JPH0126358Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a vacuum cleaner, and particularly to a vacuum cleaner that prevents forgetting to attach a dust collection filter.

BACKGROUND ART Conventionally, there has been a vacuum cleaner that collects dust using a negative pressure generated by an electric blower by setting a dust collection filter in a dust collection case. Some vacuum cleaners of this type have a means to prevent the lid from being fixed to the dust collection case when the filter is not installed, in order to prevent dust from adhering to the electric blower due to forgetting to install the dust collection filter. There are things that I have.

As a means for preventing the lid from being fixed, for example, Japanese Utility Model Application No. 52-42573 discloses a stepped portion 39;
A cam 16 is disclosed in Japanese Patent No. 45453.

Problems to be Solved by the Invention However, in the conventional vacuum cleaner described above, members such as the stepped portion 39 and the cam 16 are brought into contact with the lid before the lid is completely closed, and the closing of the lid is directly controlled. Since the lid is configured to prevent this, the lid is supported in a slightly floating state with respect to the opening of the dust collection case. If the lid is forced to close in this state, there is a risk of damaging the lid or the member that comes into contact with the lid.

Further, since the stepped portion 39 or the cam 16 is provided on the dust collection case side, there is a possibility that it may become an obstacle when the lid is opened and the dust collection filter is attached or removed.

Purpose of the invention This invention was made in view of the above problems, and is designed to eliminate the risk of damage to the lid even when the lid is forcibly closed without a dust collection filter attached. To provide a vacuum cleaner in which a means for preventing the fixing of a dust collecting filter does not interfere with mounting and removing a dust collecting filter.

Means for Solving the Problems This invention is to install a dust collection filter removably from the opening into the dust collection case, attach a lid that closes the opening to the dust collection case so that it can rotate, and attach the dust collection filter to the dust collection case from the free end of the lid. In a vacuum cleaner that fixes a lid by locking a lid clamp attached to a dust collection case to a locking part formed in the locking part, a check lever is elastically biased so that one end of the lid is locked to the locking part. The middle part of the lid is rotatably attached to the free end of the lid, and an engagement prevention part is provided at one end of the check lever to prevent the lid clamp from engaging with the locking part when the lid clamp is locked with the locking part. An operating part is formed at the other end of the check lever to rotate the check lever so as to contact the dust filter when the lid is closed and move the engagement prevention part away from the locking part against the biasing force. It is characterized by what it did.

Effect According to the above configuration, when the dust collection filter is installed in the dust collection case, the operating part of the check lever comes into contact with the filter when the lid is closed, and the engagement prevention part moves away from the locking part. Leave. Therefore, the lid clamp can be locked to the locking portion, and the lid is fixed in the closed state.

If a dust filter is not installed,
Since the operating part of the check lever does not come into contact with the dust filter, the engagement preventing part remains engaged with the locking part even when the lid is closed. Therefore, the lid clamp is prevented from locking into the locking portion, and the lid is not fixed.

Embodiment of the Invention Next, a vacuum cleaner according to the invention will be described in detail with reference to the drawings showing an embodiment of the invention.

In FIG. 1, reference numeral 1 indicates a vacuum cleaner formed in the shape of an elongated case, and reference numeral 2 indicates a storage case provided in the vacuum cleaner 1. As shown in FIG. This storage case 2 stores the electric blower 3 and also
A suction portion 2a is provided on the right side in the figure, and a rear wheel 2b is provided on the bottom surface.

4 is a dust collection case provided adjacent to the suction portion 2a side of the storage case 2, and 4a is a caster provided on the bottom surface of the dust collection case 4. The dust collection case 4 has an opening 5 at the top and a contact section 6 at the bottom with which the dust collection filter 21 comes into contact. Further, on the left side of the contact portion 6 in FIG. 1, there is provided a mounting portion 7 in which a suction hole 7a is formed. A lid clamp 30 is rotatably attached to the inside of the attachment portion 7 so that the claw portion 32 projects outwardly through the guide port 8 . This lid clamp 3
0 is for locking the lid 9 that closes the opening 5.

The dust filter 21, which is removably attached to the dust collection case 4 through the opening 5, has a cup-shaped dust filter body 22 with many small holes, and an airtight filter body 22 provided on the upper edge of the cup-shaped dust filter body 22. It is composed of packings 23 and 24 made of an elastic material such as rubber, and a bag-shaped dust collecting paper filter 28 held within the dust collecting filter main body 22.

In addition, the packing 23 and 24 are inserted into the insertion opening 2.
3a, 24b are fitted and fixed to outer flange-shaped insertion portions 22a, 22b formed on the dust collecting filter main body 22, and the arcuate contact portion 23
b, 24a are formed respectively. Further, the packing 23 is formed with a mounting section 25 that is mounted on the mounting section 7 when the dust collecting filter 21 is mounted.

Reference numeral 27 in the figure indicates a pair of locking claws provided on the dust collecting filter body, and as shown in FIG.
is attached to attach the dust collecting paper filter 28 to the dust collecting filter main body 22.

The lid 9 has a fulcrum 10 loaded with a spring (not shown).
It is rotatably attached to the dust collection case 4 via the holder, and is biased toward the open side. Ribs 11 and 12 are formed on the inside of the lid 9 to elastically contact contact portions 23b and 24a of the packings 23 and 24 to prevent the dust filter 21 from lifting when the lid 9 is closed.

