JPS6330007B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a vacuum cleaner, particularly an electric vacuum cleaner in which a disposable bag filter is removably attached to the inside of a dust collection case covered with a front lid that can be opened and closed. The present invention relates to an improvement in a mechanism capable of opening and closing the dust suction port of the disposable bag filter in a vacuum cleaner.

[Prior Art] A vacuum cleaner is well known in which a disposable bag filter is removably attached to a dust collection case in order to dispose of the dust or dirt collected by the vacuum cleaner without staining the hands, and is easy to use. It is widely used because it is superior and hygienic.

[Problems to be Solved by the Invention] However, with conventional disposable bag filters, dust often leaks out from the dust inlet when discarding the dust accumulated inside the filter, staining the user's hands or the surrounding area. There was a problem with how easy it was.

In the past, in order to solve this problem, mechanisms were devised to close the dust inlet during dust disposal, but in the past, such dust closure was performed manually or required complicated Because of its structure, it had various problems such as not being able to operate reliably at all times.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide an improved vacuum cleaner that has an extremely simple structure and can close the dust inlet port when disposing of dust as necessary. It's about doing.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a disposable bag filter installed inside the dust collection case.
A bag-like filter is formed, the opening having a dust inlet in the center and a rotatably provided shutter for opening and closing the dust inlet, and the bag-shaped filter having one end fixed to the opening. A cap support wall surface provided with at least one convex pin is formed on the side edge of the case on the front opening side of the dust collection case, and the cap of the disposable bag filter engages the convex pin receiving hole with the convex pin. The circumferential side of the opening sheet is sandwiched and supported between the opening sheet support wall surface and the front lid so that the opening sheet is positioned in the fitted state.

According to the present invention, an arm supporting wall surface is formed above the opening supporting side surface of the dust collection case, and an arm for rotating the shutter to close is rotatably attached to the arm supporting wall surface. It is being

Further, according to the present invention, the latch button provided on the dust collection case so as to be vertically movable releases the latch engagement between the dust collection case and the front cover. The lower end of said latch button is correspondingly arranged to close and pivot the shutter, so that the latch button closes the dust inlet of the disposable bag filter via the shutter as required.

[Function] Therefore, according to the present invention, the disposable bag filter itself has a rotatable shutter on its mouthpiece that can open and close the dust intake port, and when it is attached to the dust collection case, the shutter is rotated. is attached with the dust intake port open, and when disposing of dust, the arm provided on the dust collection case side can be rotated to close the shutter very easily, and as a result, the front cover can be opened from the dust collection case using the latch button. When this happens, the dust intake port of the filter is already reliably closed by the shutter, making it possible to perform dust treatment without any dust leaking to the outside.

[Examples] The present invention will be explained below with reference to illustrated examples.
1 is a main body case with an electric blower 2 inside; 3 is a dust collection case detachably attached to the front part of the main case 1 by a locking member 4; 5 is formed at the upper part of the front opening 6 of this dust collection case. A plurality of convex pins 7 are formed on this support wall.

Reference numeral 9 denotes an arm whose one end is rotatably attached to a boss 10 above the support wall 5 of the dust collection case 3 with a screw 11, and whose other end is provided with a shutter pressing part 12. energized. 15 is a front lid that covers the front opening 6 of the dust collection case 3 so that it can be opened and closed, and has a hose connection port 16 in the center.
have.

17 is a front lid cover fixed to the inside of the front lid 15, and the suction port 1 that matches the hose connection port 16 is located in the center.
8, and a gasket 19 is attached to the outer periphery, and this gasket seals the periphery of the front opening 6. Reference numeral 20 denotes a plurality of hollow bosses formed on the front lid cover 17, into which the convex pin 7 is engaged.

21 is a stopper whose lower end engaging part 22 engages with a protrusion 24 formed on the lower surface of the dust collection case 3;
It is biased by a compression spring 23 and supported between the front lid cover 17 and the front lid cover 17 so as to be vertically movable.

28 has an opening 29 at one end and a closed surface 3 at the other end.
0, and is installed in the dust collection case 3 so that the opening 29 side is joined to the back side of the support wall 5 formed in the front opening 6.

Reference numeral 35 designates a disposable bag filter, which is rotatably attached to the opening paper 39 having a dust suction port 36 in the center, a convex pin receiving hole 38 on the periphery in which the convex pin 7 engages, and an eyelet 40 to the opening paper. , dust inlet 3
a shutter 43 that opens and closes the dust inlet 6; a bag body 47 whose opening end is glued to the flap 39; a bag body 47 made of a filter material such as paper; The other end opens into the paper body 47, and the guide tube 48 is folded into an x-shape when viewed from the front and is made of a material with a lower air permeability than the paper body 47. The convex pin 7 is placed on the convex pin receiving hole 3.
8 is inserted and supported.

49 is a check valve held between the hose connection port 16 of the front lid 15 and the suction port 18 of the front lid cover 17; 51 is a sealing gasket attached around the suction port 18 of the front lid cover 17; It is joined to the periphery of the dust inlet 36 of the paper 39.

