JPS62207420A - 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] [Industrial Application Field] The present invention relates to the dust collection section of a vacuum cleaner, and is improved so that the airtightness of the dust collection section can be improved and the amount of dust collected by the dust collection filter can be increased. The present invention relates to the structure of the dust collecting section.

[Conventional technology]

In the conventional device, as described in Utility Model Application Laid-Open No. 59-160044, a large number of ribs are arranged in the dust collection section to prevent the dust collection filter from adhering to the wall surface of the dust collection section. , if the height of the rib body is increased to increase the adsorption prevention effect,
When the case is a plastic molded product, problems arise such as the strength of the rib body itself and damage caused by the dust collection filter's rib body.

Further, when increasing the thickness of the rib body to improve strength and prevent damage to the dust collecting filter, there is a problem in that molding problems such as sink marks occur in the case.

[Problem that the invention seeks to solve]

An object of the present invention is to enhance the effect of preventing the dust collection filter from adhering to the wall surface of the dust collection section, thereby increasing the amount of dust collected with the same dust collection volume.

[Means to solve the problem]

The above object is achieved by arranging a rib body that prevents the dust collection filter from adhering to the dust collection section by arranging intersecting rib bodies in a substantially T-shape at the tip of the rib body.

[Effect]

By configuring the rib body in a roughly T-shape, there is more space where the dust collection filter does not attract, increasing the effective filter area for dust collection, and even with deep and thin ribs, the rib body The strength of the white meat can be ensured, and since the tip does not come into contact with the dust collection filter, damage to the filter can be prevented. Furthermore, since the rib body can be made thinner, molding problems such as sink marks caused by the rib body are less likely to occur on the outer surface of the dust collecting case.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 6, the suction body 1 is provided so that a part of the rotating brush 23 faces the opening 3 of the bottom plate 2.

The first floor brush 23 is rotated by receiving power from the electric blower 6 associated with the dust suction drive unit via the belt 5.

The main body case 7 has an operating handle 8 extending upward, has a dust collection space 44 in the center, and is tiltably attached to the mouthpiece 1 as shown by solid lines and chain lines in FIG. When not in use, it is constructed so that it can be placed upright on the mouthpiece 1 (as shown by the solid line).

In Figure 7, Wz is the bottom plate 2 when leaning upright.
indicates the distance between and the floor surface, and Wz indicates the distance when in use.

The mouthpiece body 1 has a switching knob 10 on the outside. A panpani 11 that prevents damage to furniture, a pedal 12 that is used when locking the body case 7 onto the mouthpiece 1, and the body case 7
A pace frame 13 that pivotally supports the is provided.

This switching knob 10 is a knob that adjusts the distance between the bottom plate 2 of the suction body 1 and the surface to be cleaned, and the height setting cam 14 is
As shown in Figures 56 and 8, a knob position spring part 15 is provided which is configured to have an elastic force by providing a notch in a part of one cylindrical side surface so that the parts are integrally connected and fixed at any rotational position. This is what is being done. As shown in FIG. 9, the height setting cam 14 is divided into approximately equal parts in the circumferential direction, and includes planes X, Y, and Z having steps in the direction of the knob axis, and each plane is selectively connected to the front wheel axle 16. come into contact with

The front wheel axle 16 has a crankshaft shape as shown in FIG. 9, and both ends 17 of the front wheel axle 16 are rotatably supported by the mouthpiece 1. A front axle 18 for height adjustment is provided at both ends 17.
is installed. Furthermore, as shown in Figure 8,
An axle push-out lever 19 is provided at the intermediate portion of the lever such that one end thereof is pivotally connected to the suction body 1 and the other end thereof is engaged with the main body case 7.
It is configured to come into contact with a part of the

The front end of the mouthpiece body 1 is equipped with a driving pulley 20, a brush brush 21 with bristles flocked in a spiral shape on the outer periphery, and three brush brushes in the longitudinal direction.
There is a rotating brush 23 provided with protrusions 22 which are divided and similarly arranged in a B-line shape.

