JPS6351825A - Electric cleaner - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention relates to a vacuum cleaner in which a rotating body is provided with a suction port,
The installation of the seal packing that maintains the airtightness between the suction port and the collection compartment and the atmosphere side is related to the structure.

(Prior Art) Conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 60-101051, or as shown in FIG. An inner wall 6 on the right side of the opening 5 is fixed to the inside of the lid 4, and a rotating body 8 having a suction lower facing the opening 5 is rotatably supported between the lid 4 and the inner wall 6. 2. Description of the Related Art Vacuum cleaners are known in which a hose connected to a suction lower can be rotated.

In the vacuum cleaner shown in FIG. 9, the rotating body 8 is composed of a pair of rotating body members 9 and 10, and both rotating body parts 19.
A suction port backing 11 is provided at the joint 10 to maintain airtightness of the joint and also to maintain airtightness of the connection between the suction lower and the hose.

Further, 12 is a slidable shutter plate that opens and closes the suction lower.

In this type of vacuum cleaner, the rotating body 8
A seal packing 13 is provided in order to maintain airtightness between the suction lower and the inner wall 6, that is, airtightness between the dust collection chamber 2 communicating with the suction lower and the atmosphere side.
Conventionally, this seal packing 13 was attached to the rotating body 8 and had a structure in which it was slidably abutted on the upper surface of the inner wall 6 facing the rotating body 8 surrounding the opening 5.

Further, as shown in FIG. 10 or 11, the inner wall 6
A structure is also adopted in which a circular rib 14 is formed protrudingly around the opening 5 on the soil surface facing the rotating body 8, and the seal packing 13 is brought into contact with the tip or inner peripheral surface of the rib 14.

However, with this structure in which the seal packing 13 is attached to the rotating body 8, it is not easy to assemble during manufacturing, and the fixing state of the seal packing 13 becomes unstable, so airtightness cannot be maintained reliably. .

Further, although a dust collection bag is detachably attached to the inside of the dust collection chamber 2, it is necessary to have a structure that prevents dust from leaking out of the dust collection bag. Therefore, in the conventional vacuum cleaners shown in FIGS. 9 to 11, a sealing body 15 is provided on the lower surface of the inner wall 6 to surround the dust collection opening and come into airtight contact with the opening frame of the bag. However, this seal body 15 is separate from the seal packing 13.

In this structure, since the seal body 15 for the dust collection bag is separate from the seal packing 13, the ease of assembly is further reduced. However, since the seal packing 13 rotates together with the rotating body 8, the seal body 15 is
It is of course impossible to integrate the two.

(Problems to be Solved by the Invention) As mentioned above, in conventional vacuum cleaners, the seal packing was attached to the rotating body, which resulted in poor assembly and reduced airtightness. The body must be provided separately from the seal packing, which further impairs ease of assembly.

The present invention is aimed at solving these problems.
The purpose of this invention is to improve the ease of assembly and airtightness of the rotating body in a vacuum cleaner in which a suction port is provided in the rotating body.

Furthermore, it is an object of the present invention to simplify the structure for maintaining airtightness near the dust collection port of the dust collection bag in a vacuum cleaner equipped with a dust collection bag, and to further improve assembly efficiency. It is something to do.

[Structure of the invention]

(Means for Solving the Problems) The vacuum cleaner of the present invention is provided with a dust collection chamber communicating with the electric blower in a main body case incorporating an electric blower, and an opening facing the dust collection chamber. is provided at the top, and a rotating body with a suction port that communicates the dust collection chamber with the outside is rotated between a lid body that opens and closes this opening and an inner wall fixed to the inside of this lid body. A seal packing is attached to the inner wall for movably supporting the rotary body and maintaining airtightness between the rotary body and the inner wall, and a bottom portion of the rotary body is slidably abutted on the seal packing.

Furthermore, in the above-mentioned vacuum cleaner, the dust collection bag having the dust collection port communicating with the suction port is removably mounted in the dust collection chamber, and the dust collection bag is attached to the side opposite to the contact portion to the rotating body. Place the seal packing in the dust collection bag and surround its dust collection opening.
A seal part that is brought into airtight contact is integrally provided.

(Function) In the vacuum cleaner of the present invention, when the rotating body provided with the suction port rotates during cleaning, the seal packing attached to the inner wall is slidably abutted on the bottom of the rotating body. This maintains airtightness between the rotating body and the inner wall. At this time, the seal packing is attached to the fixed inner wall, not to the rotating body, so even if the rotating body rotates, the seal packing's fixed state and shape remain stable, ensuring airtightness. Retention is more secure. Furthermore, as described above, by attaching the seal packing to the inner wall, assembly efficiency during manufacturing is improved.

