JPH0316544A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent the direct transmission of air-intake sounds of a fan motor to a dust collecting chamber so as to reduce the sounds produced by a vacuum cleaner by providing grating ribs and reinforcing ribs in front of an air-intake hole which is a passage of air to the fan motor. CONSTITUTION:A motor chamber 25 with a built-in fan motor 22 and dust collecting chamber 24 housing a paper bag 23 are provided in the main body case 21 of this vacuum cleaner. The opening on the top of the chamber 25 is covered with a motor cap 26 and the opening on the top of the chamber 24 is closed by the cap 27 of the chamber 24 in an openable state. Then ring-like vibration-proof front rubber 33 is fitted to the front outer periphery of the motor 22 and, at the same time, a partition plate 35 united with the case 21 to one body is brought into contact with the front face of the rubber 33. In addition, an air-intake hole 39 which is used for supplying air to the motor 22 is provided through the plate 35 and comb-sheped grating ribs 40 are arranged in front of the plate 25 on the chamber 24 side. In addition, reinforcing ribs 41 are provided between the grating ribs 40 in such a way that the ribs 41 in front of the hole 39 are made higher than the ribs 41 at other locations so that the hole 39 cannot be seen.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to vacuum cleaners commonly used in households.

2. Description of the Related Art The structure of a conventional vacuum cleaner of this type will be described with reference to the drawings.

In Figures 4 and 6, 1 is shown at its rear;
It is a main body case in which a motor 2 and a cord reel (not shown) are buttoned at the front and a paper packaging 3 is built in. Main case 1
The upper opening containing the motor 2 is closed and fixed by a motor cover 4. Further, the upper opening of the dust collection chamber 5 in front of the main body case 1 in which the paper package 3 is housed is closed by a dust lid 6 so as to be openable and closable.

Next, support for the motor 2 will be explained. The motor 2 has a fan (not shown) in front and is covered by a casing 7. The motor 2 is elastically supported by the main body case 1, with the outer circumference of the casing 7 being supported by a front vibration-proofing rubber 8, and the housing portion 9 of the motor bearing being supported by a rear vibration-proofing rubber 10. The anti-vibration rubber front 8 has a substantially cylindrical shape, and its front end 11 is in close contact with an air tight rib 13 provided on a partition plate 12 formed integrally with the main body case 1, so that the air exhausted from the motor 2 can It also serves to prevent the suction case from falling again. Reference numeral 14 indicates intake holes provided in the partition plate 12, which are provided in a grid shape as shown in FIG.

In the dust collection chamber 6 in front of the intake hole 14, in the event that the paper binding is torn, dust may be sucked into the motor 2 side and cause a malfunction.
Filter 16 to prevent dust from entering the exhaust gas
is placed. This filter 16 is supported by filter support ribs 16.

Problems to be Solved by the Invention However, such conventional vacuum cleaners have a noise problem. That is, when Mome 2 is operated, the fan rotates and air flow is generated, which also generates intake noise. In addition to the intake noise that passes through the main body case 1 and the motor cover 4 and is heard as noise outside, there is also intake noise that comes out through the hose, extension pipe, and floor suction device along with the air flow. Here, in conventional vacuum cleaners, the sixth
As shown in the figure, since there is only a filter made of non-woven fabric or urethane in front of the intake grid 14 in front of the motor 2, the sound is directed forward, that is, to the side of the dust collection chamber 5. It goes directly. Therefore, there is a problem in that not only the noise transmitted through the dust lid 6 is loud, but also the noise generated from the floor suction device becomes louder as described above.

Means for Solving the Problems The means of the present invention for solving the above-mentioned problem is to separate the motor chamber and the dust collection chamber, and to make contact with the front surface in front of a ring-shaped anti-vibration rubber provided around the outer periphery of the fan motor. At the same time, comb-shaped lattice ribs and reinforcing ribs provided between the lattice ribs are provided in front of a partition plate integrally formed from the main body case having intake holes, and the lattice ribs and reinforcing ribs are used to strengthen the partition plate. The front side of the intake hole provided in the plate is closed off so that the intake hole cannot be seen from the front.

Effects The effects of the above means are as follows. That is,
Grid ribs and reinforcing ribs are placed in front of the intake hole, which is the air passage to the fan motor, which prevents the intake noise generated by the fan motor from directly transmitting to the dust collection chamber, making it quiet. It is something that can be measured.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, 21 is a fan motor 22,
The main body case of the vacuum cleaner has a built-in cord reel (not shown), etc., and has a dust collection chamber 24 in front of a fan motor 22 in which a paper package 23 is attached. The upper opening of the motor chamber 26 containing the fan motor 22 has a main body case wall 26.
is provided, and in front thereof has a dust lid 27 that can open and close the upper part of the dust collection chamber 24.

