JPS6226045Y2 - - Google Patents

Description

[Detailed description of the invention] This invention prevents forgetting to attach the dust bag in a vacuum cleaner using a dust bag, and also prevents the dust bag from coming off, preventing the lid from opening or falling off. It relates to a device equipped with a device for preventing

With conventional vacuum cleaners, even if you forget to attach the dust bag, it is not visible from the outside, so if you continue to operate the vacuum cleaner without noticing, dust will accumulate inside the dust case.
Not only does it take time to remove this dust later, but the dust may also be sucked into the blower and become impossible to remove, or the accumulated dust may cause the brakes to be applied, leading to an accident that could result in burnout of the motor. The sex was hot.

In addition, as a structure to prevent forgetting to attach a dust bag, there are
This is shown in the issue of the publication, etc. However, none of these discloses how the dust bag falls off, the lid opens, or the lid falls off.

The present invention aims to eliminate the above-mentioned accidents with a simple structure, and is a vacuum cleaner with a built-in electric blower and a dust bag removably attached to the intake port in the dust box via a mouth plate. , a lid that covers the upper part of the dust box, a protrusion that hangs down from the inner surface of the lid, and a cam plate rotatably mounted near the intake port at a position corresponding to the protrusion, and the cam When the dust bag is not attached, the plate is biased by its own weight or a spring to tilt backward at a certain angle around the axis, and the cam plate and the protrusion of the lid come into contact to prevent the lid from closing; The cam plate is provided with hook portions that are engaged with the hook portions of the opening plate and the protruding portion of the lid, respectively, when the dust bag is attached.

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

1 and 2, reference numeral 1 denotes a vacuum cleaner body, which has an electric blower 3 built inside, rollers 4 for moving downwards, casters 5, and a handle 6 at the front (left side in FIG. 2). It is equipped with Reference numeral 2 denotes a main body cover, which covers the upper part of the electric blower 3 housed in the rear part of the main body 1 (right side in FIG. 2), and has a switch button 7 projecting from its upper surface. Reference numeral 8 denotes a lid that covers the upper part of the dust box 9 provided at the front part of the main body 1, and is detachable or openable and closable so that the dust bag 13 can be attached and detached. Reference numeral 10 denotes a front cover fixed to the main body 1 using screws, etc.
The air intake port 11 is opened at the center of the front part. A dust suction hose can be attached to the intake port 11. Reference numeral 12 denotes an air intake rubber which is connected to the rear of the air intake 11 in a sealed manner, and is clamped and fixed between a rib 1a provided at the front of the main body 1 and a front cover. A mouth plate 14 that forms the mouth of the dust bag 13 is provided at the rear tapered portion of the intake rubber 12.
is airtightly removable. Reference numeral 15 denotes a protrusion extending vertically from the inner surface of the lid 8. Reference numeral 16 denotes a cam plate rotatably provided near the mouth plate 14, and a horizontal piece 17 formed inside the front part of the main body 1.
It is pivotally mounted on the top by a shaft 18, and is biased by its own weight or a spring so that it can be tilted backward by a certain angle. When the dust bag 13 is attached to the cam plate 16, the cam plate is pushed by the opening plate 14 of the dust bag 13 and rotated forward, so that the upper end of the cam plate 16 is attached to the lid 8.
The protrusion 15 will not come into contact with the protrusion 15. On the other hand, when the dust bag 13 is not attached, the cam plate 16 is attached to the shaft 18.
The lid 8 is tilted backward about the axis, and its upper end is located below the protrusion 15 of the lid 8, so that the lid 8 cannot be closed. That is, when the cam plate 16 is not attached with the dust bag 13, its rear inclined lower end surface touches the horizontal piece 17 of the main body 1 when the cam plate 16 is in a rearward tilted position at a certain angle.
It is supported in abutment by a nearby protrusion, and is prevented from tilting further backwards.

Therefore, the lid 8 remains open, and it can be seen at a glance that no dust bag is attached from the outside. Also, in the unlikely event that you run the vacuum cleaner without noticing that the lid 8 is open, a large amount of air will be sucked in through the gap in the lid 8 that remains open.
It can be detected because there is almost no suction force acting on the tip of the nozzle after passing through the dust suction hose, and no dust is sucked in. Also, since only air is sucked into the dust box 9, the above-mentioned accidents can occur. It will not cause this.

Further, in this embodiment, a mouth plate locking hook portion 19 is provided in the portion of the cam plate 16 that contacts the mouth plate 14, and a lid locking hook portion 20 is provided in the portion that contacts the protruding portion 15 of the lid 8. There is. That is, a rearward facing lid hook part 21 is formed at the lower end of the protruding part 15 of the lid 8, and a forward facing lid locking hook part 2 that engages with this is formed.
0 protrudes above the opening plate locking hook portion 19. The lid hook portion 21 and the lid locking hook portion 20 are disengaged when the lid 8 is strongly pulled up, and when the lid 8 is pressed strongly when fitting, the lid hook portion 21 and the lid locking hook portion 20 are deformed and engaged elastically. The surface is inclined. In this way, by providing a hook for locking the mouth plate in the part that contacts the mouth plate and a hook part for locking the lid in the part that contacts the protruding part of the lid, the vacuum cleaner can be easily used while transporting the vacuum cleaner or when the vacuum cleaner is tipped over. There is no longer any risk of the lid opening or falling off.

As described above, the vacuum cleaner of the present invention has a protrusion that hangs down from the inner surface of the lid that is detachable or openable, and a cam that is rotatably mounted near the mouth plate of the dust bag of the main body that corresponds to the protrusion. This cam plate is in a position where the lid cannot be closed by tilting backwards when the dust bag is not attached, and when the dust bag is attached, the mouth plate of the dust bag is attached to the cam. It is arranged so that the lid can be completely closed by engaging with the plate and avoiding contact with the protrusion of the lid. Therefore, if you forget to insert a dust bag while driving, dust may accumulate in the dust box, the electric blower may become clogged with dust and burn out the motor, and fine dust may be scattered throughout the room along with the exhaust air. This accident can now be prevented.

Furthermore, the cam plate is provided with a hook portion that engages with the opening plate and a hook portion that engages with the hook portion of the protruding portion of the lid. Because they are integrated into one unit, changes in air flow and air pressure while the vacuum cleaner is in operation can cause
The dust bag can be prevented from falling off, and the lid can also be prevented from opening or falling off while the vacuum cleaner is in operation or when the vacuum cleaner is tipped over.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a vacuum cleaner according to the present invention, Fig. 2 is an enlarged partially cutaway sectional view showing an embodiment of the invention, and Fig. 3 is an enlarged sectional view of essential parts of an embodiment. be. 1...Body, 3...Electric blower, 8...Lid, 9
...Dust box, 11...Intake port, 13...
Dust bag, 14... Mouth plate, 15... Projection, 16...
...Cam plate, 19, 20, 21...Hook part.

Claims (1)

[Scope of utility model registration request] A vacuum cleaner with a built-in electric blower and a dust bag removably attached to the intake port inside the dust box via a mouth plate has a lid that covers the top of the dust box and a protrusion that hangs down from the inner surface of the lid. and a cam plate pivotably mounted near the intake port at a position corresponding to the protrusion, and when the dust bag is not attached, the cam plate is rotated about the axis by its own weight or a spring. The cam plate and the protrusion of the lid come into contact with each other to prevent the lid from closing, and when the dust bag is attached, the mouth plate and the protrusion of the lid A vacuum cleaner characterized in that a cam plate is provided with hook parts that are engaged with the respective hook parts of the vacuum cleaner.