Reference numeral 53 denotes a hinge body attached to the upper front surface of the dust collecting case 3, which rotatably supports the front lid 15 on the dust collecting case 3 by means of a pivot 55 and a twist spring 54. 56 is a handle cover having a support hole 58 for supporting a latch button 59 which will be described later; 59 is a latch button that is attached to the front upper part of the dust collection case 3 and can be moved up and down; The arm pressing piece 61 located below the tip of the pressing part 60 is inserted into a support hole 62 formed in the dust collection case 3, and its tip is connected to one side of the arm 9, the pressing part 60, and the stopper 21. A stopper 63 is further formed facing each other with a gap larger than the opposing gap. 64 is a main filter installed in the rear part of the dust collection case 3.

Next, the operation of the embodiment of the present invention configured as described above will be explained.

When a hose (not shown) is inserted into the hose connection port 16 of the front lid 15, the check valve 49 is pushed open by the end surface of the hose, and the check valve 49 is folded into an x-shape of the bag filter 35. Slightly spread out the guide tube 48 that is in place.

Next, when the electric blower 2 is operated, the air flow containing dust passes through the hose and enters the bag body 47 while further expanding the guide cylinder 48, and captures dust while inflating the body bag 47 with its suction pressure.

As a result, only clean air passes through the prefilter 28.
and the main body case 1 through the main filter 64.
go inside, pass through the electric blower 2, and enter the main case 1.
is discharged to the outside from an exhaust port (not shown).

When the body bag 47 is full of dust, the guide tube 48 is closed and the hose no longer sucks dust, but at this time, since the guide tube 48 is made of a material with less air permeability than the bag 47, As the air flow crosses this guide tube, a small amount of clean air enters the electric blower 2, so that the electric blower 2 does not become abnormally overheated.

When this state is reached, stop the operation of the electric blower 2, press the latch button 59, and the pressing part 6
0, the stopper 21 is lowered, and the engaging part 22 is connected to the protrusion 2.
4, the front cover 15 opens the front opening 6 of the dust collecting case 3 due to the biasing force of the pivot 55 attached to the hinge body 53 and the torsion spring 54.

When the latch button 59 is further pushed in from this state until the lower end of the stopper 63 touches the lower surface of the hinge body 53, the arm pressing piece 61 rotates the arm 9 downward while pressing the upper side wall of the arm 9.
The other end shutter pressing portion 12 is the shutter 43
is rotated to close the dust intake port 36 of the opening paper 39.

In this state, attach the bag filter 35 to the dust collection case 3.
You can take it out and throw it in a trash can.

When taking out the bag filter 35 from inside the dust collection case 3, the dust inlet 36 of the cover 39 is connected to the shutter 4.
3, so the dust inside will not spill out and stain the floor etc. when you carry it around.

Next, when setting a new bag filter 35 in the dust collection case 3, as shown in FIG.
The convex pin receiving hole 38 of the opening paper 39 is inserted into the convex pin 7 provided in the
is placed on the support wall 5 so as to be inserted therethrough, and then the open front cover 15 is rotated downward to engage the stopper 21 and the engaging portion 22. At this time, the convex pin 7 is inserted into the hollow boss 20 to securely support the opening 39 on the support wall 5, and the gasket 51 provided on the front lid cover 17 is inserted into the dust inlet 39 of the opening 39. Securely seal around the area.

In the above embodiment, the shutter 43 is operated via the arm 9, but
The shutter pressing piece 61 of the latch button 59 may be used to directly operate the shutter.

[Effects of the Invention] As described above, in this invention, the shutter provided on the bag filter is operated by the latch button that opens and closes the front lid covering the front opening of the dust collection case. The number of components is reduced, the structure is simplified, and since the shutter closes the dust inlet when the front cover is opened, dust disposal can be done very efficiently.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a side view of the entire vacuum cleaner, Figure 2 is a vertical sectional view of the dust collection case, Figure 3 is a view of the dust collection case from the front with the front cover removed, and Figure 4 is the shutter. FIG. 5 is a perspective view showing the bag filter attached to the dust collection case, and FIG. 6 is a perspective view of the bag filter. In the figure, 3 is a dust collection case, 6 is a front opening, 9 is an arm, 12 is a pusher part, 15 is a front lid, 2
1 is a stopper, 22 is a locking portion, 24 is a protrusion, 35 is a bag filter, 36 is a dust inlet, 39 is a slip, 4
3 is a shutter, 47 is a bag body, 59 is a latch button, 60 is a pressing portion, and 61 is an arm pressing piece.

Claims (1)

[Scope of Claims] 1. A dust collection case 3 into which a disposable bag filter 35 is detachably attached, a front lid 15 that covers the front opening 6 of the dust collection case 3 in an openable and closable manner, and the dust collection case 3. 3 and a latch button 59 that can be pressed freely on the dust collection case 3 to release the latch connection between the dust collection case 3 and the front lid 15. The front surface of the dust collection case 3 consists of an opening 39 on which a shutter 43 for opening and closing the dust intake port 36 is rotatably provided, and a bag-shaped filter 47 with one end fixed to the opening 39. A support wall surface 5 provided with at least one convex pin 7 is formed on the side edge of the case on the side of the opening 6, and the cap 39 of the disposable bag filter 35 connects the convex pin receiving hole 38 with the convex pin 7. The circumferential side of the cover 39 is sandwiched and supported between the support wall surface 5 and the front cover 15 so as to be positioned in the engaged state, and the shutter 43 is located above the support wall surface 5 of the dust collection case 3. An electric vacuum cleaner characterized in that one end of the arm 9 for closing and rotating the shutter 43 is rotatably attached, and the latch button 59 is arranged corresponding to the upper surface of the arm 9 for closing and rotating the shutter 43. .