JPH08238202A - Electric vacuum cleaner - Google Patents

Abstract

PURPOSE: To clamp a mouth frame body accurately with a clamp member even when a lid body happens to be closed by mistake by providing a guide member on the undersurface of the lid body positioned near the clamp member to move the mouth frame body to the side of a seal member with the lid body closed. CONSTITUTION: In the exchanging of a paper pack filter, when a protruded part 162 of a clamp member 16 is happens to be put on a mouth frame body 6b by mistake to close a lid body 9, a guide member 170 provided on the underside of a bulged-out part 34 enters a cut of the clamp member 16 with the closing of the lid body 9 before the bulged-out part 34 contacts an upper part 162b of the protruded part 162 of the clamp member 16 and an inclined surface 171 of the guide member 170 contacts an upper part of the mouth frame body 6b. With further closing of the lid body 9, the inclined surface 171 guides the mouth frame body 6b to the side of a seal member 19 and the protruded part 162 of the clamp member 16 comes off the top of the mouth frame body 6b. Thus, the mouth frame body 6b is fixed with the upper rear surface thereof kept by the protruded part 162 of the clamp member 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main body in which an upper part of a dust collecting chamber is opened, a lid body which is openably and closably attached to the opening, a paper pack filter arranged in the dust collecting chamber, and a paper pack filter. The present invention relates to an electric vacuum cleaner including a clamp member that abuts and fixes a mouth frame of a pack filter on a seal member provided on a front wall of a dust collection chamber.

[0002]

2. Description of the Related Art An electric vacuum cleaner shown in FIG. 20 is conventionally known. Such a vacuum cleaner has a dust collecting chamber 201 on the front side.
And a lid 203 rotatably mounted in the opening 202, and a paper pack filter 205 exchangeably arranged in the dust collecting chamber 201. And this paper pack filter 20
No. 20 made of cardboard provided in the opening 205a of No. 5
Clamp member 210 for fixing 6 by abutting against ring-shaped seal member 208 provided on front wall 207 of dust collection chamber 201
It has and.

The seal member 208 is provided in a connection hole 211 to which a connection pipe (not shown) of a hose (not shown) is connected.

The clamp member 210 has a clamp portion 215 (see FIG. 21) for pressing the upper portion of the mouth frame body 206 of the paper pack filter 205 from above.
Is provided with a protrusion 215a that protrudes downward and presses the back surface 206b of the mouth frame 206. This protrusion 21
By 5a, the mouth frame 206 is brought into contact with and fixed to the seal member.

When the mouth frame 206 of the paper pack filter 205 abuts and is fixed to the seal member 208 by the protrusion 215a of the clamp portion 215, the connection hole 211 and the opening 205a of the paper pack filter 205 are sealed by the seal member 20.
8 is connected in a sealed state.

[0006]

However, in such an electric vacuum cleaner, when the paper pack filter 205 is replaced, the mouth frame 206 of the paper pack filter 205 is replaced.
Is fixed to the seal member 208 by the clamp member 210, but as shown in FIG. 21, the protrusion 215a of the clamp member 210 is erroneously attached to the paper pack filter 2 as shown in FIG.
The lid 204 may be closed while being placed on the upper portion 206a of the mouth frame 206 of No. 05.

When the lid 204 is closed in such a state, the clamp portion 215 of the clamp member 210 is closed by the lid 20.
The protrusion 215a of the clamp part 215 bites into the mouth frame body 206 because it is pressed by the protrusion 204a of No. 4, and the mouth frame body 206 is formed of cardboard so that the mouth frame body 206 is deformed or Protrusion 215a
As a result, the mouth frame body 206 moves in a direction in which the mouth frame body 206 is separated from the seal member 208, and there is a problem that the roll property between the mouth frame body 206 and the seal member 208 deteriorates.