A total of six protrusions 22 are provided on the front and back sides of the rotating brush 23, and the brush brush 21 has a spiral angle θ between the brushes as shown in FIG. 10 on the surface where the protrusions 22 are not provided.
The 0-rotation brush 23, which is constructed so that the angle is approximately constant, needs to be relatively thick because of the flocking, and for this purpose, it is made of plastic injection molded with a foaming agent mixed therein. The one-rotation brush 23 has a hollow interior and is supported by a bearing 25 through a fixed shaft 24. Bearing covers 26 are disposed at both ends of the fixed shaft 24, and a vibration-proof cap made of an elastic material is provided. Through 27,
It is detachably attached to the mouthpiece body 1. The anti-vibration cap 27 is configured to insulate vibrations from the rotating brush 23 to the suction body 1, and has a lip portion 28 on the inner periphery to prevent dust from entering the bearing 25. .

Further, in order to eliminate play in the axial direction of the rotating brush 23, a thrust spring 29 is provided between the bearing 25 and the bearing contact surface of the rotating brush 23.

A rotating shaft 30 provided integrally with the body case 7 is rotatably supported at the rear end of the suction body 1 by a semi-circular bearing rib 31 provided on the suction body 1. There is a base frame 13 having a semi-circular bearing portion 32 . here,
The semi-circular bearing rib 31 is rib-shaped because it is provided integrally with the suction body 1, but if it is semi-circular, it can be made as a separate part from the suction body 1 and configured without being rib-shaped. be. As shown in FIG. 11, the base frame 13 has a substantially U-shape when viewed from the bottom. A rear wheel 33 is provided near the bearing portion 32, and a seventh wheel is provided near one of the bearing portions 32. In order to lock the main body case 7 at the positions indicated by solid lines and chain lines in the figure, a lock arm 35 is provided which abuts on a locking portion 34 provided on the main body case 7. lock arm 3
5 has a cylindrical portion 36, and a helical biasing spring 37 is provided to bias the cylindrical portion 36 in the direction of the locking portion 34 using the cylindrical portion 36 as a rotation axis. Further, the lock arm 35 is integrally provided with a flat portion 38 that comes into contact with the lower end of the pedal 12 when the pedal 12 is depressed.
The lock arm 35 is disengaged from the locking portion 34 by depressing the pedal 12.

Here, the pedal 12 is connected to a support shaft 39 provided on the mouthpiece body 1.
It is attached with the rotation center at the center of rotation, and when it is not pressed down, the lower end is brought into contact with the flat part 38 due to the urging force of the urging spring 37, and the lower end is positioned. Further, the base frame 13 is provided with a belt cover 40 on the side on which the belt 5 is suspended for safety.

The aforementioned dust flow path within the suction body 1 communicates with the main body duct 42 through the suction duct 41 and is connected to the main body case 7 .

This main body case 7 is roughly divided into three spaces, f
T! Dynamic blower room 43. It consists of a dust collection section space 44 and a cord reel chamber 45.

The electric blower room 43 includes an electric blower 6 and an exhaust port 46.
, an intake duct 48 having a suction port 47 that communicates with the dust collection space 44, and an inlet 50 of an exhaust duct 49 that communicates with the cord reel chamber 45 are provided. Extended axle push lever 19
A stepped portion 51 is provided to engage with. Further, a reflection plate 54 having a lamp 52 for illumination and its lamp holder 53 is attached to the intake duct 48, and the light is irradiated to the outside through a lamp window 55 provided on the wall of the electric blower chamber 43.

In addition, in the dust collecting space 43, a main body duct 4 is provided along the back side.
The opening 56 of the main body duct 42 is divided into two, and one opening 56a has an airtight packing 57.
Through the box-shaped part called filter base 58,
It is attached to the main body case 7. Further, the other opening 56b is normally closed by a flow path cover 80 having an arcuate gasket 79 that can be opened and closed. The opening 56 has a tapered portion 81 that can be fitted with a joint of an attached hose (not shown). When using the attached hose, open the channel cover 80 and open the joint. It is configured to fit into the tapered portion 81 and to close the flow path from the mouthpiece body 1 on the side surface of the joint portion. The filter 59, which collects dust, is made of a material such as paper or cloth, and is detachably attached to the filter base 58 by engaging the opening portion 60 with a holder 61. Air-tightness between the dust collection space 43 and the outside is achieved by a dust collection gasket 62 provided around the airtight rib 64 provided on the front lid 63. The dust part space 9 is configured to have a negative pressure. The front price is ¥63.

