JP4222102B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner provided with a detachable dust collecting case.
[0002]
[Prior art]
In a vacuum cleaner that is detachable from the vacuum cleaner body and has a dust collection case that collects sucked dust, the vacuum cleaner body is not attached or is not set correctly in the vacuum cleaner body Then, when the cleaner body is operated, the sucked dust flows into the electric blower and causes a failure. In order to prevent this, conventionally, a detection lever body that detects the presence or absence of a dust collection case is provided, and the lever body is rotated in the front-rear direction of the main body (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-4-36783
[Problems to be solved by the invention]
However, in such a type in which the detection lever body rotates in the front-rear direction, the rotation direction of the main body lid and the rotation direction of the detection lever body are the same. As a result, the operation is unstable and there is a problem in reliability.
[0005]
This invention solves the said subject, and it aims at providing the vacuum cleaner provided with the dust collection case detection means with a compact and high reliability.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a main body incorporating an electric blower that generates suction air, a concave portion formed in front of the main body, dust that is detachably attached to the concave portion and sucked. a dust collecting case for collecting a body lid one end is rotatably supported on the top rear of the main body cover openably the dust collection casing, rotatably provided on a side of the body cover the and a detection means for detecting the presence or erroneous mounting of the dust-collection case, the detection means, together with the pivot axis constitutes the rotation center line Ryakujika intersect each of said body cover, from the rotation center When the main body lid is closed with the dust collecting case mounted in the recess, the tip is disposed on the dust collecting portion. The detection means rotates by contacting the case, and in front of the contact portion. It can be closed to prevent contact with the main body, and when the main body lid is closed in a state where the dust collecting case is not attached to the concave portion, the contact portion can be contacted with the main body and closed. Since the rotation center line of the detection means and the rotation center line of the main body lid are substantially orthogonal to each other, errors in the rotation trajectory dimensions of both parts are accumulated in the same direction. As a result, the operation is stable and the reliability can be improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided a main body including an electric blower for generating suction air, a concave portion formed in front of the main body, and dust that is detachably attached to the concave portion and sucked. a dust collecting case for collecting a body lid one end is rotatably supported on the top rear of the main body cover openably the dust collection casing, rotatably provided on a side of the body cover the and a detection means for detecting the presence or erroneous mounting of the dust-collection case, the detection means, together with the pivot axis constitutes the rotation center line Ryakujika intersect each of said body cover, from the rotation center When the main body lid is closed with the dust collecting case mounted in the recess, the tip is disposed on the dust collecting portion. The detection means rotates by contacting the case, and the book of the contact portion is Abutment preventing and close it is possible to to, the dust collection case has closed the main cover in a state of not being mounted in the recess, the abutting portion can not be closed in contact with the body In this way, since the rotation center line of the detection means and the rotation center line of the main body lid are substantially orthogonal, errors in the rotation trajectory dimensions of the two parts in the same direction are not accumulated. As a result, the operation is stabilized and the reliability can be improved.
[0008]
【Example】
(Example 1)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0009]
1 and 2, a vacuum cleaner 1 includes a vacuum cleaner main body 7 (hereinafter referred to as a main body 7), a hose joint 5 having a hose joint 5 at one end and a hand handle 4 at the other end, and the hand handle. 4 has an extension pipe 2 connected at one end, and a suction tool 3 connected to the other end of the extension pipe for sucking dust. The hose joint 5 of the hose 6 is connected to an intake port 20 provided in the front portion of the main body 7.
[0010]
In the main body 7, one front wheel caster 8 and a pair of rear wheels 9 are rotatably provided.
[0011]
In FIG. 2, reference numeral 10 denotes a main body lid having a rotation shaft 22 at one end, and the rotation shaft 22 is rotatably supported at the upper rear of the main body 7. 11 is a recess formed in front of the main body 7, and 12 is a dust collector that separates dust from the air sucked from the suction tool 3 and reaches through the extension pipe 2 and the hose 6 and collects the dust. The dust collection case 12 is detachably attached to the recess 11.
[0012]
In FIG. 3, the substantially central portion of the main body lid 10 is formed of a semi-transparent material as indicated by the grid-like oblique lines, and the dust collecting case 12 attached to the recess 11 can be seen from the outside. . Note that a dust collection case detection lever 21 described later is disposed at a position away from the translucent portion, that is, a position that cannot be seen from the outside.
