JPS6332447B2 - - 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 for easily attaching the disposable bag filter to 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 reliably close the dust intake port during dust disposal. It is in.

[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.
The dust inlet is provided with a dust inlet in the center and is formed by a cover which is rotatably provided with a shutter for opening and closing the dust inlet, and a bag-shaped filter with one end of the opening fixed to the cover; A cap supporting wall surface having 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 connects 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 an engaged state.

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

The arm has a shutter pressing part on the lower surface of the other end on the rotating side to push down the shutter in the closing direction, and this arm is always supported by a spring so that the other end is pressed against the inner circumferential surface of the front opening of the dust collection case. It is biased upward so that it is blocked by.

[Function] Therefore, according to the present invention, the disposable bag filter itself has a rotatable shutter on its opening that can open and close the dust intake port, and when the bag is attached to the dust collection case, the shutter is rotatable. The shutter is installed 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. In some cases, the dust intake port of the filter is already reliably closed with a shutter, making it possible to perform dust treatment without leaking the dust to the outside.

[Examples] The present invention will be explained below with reference to illustrated examples.
Reference numeral 1 denotes a main body case in which an electric blower 2 is installed, 3 a dust collection case detachably attached to the front part of the main case 1 by means of a locking member 4, and 5 a dust collection case attached to the upper part of the front opening 6 of the dust collection case. A plurality of convex pins 7 are formed on the formed opening paper supporting wall surface. Reference numeral 8 denotes an arm support wall surface formed on the upper part of the opening paper support wall surface 5 one step higher than the opening paper support wall surface; 9, one end is rotatably attached to a boss 10 formed on the arm support wall surface with a screw 11; The arm has a shutter pressing part 12 on the lower surface of the other end and a shutter stopper part 13 on the upper side wall, and the other end side is urged upward by a torsion spring 14 and is always located on the arm support wall surface 8.
A front lid 15 covers the front opening 6 of the dust collecting case 3 in an openable and closable manner, and has an inlet 16 in the center.

Reference numeral 17 denotes an inner lid fixed to the inside of the front lid 15, which has an opening 18 in the center that matches the inlet port 16, and a gasket 19 attached to the outer periphery. The surrounding area is sealed. Reference numeral 20 designates a plurality of hollow bosses formed on the inner lid 17, into which the convex pin 7 is engaged. 21 has a lower end engaging portion 22 that engages with a protrusion 24 formed in a reinforcing recess 23 formed on the lower surface of the dust collection case 3, and is supported vertically movably between the front lid 15 and the inner lid 17. The stopper has a notch 66 at its upper end.

25 is an engagement portion 22 of the stopper 21 in the recess 23;
A notch 26 is provided in the center of the barrier wall so that the engagement portion 22 of the stopper 21 can be released from the bottom side of the dust collection case 3. 27 is a front wheel attached to the recess 23; 28 is a prefilter container having an opening 29 at one end and a closed surface 30 at the other end; the diameter increases from the closed surface 30 side toward the opening 29 side; A side wall 31 is formed, a net 33 is fixed inside a through hole 32 formed in this side wall, and the opening 29 is installed inside the dust collection case 3 so as to be joined to the back side of the front opening 6.

Reference numeral 34 designates a plurality of guide ribs formed on the inner wall surface of the prefilter container 28, the open end of which coincides with the back side of the convex pin 7.

Reference numeral 35 denotes a cap 39 having a dust inlet 36 in the center, a guide groove 37 in the upper right corner for movement of the shutter pressing portion 12 of the arm 9, and a convex pin receiving hole 38 on the periphery in which the convex pin 7 engages. , a shutter 43 rotatably attached to this mouthpiece by an eyelet 40, and comprising a stopper part 41 on the left side of the eyelet 40 and a lid part 42 for opening and closing the dust intake port 36 on the right center part; An opening 44 at one end is glued to the opening 39, and the vertical cross-sectional shape is a front chamber 45.
A bag-shaped filter 47 folded so as to be divided into a rear chamber 46 and a rear chamber 46 , one end of which is glued to a flap 39 so as to cover the dust inlet 36 , and the other end of which is a bag-shaped filter 47 which is attached to the rear chamber 46 . This disposable bag filter is folded into an x-shape when viewed from the front so as to be located inside the bag, and is made of a material with an air permeability equal to or less than that of the bag-shaped filter 47. Paper support wall surface 5
The convex pin receiving hole 38 of the opening paper 39 is inserted into and supported by the convex pin 7 .

