as to close the opening 34 is provided on the grip lever 27. Touch part
Reference numeral 50 protrudes slightly outside the opening. A spring 51 is mounted between the grip lever 27 and the grip lever mounting portion 41 in order to maintain the protruding state of the touch portion 50.

The grip lever mounting portion 41 includes a switch 52 for an electric blower and a switch 53 for a brush electric motor, which constitute the power switch portion 26.
Are attached in parallel with multiple protrusions 54,
A dog 57 for operating the actuators 55 and 56 of the power switches 52 and 53 simultaneously is provided on the grip lever 27. Further, an engagement portion 59 into which the tip 58 of the lock lever 28 is inserted is provided at the tip of the grip lever 27, so that the grip lever 27 is locked.

On the other hand, the lock lever mounting portion 42 of the switch holder 40 is formed in a box shape with the lower side opened, and a mounting piece 46
The lock lever 28 is slidably accommodated between the lock lever 28 and the lock lever 28. At one end of the lock lever 28, a projection 60 having a semicircular cross section is provided, and the projection 60 elastically locks in a sliding direction with locking recesses 61a, 61b formed in the lock lever mounting portion 42. It has become. The lock lever 28 is supported by supporting pieces 62a, 62b in the longitudinal direction, and a knob 64 protruding from the opening 63 of the mounting piece 46 is provided in the middle portion. Lock lever mounting part 42 on the opposite side of the locking recesses 61a, 61b
A stopper 65 for the grip lever 27 is provided inside the switch 5
The pressing force on 2,53 is regulated to protect them. The lead wires 66, 67 of the switches 52, 53 are attached between the side wall of the case 30 and the partition walls 33a, 33b as shown in FIG.

In addition, the width l of the case 30, that is, the grip portion 23 is a
Even when the operation section 20 is left on the floor without any care, the ventilation path pipe section 21 always comes into contact with the floor first, so that the power switch section 26 is protected.

Next, FIG. 6 is a control circuit diagram of this electric vacuum cleaner,
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 an electric motor for rotating a brush, and 72 is a substrate for mounting an electric component for controlling the electric blower 70.

 Next, the operation of this embodiment will be described.

Connect the hose 3, the operating part 20, the pipe 5 and the floor brush 2 to the cleaner body 1, and depending on the floor surface, for example, in the case of a carpet, set the slide volume 25 to the "strong" side, and further switch the brush rotation motor 71 to Turn ON and operate. At this time,
Since both the power switches 52 and 53 are OFF, neither the electric blower 70 nor the brush rotation electric motor 71 is started.

When the grip portion 23 is gripped, as shown in FIG.
Is pressed and the actuators 55 and 56 are simultaneously pressed by the dog, so that both the power switches 52 and 53 are turned on, and suction from the floor brush 2 is started. At this time, the grip lever 27
The tip rear part (movable restricting part) 59a of the device hits the stopper 65 to prevent the actuators 55 and 56 from being pressed more than necessary.

The suction air passes through the floor brush 2, the pipe 5, the ventilation duct 21, and the hose 3 in order, but the ventilation duct 21 is bent, so that the suction air passes through the ventilation duct 21 at a higher speed. I do. At this time, frictional heat and static electricity are generated between the inner wall of the tube and the tube. However, since the grip 23 is separated, the user does not feel uncomfortable. Further, since the grip portion 23 is formed substantially perpendicular to the axis of the connecting pipe 2a of the floor brush 2, it is easy to apply a force to the floor brush 2, and the floor brush 2 can be operated smoothly.

When the cleaning is interrupted or terminated, the grip lever 27 is automatically restored by the spring 51 by releasing the grip 23.
The power switches 52 and 53 are both turned off, and the electric blower 70 and the brush rotating electric motor 71 stop operating.

Further, even if the operating section 20 is left unattended, the grip lever 27 is provided inside the grip section 23, so that it does not operate by touching other objects.

When restarting the operation, the switch 24 and the slide volume 25 are already set, so that the operation can be performed only by gripping the grip portion 23.

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. 8, the grip lever
When the knob 64 of the lock lever 28 is pulled while the user holds 27, the tip of the lock lever 28 engages with the engaging portion 59 of the grip lever 27, and the projection 60 moves from the previous engaging recess 61a to the next engaging recess. It moves to 61b and it is locked with this and the grip lever 27 is locked. As a result, the grip lever 27 is in the same state as when it is squeezed, and the power switches 52 and 53 are not turned off even when the hand is released.