Furthermore, in the vacuum cleaner of the present invention, the seal part provided integrally with the seal packing is brought into contact with the dust collection bag surrounding the dust collection opening, thereby preventing dust from flowing into areas other than the dust collection bag. Prevented. As described above, the sealing part for the dust collection bag is integrally provided with the seal packing attached to the inner wall, thereby improving the ease of assembly.

(Example) Hereinafter, the configuration of an example (first example) of a vacuum cleaner of the present invention will be described based on FIGS. 1 and 2.

Reference numeral 21 denotes a vacuum cleaner body, which is composed of a main body case 23 having an opening 22 formed in the upper front side thereof, and a lid body 24 whose rear end is pivoted to the main body case 23 and opens and closes the opening 22. The main body case 23 is composed of a lower main case member 25 and an upper main case member 26 that is coupled and fixed to the upper side of the lower main case member 25. One piece 27 is fixed. Furthermore, a bumper 28 is located on the circumferential surface of the main body case 23 and is held between the two main body case members 25 and 26.

The inside of the main body case 23 is partitioned into the front and back by a partition wall 32 formed approximately in the center thereof and having a communication port 31, and an electric blower 33 is disposed in a space behind the partition wall 32. At the same time, a space in front of the partition wall 32 serves as a dust collection chamber 34 having the opening 22 on the upper surface and located on the negative pressure side of the electric blower 33. Further, an exhaust port (not shown) communicating with the pressure increasing side of the electric blower 33 is formed in the rear surface of the main body case 23 . Moreover, inside the main body case 23, the electric air blower I! 33 for winding and storing the power cord. A drill reel (not shown) is rotatably provided. Furthermore, a pair of wheels 38 and a swing ring 39 are rotatably provided at the lower part of the main body case 23 on the rear side of both sides and the front side of the lower surface.

The lid 24 is formed into a thin surface with an open bottom, and a main body clamp 42 biased by a spring 41 is pivotally attached to the front end of the lid 24.

This main body clamp 42 is connected to the main body case 23.
The lid body 24 is held in a closed state by being removably engaged with a locking portion 43 formed at the upper end of the front surface. Further, a handle 44 is provided near the joint between the lid body 24 and the main body case 23 so as to be rotatable and retractable.

The front side of the upper surface of the lid body 24 is formed as an inclined surface 51 that descends toward the front, and a circular upper frontage 52 is formed in this inclined surface 51. Moreover, the lid body 2
An inner wall 53 is coupled and fixed to the lower surface side of the lid body 24 substantially parallel to the upper surface of the lid body 24, and a lower opening 54 facing the lower opening 52 is formed in the inner wall 53. Further, a support body 55 having a hollow cylindrical shape is fixed between the inclined surface 51 and the inner wall 53, and a pair of annular retainers on the front and back sides are provided at the upper end of this support body 55 bent in the inner diameter direction. Groove 5
6.57 is formed. In addition, these retaining grooves! 16
．． 57 has its center coincident with the center of both openings 52.54, and has a larger diameter than both openings 52.54.

Reference numeral 61 denotes a rotating body, which is located between the inclined surface 51 and the inner wall 53 and is rotatably supported by the support body 55. That is, this rotating body 61 consists of a substantially disc-shaped upper rotating body member 63 and a lower rotating body member 64 that are connected and fixed with screws 62 or the like. Cylindrical engaging portions 65 and 66 having the same diameter are rotatably engaged with the holding grooves 56 and 57 of the support body 55, respectively.

A cylindrical suction port 67 that faces the upper opening 52 of the lid 24 is formed in the lower rotating body member 63 and projects downward. On the other hand, a cylindrical tubular portion 68 that faces the suction port 67 and the lower opening 54 of the lid body 24 is formed on the bottom surface of the lower rotating body member 64 to protrude downward.
On the outer peripheral side of the lower end, that is, the tip of this tubular part 68,
A truncated conical inclined surface 69 is formed which is inclined in a direction in which the diameter decreases downward.

An annular suction port packing 71 is airtightly installed between the suction port 67 and the tubular portion 68, and an annular protrusion 72 is formed to protrude from the inner peripheral side of the suction port backing 71. At the same time, a valve portion 73 that can be opened and closed is formed of a plurality of protrusions. Further, an annular seal packing 76 is attached to the peripheral edge of the lower opening 54 of the inner wall 53, and this seal packing 76 includes an elastically deformable annular lip portion 77 and an annular seal portion 78. The inclined surface 69 of the tubular portion 68 is airtightly and slidably abutted against the lip portion 77 which is formed to protrude downwardly and downwardly and is inclined in a direction in which the diameter increases upward.

Further, between the inclined surface 51 of the lid 24 and the rotating body 61, a flexible shutter unit 81 for opening and closing the upper opening 52 is provided so as to be slidable and retractable.

