JP2011010930A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily determine whether a dust collection part is correctly attached to a body or not.SOLUTION: An electric vacuum cleaner is provided with: a body in which a dust collection chamber having an opening is formed; the dust collection part which is detachably mounted on the dust collection chamber from the opening; and a lid for opening/closing the opening. The body has a dust collecting container detection means in such a manner that it is pressed by an elastic member and is protruded toward the opening. The dust collection part has a protruded guide part which comes into contact with a collected dust detection means when it is fitted to the dust collection chamber. The lid has a projection part for preventing the lid from closing the opening by coming into contact with the collected dust detection means when the dust collection part is not mounted to the dust collection chamber. When the dust collection part is mounted to the dust collection chamber, the collected dust detection means retracts away from a passing region of the dust collection part by the guide part coming into contact with the collected dust detection means and pressing it. The dust collection part reaches the mounting position of the dust collection chamber so that the collected dust detection means may get over the guide part. Thus, the collected dust detection means is held in a position where it does not come into contact with the projection part.

Description

  The present invention relates to a vacuum cleaner in which a dust collection container is detachable inside a main body.

Conventionally, in a vacuum cleaner that is detachably housed in a dust collection chamber formed inside the vacuum cleaner body and has a dust collection part (dust collection container) that accumulates the sucked dust, the dust collection part is inside the main body. If not installed, there is one that regulates the closure of the lid that covers the dust collection chamber.
In such a vacuum cleaner, an engagement recess is formed in the vicinity of the dust collecting chamber, and an advancing / retreating member capable of moving back and forth in the front-rear direction is provided in the engagement recess in a state of being biased in one direction by a spring. The lid that opens and closes the chamber is provided with a convex portion serving as a closing restricting portion, and the dust collecting portion is provided with a protrusion that presses the advance / retreat member when attached to the dust collecting chamber.

And when the dust collecting part is not correctly provided in the dust collecting chamber, the advancing / retreating member is not pressed by the protrusion of the dust collecting part, so that it stays in the same position without retreating. At this time, if the dust collection chamber is to be closed by the lid, the closing restricting portion provided on the lid interferes with the advance / retreat member, and the dust collection chamber cannot be closed by the lid.
Further, when the dust collection part is correctly provided in the dust collection chamber, the advancing / retreating member is pressed by the protrusion of the dust collection part, and when the lid is closed, the dust collection part moves backward to a position where it does not interfere with the closing restriction part. Thereby, when a dust collection part is provided in a dust collection chamber, it becomes possible to close a dust collection chamber with a lid (for example, refer to patent documents 1).

JP 2002-300990 A (FIGS. 1-4)

However, in the configuration disclosed in Patent Document 1, since the protrusion provided on the dust collecting portion pushes the advancing and retracting member, the lid can be closed and impossible depending on the presence or absence of the dust collecting portion. However, when the lid is open, it is difficult to determine whether or not the dust collection unit is correctly attached to the dust collection chamber.
In particular, the configuration disclosed in Patent Document 1 does not notify the user that the dust collection unit has been correctly installed in the dust collection chamber, so that the dust collection is performed with the user opening the lid. It is difficult to determine whether the part is attached correctly.

  Therefore, the present invention has been made to solve the above problem, and when the dust collecting part is attached to the main body of the vacuum cleaner, it is possible to notify the user that the dust collector has been correctly attached. The purpose is to provide.

  In order to solve the above problems, a main body in which a dust collecting chamber having an opening is formed, a dust collecting portion that is detachably mounted in the dust collecting chamber from the opening, and a lid that opens and closes the opening are provided. The main body is provided with a dust collecting unit detecting means that is pressed by the elastic member and protrudes from the opening, and the dust collecting unit is connected to the dust collecting unit detecting means when mounted in the dust collecting chamber. Protruding guides that contact the dust collector detection means when the dust collector is not installed in the dust collection chamber, so that the lid does not close the opening. When the dust collecting unit is mounted in the dust collecting chamber, the dust collecting unit detecting means retreats from the passage area of the dust collecting unit by pressing the guide unit in contact with the dust collecting unit detecting means. When the dust collection unit reaches the mounting position of the dust collection chamber, the dust collection unit detection unit gets over the guide unit, and the dust collection unit detection unit Constituting the electric vacuum cleaner to be held by not touch position.

