JPS591639Y2 - vacuum cleaner - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vacuum cleaner, in which a rotating brush that rubs the surface of a carpet to be cleaned separates the dust deposits that have adhered to the surface to be cleaned, and this dust is sucked by an electric blower. The present invention relates to an air intake mechanism for a vacuum cleaner that traps dust with a filter and deposits it in a dust collection case.

Conventionally, in this type of vacuum cleaner, the ventilation hole that is installed in the rotary brush installation part and sends dust into the rear dust collection case has a length in the width direction of the vacuum cleaner body, and the center of this length is located at the center of the body. It is designed to approximately coincide with the center of the width, and the intake port of the electric chamber in which the electric blower is installed is biased to one side in the width direction of the main body due to the transmission mechanism and the like.

For this reason, air is taken in unevenly from the vents located closer to the vents between the rotary brush installation part vents and the electric room intake ports, which are communicated via the dust collection case, and the intake air is averaged from the vents as a whole. There are drawbacks to not doing so.

The present invention was made in view of this point, and the position of the ventilation hole of the rotary brush installation part is adjusted inside the main body with respect to the air intake port of the electric chamber, which is formed biased to one side in the width direction of the vacuum cleaner main body. The opening is biased toward the opposite side of the air intake port, so that air can be evenly taken in from the ventilation port.

Next, embodiments of the present invention will be described with reference to the accompanying drawings FIGS. 1 and 2.

Reference numeral 1 denotes a vacuum cleaner main body, and in the front part of this main body 1, an arrangement part 3 for a rotary brush 2 is formed in a cylindrical shape with the left-right direction as the axis direction, and the lower part of this arrangement part 3 serves as a suction port. An opening 4 is formed, and the tips of the brushes of the rotary brush 2 rotatably mounted on the arrangement section 3 protrude from the opening 4.

Further, the main body 1 has a dust collection case storage section 5 formed at the rear adjacent to the installation section 3, and the installation section 3 and the storage section 5 have an arc-shaped upper part along the rotary brush 2 and a lower part facing backward. The main body 1 is partitioned off by a partition wall 6 that is slanted in the opposite direction.
A ventilation lower having a length in the width direction is opened.

Further, a mounting opening 8 for opening and closing the dust suction case storage section 5 is formed in the upper part of the main body 1, a clamp locking part 9 is formed at the front edge of the mounting opening 8, and a locking protrusion is formed at the rear edge. A rim 10 is formed.

Further, at the rear of the main body 1, there is a dust collection case storage section 5 and a partition wall 11.
An electric blower 13 is disposed in the electric chamber 12, and the suction side of the electric blower 13 is communicated with an intake port 14 formed in the partition wall 11.
The discharge side communicates with a discharge port 15 opened on the upper surface of the main body 1.

Since the transmission part is formed on one side of the main body 1, the air intake port 14 is not formed in the center of the main body 1 but on one side in the width direction of the main body 1, and the ventilation lower of the front partition wall 6 is formed along this length. The center of the width direction is the center of the width direction of the main body 1 (the center of the length of the rotating brush 2)
It is formed so as to be biased toward the side opposite to the intake port 14.

Also, the rotating brush 2 is connected to the belt 1 in the transmission part 16 of the electric blower 13.
7.

Further, the main body 1 is provided with the wheels 18 and the rear wheels 19,
The lower end of the operating rod 20 is pivotally attached to the rear part.

Next, reference numeral 21 denotes a dust collection case that is detachably attached to the dust collection case storage part 5 of the main body 1 through the mounting opening 8. The front part 22 of this dust collection case 21 has an arc-shaped upper part along the front partition wall A suction opening 23 is formed in the upper part facing the ventilation lower of the partition wall 6, and a gasket 24 is fitted to the opening edge of the suction opening 23 or the ventilation lower to airtightly communicate the two. It will be worn.

Moreover, on the slope 25 below the ventilation lower of the front partition wall 6 in the dust collection case storage section 5, this slope 25 and the dust collection case 2
A valve plate 26 inserted between the front part 22 of 1 is housed,
A tension spring 27 with this valve plate 26 provided on both sides of the ventilation lower;
27 to force the ventilation lower in the direction of closing, and the locking protrusion 28 formed at the lower end of the valve plate 26 is engaged with the locking step 29 formed at the lower end of the front part 22 of the dust collection case 21. Match.

Furthermore, guide rails 30, 30 are provided on both sides of the ventilation lower, with which both ends of the valve plate 26 are engaged and guided.

In addition, a filter 32 is installed in the opening 31 on the back of the dust collection case 21.
A filter unit 34 consisting of a support frame 33 that supports the filter unit 34 is hermetically fitted.

Furthermore, the operating rod 36 of the motor start/stop switch 35 provided on the electric blower 13 is made to protrude from the electric chamber 12 into the dust collection case storage section 5, so that when the dust collection case 21 is fitted, the support frame 33 of the filter 32 is The end face presses the operating rod 36 to turn on the switch 35.

Further, a clamp 38 to which a clamp locking portion 9 is locked is provided at the front part of the upper surface 37 of the dust collection case 21, which covers the mounting opening 8 of the dust collection case storage section 5, and a clamp 38 is provided at the rear end. An engagement step portion 39 that is engaged with the projecting edge 10 is formed.

Next, the operation of this embodiment will be explained.