Further, within the dust collection chamber 34 of the main body case 23, a substantially U-shaped holding plate 82 is fixed, which faces the inner wall 53 of the mass body 24 with a small gap therebetween.

83 is a dust collection bag made of paper or the like, and the bag-shaped filter material 8
4, and an opening frame 86 which is attached to the frontage side of the filter material 84 and has a dust collection opening 85 formed therein. The opening frame 86 of this dust collection bag 83 is attached to the holding plate 82.
It is temporarily held in a groove formed in the dust collecting chamber 34, and is detachably installed in the dust collecting chamber 34 through the opening 22. Further, a seal portion 78 of the seal packing 76 of the lid body 24 is pressed against the mouth frame 86 surrounding the dust collection port 85 in an airtight manner.

Furthermore, on the front side of the partition wall 32 of the main body case 23,
An auxiliary filter 87 is detachably attached.

Reference numeral 91 denotes a bow, which includes a bendable hose main body (not shown) and a hose provided at one end of the hose main body to connect the vacuum cleaner main body 2.
A bent cylindrical connecting pipe 93 whose tip end is removably fitted into the suction port 67 of the hose body 1, and a grip pipe (not shown) which serves as a hand portion provided at the other end of the hose main body. It has become. The connecting tube 93 is covered with a cover 94 except for the tip.

Next, the operation of this embodiment will be explained.

For cleaning, the connecting pipe 93 of the hose 91 is connected to the suction port 67 of the cleaner main body 21, and the suction port body is connected to the grip pipe of the hose 91 via an extension pipe, for example. Note that as the connecting pipe 93 is inserted into the suction [167], it is pressed by the connecting pipe 93 to open the valve portion 73, and the annular protrusion 72 of the suction ring 71 is formed on the outer peripheral surface of the connecting pipe 93. Airtightly abutted.

When cleaning, hold the grip tube of the hose 91 and remove it from the rotating body 61.
At the same time, while rotating the hose 91, the suction port body is moved to face the object to be cleaned. And the dust is removed by electric blower 3.
3, the dust is sucked in through the suction port body, guided to the dust collection chamber 34 via the extension pipe and hose 91, and stored in the dust collection bag 83.

By the way, when the Bose 91 rotates, the Bose 91
The inclined surface 6 of the tubular portion 68 of the rotating body 61 rotates with the
9 slides on the lip portion 77 of the seal packing 76 attached to the inner wall 53 and the inner wall 53 and the rotating body 61
In other words, the airtightness between the suction port 67 and the dust collection chamber 34 which is rotatably connected to the suction port 67 and the atmosphere side is maintained. At this time, since the seal packing 76 is attached to the fixed inner wall 53 instead of the rotating body 61, even if the rotating body 61 rotates, the seal packing 76
The fixed state, shape, etc. of are kept stable, and airtightness is more reliably maintained.

Furthermore, since the seal packing 76 is attached to the inner wall 53, the seal packing 76 itself can be increased in size, which improves ease of assembly during manufacturing.

In addition, the seal portion 18 of the seal packing 76 is attached to the dust collection bag 83.
Since the opening frame 86 surrounds the dust collection port 85 and is airtightly abutted, dust is prevented from flowing into the dust collection chamber 34 other than into the dust collection bag 83.

Then, as described above, the seal packing 76 is attached to the rotating body 6.
By attaching the seal part 78 for the dust collection bag 83 to the seal packing 76, the number of parts can be reduced and assembly efficiency is further improved. improves.

Note that as in the second embodiment shown in FIG. 3, the rotary body 61 may not be provided with the tubular portion 68 and the seal packing 76 may be brought into direct contact with the bottom surface of the rotary body 61; By bringing the tip of the tubular portion 68 provided on the rotating body 61 into contact with the seal packing 76, airtightness is improved.

Further, as in the third embodiment shown in FIG. 4, it is possible to adopt a structure in which the inclined surface 69 is not formed at the distal end of the tubular portion 68; By providing the inclined surface 69 as in the embodiment, the following effects can be obtained. That is, the inclined surface 69 and the seal packing 7
Since the contact surface with the lip portion 77 of the rotating body 61 is inclined, appropriate force is applied to this contact surface both in the radial direction and the axial direction of the rotating body 61, ensuring reliable contact and ensuring airtightness. retention is improved. Furthermore, a larger contact area h between the tubular portion 68 and the lip portion 77 improves airtightness, and a smaller contact area improves the rotatability of the rotating body 61. However, by providing the inclined surface 69, the contact area h Adjustment is easy and the balance between airtightness and rotation can be set appropriately.