  If each part is configured as described above, the lid can be closed and cannot be closed depending on the presence or absence of the dust collecting part, and the dust collecting part is correctly attached to the dust collecting chamber even when the lid is opened. It is possible to determine whether or not it has been done.

Perspective view showing the overall view of the vacuum cleaner Top view showing the entire body AA sectional view of FIG. Sectional drawing which shows the state in which the dust collecting part is not attached to the dust collecting chamber in AA sectional drawing of FIG. The enlarged view which expanded the vicinity of the dust collection part detection means in FIG. Perspective view of the dust collector detection means Perspective view of the dust collection part seen from the upper left diagonally Top view of the dust collection section viewed from above BB sectional view of FIG. Cross-sectional view of the dust collecting part inserted in the dust chamber 10 is an enlarged view of the main part of FIG. Sectional drawing which shows the state where a dust collection part is located below rather than the state of FIG. FIG. 12 is an enlarged view of the main part Cross-sectional view of the main part showing the dust collection part securely attached to the dust collection chamber

Embodiments of the present invention will be described below with reference to the drawings.
Referring to FIG. 1, the vacuum cleaner C includes a main body 10, a hose 30 having a gripping portion, an extension pipe 40, and a floor suction tool 50.
A bellows-like hose 30 that guides dust to the main body 10 is connected to the front portion of the main body 10 to the hose insertion port. Dust is coupled to the hose 30 by a coupling portion with the extension pipe 40.

A floor suction tool 50 having a floor brush or the like for directly sucking dust from the surface to be cleaned is detachably attached to the connecting portion formed at the tip of the extension pipe 40.
In addition, an exhaust port 60 is formed at the rear portion of the main body 10 for exhausting exhaust from an electric blower mounted inside.

Next, the main body 10 will be described with reference to FIGS.
The outer body of the main body 10 is composed of a lower case 11, an upper case 12, and a lid body 13 made of synthetic resin, and the main body upper case 12 and the lid body 13 are in a state in which each part is incorporated in the main body lower case 11. The main body lower case 11 is covered.

A lid body locking portion 11k that locks a lid body 13, which will be described later, and suppresses the opening of the lid body is provided on the upper part of the front portion of the main body lower case 11.
Further, the main body lower case 11 is formed with a dust collecting chamber 14 in which a dust collecting portion 20 for collecting dust sucked in the front side is formed by partitioning the inside in the front and rear directions, and a suction force is generated on the rear side. The electric blower chamber 15 in which the electric blower, the control unit, and the like are mounted is formed.

The dust collection chamber 14 is surrounded by walls formed in the lower case 11 in the front, rear, left and right, and an upper opening 18 for taking in and out a dust collection unit 20 described later is opened in the upper part.
The front wall 16 of the dust collection chamber 14 is formed with a front opening 16 serving as an intake port for taking up dust, and the inner wall 17 separating the dust collection chamber 14 and the electric blower chamber 15 is disposed on the inner wall 17. A circular rear opening 17r is formed as an air passage through which air from which dust has been removed in the chamber 14 flows to the electric blower chamber 15.

  The dust collection chamber 14 is provided with a dust collection portion 20 having a cyclone portion as a container for separating sucked air and dust and storing the dust. Further, the upper opening 18 for attaching / detaching the dust collecting part 20 to / from the dust collecting chamber 14 is covered with a lid 13 so that the upper part can be freely opened and closed.

The lid 13 is provided with a protruding portion 13a extending downward in a portion overlapping with the front side of the dust collecting chamber 14 in the state where the lid 13 is closed.
Further, when the lid 13 closes the upper opening 18 at the position on the front side of the protrusion 13 a of the lid 13, the lid 13 is latched by the lid latching portion 11 k of the main body case 11. A locking portion 13b that suppresses the opening is formed.