In addition to informing you when it is time to dispose of the dust in the filter 59,
In order to prevent the temperature from rising due to insufficient cooling of the electric blower 6 when the air volume decreases, a dust meter 65 with a function of passing a bypass flow from the outside is provided, and the dust meter 65 is detachably locked to the main body case 7 at the upper end. A clamp 66 is provided for this purpose.

Further, the front lid 63 is provided with $T-shaped rib members 82 on both inner side walls. This T-shaped rib body 82 has a height that projects from the side edge of the front lid 63.

It has a sloped part 83 at the tip, and when the front cover 63 is attached to the main body case 7, the inner side end 84 of the main body case 7 and the base of this slope part 83 fit together, so that the main body case 7 and the front cover Even if the 63 is deformed or warped, it can be corrected and the airtight surface maintained constant.

Further, the cord reel chamber 45 is provided with a cord reel 68 for winding up the power cord 67, a power switch 69, a cord reel button 70, and an outlet lower 1 of the exhaust duct 49. The power transmission line 72 is connected to the exhaust duct 1 through the interior of the exhaust duct 49 . Here, the exhaust duct 49 is closed by the main body case 7 and the lid 73, and constitutes a duct.

The cord reel chamber 45 is composed of a main body case 7 and a reel lid 74. A cord reel 68 is attached to the reel lid 74, and in the event that the power cord 67 is broken and needs to be replaced, it can be piece 75 and a ring-shaped contact 7 provided on a reel support stand 76 disposed on the main case 7 side.
It has a structure that can be separated from the contact 77, and can be replaced without touching the power transmission line 72 connected to the contact 77. At the tip of the handle 8 attached to the upper end of the cord reel chamber 45, there is a
A handle cap 78 made of soft material is provided to cushion rlit strikes.

Next, the use of the applied shape removing machine according to this embodiment configured as described above will be explained.

In use, the power cord 67 is pulled out from the cord reel 68, connected to a power source, and the pedal 12 at the rear of the mouthpiece 1 is stepped on to tilt the main body case 7 from above the mouthpiece 1.

Next, when the power switch 69 is turned on, the electric blower 6
is operated, and the rotating brush 4 is rotated via the belt 5 along with the suction by the blower.

At this time, if the position of the switching knob 10 is set so that the position X of the height setting cam 14 comes into contact with the front axle 16, the amount of protrusion of the height adjustment front axle 18 from the bottom plate 2 is the minimum (the position indicated by the solid line in Figure 8), which is optimal for cleaning carpets with short piles.

In addition, if the carpet has a long pile or a medium pile, the height adjustment front axle 18 can be adjusted by turning the switching knob 10 to the Z or Y position of the height setting cam 14. Since the amount of protrusion from the bottom plate 2 changes, it is possible to clean according to the difference in the pile of the carpet.

Here, a case in which the switching knob 10 is turned will be explained. That is, when the main body case 7 is placed against the suction body 1, the stepped portion 51 provided in a part of the main body case 7 due to its rotation.
pushes down one end of the axle push-out lever 19 that protrudes from the suction body 1, and by using this, the front wheel axle 1 for height adjustment is
The positions of both ends 17 of 6 are at the maximum amount of protrusion of the height adjustment front axle 18, or slightly more than that.

Push down both ends 17 of the front wheel axle 16. Then.

The height setting cam 14 and 1 both ends 17 are separated, and the switching knob 10
No other force is applied to turn the .

It can be easily turned to the desired position.

After that, when the main body case 7 is tilted again.

The stepped portion 51 similarly rotates to free the axle push lever 19 and bring the height setting cam 14 into contact with both ends 17 of the front axle 16.

When cleaning is performed in the above-described manner, airflow containing a large amount of dust passes through the opening 3 of the bottom plate 2 of the suction body 1 through the suction duct 41 and the main body duct 42.

The air flows into the filter 59 and is separated into clean air and dust by this filter 59, and only the clean air is
From the suction port 47 to the intake duct 48. Then, it passes through the electric blower 6, and part of it is discharged outside the machine from the exhaust port 46, while another part flows into the exhaust duct 49 from the inlet 50 and is introduced into the cord reel chamber 45. This exhaust is connected to the power cord 67, the contact piece 75 of the cord reel 68, and the
After cooling the contacts 77 of the support joints 76, etc., they are discharged outside the machine. At this time, the exhaust duct 49 is relatively long,
Exhaust duct 49 that can change the sound deadening effect and has a narrow exhaust
It is also effective for noise reduction to be released from the cord reel chamber 45 to the large cord reel chamber 45.

