JPH0824642B2 - Electric vacuum cleaner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a lower body having a dust collecting chamber and a motor chamber through a partition wall, and an upper body covering the motor chamber from above, and a collecting body provided in the lower body. A vacuum cleaner having a structure in which a ventilation hole communicating with the dust chamber and a communication pipe provided in the upper body are fitted to each other to form an air passage for communicating the indicator portion provided in the upper body with the dust collecting chamber. Is.

2. Description of the Related Art In the conventional vacuum cleaner shown in FIG. 4, for example,
When the dust bag 3 is attached to the upper part of the dust collecting chamber 2 of the lower body 1 with its front part lowered and slantingly attached, the indicator 4 notifying that much dust has entered the dust bag 3 has a dust cover. Since the indicator storage part 6 cannot be provided on the upper surface of 5, the communication pipe 7 connected to the indicator 4 is connected to the dust collection chamber 2 through the hole provided in the rear part of the dust cover 5 and provided in the indicator storage part 6. Was generally fitted to form a ventilation path between the dust collection chamber 2 and the indicator 4.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a structure, the indicator housing portion 6 is arranged at the rear portion in order to provide a space for housing the carrying handle portion 8 on the upper surface of the dust lid 5. Therefore, the connecting pipe 7 that connects the indicator 4 and the dust collecting chamber 2 is provided long and obliquely, which makes it difficult to insert.

In addition, since the communication pipe 7 is inserted at an angle, it is different from the die removing direction even when the die is produced. Therefore, a slide core and a diagonal cutting structure are required, which increases the die production cost. It was

Further, when the dust lid 5 is opened to remove the dust collecting bag 3, the communication pipe 7 that communicates with the indicator 4 is exposed, so that the communication pipe 7 is pushed in the direction of arrow A by a finger or the like, and the indicator 4 moves. Or, a gap is formed in the fitting portion 9 of the communication pipe 7, and air leakage causes malfunction of the indicator 4 and deterioration of the performance of the cleaner.

The present invention solves such a conventional problem, and forms a ventilation passage between the dust collection chamber and the indicator storage portion by fitting a communication pipe provided in the upper body and a ventilation hole provided in the lower body. The purpose of the present invention is to provide an indicator which is easy to assemble, and which is free from malfunctions in which pushing force from the outside is not applied.

Means for Solving Problems The technical means of the present invention for solving the above problems are
A lower body having a dust collection chamber and a motor chamber through a partition, an upper body that covers the motor chamber from above, an indicator storage section formed on the partition side of the upper body, and an indicator storage section that projects downward from the indicator storage section. Section L and a connecting pipe communicating with the motor chamber, and one end side of which is opened into the dust collecting chamber and the other end side is fitted into the connecting pipe.
A letter-shaped vent hole, and an indicator that is arranged in the indicator storage portion and communicates with the connecting pipe,
The ventilation hole is integrally formed with a partition formed on the lower body, and the indicator or the dust collecting chamber is communicated with the connecting pipe by the ventilation hole.

Action The action of this technical means is that the lower pipe and the upper body connect the connecting pipe and the ventilation hole so as to connect the dust collecting chamber and the indicator storage portion, and form a ventilation passage having a substantially L-shaped cross section. By doing so, the connecting pipe connecting the indicator and the ventilation passage can be easily assembled by vertically inserting the connecting pipe from above.

Further, by fitting and holding the ventilation hole having a substantially L-shaped cross section, which is projected from the lower body, by the communication pipe of the upper body, even if the negative pressure in the dust collection chamber rises during operation of the cleaner, Since the partition that separates the motor chamber is held by the fitting portion of the ventilation hole and the communication pipe, the partition does not fall toward the dust collection chamber, and therefore the performance does not deteriorate due to air leakage.

Further, even if the dust collection chamber is opened when the dust in the dust collection chamber is thrown away, the ventilation passage communicating with the indicator is formed by the upper body and the lower body in a substantially L-shaped cross section, so that the ventilation passage is pushed by a finger or the like. However, the connecting pipe of the indicator does not come off or shift, and the indicator does not malfunction or its performance does not deteriorate.

Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 2, reference numeral 10 designates a dust collecting chamber 11 which is open upward at the front.
A lower body having a motor chamber 12 at the rear.

A dust cover 13 that covers the dust collection chamber 11 is provided above the front portion of the lower body 10, and an upper body 14 that covers the motor chamber 12 from above is disposed above the rear portion of the lower body 10.

Further, a dust collection bag 16 for collecting dust is attached to the dust collection chamber 11 via an intake port valve 15 attached to the dust lid 13.

Further, in front of the upper body 14, an indicator storage portion 18 storing an indicator 17 for informing the user that dust has accumulated in the dust collection bag 16 in the dust collection chamber 11 is formed integrally with the upper body. ing. Here, the second in FIG.
The vertical cross section of the indicator 17 shown in the figure is shown.The indicator 17 is composed of a pointer 19 indicating the amount of dust in the dust bag 16 and a pointer spring 21 for pressing the pointer 19 against the pointer lid 20. It communicates with the dust collecting chamber 11 via an indicator elbow 22 which communicates with the dust chamber 11.