Next, the dust collection part detection means 19 is demonstrated with reference to FIGS.
The dust collection part detection means 19 is a part integrally formed of a synthetic resin, and has a left and right width that is the same as or larger than the width of an opening that forms an air passage 21b formed in the dust collection part 20 described later. ing.
The front upper part 19a of the dust collecting part detection means 19 is formed as a plane, the front lower part 19b is a front projecting part 19c projecting forward from the plane of the front upper part, and a convex part 19d projecting downward from the front projecting part. It is the shape which has.

  Next, the outer surface 19f of the rear upper part 19e of the dust collecting part detection means 19 has a shape that swells rearward from the upper part to the lower part, is formed of a gentle curved surface, and is positioned below the upper surface part 19g having an upper predetermined width. Is formed with a concave portion 19h (that is, the upper surface portion 19g is a portion sandwiched between the upper end of the dust collecting portion detecting means 19 and the portion where the concave portion 19h is formed).

Next, the rear lower portion 19i of the dust collection portion detection means 19 is formed with an inclined surface 19j that enters the lower inner side of the dust collection portion detection means 19 (that is, the inclined surface 19j is formed by the dust collection portion detection means 19). It is a shape formed by chamfering the rear lower portion 19i.)
Further, the dust collecting portion detecting means 19 has shaft portions 19k formed at both left and right ends.
The shaft portion 19k, the inclined surface 19j, and the front protruding portion 19c have the front protruding portion 19c positioned on the front side of the shaft portion 19k and the inclined surface 19j positioned on the rear side of the shaft portion 19k.

Thus, the dust collection part detection means 19 with which each part was comprised is attached to the recessed part 11a formed in the periphery of the upper opening part 18, and the position of the front part side of the lower case 11 as follows.
Bearing portions (not shown) are formed on the left and right wall surfaces of the recess 11a. The left and right bearing portions are pivotally supported by the left and right shaft portions 19k of the dust collection portion detection means 19, whereby the dust collection portion detection means 19 is attached to the lower case 11 so as to be pivotable back and forth.

At this time, a portion where the inclined surface 19j is formed and a part of the rear upper portion 19e are located inside the upper opening 18 (that is, inside the dust collecting chamber 14).
That is, a part of the rear part of the dust collection part detection means 19 protrudes inside the upper opening 18 (that is, inside the dust collection chamber 14).

Further, a spring S is provided between the front projecting portion 19c of the dust collecting portion detecting means 19 and the bottom portion of the concave portion 11a with the convex portion 19d inserted therein.
The spring S is interposed between the two members in a state of being contracted from the natural length, and the dust collecting unit detecting means 19 is always pressed upward by the restoring force of the spring S. Is provided.
In addition, the dust collection part detection means 9 becomes a vertical positional relationship with the projection part 13a provided in the cover body 13 in the state which closed the cover body 13. FIG.

Next, the dust collection part 20 is demonstrated with reference to FIGS.
The dust collecting unit 20 is a container-like member configured by a dust collecting case 21 having a rear opening and a lid 22 covering the opening. The dust collecting unit 20 generates a swirling flow of air taken inside, and collects air and dust. A cyclone generator 23 for separation is provided.

The dust collecting case 21 has an air passage 21b communicating with the front opening 16 of the cleaner body 10 on the front surface 21a (upstream side of the sucked air flow). The ventilation path 21b has a cylindrical shape in which a peripheral edge 21c of a circular opening protrudes forward.
Further, a guide portion 21d protruding forward from the front surface 21a is formed above the air passage 21b. The guide portion 21d includes an upper receiving portion 21e having a width in the left-right direction and an intermediate receiving portion 21f extending from the upper receiving portion 21e to the ventilation path 21b.

The front surfaces of the upper receiving portion 21e and the intermediate receiving portion 21f of the guide portion 21d are configured to be in the same plane as the front surface (periphery of the opening) of the air passage 21b.
Further, a surface 20P configured by the front surface 21g of the upper receiving portion 21e, the front surface 21h of the intermediate receiving portion 21f, and the front surface 21i of the air passage 21b is a direction (vertical direction) in which the dust collecting portion 20 is attached to the dust collecting chamber 14. ) With respect to the front side.