The present invention has been made in view of the above problems, and an object thereof is to close the lid body by mistake with the protruding portion of the clamp member placed on the upper portion of the mouth frame of the paper pack filter. An object of the present invention is to provide an electric vacuum cleaner that does not deteriorate the ruling property between the mouth frame and the seal member.

[0009]

In order to achieve the above object, the present invention provides a main body having a dust collecting chamber formed on the front side and an upper part of the dust collecting chamber being opened, and the opening and closing of the opening. A lid body to be mounted, a paper pack filter arranged in the dust collection chamber, a seal member provided around a connection hole provided in the front wall of the dust collection chamber, and an opening of the paper pack filter. And a clamp member for fixing the flat plate-shaped mouth frame body, and the clamp member has a protruding portion that protrudes downward and presses the back surface of the mouth frame body, and the protruding portion presses the back surface of the mouth frame. An electric vacuum cleaner in which the mouth frame is brought into contact with and fixed to a sealing member, and the connection hole and the opening are connected in a sealed state by this fixing,
On the lower surface of the lid, which is a position near the clamp member,
A guide member is provided for moving the mouth frame body to the seal member when the lid body is closed.

[0010]

According to the present invention, a guide member for moving the mouth frame toward the seal member when the lid is closed is provided on the lower surface of the lid near the clamp member. Therefore, even if the protrusion of the clamp member is accidentally placed on the upper part of the mouth frame of the paper pack filter and the lid is closed, the guide member moves the mouth frame to the seal member side. Is removed from the top of the mouth frame of the paper pack filter and the mouth frame is securely clamped by the clamp member.
It is possible to prevent the sealing property between the mouth frame body and the seal member from being deteriorated without deforming the mouth frame body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric vacuum cleaner according to the present invention will be described below with reference to the drawings.

1 and 2A show a hand-type vacuum cleaner. This electric vacuum cleaner includes a cleaner body 1 and a suction port body 2 which is used by connecting to the cleaner body 1.
(Dust suction means). Incidentally, 3 is a connecting pipe portion of the suction port body 2.

The cleaner body 1 is provided with a dust collecting case 4, an electric fan 5 (electric blower), a bag-shaped paper filter (paper pack filter) 6 as a primary filter, a secondary filter (prefilter) 7, and the like. There is. The dust collection case 4 is composed of a case body 8 (see FIGS. 1 to 5) and a lid body 9, and the lid body 9 is composed of a lid body 10 and a small lid 11.

The case main body 8 has a fan chamber 12 at the rear portion and a dust collection chamber recess 13 which is open upward and has a square open end at the front portion. The fan chamber 12 and the dust collecting recess 13 are separated by the secondary filter 7, and
The secondary filters 7 communicate with each other. Moreover, the electric fan 5 is mounted in the fan chamber 12, and the dust collecting chamber recess 13 is provided through the secondary filter 7.
By applying negative suction pressure to the inside, the dust collecting chamber recess 1
The air on the 3rd side is sucked through the secondary filter 7.

An inclined wall 14 whose upper side inclines obliquely forward is formed at the front end of the dust collecting chamber recess 13, and a mouth frame locking groove 15 along the inclined wall 14 at the front end bottom of the dust collecting chamber recess 13.
Is formed on the front upper surface of the case main body 8
3, a clamp member 16 is pivotally mounted by a support shaft 17 so as to be rotatable. The clamp member 16 projects toward the upper side of the dust collecting chamber recess 13 and is urged to rotate toward the dust collecting chamber recess 13 by a spring (not shown).

As shown in FIGS. 6 to 9, the clamp member 16 includes a clamp body 160 pivotally mounted on a support shaft 17, and
The clamp body 161 is provided with a clamp portion 161 extending rearward from the clamp body 160 and having a predetermined width, and a protrusion portion 162 continuously formed at the rear end of the clamp portion 161 and protruding downward. A notch 163 having a predetermined width extending from the rear end of the clamp part 161 to the front side is formed in the clamp part 161, and two protruding parts 162 are formed. Protrusion 162
Inside the one end of the lower part of the paper, a protrusion 1 for pressing the back surface 164 of the mouth frame 6b of the paper pack filter 6 described later.
62a is formed.