After cleaning, turn off switch 24 and slide volume 25
If set to F, it will be treated the same as a conventional vacuum cleaner.

Next, FIG. 9 is a side view showing another embodiment of the present invention.
This is the case of 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 the handle is
80 type.

Also in this case, the operation unit 20 is provided on the upper part of the handle 80, and the operation unit 20 is gripped by the grip lever 27 similarly to the above embodiment.
The grip portion 23 having the lock lever 28, the slide volume 25, and the like, and the support portion 29 that supports the grip portion 23 are formed in a loop shape so that the width of the support portion 29 is larger than that of the grip portion 23 or the floor brush 2 is provided. The grip portion 23 can be formed so as to be perpendicular to the axis of the connecting pipe 2a, and the same operational effect as described above can be obtained. It should be noted that in this case, although the air passage pipe portion is not provided, the support portion 29 constitutes a part of the operation unit 20 instead of the air passage pipe portion.

As described above, according to this embodiment, the following many effects can be obtained.

The movable restriction part of the grip lever engages with the stopper of the switch holder to prevent the actuator of the power switch part from being pressed more than necessary, so the power switch part is protected, and the power switch part's It is possible to improve the assemblability by making the configuration into one part.

Further, since the grip lever is provided on the back side of the operation section, even if the operation section is left unattended during cleaning, the grip lever does not come into contact with a desk or the like.

Since the electric blower can be turned on and off by operating the grip lever, the power switch is turned on and off every time.
Not only does it not have to be F, but it is safe because the grip lever does not operate even if the operating part is left on the desk or the like.

In addition, the power switch is turned on and off by operating the grip lever that is elastically urged by the spring member, so the operability is much greater than when the power switch is turned on and off directly. It ’s getting better.

Since the operation portion is formed apart from the air passage pipe portion, static electricity which is likely to be generated in the air passage pipe portion is not transmitted, so there is no discomfort. Further, even if the operating section is left unattended, the blower pipe section and the supporting section hit the floor surface first, so that the shock can be alleviated and the electric parts can be protected. Switches can be integrated into the operating section, making them compact.

[Advantages of the Invention] As described above, according to the present invention, a switch holder in which the power switch section is fixed is provided inside the grip section in which the power switch section is provided, and a part of the switch holder is rotated. Energize the electric blower by engaging the grip lever that is movably supported and has a dog that presses the actuator of the power switch and the grip lever provided in the switch holder.
Since it has a lock lever that holds the power switch in one state, the power switch part can be made into one part, and the operation of the parts attached to the switch holder can be checked and adjusted before attaching to the grip part. Furthermore, even during servicing, repair and the like can be performed simply by removing the switch holder from the grip portion.

[Brief description of drawings]

FIG. 1 is a side view of an electric vacuum cleaner according to an embodiment of the present invention,
FIG. 2 is an enlarged side view of the operation unit, FIG. 3 is a cross-sectional view of FIG. 2, FIG. 4 is an exploded view of the grip unit, and FIG.
A sectional view taken along the line A, FIG. 6 is a control circuit diagram of the electric vacuum cleaner, FIG. 7 is a sectional view showing an operation when the grip lever is gripped, and FIG. 8 is a sectional view showing a lock lever 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, and FIG. 11 is a sectional view of its operating portion. 1 ... Vacuum cleaner main body 20 ... Operation part 23 ... Grip part 25 ... Slide volume 26 ... Power switch part 27 ... Grip lever 70 ... Electric blower In the figure, the same symbols indicate the same or corresponding parts. .

Continuation of the front page (56) References JP-A-61-62423 (JP, A) Actually open-SHO 63-48552 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A grip holding part having a power switch part for controlling ON / OFF of an electric blower of an electric vacuum cleaner, wherein the grip part has a switch holder to which the power switch part is fixed, A part of the switch holder is rotatably supported, and a grip lever having a dog for pressing the actuator of the power switch section and the grip lever provided in the switch holder are engaged to drive the electric motor. An electric vacuum cleaner, comprising: a lock lever that holds an electric power to the blower in an ON state.