Reference numeral 49 denotes a check valve which is held between the inlet 16 of the front cover 15 and the opening 18 of the inner cover 17, and has a plurality of tongue pieces 50 formed by cutting radially from the center.

Reference numeral 51 denotes a gasket attached around the opening 18 of the inner lid 17 and having a ring-shaped seal portion 52 in the center, and the seal portion 52 is joined to the periphery of the dust inlet 36 of the flap 39. Reference numerals 53 and 54 denote a hinge body A and a hinge body B attached to the upper front surface of the dust collection case 3, and the front lid 15 is rotatably supported on the dust collection case 3 by a twisting spring (not shown). The hinge body A53 has a pair of holding parts 55 that hold attachment pieces 57 of a handle cover 56, which will be described later.

56 is a support hole 5 which has a pair of mounting pieces 57 at the lower end and supports a latch button 59 which will be described later.
8, which is disposed on the upper part of the dust collection case 3, and the mounting piece 57 is held by one touch on the hinge body A53.

Reference numeral 59 denotes a vertically movable latch button attached to the front upper part of the dust collection case 3. A pressing part 60 at one end is located above the stopper 21, and an arm pressing piece 61 is located below the tip of the pressing part 60. is inserted into a latch button support hole 62 formed above the arm support wall surface 8 of 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.
It has a larger predetermined gap and also has a stopper 6.
3 is formed.

64 is a main filter installed in the rear part of the dust collection case 3, and 65 is a hose for transporting dust into the dust collection case 3.

Next, the operation of the embodiment of the present invention configured as described above will be explained. When the hose 65 is inserted into the suction port 16 of the front cover 15, the check valve 49 is pushed open by the end surface of the hose 65, and the tongue piece 50 of the check valve 49 is inserted into the x of the disposable bag filter 35.
The guide tube 48, which has been folded into a shape, is pushed out. In this embodiment, the check valve 49 is connected to the guide cylinder 4.
Although the configuration is such that hose 8 is pushed out, hose 6
5 may be formed directly or on the inner lid 17 with a protrusion or the like that pushes out the guide tube 48. Next, electric blower 2
When the engine is operated, dust enters the rear chamber 46 of the bag filter 47 through the hose 65 and further expands the guide tube 48 which has been pushed open. It is captured with its entire body swollen. As a result, only clean air enters the main body case 1 through the prefilter container 28 and the main filter 64, passes through the electric blower 2, and is discharged to the outside from the exhaust port (not shown) of the main body case 1.

When the bag filter 47 is full of dust, the guide cylinder 48 is closed and the hose 65 no longer sucks dust. At this time, the guide tube 48 is connected to the bag filter 4.
Because it is made of a material with less breathability than 7,
Since a small amount of clean air enters the electric blower 2, 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 lid 15 opens the front opening 6 of the dust collecting case 3 by means of a twist spring (not shown) attached to the hinge body A53 and the hinge body B54. From this state, when the latch button 59 is further pushed in until the lower end of the stopper 63 touches the lower surface of the hinge body A53, the arm pressing piece 61
The arm 9 is rotated downward while pushing the upper side wall of the arm 9, and the shutter pressing portion 12 at the other end rotates the shutter 43 to close the dust intake port 36 of the flap 39. At this time, the shutter pressing portion 12
In order to move the guide groove 37 provided in the opening paper 39,
Even if the opening paper 39 should float forward, the shutter 43 can be reliably rotated without colliding with the opening paper 39. Furthermore, since the shutter 43 is formed with a stopper part 41, this stopper part 41 is attached to the shutter stopper part 1 of the arm 9.
3, the shutter 43 will not overrun.

Since the arm 9 is biased by a spring 14, the biasing force of the spring 14 is used to
The latch button 59 also reliably returns to its original position after the pressing force is removed.

In this state, the disposable bag filter 35 may be taken out from the dust collection case 3 and disposed of in a trash can or the like.
When the disposable bag filter 35 is taken out from inside the dust collection case 3, the dust suction port 36 of the opening paper 39 is closed by the shutter 43, so that the dust inside does not spill out and stain the floor etc. when carried.

Next, when setting a new disposable bag filter 35 in the dust collection case 3, as shown in FIG. Then, the opened front cover 15 is rotated downward to engage the stopper 21 and the engaging portion 22. At this time, the hollow boss 20 formed on the inner lid 17 first enters the front opening 6 of the dust collecting case 3, so the engaging portion 22 reliably engages with the protrusion 25.

