JPH0515904Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention prevents the dust collection chamber from being closed with the lid when the filter is not installed, thereby preventing use without the filter installed. It concerns vacuum cleaners.

Prior Art Conventional devices of this type include those shown in FIGS. 6 and 7, for example. That is, a dust collection chamber 2 is formed in the cleaner body 1, and a lid 3 for opening and closing the dust collection chamber 2 is rotatably attached to the cleaner body 1. This lid body 3 has a suction port 3.
a is formed, and a dust collection chamber 2 is formed on the underside of this lid 3.
A mouth frame holder 4 is rotatably attached to the opening 2a of the mouth frame holder 4 via a rotation shaft 5. This mouth frame holder 4 has a roughly U-shape, and inside this U-shaped frame,
A mouth frame 7 to which a paper filter 6 is attached is attached such that it can be freely stored and drawn out. An opening 7a communicating with the paper filter 6 is formed in the mouth frame 7, and when the vacuum cleaner is operated, dust is sucked into the paper filter 6 through the suction port 3a and the opening 7a.

By the way, if such a vacuum cleaner is operated without the paper filter 6 installed, dust may accumulate directly in the dust collection chamber 2 or may enter the electric blower (not shown). This problem occurs.

Therefore, some devices are provided with a stopper device 8 that prevents the lid 3 from closing when the mouth frame 7 is not attached to the mouth frame holder 4, thereby preventing the above-mentioned problems. This stopper device 8 is
As shown in FIG. 7, a rotary member 9 is rotatably attached to the side portion 4a of the U-shaped mouth frame holder 4 extending in the insertion direction of the mouth frame 7 through a shaft 10. An arm portion 9a pressed by the mouth frame 7 and a stopper projection portion 9b are formed. Further, the rotating member 9 is urged in the direction of arrow A via the spring 11, and is stopped by coming into contact with the rotation preventing portion 4b at the position shown in FIG. 7 (hereinafter referred to as the "locking position"). It's getting old. On the other hand, the lid 3 is provided with a protruding locking projection 3b serving as a locking portion that comes into contact with a stopper projection 9b of the rotating member 9 at the locking position of the rotating member 9. These rotating members 9 and the like are mainly covered with a cover 12 as shown in FIG. 6, and a stopper protrusion 9b projects from a long hole 12a formed in the cover 12. This elongated hole 12a is formed in an arc shape centered on the shaft 10 so that the stopper protrusion 9b can be moved.

When the mouth frame 7 is not attached to the mouth frame holder 4, the rotating member 9 is in the locking position, so when the lid 3 is attempted to be closed, the lid 3 is locked to the stopper protrusion 9b of the rotating member 9. Since the protrusions 3b come into contact with each other, the lid 3 is prevented from closing, and the paper filter 6 is prevented from closing.
This prevents you from using a vacuum cleaner without wearing it.

On the other hand, when the mouth frame 7 is inserted into the mouth frame holder 4, the arm part 9a of the rotating member 9 is pressed against the mouth frame 7, and the rotating member 9 is rotated in the direction of arrow B against the spring 11. Ru. Then, this rotating member 9
The stopper protrusion 9b is the locking protrusion 3b of the lid body 3.
The lid body 3 can be closed by shifting from the locked position. Therefore, the vacuum cleaner can be operated in this state.

Problems to be Solved by the Invention However, in such a conventional vacuum cleaner, if the lid 3 is closed without noticing that the paper filter 6 is not installed, the lid 3 may be closed. The locking protrusion 3b is the stopper protrusion 9 of the rotating member 9.
b and prevents the lid 3 from closing, thereby making the operator aware of this condition. Therefore, if an attempt is made to close the lid 3 by applying excessive external force, the lid 3 etc. will be damaged. There is a possibility. In addition, since such a stopper device 8 needs to be installed separately, it requires many man-hours for assembly and increases costs.
There is a problem.

Means for Solving the Problems This invention was devised by focusing on the problems of the conventional art, and it covers the opening of the dust collection chamber that is formed in the main body of the vacuum cleaner and opens upward, and also covers the suction port. A lid body having a rotary shaft is rotatably attached to the vacuum cleaner body by a rotation shaft, and a mouth frame holder is biased in the opening direction of the lid body through the rotation shaft on the underside of the lid body. In the vacuum cleaner, the mouth frame having a filter is detachably attached to the mouth frame holder, and the rotation axis of the mouth frame holder is located diagonally below the rotation axis of the lid body. A locking portion is provided near the opening edge of the dust collection chamber, and a locking portion is formed at the tip thereof, and a locking portion is formed on the back side of the lid to engage with the locking portion of the mouth frame holder when the mouth frame holder is opened. It is characterized by forming a locked part that locks.