Next, the lid portion 22 is configured by providing a funnel-shaped filter on the inner surface side (upstream side) of the frame body and press-fitting a flat plate-shaped filter on the outer surface side (downstream side).
Further, the lower end portion 22a of the lid portion 22 is pivotally supported by the dust collecting case 21, and the upper end portion 22b is provided with an engaging portion that engages with the dust collecting case so that the opening of the dust collecting case 21 can be opened and closed. ing.
As described above, the opening of the dust collection case 21 is configured to be openable and closable by the lid portion 22, so that dust accumulated in the dust collection portion 20 can be discharged.

Next, the relationship among the dust collection unit detection means 19, the dust collection unit 20, and the lid 13 when the dust collection unit 20 is mounted in the dust collection chamber 14 will be described.
(1) State in which dust collection unit 20 is not attached to dust collection chamber 14 FIGS. 4 and 5 show a state in which dust collection unit 20 is not attached to dust collection chamber 14.
In this state, since the dust collection part detection means 19 is pivotally supported by the lower case 11, when it is pressed upward by the spring S provided on the lower side of the front projecting part 19c, the dust collection part detection means 19 is tilted to the maximum. It becomes a state.

When the lid body 13 is closed in this state, the upper surface portion 19g of the dust collection portion detection means 19 and the projection portion 13a of the lid body 13 are in a position overlapping vertically (first state of the dust collection portion detection means 19). .
Therefore, if the lid body 13 is to be closed in this state, the upper surface portion 19g and the lid body 3 come into contact with each other in the vertical direction, so that the lid body 13 cannot be closed with respect to the main body 10.

(2) State in which dust collection unit 20 is inserted into dust chamber 14 for mounting in dust chamber 14 FIGS. 10 and 11 show a state in which dust collection unit 20 is inserted into dust chamber 14 in order to mount dust collection unit 14 in dust chamber 14 It is. 12 and 13 show a state in which the dust collection portion is further inserted into the dust collection chamber 14 in comparison with the states of FIGS. 10 and 11.
First, when the dust portion 20 is attached to the dust chamber 14, the dust portion 20 is inserted into the dust chamber 14 from the upper opening 18. At this time, since the dust detection means 19 protrudes from the upper opening 18, the dust part 20 and the dust detection means 19 come into contact with each other.

10 and 11, the dust part 20 inserted from the upper opening 18 is in sliding contact with the outer surface 19f of the dust collecting part detection means 19 and the surface 20P formed on the front surface of the dust part 20. While moving down. At this time, since the dust collection part detection means 19 is pressed by the surface 20P from back, it inclines in the front direction against the force of the spring S.
Then, referring to FIGS. 12 and 13, when the dust collection unit 20 further moves downward in the dust collection chamber 14, the dust collection unit detection means 19 is further pressed against the surface 20 </ b> P from the rear, and further forward ( The state is inclined to the arrow A).

This is because the surface 20P has a shape inclined forward. That is, since the upper surface of the lower surface of the surface 20P is positioned more forward, the position where the dust collector detection means 19 and the surface 20P contact changes from the bottom to the upper surface 20P. This is because the amount of pressing the dust collecting portion detecting means 19 increases.
Thus, as the dust collection part detection means 19 inclines forward, the spring S contracts and the spring force which returns to natural length is stored.

In addition, since the outer surface 19f of the dust collection part detection means 19 is comprised by the curved surface, the dust collection part detection means 19 and the surface 20P can be slidably contacted.
In FIG. 11, the dust collection part detection means 19 is in a state where the opening of the ventilation path 21 b is pressed, but the width in the left-right direction of the dust collection part detection means 19 is equal to the width of the opening forming the ventilation path 21 b. Since it is the same or larger, the dust collection part detection means 11 does not enter the opening of the air passage 21.

