JPH0718358Y2 - Warning device for forgetting paper bag of vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial field of application The present invention mainly relates to an electric vacuum cleaner used at home or the like.

2. Description of the Related Art Generally, in an electric vacuum cleaner, a paper bag is set in a dust collection chamber in order to make dust dumping hygienic and convenient. It is inconvenient to collect dust in the forgotten state, and therefore, a means for notifying that the user has forgotten to set the paper bag is taken.

By the way, in a conventional paper-bag forgetting alarm device of an electric vacuum cleaner, for example, as shown in FIG. 4, a front cover 3 for connecting a hose connecting pipe 2 is attached in front of a dust collecting chamber 1,
An alarm 5 for vibrating a vibrating body to generate a sound due to the flow of wind is engaged with and held by a rib 4 inside the front cover 3. Further, the dust collection chamber 1 is provided with a communication port 6 communicating with the inside of the front cover 3, an alarm packing 7 having a hole is attached to the communication port 6, and one end of the alarm packing 7 is brought into contact with the paper bag core 8. Under normal conditions, the alarm 5 prevents ventilation to the dust collecting chamber 1, and if the user forgets to put on the paper bag, the outside communicates with the inside of the dust collecting chamber 1 via the alarm 5, and the alarm 5 produces a horn by the wind flow due to the negative pressure. It sounds to let the user know.

However, in this structure, since the number of parts is large and the cost is high, and the number of parts is large, for example, the mating portion between the dust collecting chamber 1 and the rib 4 of the front cover 3, the rib 4 and the like. There is a problem that the alarm 5 does not sound well due to air leaking from the gap of the alarm 5, or conversely, if the alarm 5 is pressed in and the external force is applied too much due to the gap, the alarm 5 will be deformed. It had the problem of not ringing at all.

Therefore, the present invention intends to provide an inexpensive and highly reliable alarm device with a reduced number of parts.

Means for Solving the Problems The technical means of the present invention for solving the above problems is, in an electric vacuum cleaner that attaches a paper bag having a core to a dust collection chamber to collect dust, an intake port provided at an intake port. A hollow part is formed in the packing, and an alarm that vibrates the vibrating body to generate a sound due to the flow of wind is installed in this hollow part, and one open end of the hollow part of the air inlet packing is applied to the paper bag core side. The other open end of the hollow portion is brought into contact with an external communication port provided in a part of the dust collection chamber.

Action The action of this technical means is as follows.

That is, since the alarm is built in and held in the intake port packing and disposed inside the dust collection chamber, there is no mating portion that leaks to the outside between the dust collection chamber and the alarm, and a highly reliable alarm is possible. It is a thing.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 10 denotes a cleaner body, which is internally provided with a motor fan 11 and has a dust collecting chamber 12 in front thereof. In front of the dust collection chamber 12, a suction port 13 for connecting a hose
Is opened, and an intake port packing 14 is attached to the intake port 13. Concentric at least double ribs 15 are integrally formed around the outside of the intake port 13, and a communication port 16 is provided in a part of the wall of the dust collection chamber 12 between the double ribs 15. . In the dust collecting chamber 12, the paper bag 17 is arranged so that its core 17a abuts on the intake packing 14. The alarm 18 is incorporated in the hollow portion of the intake port packing 14 on the dust collecting chamber 12 side, and one open end of the alarm 18 faces the paper bag core 17a and the other end faces the communication port 16. In addition, 19 in the figure is a dust collection chamber
It is a lid that covers 12.

Next, the operation of the configuration of this embodiment will be described.

When the paper bag 17 is correctly placed in contact with the air inlet packing 14 in the dust collection chamber 12, the open end of the alarm 18 is also closed by the core 17a, and the horn does not sound.

If the paper bag 17 is not attached or the core 17a is not set in the correct position, the contact between the alarm 18 and the core 17a will also be released, and the negative pressure in the dust collection chamber 12 will cause the communication port 16 from outside the machine.
Since the air flows through the alarm 18 to the dust collecting chamber 12, the alarm 18 sounds a horn to inform the user.

Effect of the Invention As is clear from the description of the above embodiments, according to the present invention, an alarm is incorporated in the inlet packing, one open end of the alarm is the paper bag core, and the other end is part of the dust collecting chamber. Since it is facing the communication port of, the structure is simple, the number of parts is small, it is inexpensive, and there are few combined parts, so there is no air leakage,
Moreover, since the alarm is built in and held by the air inlet packing that is an elastic body, the built-in part and the alarm are in close contact with each other and no gap is generated, and it is possible to trust that the excessive force does not cause the alarm to deform. It is possible to provide a highly reliable alarm device. In addition, an alarm is placed in the hollow part of the air inlet packing, and one open end of the hollow part is brought into contact with the paper bag core. It is also possible to prevent air leakage.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an electric vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a lateral sectional view of the same, FIG. 3 is a partial perspective view seen from the front, and FIG. 4 is a conventional example. FIG. 3 is a lateral cross-sectional view of the essential parts of the electric vacuum cleaner. 12 …… Dust collection chamber, 13 …… Intake port, 14 …… Intake port packing,
15 …… rib, 17 …… paper bag, 17a …… paper bag core, 18 …… alarm.

Claims (1)

[Scope of utility model registration request] 1. An electric vacuum cleaner for collecting dust by mounting a paper bag having a core in a dust collecting chamber, wherein a hollow portion is formed in an air inlet packing provided in an air inlet, and a flow of air flows in the hollow portion. The built-in alarm that vibrates the vibrating body to generate a sound is brought into contact with one open end of the hollow part of the air inlet packing to the paper bag core side, and the other open end of the hollow part is part of the dust collection chamber. A paper bag forget alarm device of the electric vacuum cleaner that faces the communication port with the outside.