According to this means, when the lid is in the open state, the mouth frame holder is urged in the opening direction by the urging means, and the locking part of the mouth frame holder is engaged with the locked part of the lid. By stopping the lid, the lid is prevented from closing, and at the same time, the opening of the dust collection chamber is left wide open in this state. As a result, the user can easily recognize that the filter is not attached, so there is no need to apply excessive force to the lid when the filter is not attached, which prevents damage to the vacuum cleaner. It will be done.

In addition, when using the filter with the filter attached, by rotating the spout frame holder against the biasing means, the locking part of the spout frame holder and the locked part of the lid body can be locked. Release and close the lid. The vacuum cleaner can now be used.

By using the mouth frame holder in this way, it is possible to prevent the lid from closing when the filter is not attached, so there is no need to install a separate stopper device as in the past, and the installation work is made easier. Improvement and cost reduction can be achieved.

Example This invention will be explained below based on examples.

1 to 3 are diagrams showing one embodiment of this invention.

First, to explain the configuration, a dust collection chamber 22 is formed in the vacuum cleaner main body 21, and a lid body 23 for opening and closing this dust collection chamber 22 is rotatably attached to the vacuum cleaner main body 21 via a rotation shaft 23b. has been done. A suction port 23a is formed in this lid 23, and an opening 22a of the dust collection chamber 22 located below this lid 23 has a suction port 23a.
The mouth frame holder 24 is attached to the lid body 23 via the rotation shaft 25.
It is rotatably mounted while being biased in the opening direction. The rotation shaft 25 of the mouth frame holder 24 is provided near the opening edge (the edge of the opening 22a) located obliquely below the rotation shaft 23b of the lid body 23. The lid body 23 and the mouth frame holder 24 are adapted to rotate in the same direction. This mouth frame holder 2
4 has a mouth frame 27 on which a paper filter 26 is attached.
is designed to be removably attached. The opening 27a is formed in the mouth frame 27 as in the conventional case, and when the vacuum cleaner is operated, dust is sucked into the paper filter 26 through the suction port 23a and the opening 27a. As shown in FIGS. 2 and 3, the mouth frame 27 attached to the mouth frame holder 24 has its tip 27b locked with the mouth frame locking part 21a provided on the cleaner body 21. ing. As shown in FIG.
An inclined surface portion 21b on which the slider 7b slides is formed.

By the way, the mouth frame holder 24 is biased in the opening direction (direction of arrow A in FIG. 1) by a spring 29 as a biasing means, and the tip end 2 as a locking part is biased in the opening direction (direction of arrow A in FIG.
4a is locked to the locked portion 23c of the biasing member 23 in the open state, as shown in FIG.
It is formed in front of the rotation shaft 23b of the lid 23 on the back side of the lid 23. Therefore, the locking portion is formed at the tip of the mouth frame holder 24.

In the figure, reference numeral 30 is a lid locking portion that locks the lid 23, and reference numeral 31 is an electric blower.

Next, the operation of the vacuum cleaner having such a configuration will be explained.

First, when the mouth frame 27 is not attached to the mouth frame holder 24 and the lid body 23 is opened, the mouth frame holder 24 is urged in the opening direction by the spring 29, and the tip end 24a of the mouth frame holder 24 is Lid body 23
It comes into contact with the locked portion 23c of. In this state, even if the lid body 23 is attempted to be closed, it cannot be closed, and since the opening 22a of the dust collection chamber 22 is wide open, the user must be aware that the paper filter 26 is not attached. can be easily recognized. Therefore, it is not necessary to apply force to forcefully close the lid 23 as in the conventional case, and damage to the vacuum cleaner can be prevented.

