JPH0392122A - Electric suction cleaner - Google Patents

Abstract

PURPOSE:To surely prevent a dust-collecting bag from being not mounted, by a method wherein the title cleaner is formed so that a dust cover can not be closed on the upper opening of a dust-collecting chamber, by the interposition of a lever part in a mouth plate-detecting device, even if a fitting plate is, by mistake, mounted on the dust-collecting chamber, without the dust-collecting bag. CONSTITUTION:An electric fan is held at the rear of a cleaner body 1, and a dust-collecting chamber 5 opened or closed with a dust cover 6 having a suction part 8 is provided in front thereof. A fitting plate 16 for a mouth plate 15 of a dust-collecting bag is also removably mounted on the upper opening of the dust-collecting chamber 5. On its fitting plate 16, a cut part 23 where a part of the mouth plate 15 is exposed, is provided and a mouth plate- detecting device 30 is located on the inside of the dust cover 6. For its detecting-device 30, a slidable detecting part 33 and a lever part 36 are provided. On the detecting part 33, force is applied so that one end thereof is in contact with the mouth plate 15 at the cut part 23. The lever part 36 is operated together with the detecting part 33, and when the mouth plate 15 is not placed, the lever part 36 is interposed between the dust cover 6 and the top of the side wall of the dust-collecting chamber 5, and hence the dust cover 6 can not be closed. As the result of this, it can be surely prevented that the dust-collecting bag is not mounted by mistake.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vacuum cleaner equipped with a dust collection chamber to which a dust collection bag is detachably attached. (B) Conventional technology A dust collection bag such as a disposable paper dust collection bag is detachably installed in the dust collection chamber due to the ease of disposing of the dust collected in a vacuum cleaner and the fact that dust does not fly up. There is. With this product, if you forget to attach the dust collection bag to the dust collection chamber, there is a risk that the dust will be sucked into the electric blower and the electric blower will overheat and catch fire, or the electric blower may become unable to rotate and break the vacuum cleaner. A means to prevent forgetting to attach a dust collection bag is required. As a means of preventing this, for example,
There is a device disclosed in Japanese Patent No. 230134, but in this device, the cam body that prevents the dust collection lid from being blocked when the dust collection bag is forgotten to attach does not touch the opening of the dust collection bag in a dotted manner, but instead forms a line. Because it slides into contact with the opening sheet while pressing down on it, it cannot accurately detect the presence or absence of the dust collection bag, and it does not operate accurately, especially if the surface of the opening sheet is not smooth or uneven. The problem is that the dust collection lid may not close even when the dust collection bag is attached, and is easily affected by the condition of the white plate of the dust collection bag.

(C) Problems to be Solved by the Invention The present invention provides a vacuum cleaner in which a dust collection bag is removably installed in a dust collection chamber that is opened and closed by a dust collection lid equipped with a suction port. A simple mechanism prevents forgetting to put it on regardless of the blank state, and the dust collection chamber is made as wide as possible to increase the amount of dust collected.

(2) Means for Solving the Problems The vacuum cleaner of the present invention houses an electric blower in the rear of the vacuum cleaner body, and has a dust collection chamber in the front that can be opened and closed by a dust collection lid equipped with a suction port. Also, a mounting plate for a dust collection bag eye plate is removably installed in the upper opening of the dust collection chamber, and the mounting plate is provided with a cutout portion through which a part of the opening plate is exposed, and the A mouth plate detection member is provided on the back surface of the dust collecting lid, and the detection member is interlocked with a slidable detection part whose one end is biased so as to come into contact with a batten in the cut arrow part, and the detection part. and a lever portion that is interposed between the dust collecting lid and the upper end of the side wall of the dust collecting chamber to prevent the dust collecting lid from closing when the opening plate is not present. It is said that

Furthermore, the structure is characterized in that the lever part is provided with a hook part facing the upper end of the side wall of the dust collection chamber.

(E) Operation Even if the mounting plate without the eye plate of the dust collection bag is stored in the dust collection chamber and the dust collection lid is closed, the opening plate detection member of the dust collection lid will not be detected in the notch of the mounting plate. The detection part slides in and
The lever part is interposed between the dust collection lid and the upper end of the side wall of the dust collection chamber, so that the dust collection lid does not lift up and close.

Even if you try to close the dust collection lid without storing the mounting plate in the dust collection chamber, the detection part will drop in the same way as above and the other end will be interposed between the dust collection lid and the upper end of the side wall of the dust collection chamber, causing the dust collection The lid lifts up and does not close properly.

When the mounting plate with the opening plate of the dust collection bag attached is stored in the dust collection chamber and the dust collection lid is closed, the detection part will come into contact with the opening plate in the notch, so the lever part of the opening plate detection member will close the dust collection lid. There is no interposition between the dust collecting lid and the upper end of the side wall of the dust collecting chamber, and the dust collecting chamber is completely closed off.