The paper pack filter 6 described above is disposed in the recess 13 for the dust collecting chamber.

The paper pack filter 6 includes a bag-shaped paper filter portion 6a and an opening 2 of the bag-shaped paper filter portion 6a.
A flat mouth frame body 6 made of cardboard integrally provided on 61
b and. The lower end portion of the mouth frame body 6b is inserted into the mouth frame locking groove 15, and the upper back surface 164 is pressed by the protrusion 162a of the protrusion 162 of the clamp member 16. By this pressing, the mouth frame body 6b is abutted and fixed to the seal member 19 described later.

Further, inside the front end portion of the case main body 8, there is mounted a cylindrical body 18 extending obliquely downward and forward, the rear end penetrating the inclined wall 14 and the front end opening to the front side surface 8a. A ring-shaped seal member 19 is attached to the rear end of the cylindrical body 18, and the mouth frame 6b is elastically contacted with the seal member 19. In addition, a tapered connection port 18a is formed in the cylindrical body 18 to expand its diameter toward the front side surface.
The connection pipe portion 3 of the suction port body 2 is fitted in the.
The suction port body 2 may be connected to the connection port 18a via a dust collecting hose (not shown), an extension pipe or the like.

Further, the case body 8 has a recess 1 for the dust collecting chamber.
An annular, rectangular seal abutment surface 20 is provided along the opening edge of 3. In addition, the case main body 8 is provided with the fixed claw portion 21 for locking the lid body located at the upper portion of the front end, and is also positioned at the center of the rear end of the seal contact surface 20 to have the locking hole 22. Are formed.

The dust collecting chamber recess 13 of the case body 8 is
The upper open end is attached by a lid 9 so as to be openable and closable, and a dust collecting chamber 23 is formed between the upper open end and the lid 9. Incidentally, this dust collecting chamber 23
The intake negative pressure by the electric fan 5 acts on the. The lid 9 is composed of the lid body 10 and the small lid 11 as described above.

A first locking claw 24 is formed at the front end of the lid body 10 so as to project obliquely downward and forward. In addition, as shown in FIGS. 2 and 3 (a), a protrusion (bulging portion) 25 is formed on the upper surface of the rear portion of the lid main body 10 so that the amount of upward protrusion gradually increases toward the center of the rear end portion. Has been done.

In the rear end portion of the protrusion 25, a storage recess 26 for the clamp component extending left and right (see FIGS. 1, 10 to 12).
Reference) is formed. One side wall 2 of the storage recess 26
A through hole 27 having a taper 27a on the outer surface side is formed in 5a, a small bulging projection 28 for spring locking is formed in the other side wall 25b, and a claw moving direction is formed on the bottom of the storage recess 26. A shaped opening 29 is formed, and a fixed locking claw 30 projecting downward is integrally provided at the bottom of the storage recess 26.

Further, FIG. 10 (c) shows the inside of the storage recess 26.
Axial clamp button 31 and spring 3 as shown in
2 are provided. One end of the clamp button 31 is projected laterally through the through hole 27, and a movable locking claw 33 is integrally provided at an intermediate portion of the clamp button 31. The movable locking claw 33 is projected downward through the rectangular opening 29, and the spring 32 is provided between the other end of the clamp button 31 and the small bulging projection 28 for locking the spring.
And the spring 32 biases the clamp button 31 outward.

Then, while the first locking claw 24 is engaged with the fixed claw portion 21 for locking the lid body, the fixed locking claw 30 and the movable locking claw 33 are inserted into the rectangular opening 29, By locking the tip claw portion of the movable locking claw 33 to the one end edge side of the rectangular opening 29 by the spring force of the spring 32, the case body in a state where the lid body 11 closes the dust collecting chamber recess 13 is formed. 8
It is fixed to.

