JPS60210228A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a canister-type vacuum cleaner for use in general households.

Conventional Structure and Problems Conventionally, in this type of vacuum cleaner, a storage box for storing vacuum cleaner accessories, etc. is provided in the opening of the dust collection chamber equipped with a dust collection bag, and is detachable via a buckle. In addition, it was common to have a storage box with a removable lid above the storage box. However, with this configuration alone, when the dust suction port becomes clogged with dust or a certain amount of dust accumulates in the dust collection bag, almost no air is sucked into the vacuum cleaner, resulting in a nearly sealed state.

In this case, a large negative pressure is applied inside the dust collection chamber by the electric blower, and a large negative pressure is also applied to the storage box covering the opening of the dust collection chamber, causing it to bend downward and become deformed. However, since the storage box lid is not connected to the dust collection chamber, negative pressure is still applied. As a result, the storage box 6 deforms and the storage box lid 7 tries to maintain its original shape, resulting in a problem that the fitting state of the storage box lid 7 does not match and the storage box lid comes off from the storage box.

OBJECTS OF THE INVENTION It is an object of the present invention to solve these conventional problems and provide an easy-to-use vacuum cleaner that prevents the storage box lid from coming off.

Structure of the Invention The vacuum cleaner of the present invention includes a dust collection chamber provided with an opening above, and a storage box for storing accessories that is detachably provided above the opening and has an air leakage device.

It has a storage box lid that is removably installed above the storage box, and when the amount of air sucked into the vacuum cleaner becomes low and the air is close to being sealed, the air leakage device operates and collects the air at the bottom of the storage box lid. The dust chamber is linked to apply negative pressure to the lid of the storage box, creating the same conditions as the storage box and preventing the lid from coming off.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments will be described based on the accompanying drawings. In Figures 1 to 3, 1 is a dust collection chamber which has a dust collection bag 2 inside and has an opening 3 above for taking in and out of the dust collection bag 2, and 4 has a buckle attached to the opening 3. This accessory storage box has a storage part 6 which is removably installed through a vacuum cleaner 6 and which stores vacuum cleaner accessory parts such as a crevice nozzle. The accessory storage box 4 has an opening 8 in its upper part that is covered with a storage box lid 7, and is formed with claws 9, 10 that engage with each other. Reference numeral 11 denotes an air leak device provided at a corner of the accessory storage box 4, and a lid 14 is pressed against a hole 12 provided in the accessory storage box 4 by a compression spring 13. The compression spring 13 is supported by holding a spring support 16 in the accessory storage box 4 with screws 16 or the like. Further, the compression spring 13 is set to be compressed when pressure above a certain level is applied. 17 is an electric blower, and 18 is an intake port.

To explain the operation in the above configuration, dust-containing air enters the dust collection bag 2 from the air intake port 18 when the electric blower 17 is operated. Of course, if a lot of dust accumulates in the dust collection bag 2, the air intake port 18 and the hose connected to it,
When the extension pipe (not shown) is clogged with large debris, the amount of air flowing to the electric blower 17 decreases, and a large pressure (negative pressure) 75 is applied to the dust collection chamber 1. Naturally, pressure is also applied to the accessory storage box 4 covering the upper part of the dust collection chamber 1, causing it to bend downward as shown in FIG. At this time, the accessory storage box 4 is provided with an air leak device 11, and when a certain amount of pressure is applied, the compression spring 13 is compressed and the lid 14 separates from the hole 12. The dust collection chamber 1 and the inside of the accessory storage box 4 are communicated with each other. Therefore, a similar pressure is applied to the storage box lid 7, and the accessory storage box 4 and the storage box lid 7 tend to bend together, so that the claws 9 and 10 do not become unlatched and can be stored. This prevents the box lid 7 from coming off during use.

Effects of the Invention As is clear from the above embodiments, the vacuum cleaner of the present invention has the following features:
It has an accessory storage box with a removable storage box lid in the opening above the dust collection chamber, and is also equipped with an air leak device that allows air to flow when a certain level of negative pressure is applied to the dust collection chamber. By installing it in the storage box, it is possible to prevent the storage box lid from coming off when large negative pressure is applied to the dust collection chamber while the vacuum cleaner is operating, making it possible to provide an easy-to-use vacuum cleaner. be.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is a cutaway sectional view of the same essential parts, and FIG. 3 is a perspective view of the same storage box.
4 and 6 are sectional views before and after the air leakage device is operated, and FIG. 6 is a sectional view showing a state in which the accessory storage box and the storage box are engaged. 1...dust collection chamber, 3...opening, 4...
...Accessories storage box, 7...Storage box lid, 11.
...Air leakage device. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] A dust collection chamber for dust collection having an opening at the top. an accessory storage box that is removably provided above the opening;
The accessory storage box has a storage box lid that covers the upper part of the accessory storage box, and the accessory storage box has a lid that allows air to flow from the bottom of the storage box lid toward the dust collection chamber when the pressure in the dust collection chamber falls below a certain level. A vacuum cleaner equipped with an air leak device.