According to this embodiment, since the rib body 82 that prevents the filter 59 from adhering to the front lid 63 is configured in a substantially T-shape,
The adsorption prevention effect of the filter 59 can be enhanced.

That is, as shown in FIGS. 4 and 5, in the conventional rib body 82' that prevents adsorption (FIG. 5 has a boss portion 90 at the end of the rib body), the filter 59 is attached to the side surface of the rib body 82'. Even if adsorption may occur, the area where the filter can prevent adsorption is the space shown in the diagram.
In this embodiment, as shown in FIG. 3, 1. Since the rib body 82 is configured in a substantially T-shape, a space 85 is formed, and the effect of preventing the filter 59 from adsorption can be enhanced compared to the conventional structure. This increases the effective area of the filter 59 through which the airflow passes, and has the great effect of ensuring a larger actual weight with the same dust collection volume. Furthermore, in the conventional example.

Since the tip 86 of the rib body 82' comes into contact with the filter 59, if the plate thickness is made relatively thick and the tip 86 is not rounded, there is a risk that the filter 59 will be damaged by the expanding force of the intake air. in this case.

A sink mark occurs on the outer surface of the front lid 63 due to the rib body 82'.
Although this was a problem in terms of appearance, in this embodiment, the spreading force due to intake air is received by the flat part 87 of the rib body 82, so only a smaller force is applied to the tip part 88 compared to the conventional example. , even if the rib body 82 is made thinner, the filter 59
It also has the effect of preventing damage to the front cover and preventing sink marks from appearing on the front cover. Furthermore, in this embodiment, since the flat part 87 of the rib body 82 is provided near the bent part 89 of the front cover 63, even if the plate thickness of the flat part 87 of the rib body 82 is increased somewhat, This makes sink marks on the surface less noticeable.

In addition, the rib body 82 is required to have strength because it protrudes from the side end of the front cover 63 for the purpose of correcting the alignment with the main body cover 7. However, by making the rib body 82 approximately T-shaped, the rib body This has the effect of significantly improving the strength of 82 itself.

〔Effect of the invention〕

According to the present invention, by configuring the rib body of the dust collection part in a substantially T-shape, it is possible to improve the effect of preventing the dust collection filter from adhering to the wall surface of the dust collection part.

This has the effect of increasing the effective ventilation area of the dust collection filter and increasing the amount of dust collected. In addition, in order to correct deformation, warpage, etc. of the case that makes up the dust collection part and combine it,
Although the rib body is required to protrude beyond the side edge of the case, in this case, by forming the rib body into a substantially T-shape, there is an effect that the rib body itself can have sufficient strength.

[Brief explanation of drawings]

FIG. 1 is a front view of a front lid 63 seen from the inside showing one embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a rib body 82 according to this embodiment. Schematic diagram showing 4th and 5th
The figure is a schematic diagram showing a conventional example of a rib body 82', and FIG.
A vertical cross-sectional view of an applied type vacuum cleaner showing an embodiment of the present invention, FIG. 7 is an explanatory diagram of the inclination of the main body case 7 and the distance relationship between the bottom surface of the suction mouth and the surface to be cleaned, and FIG. FIG. 9 is an enlarged cross-sectional view of the main parts; FIG. 9 is a perspective view showing the shape and operating state of the height adjusting axle and the axle pushing lever;
FIG. 10 is a partially opened longitudinal sectional view of the rotating brush 23, the first
1 is a bottom view seen from the bottom, FIG. 12 is a vertical sectional view showing a part of the exhaust duct I, and FIG. 13 is a perspective view of the applied type vacuum cleaner of this embodiment. 59... Filter, 44... Dust collection section space, 7...
- Main body case, 63... Front lid, 82... Rib body (approximately T-shaped).

Claims (1)

[Claims] 1. The dust collecting section having a filter inside is constituted by a pair of cases, and a rib body is provided on the inner side wall of the case, and the rib body is approximately T-shaped, that is, continuous with the side wall. A vacuum cleaner comprising a rib body and another rib body provided to intersect with the end of the rib body. 2. In claim 1, one case is:
The rib body is configured to protrude from the side edge of the case, and an inclined portion is provided at the end of the rib body that connects to the side wall so that the rib body engages with the inner side edge of the other case when the cases are combined. A vacuum cleaner characterized by being provided with.