Further, the convex pin 7 is inserted into the hollow boss 20 to securely attach the opening sheet 39 to the opening sheet supporting wall surface 5. Further, the gasket 51 provided on the inner lid 17 reliably seals the area around the dust inlet 36 of the flap 39.

Furthermore, since a plurality of guide ribs are formed on the inner peripheral wall of the prefilter container 28, the bag filter 4
A gap is formed between the bag filter 7 and the net 33, so that the air permeability of the bag filter 47 is not inhibited.

Furthermore, as shown in FIG.
Since the front cover 15 can be opened by operating from the bottom side of the dust collecting case 3, the front cover 15 can be opened as appropriate without using the latch button 59.

[Effects of the Invention] As described above, in the present invention, an opening support wall surface and an arm support wall surface are formed in the front opening of the dust collection case, and an arm support wall surface is formed on the upper part of the opening support wall surface, and a dust suction port and this dust suction port are formed on the opening support wall surface. A disposable bag filter having a shutter that opens and closes is supported, and one end of an arm for closing and rotating the shutter is rotatably attached to the arm support wall surface, and this arm is biased with a spring and the other end is Since the arm is made to abut against the edge of the front opening, upward movement of the arm is reliably prevented and the arm can be held in a fixed position. In addition, since the arm is supported on the arm support wall surface, the disposable bag filter can be attached and removed smoothly without getting in the way when attaching or pulling out the disposable bag filter. That is,
The arm is always urged upward by a spring so that it is against the inner circumferential surface of the front opening of the dust collection case, so when the disposable bag filter is attached,
The arm is retracted from the filter passage area and does not impede the mounting action in any way.

[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 before dust is sucked in, Figure 3 is a vertical sectional view of the dust collection case after dust is sucked, and Figure 4 is the hose. Figure 5 is a longitudinal cross-sectional view of the main parts when inserted, Figure 5 is a front view of the dust collection case with the front cover removed, Figure 6 is a front view of the dust collection case when the shutter is closed, Figure 7 The figure is a front view of the dust collection case, Figure 8 is a perspective view showing the state in which the disposable bag filter is attached to the dust collection case, Figure 9 is a perspective view showing the state in which the disposable bag filter is pulled out from the dust collection case, Figure 10 is a perspective view of the disposable bag filter, Figure 11 is a perspective view of the guide tube installed in the disposable bag filter, Figure 12 is a perspective view of the pre-filter container, and Figure 13 is a front view of the dust collection case. 14 is a diagram showing the state in which the front cover is opened by hand, FIG. 15 is a diagram showing the attachment relationship between the handle cover and the hinge body, and 16th
The figure is a perspective view of the arm. In the figure, 3 is the dust collection case, 5 is the opening support wall, and 6
8 is a front opening, 8 is an arm support wall surface, 9 is an arm, 14 is a torsion spring, 35 is a disposable bag filter, 36 is a dust inlet, 39 is a mouthpiece, and 43 is a shutter.

Claims (1)

[Scope of Claims] 1. The disposable bag includes a dust collection case 3 in which a disposable bag filter 35 is detachably attached, and a front lid 15 that covers the front opening 6 of the dust collection case 3 in an openable and closable manner. The bag filter 35 has an opening 39 provided with a dust inlet 36 in the center and a rotatably provided shutter 43 for opening and closing the dust inlet 36, and an opening at one end fixed to the opening 39. A bag-shaped filter 47 is formed on the side edge of the case on the front opening 6 side of the dust collection case 3, and an opening support wall surface 5 is formed with at least one convex pin 7, and the disposable bag filter The circumferential side of the opening sheet 39 is sandwiched and supported between the opening sheet support wall surface 5 and the front lid 15 so that the opening sheet 39 of No. 35 is positioned with its convex pin receiving hole 38 engaged with the convex pin 7. An arm support wall surface 8 is formed in the dust collection case 3 above the opening paper support wall surface 5, and one end of an arm 9 for closing and rotating the shutter 43 is rotatably attached to the arm support wall surface 8. The arm 9 has a shutter pressing portion 12 on the lower surface of the other end for rotating the shutter 43 in the closing direction.
and the arm 9 is urged upward by a spring 14 so that the other end side is pressed against the inner peripheral surface of the front opening 6 of the dust collection case 3. Vacuum cleaner.