Further, in the central portion of the lid body 10, as shown in FIGS.
1, as shown in FIGS. 13 and 14, the bulging projection 34 extends forward and backward and projects downward (to the side of the primary filter).
(Filter holding part) is formed.

A guide member 170 is provided on the lower surface of the bulging protrusion 34 so as to enter the notch 163 of the clamp member 16 when the lid 9 is closed. The guide member 170 has an inclined surface 17 that abuts the upper portion of the mouth frame body 6b when the lid body 9 is closed and guides the mouth frame body 6b to the seal member 19 side.
1 is formed.

A storage recess 35 for an indicator extending in the front-rear direction is formed in the bulging projection 34, and the storage recess 3 is formed.
A communication port 35b is formed in the rear end wall 35a of the No. 5.

As shown in FIG. 8, each of the above-mentioned storage recesses 26, 35 has one groove-like portion 37 extending forward and backward through an opening 36 extending forward and backward. Between the two storage recesses 26,
An arc-shaped lid support portion 38 having a predetermined width in the left-right direction is provided between the protrusions 35. A first locking groove 39 is formed on the front side surface of the storage recess 35, and second locking grooves 40, 40 are formed on both rear side surfaces of the storage recess 35 (FIGS. 10 to 10).
(See FIG. 13).

On the other hand, the small lid 1 for closing the groove portion 37.
The first lid locking claw 41 is formed on the first lid 11, and the small lid 11
Second lid locking claws 42, 42 are formed on both side surfaces of the intermediate portion. Then, the small lid 11 that covers the groove portion 37
Attaches the lid locking claws 41, 42, 42 to the locking grooves 39, 4
It is fixed to the lid main body 10 by engaging with 0 and 40 as shown in FIGS. This small lid 1
1 has a plurality of communication holes 43 at the front end (see FIGS. 2 and 14)
And a transparent window portion 44 extending in the front-rear direction is formed in the middle portion of the small lid 11.

Then, as shown in FIG. 1, an indicator 45 extending forward and backward is mounted as a leak valve in the storage recess 35. This indicator 45 has end walls 4 at both ends.
It has a cylinder 46 provided with 6a and 46b. A suction port 47 and an exhaust port 48 are formed in the end walls 46a and 46b, respectively.

The indicator 45 is a cylinder 46.
A piston-shaped valve element 49 slidably arranged therein
And a spring 50 which is interposed between the end walls 46a, 46b and the valve body 49 to bring the valve body 49 into contact with the end wall 46a as a valve seat by a spring biasing force to close the suction port 47. Have. A passage 51 is formed between the valve body 49 and the cylinder 46 to communicate the front and rear of the valve body 49 when the valve is opened.

The communication hole 43 of the small lid 11, the suction port 47, the passage 51, the space (number omitted) in the cylinder 46, the discharge port 48, the communication port 35b, etc. form a series of leak air passages 52. There is.

Since the leak air passage 52 communicates the upper rear portion of the dust collecting chamber 23 with the atmosphere, the secondary filter 7 does not require a separate filter for removing dust contained in the leak air. Dust contained in the wind can be removed. In addition, even if the leak air passage 52 is directly introduced above the rear portion of the dust collection chamber 23 in this manner, the leak air passage 52
Is located at the rear end of the bulging protrusion 34 and close to the secondary filter 7 (electric fan 5) and opens above the rear part of the dust collection chamber 23. Even if it bulges out and comes into contact with the bulging protrusion 34, the rear opening end (communication port 35b) is prevented from being closed.