(3) State in which dust collection unit 20 is attached to dust collection unit 14 FIG. 14 illustrates a state in which dust collection unit 20 is securely attached to dust collection chamber 14.
When the dust collection chamber 14 further moves downward from the state of FIG. 13, the dust collection part detection means 19 gets over the upper receiving part 21e constituting the surface 20P, and the dust collection part detection means 19 is moved from the upper reception part 21e. , Located above.

When the dust collection part detection means 19 gets over the upper receiving part 21e, the dust collection part detection means 19 is pressed by the reaction force of the spring S, vigorously tilts backward, and an inclined surface 19j formed at the lower rear side of the dust collection part detection means 19 In contact with the upper receiving portion 20e.
And the dust collection part detection means 19 is hold | maintained in the state which contacted the upper receiving part 20e (2nd state of the dust collection part detection means 19).

At this time, in a state where the lid 13 closes the upper opening 18, the concave portion 19 h formed in the dust collecting portion detection means 19 and the protrusion 13 a provided on the lid 13 are in a vertical positional relationship.
Therefore, when the lid 13 is closed, the protrusion 13a can enter the recess 19h. In other words, the protrusion 13 a enters the recess 19 h, so that the protrusion 13 a does not come into contact with the dust collection unit detection means 19, and the lid 13 can be correctly closed with respect to the lower case 11.

  Further, when the inclined surface 19j comes into contact with the upper receiving portion 20e, an impact is given to the dust collecting portion 20 and a contact sound is generated. Thereby, when a user attaches the dust collection part 20 to the dust collection chamber 14, it can be confirmed whether the dust collection part 20 was attached reliably.

Further, when the dust collection unit 20 is attached, the dust collection unit 20 receives a force pressing backward from the dust collection unit detection unit 19 until the dust collection unit detection unit 19 gets over the upper receiving unit 21e. And after the dust collection part detection means 19 gets over the upper receiving part 21e, the dust collection part 20 receives the force pressed downward from the dust collection part detection means 19. FIG.
Thereby, from the change of the direction of the force applied to the dust collection unit 20, when the user installs the dust collection unit 20, it is possible to obtain a feeling of mounting mounted at the correct mounting position of the dust collection chamber 14.
In addition, when the dust collection unit 20 is mounted in the dust collection chamber 14, the dust collection unit 20 receives a downward pressing force from the dust collection unit detection means 19, and is thus reliably held inside the dust collection chamber 14. .

  As described above, in the present embodiment, the dust collection unit 20 has been described as a cyclone type, but a paper pack that holds dust inside may be used.

C vacuum cleaner, 10 body, 20 dust collecting part 30 hose 40 extension pipe 50 floor suction tool, 11 lower case, 12 upper case, 13 lid, 14 dust collecting chamber 15 electric blower room, 16 front opening, 17 Inner wall, 18 upper opening,
19 Dust collector detection means

Claims (3)

A main body formed with a dust collection chamber having an opening;
A dust collection unit detachably mounted in the dust collection chamber from the opening;
A lid for opening and closing the opening;
Have
The main body is provided with a dust collection part detection means in a state of being pressed by the elastic member and protruding into the opening,
The dust collection portion is provided with a protruding guide portion that comes into contact with the dust collection detection means when mounted in the dust collection chamber,
The lid is provided with a protrusion for preventing the lid from closing the opening by contacting the dust collection detection means when the dust collection unit is not mounted in the dust collection chamber. ,
When the dust collection unit is mounted in the dust collection chamber, the guide unit comes into contact with and presses the dust collection unit detection unit, so that the dust collection unit detection unit retreats from the passage region of the dust collection unit. And
When the dust collecting part reaches the mounting position of the dust collecting chamber, the dust collecting part detecting means gets over the guide part, and the dust collecting part detecting means is held at a position not in contact with the protruding part. An electric vacuum cleaner.   The vacuum cleaner according to claim 1, wherein a part of the dust collection part detection unit that is in contact with the guide part is configured by a curved surface.   3. The dust collection unit detection unit according to claim 1, wherein when the dust collection unit detection unit gets over the guide unit, the dust collection unit detection unit is pressed by a reaction force of the elastic member and contacts the dust collection unit. The electric vacuum cleaner in any one.

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