Furthermore, as in the fifth embodiment shown in FIG.
A truncated conical inclined surface 69 is formed on the inner circumferential side of the distal end of the cylindrical surface, and the inclined surface 69 is in the shape of a truncated cone, which is inclined in a direction in which the diameter expands downward.
The lip portion 77 of the seal packing 76 that comes into contact with the
It may also be inclined in a direction in which the diameter expands downward. In addition,
The structure of the fourth embodiment is easier to manufacture than the structure of the fifth embodiment.

Further, as in the sixth embodiment shown in FIG. 7, a convex portion 96 may be formed on the upper surface of the inner wall 53, and four portions 97 with which the convex portion 96 is engaged may be formed on the seal packing 76. According to this structure, as the rotating body 61 rotates, the seal para-1-
It is possible to prevent the ring 76 from shifting and to reliably hold the seal packing 7G in a fixed state.

Furthermore, as in the seventh embodiment shown in FIG. 8, a recess 98 may be formed on the upper surface of the inner wall 53, and a protrusion 99 that is engaged with the recess 98 may be formed on the seal packing 76. Of course, the inner wall 53 is formed with double edges of the protrusion 96 and the recess 98, and the seal packing 7
It may be formed into G.

〔Effect of the invention〕

According to the present invention, the seal packing is attached to the inner wall fixed to the lid, and the bottom part -17 of the rotary body, which is rotatably supported between the lid and the inner wall and has the suction port, is slid onto the seal packing. Since they are in movable abutment, the seal packing can be made larger, which improves the ease of assembly during manufacturing.It also stabilizes the fixed state of the seal packing and improves the positional relationship between the seal packing, the rotating body, and the inner wall. By being stable, airtightness between the rotating body and the inner wall can be maintained more reliably.

Furthermore, according to the present invention, the seal packing is attached to the inner wall, and the seal part that airtightly contacts the dust collection bag is integrally provided in the seal packing, so that the number of parts is reduced and the ease of assembly is further improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing a first embodiment of the vacuum cleaner of the present invention, FIG. 2 is a cross-sectional view of the vicinity of the moving body, and FIG. 3 is a second embodiment of the present invention. Cross-sectional view near the rotating body,
FIG. 4 is a cross-sectional view of the vicinity of the rotating body showing a third embodiment of the present invention, FIG. 5 is a cross-sectional view of the vicinity of the rotating body showing the fourth embodiment of the present invention, and FIG. 6 is a fifth embodiment of the present invention. 7 is a sectional view near the rotating body showing a sixth embodiment of the present invention; FIG. 8 is a sectional view near the rotating body showing a seventh embodiment of the present invention; FIG. 9 is a sectional view of the vicinity of the rotating body showing an example of a conventional vacuum cleaner, FIG. 10 is a sectional view of the vicinity of the rotating body of another example of a conventional vacuum cleaner, and FIG. It is a sectional view of the vicinity of the "rotating body" showing still another example of removing the machine. 22...Opening part, 23...Main case, 24...Lid body,
33...Electric blower, 34...Dust collection room, 53...Inner wall,
61...Rotating body, 67...Suction port, 68...Tubular part, 7
6...Seal packing, 78...Seal part, 83...
Dust collection bag, 85...Dust collection port.

Claims (3)

[Claims] (1) A main case with a built-in electric blower and a dust collection chamber that communicates with the electric blower, and an opening at the top facing the dust collection chamber, and a lid that opens and closes the opening of the main case. an inner wall fixed to the inside of the lid; a rotating body rotatably supported between the lid and the inner wall and provided with a suction port communicating the dust collection chamber with the outside; and a seal packing that maintains airtightness between the rotating bodies, the seal packing being attached to the inner wall, and the bottom surface of the rotating body being slidably in contact with the seal packing. Machine. (2) The vacuum cleaner according to claim 1, wherein the rotating body has a tubular portion protruding from the bottom surface thereof, and the tip of the tubular portion is brought into contact with the seal packing. . (3) A main case with a built-in electric blower and a dust collection chamber communicating with the electric blower, and an opening at the top facing the dust collection chamber, and a lid that opens and closes the opening of the main case. an inner wall fixed to the inside of the lid; a rotating body rotatably supported between the lid and the inner wall and provided with a suction port communicating the dust collection chamber with the outside; a seal packing that maintains airtightness between the rotating bodies; and a dust collection bag that has a dust collection port that faces and communicates with the suction port and is removably installed in the dust collection chamber, and the seal packing has the It is attached to an inner wall, the bottom part of the rotating body is slidably abutted on the seal packing, and the seal packing is located on the opposite side of the contact part to the rotating body, and the dust collecting bag is attached to the seal packing. A vacuum cleaner characterized by having an integral seal part that surrounds the mouth and comes into airtight contact.