Next, regarding the structure of the upper body 14 having the indicator housing portion 18, the lower body 10 and the indicator 17,
A description will be given with reference to FIGS.

The indicator storage portion 18 is provided in front of the upper body 14, stores the indicator 17 therein, and is covered with a window frame 23 from the top.

In order to communicate the indicator 17 with the dust collection chamber 11,
The upper body 14 is provided with a connecting pipe 24 communicating with the motor chamber 12, and the dust collecting chamber 11 of the lower body 10 is provided at a position matching the connecting pipe 24.
A ventilation hole 26 having a substantially L-shaped cross section is provided in the upper part of the partition wall 25 that separates the motor chamber 12 from the motor chamber 12, and the connecting pipe 24 and the ventilation hole 26 are fitted and held to allow ventilation to communicate the dust collection chamber 11 and the indicator storage portion 18. Make up the road. And as shown in FIG.
An indicator elbow 22 having a substantially L-shaped cross section is fitted into the opening 27 on the side of the indicator housing 18 of the ventilation passage to connect with the indicator 17, and the air from the indicator 17 shown in FIG. Flow A is secured.

Next, the operation of the indicator 17, the connecting pipe 24, and the vent hole 26 will be described with reference to FIGS. 1 to 3.

When dust collects in the dust collecting bag 16 mounted in the dust collecting chamber 11 in FIG. 2, the inflow amount of air from the intake hole decreases and the pressure in the dust collecting chamber 11 increases. Using this pressure change, as shown in FIG. 3, the pointer 19 of the indicator 17 fitted in the connecting pipe 24 communicating with the dust collection chamber 11 repels the pushing force of the pointer spring 21 in the direction of arrow B. The movement indicates to the user that the dust bag 16 is full of dust.

Here, as shown in FIG. 1, the ventilation holes of the lower body 10
By fitting the connecting pipe 24 of 26 and the upper body 14,
The dust 16 collects, and the internal pressure of the dust collection chamber 11 increases,
Even if the partition wall 25 falls down in the direction of arrow C,
26 and the connecting pipe 24 are fitted so that the lower body 10
The partition wall 25 does not fall, and air does not leak from the motor chamber 12 to the dust collection chamber 11 to reduce the performance.

In addition, by assembling the upper body 14 to the lower body 10 to form a ventilation path that communicates with the indicator, the indicator elbow 22 that connects the indicator 17 and the connecting pipe 24 can be inserted straight from the top, making it easy to assemble. In addition, it has an easy shape that does not easily leak air.

Furthermore, even if the indicator elbow 22 that connects the indicator 17 and the dust collecting chamber 11 is opened with the dust lid 13 when the dust bag 16 in the dust collecting chamber 11 is removed, the indicator elbow 22 is moved from the dust collecting chamber 11 to a finger or a stick. Since it cannot be pushed with, the user will not accidentally push the indicator elbow 22 to cause air leakage and malfunction of the pointer 19 of the indicator 17.

EFFECTS OF THE INVENTION As described above, the present invention forms the ventilation passage for the indicator by holding and fitting the connecting pipe provided in the upper body and the ventilation hole provided in the lower body, so that the internal pressure of the dust collection chamber can be improved. It is possible to prevent the partition wall of the lower body from collapsing due to the increase and prevent air leakage.

Further, the indicator elbow is not exposed in the dust collection chamber, and is not pushed by the user with a finger or the like from the dust collection chamber, and air leakage due to displacement is eliminated.

[Brief description of drawings]

1 is a partially enlarged vertical sectional view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the same, FIG. 3 is a partially enlarged sectional view of the same, and FIG. FIG. 7 is a partially enlarged sectional view showing a conventional example. 10 …… Lower body, 11 …… Dust collection chamber, 12 …… Motor chamber,
14 …… Upper body, 17 …… Indicator, 18 …… Indicator housing, 24 …… Connecting pipe, 25 …… Bulkhead, 26 ……
Vents.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masakuni Soejima 1006, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References: 61-124268 (JP, U)

Claims (1)

[Claims] 1. A lower body having a dust collecting chamber and a motor chamber through a partition, an upper body covering the motor chamber from above, an indicator housing portion formed on the partition side of the upper body, and a lower portion from the indicator housing portion. Connecting pipe that protrudes to the end and communicates with the indicator storage part and the motor chamber,
A substantially L-shaped ventilation hole having one end side opened into the dust collection chamber and the other end side fitted into the connecting pipe; and an indicator arranged in the indicator housing portion and communicating with the connecting pipe, An electric vacuum cleaner in which the vent hole is formed integrally with a partition formed in the lower body, and the indicator to the dust collecting chamber are connected to the connecting pipe by the vent hole.