[0013]
Further, an electric blower 13 for generating suction air is incorporated behind the recess 11 of the main body 7. The suction side of the electric blower 13 communicates with the recess 11 through the air suction portion 14. The air suction portion 14 is surrounded by an inclined seal surface 15 that comes into contact with the dust collection case 12 when the dust collection case 12 is housed in the recess 11.
[0014]
An exhaust filter 16 is provided behind the main body 7, and the exhaust from the electric blower 13 is discharged to the outside through the exhaust filter 16. Still other components on the main body 7, i.e. the or electrical components such as the control unit 17 for controlling the power consumption or the like of the electric blower 1 3, wherein the electric blower 1 3, code (not allowed to supply electricity to the control unit 17, etc. A cord winder (not shown) or the like that winds
[0015]
A front wall 18 of the main body 7 rises from a bottom wall 19, and the bottom wall 19 is a lower end surface of the recess 11. An air inlet 20 for detachably connecting the hose joint 5 is provided at a substantially central portion of the front wall 18. 20a is a seal packing, it is attached to the recess 1 1 side end face of the air inlet 20, thereby preventing air leakage between the air inlet 20 and the dust collecting case 1 2.
[0016]
Next, the details of the dust collection case detection lever 21 which is detection means for detecting the presence or absence of the dust collection case 12 which is a feature of the present invention will be described. As shown in FIGS. 2 and 3, one end of the dust collecting case detection lever 21 is pivotally supported by the main body lid 10 and is orthogonal to the rotation center line of the rotation shaft 22 of the main body lid 10. A rotation shaft 23 (having a shaft center in the front-rear direction of the main body) having a line as a rotation center is provided, and the other end is in contact with the dust collection case 12 to detect the dust collection case 12 A leading end 24 is provided.
[0017]
On the other hand, the upper part of the dust collection case 12 is formed in a substantially arc shape so as to increase toward the center, and the tip 24 of the dust collection case detection lever 21 is located on the upper part of the dust collection case 12 when the body lid 10 is closed. The dust collection case detection lever 21 is accommodated in the gap between the dust collection case 12 and the main body lid 10 when the main body lid 10 is in a state of being completely closed with contact.
[0018]
The rotating shaft 23 of the dust collecting case detection lever 21 is positioned outside the main body 7, and the tip 24 thereof is rotated in the vertical direction inward from the axis center of the rotating shaft 23. It is regulated. In a state where the dust collection case 12 is removed, the tip 24 of the dust collection case detection lever 21 is substantially lowered in accordance with the shape of the upper end of the main body 7 that forms the concave portion 11 of the main body 7 at the position where the tip 24 is lowered by its own weight. An abutting portion 25 formed in an L shape is formed on a part of the dust collection case detection lever 21.
[0019]
Further, the tip end portion 24 of the dust collection case detection lever 21 has a substantially spherical shape, and the dust collection case detection lever 21 is provided substantially symmetrically on both sides of the main body lid 10.
[0020]
The operation and action of the above configuration will be described.
[0021]
First, when the dust-collection case 12 is set correctly in the recess 11 of the body 7, the distal end portion 24 of the dust collection case sensing lever 21 which is attached to the main body lid 10 when closing the main body lid 10 is the dust collecting It abuts on the upper part of the case 12 and gradually rotates so as to approach the top surface of the main body lid 10 while sliding up the outer wall of the dust collecting case 12. When the main body lid 10 is completely closed, the main body lid 10 is accommodated in a space (gap) formed between the main body lid 10 and the dust collecting case 12.
[0022]
On the other hand, when the dust collection case 12 is not set in the main body recess 11 or when it is not set normally, the dust collection case detection lever 21 is rotated by its own weight and the contact portion 25 is moved to the main body. 7, the main body lid 10 is not fully closed.
[0023]
In the above-described configuration, the rotary shaft 23 (the longitudinal direction of the main body) is pivotally supported by the main body lid 10 and has a center line orthogonal to the rotation center line of the rotary shaft 22 of the main body lid 10 as a rotation center. And the other end is provided with a tip 24 which is in contact with the dust collecting case 12 and detects the dust collecting case 12, so that the tip in the same direction. The error of the rotation trajectory dimension between the portion 24 and the main body lid 10 is not accumulated, and as a result, the operation is stabilized and the reliability can be improved.