Since the detection section is slidable, it abuts the opening plate in a dotted manner, and therefore accurately detects the presence or absence of the opening plate regardless of the state of the opening plate. Furthermore, the hook portion provided on the lever portion ensures that the lever portion is interposed between the dust collection lid and the upper end of the side wall of the dust collection chamber.

(f) Example The vacuum cleaner of the present invention will be explained below based on the example shown in the drawings.

(1) is a canister-type vacuum cleaner, with the lower case <2
〉 and the upper case (2〉) which closes the upper half of the lower case (2〉)
3), an electric blower (not shown), etc. is housed in the lower part of the upper case (3), and an upper opening (4) for discarding dust is provided in the front half of the lower case (2). A dust collection chamber (5) is formed.

<6> is a dust collection lid that can be opened and closed to cover the upper opening <4> of the dust collection chamber (5); (8) is a suction port for connecting a suction hose provided in the center of the dust collection lid (6), which can be opened and closed by a suction port shutter plate (9). (10) is a handle storage recess on the top surface of the dust collection lid (6). (11> is a buffer member that also serves as a seal packing and is installed along the upper opening edge of the lower case (2); The upper case (3) and the dust collection chamber (6)
〉 and the lower case (2〉) are kept airtight.
2) is a parts storage chamber cover which covers the parts storage chamber recessed in the rear part of the upper surface of the upper case (3) so as to be openable and closable.

(13>ti) A paper dust collection bag that is housed in the dust collection chamber (5) and separates and stores dust from the suction airflow, and has a mouth plate (15) with a hose pipe loose insertion hole (14). is glued to the bag opening.

(16) is a mounting plate for attaching the opening plate (15>) of the dust collection bag (13>), which has a hose tube insertion hole (17>) that communicates with the loose insertion hole (14>) and a take-out handle at the rear. Left and right engagement inclined walls (19) (19) having protruding pieces (18) and extending downwardly toward the rear on both left and right sides;
, an engaging slope wall (20) is formed on the front side, and a mouth plate hooking part (21) for hanging the front end of the mouth plate (15) is formed on the front part of the back side, The handle piece (1
8) A batten clamp member (22) is provided at the rear side position to hook the rear end of the mouth plate (15).Then, the mounting plate (16) is provided with a batten plate clamp member (22) in the vicinity of the hose tube insertion hole <17>. A notch (23) is provided to expose a part of the opening plate (15) when the opening plate (15) is mounted in pressure contact with the back surface of the mounting plate (16).

The dust collection lid (6) has a double lid structure consisting of an outer lid (6a) and an inner lid (6b), and further includes an outer lid (6a) and an inner lid (6b).
6b> has a radial tongue valve (24) communicating with the suction port (8), and the radial tongue valve <24> has a mounting plate located on the back side of the inner lid (6b>).・Cooking (25)
have.

In the dust collection chamber (5), <26> is a front wall surface constituting the front standing earth wall, and (27> is a lip that supports the mounting plate (16), which is provided on both left and right side wall surfaces (28) (2B). ing.

(29) is the seal packing/buffer member (11) formed on a part of the upper end (26a) of the front wall surface (26).
This is a locking pin that holds the mounting plate (16) in place, and also serves to position the mounting plate (16).

When the dust collection lid (6) is closed, the mounting plate (16)
〉 hose tube insertion hole (17〉 peripheral part is the suction port 〈8〉)
〉It is press-fitted to the dust collecting lid (6) so as to be in close contact with the lower inner lid (6b) via the mounting plate packing (25〉).

30) is the suction port (8> front 1
! A batten detection member for detecting the presence or absence of a dust collection bag provided in the vicinity of v, which has a hemispherical contact surface portion (31) at the lower end for contacting the opening plate <15>, and a pivotable member at the upper end. a rod-shaped sliding detection body (33>) having a piece (32>); and a rotation shaft (35) rotatably supported in the pivot hole (34>) of the pivot piece (32).
on the upper side, and a lever body 36〉 integrated with the detection body 33〉, and a spring retaining lip (38〉) in the recess (37) provided in the inner lid (6b). and the spring insertion part (39) of the detection body (33), and is biased downward by the Subunong spring (40) fitted between the spring insertion part (39) of the detection body (33) and the detection body play through hole (41>) and the lever body play through hole ( 4
2) is supported by a cover (43>) having a cover plate (43>), and the opening plate detecting member (30>) is slidably slidable in the vertical direction, and the contact plate (40) is supported by a cover (43>). The surface portion (31) is urged to abut against the opening plate (15) within the notch (23) of the mounting plate (16),
In addition, when there is no opening plate (15), the lever body (36) is configured to fit into the notch (23), and the lever body (36) rotates in conjunction with the sliding movement of the detection body (33), and When there is no opening plate (15) in part <23>, the inner lid (6b)
) and the upper surface of the abutment bin (44> provided near the upper end (26a) of the front wall surface (26>) and the upper surface of the locking pin (29) to close the dust collection lid (6). However, the dust collection lid (6) should be raised from the top opening (4) so that it cannot be closed.