The dust collection case 21 is attached through the attachment opening 8 of the main body 1.

At this time, the locking step 29 on the front surface 22 of the dust collection case 21 engages with the locking protrusion 28 of the valve plate 26 that closes the ventilation lower with the tension spring 27, and the valve plate 26 is moved against the slope of the partition wall 6. 25, the ventilation lower opens and the suction opening 2 of the dust collection case 21 is opened.
Connects with 3.

At the same time, the support frame 3 of the filter 32 at the rear of the dust collection case 21
3 presses the operating rod 36 of the switch 35 of the electric blower 13 to enable energization.

Further, a retaining step portion 3 of the dust collection case 21 is attached to the locking protrusion 10 of the main body 1.
9 to lock the clamp 38 to the clamp locking portion 9.

At this time, the suction opening 23 of the dust collection case 21 is
The support frame 33 of the filter 32 is airtightly communicated with the air intake port 14 of the electric blower 13 via a gasket 34.

Then, hold the main body 1 on the surface to be cleaned, such as a floor, and press the operating lever 20.
When the brush 2 is pushed and moved and the electric blower 13 is driven at the same time, the rotary brush 2 is rotated, and the dust adhering to the surface to be cleaned is separated. The air is introduced into the dust collection case 21 from the opening 4 via the ventilation lower, the dust is captured by the filter 32 and deposited inside the dust collection case 21, and the air is discharged from the discharge port 15 through the electric blower 13.

Also, at this time, since the ventilation lower was provided with its center offset to the side opposite to the intake port 14 of the electrical connection chamber 12, the intake of the ventilation lower was provided to the intake port 1.
Air is taken in with an average strength from the entire length of the opening 4 facing the rotating brush 2 without being biased toward the 4 side.

Next, when taking out the dust collection case 21 from the main body 1, remove the clamp 38 from the clamp locking part 9, remove the engagement step part 39 from the locking protrusion 10, and pull up the dust collection case 21 from the main body 1. The operating rod 35 that was pressing the switch 35 of the blower 13 returns to its previous position and the switch 35 opens, and at the same time the valve plate 2
Since the locking step 29 of the dust collection case 21 is disengaged from the locking protrusion 28 of the dust collection case 28, the valve plate 26 is pulled by the tension spring 27 to close the ventilation lower, and when the dust collection case 21 is pulled up, the ventilation lower opens. The risk of getting your hand caught in the rotating brush 2 is prevented.

Next, the embodiment shown in FIG. 3 will be described.

In this case, the filter unit 34 fitted in the rear end opening 31 of the dust collection case 21 is inclined with respect to the width of the opening 31, and the distance between the filter unit 34 and the partition wall 11 is wide on the side of the intake port 14. It becomes narrower as the distance from the intake port 14 increases.

The operation of this embodiment will be explained.

Since the space facing the intake port 14 is wide, the intake air does not concentrate properly, and the filter 3 in other parts that are not located at the intake port 14 does not concentrate.
Air is also taken in from 2, expanding the intake area.

According to the present invention, the electric blower, which has a length in the axial direction, is housed in the electric chamber with the axial direction as the width direction, so that the vacuum cleaner main body does not become large. Although the air intake port is biased towards one side in the width direction of the main body, the ventilation hole provided in the rotary brush installation section in front of the dust collection case is connected to the length of the rotary brush. Since it is formed to be biased toward the opposite side of the intake port from the center of the direction, the intake air from the opening opened on the bottom surface of the rotating brush is not biased only toward the intake port side, and the air is drawn away from the entire length of the rotating brush. Air is taken in evenly, and there is no risk of dust remaining on the opposite side of the rotating brush air intake.

In addition, the distance between the electric chamber in which the intake port is formed biased toward the - side and the filter unit fitted in the dust collection case facing this is widened on the intake port side and gradually narrows as it moves away from the intake port. Since the intake air of the filter is not biased toward the intake port side and is taken in all over the filter even though the intake port is biased, the filter area can be expanded.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a vacuum cleaner showing an example of an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a partially cutaway plan view showing an embodiment of the same. 1...Vacuum cleaner body, 2...Rotary brush,
3...Rotary brush arrangement part, 4...Opening part, 5...Dust collection case storage part, 7...Vent hole, 12... ...Electric room, 13...Electric blower, 14...Intake port, 21...Dust collection case, 34...Filter unit.

Claims (2)

[Scope of utility model registration request] (1) A motorized chamber with a built-in electric blower with the axial direction as the width direction, and a rotating brush that is formed in front of this motorized chamber through a dust collection case storage section and is driven by the electric blower and faces the bottom opening. In the vacuum cleaner body, the vacuum cleaner body is provided with a rotary brush arrangement part that is mounted on a shaft, and an air intake port is formed in the electric chamber so as to be biased toward one side in the width direction of the main body, and the vacuum cleaner body is configured to be able to be inserted into and removed from the dust collection case storage part. The position of the ventilation port of the rotary brush installation part, which is attached and communicated through a dust collection case with a built-in filter unit, is formed to be biased toward the opposite side of the intake port from the center in the length direction of the rotary brush. A vacuum cleaner characterized by: (2) The space between the electric chamber having the intake hole and the filter unit fitted to the rear end of the dust collection case is wide on the intake port side and gradually narrows as it moves away from the intake port. A vacuum cleaner according to claim 1 of the utility model registration claim.