The fan motor 22 includes a motor section 28. The fan 7 is rotated by the motor 2B, and a casing 30 covers the fan 29, and an intake hole 3 is provided in the center of the casing 3o.
1. The motor section 28 has an exhaust hole 32.

Next, a support structure for the fan motor 22 will be explained.

A vibration-proof rubber front 33 is attached to the outer periphery of the caning 30 of the fan motor 22. This anti-vibration rubber front 33 is made of a soft material such as urethane foam, and has a cylindrical shape. The main body case 21 is sandwiched in the radial direction), and the front surface is in contact with a partition plate 36 formed integrally with the main body case 21 to form an airtight state.

A vibration-proof rubber back 36 is fixed to the rear part of the motor section 28.
By fitting the anti-vibration rubber rear support plate 38 at the rear of the main body into the groove 37 provided in the anti-vibration rubber rear 36, the motor part 28 and the main body case 21 are supported in the radial direction, and the entire fan motor 22 is supported. is in the longitudinal direction (thrust direction)
It is set so that it does not move.

Reference numeral 39 denotes an intake hole provided in the partition plate 36 of the main body case 21, through which air flows from the dust collection chamber 24 to the intake hole 31 of the fan motor 22. In front of the partition plate 36, a comb-shaped lattice rib 4o is integrally formed with the main body case 21, which is provided to prevent the user from accidentally inserting his/her fingers into the intake hole 31 and injuring himself/herself. When viewed from above, the lattice ribs 40 have a substantially U-shape as shown in FIG.
1 ensures its strength.

Note that this reinforcing rib 41 is the third reinforcing rib 41 when viewed from the front.
As shown in the figure, A, B,
C and DK are installed high above, while the others are installed low to secure the flow path surface.

Reference numeral 42 is a filter for preventing dust from being sucked into the fan motor 22 and causing a malfunction in the event that the paper wrapping 23 is torn, or from dust getting mixed into the exhaust air. It is positioned so as to be sandwiched between the lattice ribs 40.

Note that the upper end surfaces of the lattice ribs 40, the filter 42, and the filter support ribs 43 are covered by locks 44 that are sandwiched and fixed between the motor lid 26 and the main body case 21.

The configuration of the present invention has been described above, and the operation will be explained next. When the fan motor 22 is operated, the 77 fan 29 rotates to generate air flow. Then, air flows through the intake holes 31 and 71.
It passes through the tube 29 and the exhaust hole 32! Then, it collides with various parts and generates sound. This sound is transmitted to the front dust collection chamber 24 by the partition plate 351/(: the intake hole 3 provided
It will propagate through 9. However, in the present invention, the upper part is covered with a nobutsukin 44, and even if the button is placed in the front, the lattice ribs 44 are used except for the air passage shown in the shaded area in FIG.
The reinforcement ribs 41 prevent sound from directly transmitting through the intake holes 39. Particularly in front of the intake hole 39, this effect is achieved by extending the reinforcing ribs 41 upwards like A, B, C, and D more than the other ribs. In other words, since the sound that has been blocked once is transmitted to the dust collection chamber 24, it is attenuated, and the noise that is transmitted through the dust cover 27 and generated is also reduced.
Hose, extension pipe. The noise transmitted to the outside through the floor suction tool can also be reduced, making the vacuum cleaner quieter.

Effects of the Invention As described above, the present invention includes a comb-shaped lattice rift and this lattice in front of a partition plate that separates a motor chamber from a dust collection chamber and has intake holes for passing air into the motor chamber. By providing reinforcing ribs to connect the ribs, it is possible to prevent sound from directly propagating from the intake hole to the dust collection chamber, making it possible to make the vacuum cleaner quieter.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of the main parts of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a cutaway view of the main parts, and Fig. 3 is an enlarged view of the main parts of the same lattice rib seen from the front. 4 is a cutaway side view of the main parts of a conventional vacuum cleaner, and FIG. 6 is an enlarged view of the main parts of a part of the filter seen from the front. 21...Body case, 22...Fun motor, 24...Dust collection chamber, 31...Intake hole, 36...Partition Plate, 39...Intake hole, 40...Lattice rib, 41...Reinforcement rib, 42...Filter, 44...
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Claims (1)

[Claims] A main body case that has a motor chamber containing a built-in fan motor, a dust collection chamber that stores paper packaging, a motor lid that closes the upper opening of the motor chamber, and a dust collector that freely opens and closes the upper opening of the dust collection chamber. A chamber lid, a ring-shaped anti-vibration rubber front attached to the front outer periphery of the fan motor, a partition plate that comes into contact with the front of the anti-vibration rubber and is integrally formed with the main body case, and a fan motor provided on the partition plate. It has an intake hole for flowing air to the air intake hole, comb-shaped lattice ribs provided on the dust collection chamber side in front of the partition plate, and reinforcing ribs provided between the lattice ribs. The front part of the vacuum cleaner is set higher than other reinforcing ribs so that the intake hole is not visible from the front.