The lever body (36) has the front wall surface (26).
It has a latching protrusion (45>) facing the upper end (26a), and the protrusion 45 faces the upper end (26a) via the buffer member (11>) and By getting between the contact bottle (44) and the locking pin (29), even if the lever body (36) slides back and forth due to excessive pressure on the dust collecting lid (6), etc., the locking pin (29) will not lock. The lever body (36) is latched onto the locking pin (29>) or the abutment pin (44) to prevent the lever body (36) from coming off the upper end (26a), and therefore the lever body (36) is prevented from coming off from the upper end (26a) when the mouth plate (15> is not present). The inner part (6b) of the body (36) and the front wall surface (
26) Even if excessive pressing force is applied to the dust collecting lid (6), the dust collecting lid (6) is secured by interposing the lid (6) securely between the upper end (26a) and the upper end (26a).
> is not closed.

Therefore, when replacing the paper dust collection bag (13), etc., attach the batten plate <15> to the mounting plate <16> and replace the said mounting plate (16).
) is installed in the top opening (4) of the dust collection chamber (5) and stored in the dust collection chamber (5) together with the mounting plate (16), and when the dust collection lid (6) is closed, the opening plate detection member The contact surface portion (31) of the sliding detection body (33) of (30) slides to the mounting plate (1).
6) The lever body (36) comes into contact with the opening plate (15) exposed from the notch (23>) and enters the dust collection chamber (5), so the dust collection lid (6) C is completely closed. On the other hand, store the mounting plate (16> where you forgot to attach the dust collection bag (l3)) in the dust collection chamber (5), or put the mounting plate (16> itself in the dust collection chamber (5)). Even if you forget to store it and close the dust collection lid (6), the contact surface (31>) will enter the notch (23>) or fall into the dust collection chamber (5>), so the lever body (36>) will not close. Dust collection lid (6) and dust collection chamber (5> front wall surface (26)
> as a result, the dust collection lid (6) does not close,
This is to notify the user, but even if the user does not notice at this stage and starts using the vacuum cleaner, air will enter through the gap between the dust collection lid (6) and the dust collection chamber (5) and suck up dust. This prevents dust from flowing into the electric blower.

(G) Effects of the Invention According to the present invention, even if a mounting plate in which a dust collection bag has been forgotten to be attached is attached to the dust collection chamber, the lever portion of the batten detection member prevents the dust collection lid from moving into the dust collection chamber. The top opening cannot be blocked, and this notifies the user that they have forgotten to store the dust collection bag, preventing them from forgetting to store it, and even if the dust collection bag is used without being attached, dust will not be inhaled. This prevents dust from flowing into the electric blower and causing it to catch fire due to overheating, or to become unable to rotate and break down.Furthermore, since the opening plate detection member is provided on the dust collection lid, it is possible to effectively inspect the inside of the dust collection chamber. It is an easy-to-use electric cleaner that can be used for a long period of time, and can be used for a large amount of dust, and the detection part of the opening plate detection member simply contacts the dust collection bag's batten in a dotted manner, and there are few failures. You can get a chance.

[Brief explanation of drawings]

The drawings all relate to embodiments of the vacuum cleaner of the present invention; Fig. 1 is a perspective view with the dust collection lid open, Fig. 2 is a perspective view, and Fig. 3 is a perspective view of the main parts with the mounting plate removed. Figure 4 is a perspective view of the mounting plate with the paper dust collection bag attached, Figure 5 is a sectional view taken along line A-A in Figure 2 when the paper dust collection bag is attached, and Figure 6 is the paper dust collection bag. FIG. 2 is a sectional view taken along the line AA when the dust bag is not attached, and FIG. 7 is an exploded perspective view of the main parts including the mouth plate detection member. (1)... Vacuum cleaner body, (5>... Dust collection chamber, (6)
...Dust collection lid, (13)...Paper dust collection bag, (15>・
... Mouth plate, (l6) ... Mounting plate, (23> ... Notch, (30) ... Mouth plate detection member, (33) ... Sliding detection body (detection part), ( 36>...Lever body (lever part), (45>...Latching protrusion (latching part).

Claims (2)

[Claims] (1) An electric blower is housed in the rear of the vacuum cleaner body, and a dust collection chamber is located in the front that can be opened and closed with a dust collection lid equipped with a suction port, and a dust collection bag has an opening in the top opening of the dust collection chamber. The device is equipped with a detachable mounting plate, the mounting plate is provided with a notch through which a part of the opening plate is exposed, and an opening plate detection member is provided on the back side of the dust collecting lid, and the detection The member includes a slidable detection part whose one end is biased to come into contact with the opening plate in the notch, and a member that moves in conjunction with the detection part and contacts the dust collection lid when the opening plate is not present. A vacuum cleaner comprising: a lever part interposed between the upper end of the side wall of the dust collecting chamber and preventing the dust collecting lid from being blocked. (2) The vacuum cleaner according to claim 1, wherein the lever portion is provided with a hook portion that faces the upper end of the side wall of the dust collection chamber.