An annular and rectangular seal mounting portion 60 (see FIGS. 1, 9, and 12) is formed on the inner surface of the lid body 10 so as to correspond to the annular seal contact surface 20. The seal mounting portion 60 is composed of an inner and outer double outer annular wall portion 61 and an inner annular wall portion 62 projectingly provided on the inner surface of the lid body 10. An annular mounting space 63 is provided between the annular wall portions 61 and 62. Has been formed. A mounting base portion 64a of an annular elastic seal member 64 is fitted to the open end (lower end portion) of the annular mounting space 63, and the mounting base portion 64 is attached to both annular wall portions 61 and 62 with an adhesive. It is fixed by adhesion.

Moreover, the annular mounting space 63 is shown in FIGS.
As shown in FIG. 7, the width T on the electric fan 5 side is formed larger than the width t on the connection port 18a side, and the outer annular wall portion 6 is formed.
Notch openings 65, 65 communicating with the atmosphere are provided at the rear end of 1 as shown in FIGS. 9 (d) and 12, and the mounting base 64 is made of an adhesive agent on both annular wall portions 61, 62. When adhesively fixing, the volatile component of the adhesive that volatilizes in the annular mounting space 63 is easily discharged to the outside through the notch openings 65, 65, and the time for the adhesive to be inserted can be shortened.

The mounting base 64 of the elastic seal member 64
Regarding the cross-sectional area of a, the rear side of the dust collection chamber 23 (the electric fan 5 and the secondary filter 7 side) is the front side (connection port 18a side).
Is formed larger than. Moreover, the annular lip portion 64b of the elastic seal member 64 is elastically contacted with the annular seal contact surface 20.

Next, the operation of the electric vacuum cleaner thus constructed will be described.

According to this structure, when the paper pack filter 6 is replaced, as shown in FIG. 18, the protrusion 162 of the clamp member 16 is erroneously placed on the mouth frame 6b and the lid 9 is inserted. When the lid 9 is closed, when the lid 9 is closed, the bulging protruding portion 34 of the lid 9 causes the protruding portion 162 of the clamp member 16 to move.
The guide member 170 provided on the lower surface of the bulging protrusion 34 enters into the notch 163 of the clamp member 16 before coming into contact with the upper portion 162b of the guide member 170, and the inclined surface 171 of the guide member 170 is inserted into the mouth frame 6b.
Abut the upper part of.

When the lid 9 is further closed, the inclined surface 171 guides the mouth frame 6b to the seal member 19 side, and as shown in FIG. 6b, the back surface 164 of the upper portion of the mouth frame 6b is protruded from the clamp member 16
The protrusion 162a is pressed and fixed. That is, the mouth frame 6b is securely clamped by the clamp member 16 without being deformed.

By this clamp, the mouth frame 6b is brought into contact with the seal member 19, and the opening 261 of the paper pack filter 6 is opened.
And the opening 18a of the cylindrical body 18 are connected in a state of being sealed by the sealing member 208, the sealing property thereof is secured, and deterioration of the sealing property is prevented.

By the way, the protruding portion 16 of the clamp member 16
2 and the protrusion 162, the guide member 170 and the protrusions 162, 162, which are in the notches 163 formed between the protrusions 162 and 162, are adjacent to each other, so that the guide member 170 abuts the mouth frame 6b. If the contact portion moves to the seal member 19 side, the portion near the contact portion of the mouth frame body 6b also closes to the seal member 1.
Since it moves to the 9 side, the protrusion 16 of the clamp member 16
2, 162 will surely wrap around the back surface 164 of the mouth frame body 6b, and the mouth frame body 6b can be reliably fixed at a predetermined position.

[0043]

As described above, according to the present invention, the guide for moving the mouth frame toward the seal member on the lower surface of the lid located near the clamp member when the lid is closed. Since the member is provided, even if the protrusion of the clamp member is accidentally placed on the upper part of the mouth frame of the paper pack filter and the lid is closed, the guide member moves the mouth frame to the seal member side. The protruding portion of the clamp member is disengaged from the upper portion of the mouth frame body of the paper pack filter, and the mouth frame body is securely clamped by the clamp member, which may deteriorate the sealing property between the mouth frame body and the seal member. To be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of an electric vacuum cleaner according to the present invention.