Moreover, when attaching the mouth frame 27, the mouth frame holder 24 is rotated in the closing direction, and the tip part 24a of the mouth frame holder 24 and the locked part 2 of the lid body 23 are rotated.
3c is released. Then, the mouth frame 27 is attached to this mouth frame holder 24, and the dust collection chamber 2
2 is closed, and the tip end 27b of the mouth frame 27 is locked to the mouth frame locking portion 21a of the cleaner body 21. At this time of locking, the tip portion 27b of the mouth frame 27 is easily locked by sliding on the inclined surface portion 21b of the mouth frame locking portion 21a. This makes it possible to close the lid 23, and the lid 23 is locked to the lid locking portion 30 on the cleaner body 21 side and closed. In this state, the vacuum cleaner can be used.

In this way, by using the mouth frame holder 24, it is possible to prevent the paper filter 26 from being used in the unattached state, so compared to the conventional method in which the stopper device 8 is separately provided, the number of assembly steps is reduced. This will lead to reductions in costs and costs.

Also, Figures 4 and 5 show the second version of this invention.
The figure shows an example.

In this embodiment, a pair of ribs 23d serving as locked portions are integrally molded on the lid body 23. As shown in FIG. 4, this rib 23d is formed with a locking step portion 23e that locks on the tip end 24a as a locking portion of the mouth frame holder 24, and both ribs 23d,
The interval 23d is set to an interval at which the mouth frame 27 can be inserted. Moreover, this rib 23d
It is set so that it may contact the mouth frame holder 24 in the closed state of No. 3.

When the paper filter 26 is not installed, by providing this rib 23d, a gap is formed between the mouth frame holder 24 and the back surface of the lid body 23, and the distance between these ribs 23d, 23d is as described above. Since the settings are as follows, the paper filter 26 can be easily attached with one hand as shown by the two-dot chain line in FIG.

The other configurations and operations are the same as those in the first embodiment, so their explanations will be omitted.

Effect of the invention As explained above, according to this invention,
The rotation axis of the frame holder is located near the edge of the opening of the dust chamber, which is located diagonally below the rotation axis of the lid body, and a locking part is formed at the tip of the rotation axis. A locking part is formed on the back side of the lid body to be locked with the locking part of the frame holder when the frame holder is opened.
When the filter is not installed, the locking portion of the frame holder locks with the locked portion of the lid, preventing the lid from closing, and the opening of the dust chamber is opened widely, so that the state in which the filter is not installed can be clearly confirmed, and damage to the stopper device caused by trying to forcefully open the lid when the filter is not installed, as in the past, can be prevented. Also, by using the existing frame holder, there is no need to provide a separate stopper device as in the past, which is practically beneficial in that it is possible to reduce the number of assembly steps and reduce costs.

[Brief explanation of the drawing]

1 to 3 are views showing a first embodiment of the vacuum cleaner of this invention, and FIG. 1 is a partially sectional side view of the vacuum cleaner showing a state in which the lid is opened;
Fig. 2 is a side view of the vacuum cleaner with the lid closed; Fig. 3 is a side view showing the mouth frame and the mouth frame locking portion; Figs. 4 and 5 are the second part of this invention; FIG. 4 is an exploded perspective view showing the vacuum cleaner body, paper filter, etc., FIG. 5 is a perspective view showing the mouth frame holder, and FIGS. 6 and 7 are views showing a conventional example. FIG. 6 is a perspective view of the vacuum cleaner showing the state in which the mouth frame is attached, and FIG. 7 is a perspective view of the stopper device. 21... Vacuum cleaner body, 22... Dust collection chamber, 23...
... Lid body, 23a ... Suction port, 23b ... Rotating shaft, 23c ... Locked part, 23d ... Rib (locked part), 24 ... Mouth frame holder, 24a ... Tip part (locked part) stop portion), 25... rotating shaft, 26... paper filter, 27... mouth frame, 29... spring (biasing means).

Claims (1)

[Claims for Utility Model Registration] A lid body that is formed in a vacuum cleaner body and that can freely open and close the opening of a dust collection chamber that opens upward, and that has a suction port, is rotatable by a rotation shaft on the vacuum cleaner body. and a mouth frame holder is rotatably attached to the lower side of the lid body while biasing the lid body in the opening direction through a rotation shaft, and the mouth frame holder has a filter. In the vacuum cleaner, the rotation axis of the mouth frame holder is provided near the opening edge of the dust collection chamber located diagonally below the rotation axis of the lid body, and the rotation axis of the mouth frame holder is provided near the opening edge of the dust collection chamber, and the forming a locking part;
A vacuum cleaner characterized in that a locked portion is formed on the back side of the lid body to lock with a locking portion of the mouth frame holder when the mouth frame holder is opened.