Further, at the free end of the lid 9, an L-shaped locking portion 15 is formed as a locking portion for locking the lid clamp 30, and a bearing body 13 for pivotally supporting the check lever 16 is formed. ing. Note that the lid clamp 30 is biased by a coil spring 33 in the direction of engagement with the locking portion 15 .

The check lever 16 connects to the bearing portion 13 of the bearing body 13 via a rotating shaft 19 provided at an intermediate portion thereof.
a, and is resiliently biased by a spring 20 wound around the rotating shaft 19 so that the engagement prevention part 17 formed at one end is engaged with the L-shaped locking part 15. has been done. At the distal end of the engagement prevention part 17, a hook 17a is provided which projects outward from the cutout part 14.
is formed.

Further, the other end of the check lever 16 is provided with an actuating portion 1 that comes into contact with the dust collection filter 21 when the lid 9 is closed.
8 are formed substantially at right angles to the engagement prevention portion 17, sandwiching the intermediate portion. When the dust filter 21 is attached when the lid 9 is closed, the actuating part 18 comes into contact with the pressing part 26 of the packing 23, and pushes the engagement preventing part 17 against the biasing force to close the L-shaped locking part 15. The check lever 16 is rotated so as to move away from the check lever 16. The actuating portion 18 is provided with a fixing portion for fixing the spring 20.

With the above configuration, when the dust filter 21 is not attached when the lid 9 is closed, the engagement prevention part 17 of the check lever 16 is engaged with the engagement part 15 of the cover 9, and the lid clamp 30 is engaged. Prevents engagement with the stop.

On the other hand, when the dust collection filter 21 is attached, the engagement prevention part 17 rotates so as to lock the hook 17a provided at the tip of the engagement prevention part 17 to the upper end of the notch part 14, so that the lid clamp 30 is closed. The lid 9 is fixed by engaging with the L-shaped locking portion 15.

In addition, 34 is a suction pipe, and is connected to the dust collection filter 21 and the dust collection filter 28 via the suction hole 7a.

Next, the installation of the dust collection filter 21 in the vacuum cleaner 1 having such a configuration and the locking operation of the lid clamp 30 after the dust collection filter 21 is installed will be described based on FIGS. 1, 4, and 5. explain.

First, the dust collection filter 21 is inserted into the dust collection case 4 through the opening 5. At this time, the lower left side of the dust filter main body 22 comes into contact with the abutting part 6, and the placing part 25 of the packing 23 is placed on the upper right side of the mounting part 7. Then, when the opening 5 is closed by the lid 9, the ribs 12, 11 are closed by the packing 23,
By coming into contact with the contact portions 23b and 24a of 24, the dust collection filter 21 is stably attached to the dust collection case 4.

When the dust filter 21 is installed in this manner, the operating portion 18 of the check lever 16 is pressed by the pressing portion 26 of the packing 23 and rotates as shown in FIG. Due to this rotation, the hook 17a is released from the state shown by the dotted line, that is, the locked state with the L-shaped locking portion 15, and swings to the upper part of the notch portion 14. At this time, as shown in FIG. 5, the claw portion 32 of the lid clamp 30 located inside the guide port 8 is swung by the elastic force of the spring 33, and is engaged in an L-shape as shown in FIG. The lid 9 locks with the stopper 15 and closes to the dust collection case 4.
Fixed to.

On the other hand, when the dust filter 21 is not attached, the pressing force of the pressing part 26 of the packing 23 does not act on the operating part 18 as shown in FIG. Therefore, the hook 17a maintains the locked state with the L-shaped locking part 15 and prevents the claw part 32 of the lid clamp 30 from locking with the L-shaped locking part 15. Therefore, the lid 9
cannot be fixed to the dust collection case 4.

Effects of the invention As explained above, according to this invention, when the dust collection filter is not installed, the check lever prevents the lid clamp from engaging the lid, so the lid can be fixed. Therefore, the user can easily determine that the filter is not attached.

Further, since the clamp only prevents the lid from being locked to the locking portion, there is no possibility of damage to members such as the lid even if the lid is forced to close without the filter attached.

Furthermore, since a check lever, which is a member for preventing engagement, is provided at the free end of the lid,
When the dust collection filter is attached or removed, it separates from the dust collection chamber as soon as the lid is opened, so it does not get in the way of attachment or removal.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a partially cutaway front view, Figure 2 is an enlarged perspective view of the main part of the lid, and Figure 3 is a dust collecting paper. A plan view showing how the filter is attached to the dust collection filter,
FIGS. 4 and 5 are explanatory diagrams of the locking operation of the lid. 1... Vacuum cleaner, 4... Dust collection case, 5...
Opening, 9... Lid, 15... Locking part, 16... Check lever, 21... Dust collection filter, 30...
...Lid clamp.

Claims (1)

[Scope of Claim for Utility Model Registration] A dust collection filter is removably installed in a dust collection case from an opening, a lid that closes the opening is rotatably attached to the dust collection case, and a free end of the lid In a vacuum cleaner in which the lid is fixed by locking a lid clamp attached to a dust collection case to a locking portion formed in the vacuum cleaner, one end of the vacuum cleaner is spring-biased so as to lock in the locking portion. an engagement prevention portion that rotatably pivots an intermediate portion of the check lever to the free end of the lid, and prevents the lid clamp from engaging with the locking portion when the check lever is locked with the locking portion; is formed at one end of the check lever, and when the lid is closed, the check lever is rotated so as to come into contact with the dust collection filter and cause the engagement prevention part to move away from the locking part against the biasing force. A vacuum cleaner characterized in that an operating part for moving the check lever is formed at the other end of the check lever.