2A is an exploded perspective view showing the relationship between the cleaner body and the suction port body shown in FIG. 1, and FIG. 2B is an explanatory view of the cleaner body of FIG. is there.

3 (a) is a perspective view showing the attachment / detachment work of the lid of the cleaner body shown in FIGS. 1 and 2, and FIG. 3 (b) shows the relationship between the lid of FIG. 3 (a) and the front of the case body. FIG.

FIG. 4 is a perspective view showing a state where the lid of the cleaner body shown in FIG. 3 (a) is removed.

FIG. 5 is an explanatory diagram when the paper pack filter is attached to and detached from the recess for the dust collecting chamber.

FIG. 6 is a plan view showing a clamp member.

FIG. 7 is a side view of the clamp member shown in FIG.

8 is a cross-sectional view of the clamp member shown in FIG.

9 is a bottom view of the clamp member shown in FIG.

10A and 10B are partially enlarged views of FIG. 1, FIG. 10C is an explanatory view of a mechanism for locking the lid body to the case body, and FIG. 10D is FIG. 10A.
Is an explanatory view seen from the arrow A side, and (e) is a sectional view taken along the line BB of (d).

FIG. 11 is an explanatory view showing a mechanism for locking the lid body to the cleaner body.

FIG. 12 is a cross-sectional view that omits a part of the lid body shown in FIG.

FIG. 13 is a plan view of the lid body shown in FIG.

14 is a bottom view of the lid body shown in FIG. It is the mounted top view.

15A is a cross-sectional view of a small lid that covers a storage recess for an indicator of the lid body shown in FIG. 1, and FIG. 15B is a bottom view of FIG.

16 is a cross-sectional view of a locking portion between a side portion of the small lid shown in FIG. 1 and a lid body.

17 is a cross-sectional view of a locking portion between a front end portion of the small lid shown in FIG. 1 and a lid body.

FIG. 18 is an explanatory diagram when the protruding portion of the clamp member is placed on the mouth frame.

FIG. 19 is an explanatory diagram when the projecting portion of the clamp member is removed from the mouth frame body.

FIG. 20 is a sectional view showing a configuration of a conventional electric vacuum cleaner.

FIG. 21 is an enlarged sectional view in which a part of FIG. 20 is enlarged.

[Explanation of symbols]

 1 Vacuum Cleaner Main Body 6 Paper Pack Filter 6b Mouth Frame 9 Lid 16 Clamp Member 23 Dust Collection Chamber 162 Projection 170 Guide Member

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Hiroshi Uzawa 43-43 Horiyamashita, Hadano City, Kanagawa Prefecture

Claims (2)

[Claims] 1. A main body in which a dust collection chamber is formed on the front side and an upper part of the dust collection chamber is opened, a lid body which is openably and closably attached to the opening, and a paper which is arranged in the dust collection chamber. A pack filter, a seal member provided around a connection hole provided on the front wall of the dust collection chamber, and a clamp member for fixing a flat mouth frame provided in the opening of the paper pack filter, The clamp member has a protruding portion that protrudes downward and presses the back surface of the mouth frame body, and the protruding portion presses the back surface of the mouth frame body so that the mouth frame body is brought into contact with and fixed to the seal member. An electric vacuum cleaner in which the connection hole and the opening are connected in a sealed state by this fixing, and the lower surface of the lid body is located in the vicinity of the clamp member,
An electric vacuum cleaner comprising a guide member for moving the mouth frame member to a seal member when the lid member is closed. 2. The clamp member has a clamp portion that extends rearward and has the protrusion formed at the rear portion, and has a notch that extends from the rear end portion of the clamp portion toward the front wall. The electric vacuum cleaner according to claim 1, wherein, when the lid is closed, the guide member moves into the notch and moves the mouth frame in a direction of abutting against the seal member.