[0024]
Further, in the above configuration, the position where the dust collection case detection lever 21 hits behind the dust collection case 12, that is, the position closest to the center line of the rotation shaft 22 of the main body lid 10 within a range where the dust collection case 12 can be touched. The dust collection case detection lever 21 can detect the dust collection case 12 at an earlier stage, and the influence of rattling on the manufacture and assembly of the main body lid 10 can be minimized.
[0025]
Further, the dust collection case sensing lever 21 as shown in FIG. 6, by attaching the spring 26 to be urging body for urging the tip 24 downward, rotated by the weight of the dust collection case sensing lever 21 itself You can be more reliable than what you do.
[0026]
In particular, as shown in FIGS. 7, 8, and 9, when the spring 26 is entangled with the dust collection case detection lever 21, the assemblability to the main body lid 10 is greatly improved.
[0027]
Further, as shown in FIG. 10, when the dust collecting case detection lever 21 is in the same position as the dust collecting case 12 when the main body lid 10 is closed, the dust collecting case 12 is slightly displaced. Even when the main body lid 10 is completely closed, the dust collecting case detection lever 21 works to correct the dust collecting case 12 to a normal position.
[0028]
(Example 2)
Next, a second embodiment of the present invention will be briefly described with reference to FIGS.
In the first embodiment, the dust collection case detection lever 21 is provided only on the main body lid 10 side as a sensor for detecting the presence or absence of the dust collection case 12, but in this embodiment, the dust collection case 11 is also installed in the main body recess 11. A sensor for detecting the presence or absence of the case 12 is provided. Specifically, when the dust collection case 12 is normally set, a micro switch 27 is installed at a position where the dust collection case 12 can be detected, and the dust collection case The presence or absence of 12 is electrically detected. As a result, the options for the location of the microswitch 27 are widened, and when necessary, the microswitch 27 and the electric blower 13 are electrically linked to each other so that the electric blower 13 can be used when the dust collecting case 12 is not attached. The function of the vacuum cleaner can be enhanced, for example, by making it impossible to operate.
[0029]
【The invention's effect】
As described above, according to the present invention, it is possible to reliably detect the presence or absence of a dust collection case and provide a highly reliable electric vacuum cleaner.
[Brief description of the drawings]
1 is an overall perspective view of a vacuum cleaner showing a first embodiment of the present invention. FIG. 2 is a side sectional view of a main body of the vacuum cleaner. FIG. 3 is a sectional view taken along line AA in FIG. [Fig. 5] Enlarged view of portion B of Fig. 3 [Fig. 5] Enlarged view of portion B of Fig. 3 (when there is no dust collecting case)
6 is an enlarged view of a main part showing another example of the present embodiment. FIG. 7 is an enlarged view of a main part showing another example of the present embodiment. FIG. 8 is a perspective view of the dust collecting case detection lever in FIG. FIG. 9 is an opposite perspective view of the dust collecting case detection lever. FIG. 10 is a sectional view showing another example of the present embodiment. FIG. 11 is a side sectional view of a vacuum cleaner showing a second embodiment of the invention. FIG. 12 is an enlarged cross-sectional view of the main part of the vacuum cleaner.
7 Body 10 Body lid 12 Dust collection case 13 Electric blower 21 Dust collection case detection lever (detection means)
24 Tip (detector)
26 Spring (biasing body)
27 Microswitch (detection means)

Claims (1)

A main body incorporating an electric blower for generating suction air ; a recess formed in front of the main body; a dust collecting case that is detachably attached to the recess and collects sucked dust; A main body cover that is pivotally supported at the upper rear of the main body and covers the dust collection case so as to be openable and closable , and is rotatably provided on the side of the main body cover to detect the presence or absence of the dust collection case. and a detection means, said detection means, with the rotation center line constitutes the main body lid of pivot axis and Ryakujika intersect each rotational shaft and the tip portion provided inward from the rotation center When the body cover is closed with the dust collection case mounted in the recess, the detection means rotates when the front end portion contacts the dust collection case. The contact portion is prevented from contacting the main body and closed. The collecting the dust case is closed the body cover in a state of not being mounted in the recess, an electric vacuum cleaner in which the contact portion is prevented can be closed in contact with the body.

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