JPH062116B2 - Vacuum cleaner - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a paper bag type electric vacuum cleaner used in general households.

2. Description of the Related Art Conventional vacuum cleaners of this type are generally provided with a buckle for attaching a paper bag and a buckle for locking a dust cover for opening and closing the dust collecting part that stores the paper bag. It was target. However, recently, the function of parts has been further improved,
It is considered that the above-mentioned two types of buckle are made to function by one part for the purpose of a low cost product. The structure will be described with reference to FIG. That is, paper bag 1
The mouthpiece 1a of the tail lock 2 is locked to the claw 2a of the buckle 2, and the dust cover 3
Has a claw 3a made of an elastic material protruding downward from the claw 2b of the buckle 2.
Locked in. The buckle 2 rotates clockwise around the shaft portion 4 as shown by a chain double-dashed line in the state where the paper bag 1 is not provided, and even if the dust cover 3 is closed, the buckle 2 is covered with the dust cover 3 on the surface 2c. The claw 3a was mounted so that it could not be closed.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a structure, when the core portion 1a of the paper bag 1 is attached to the buckle 2 and the dust cover 3 is closed, the dust cover 3 The claw 3a formed in the above step pushes the claw 2b downward in the process of engaging with the claw 2b of the buckle 2. At this time, the core 1a, which is usually made of thick paper, is also pushed downward.
Since the lower end of the mouth core 1a is held by the main body, there is a problem that the mouth core 1a is bent by the above pressing force and the dust tight with the intake port packing 5 becomes incomplete. Also,
If the mouthpiece 1a is slightly warped and attached to the buckle, the position of the claw 2b of the buckle 2 will change, and the claw 3a of the dust cover will not be properly locked or the engagement will be loose. was there.

The present invention solves the above conventional problems, and particularly prevents the deformation of the core of the paper bag.

Means for Solving the Problems In order to solve such conventional problems, the present invention supports a main body case having an upwardly open dust collecting portion for housing a paper bag and a core portion of the paper bag. And a dust cover that opens and closes the open upper part of the dust collecting part. The buckle is rotatably mounted above the dust collecting part, and the rear end of the upper end is the end of the core part. Is formed into a substantially T-shape with a claw engaging with a protrusion projecting upward and a stopper projecting downward, and the above-mentioned projecting part is configured to project outward from the body case. The front side of the dust cover is urged via a spring, and the lower surface of the dust cover is provided with a rib that comes into contact with the buckle located at the forward rotation position during the closing operation of the dust cover. The lower end of the contact with the stopper contact part on the body case side when the core is attached Of.

Action According to this structure, the pressing force when locking the dust cover to the buckle is not received by the stopper to generate stress in the mouth core, and the position of the buckle in the state of being locked to the mouth core. From this point, the locking between the buckle and the dust cover can be ensured. Further, when there is no paper bag, the buckle rotates in the opposite direction to prevent the dust cover from closing.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 to 5, 6 is a lower part of the main body case, and a paper bag 7
Is formed, and a dust cover 9 is detachably attached to the upper opening of the dust collecting portion 8. 1
Reference numeral 0 denotes an inlet packing, which is sandwiched and fixed by the inlet cover 11 and the lower body case 6. Intake port packing 10
The cylindrical portion 10a protruding toward the dust collecting portion 8 side is fitted into the hole 7b of the core portion 7a of the paper bag 7. The lower end of the core portion 7a has a groove 6 formed in the lower portion 6 of the main body case.
It is inserted in a and the upper end is locked by the claw 12b of the buckle 12. The buckle 12 has a shaft portion 12a rotatably supported by a bearing portion 6b formed on the lower portion 6 of the main body case. 1
Reference numeral 3 is a compression spring, which is a round boss 12 formed on the buckle 12.
Both ends are engaged with c and a round boss 6c formed on the lower portion 6 of the main body case, and always urges the buckle 12 to rotate counterclockwise. A claw 9a is formed on the dust cover 9, and the buckle 1
It is locked to the elastic claw body 12d formed in FIG.
Reference numeral 12e is a protruding portion of the buckle 12, and when the buckle 12 is in the counterclockwise rotating position, it comes into contact with the front wall 9b of the dust cover 9 and prevents the lid from closing. 12f is a buckle 12
Showing a stopper extending downwardly of the paper bag 7 with the claw 12b.
At the position where it engages with the core portion 7a, it abuts on the stopper abutting portion 6d on the lower portion 6 of the main body case, and prevents further clockwise rotation.

14 is a protruding piece protruding from the inner bottom surface of one side of the lower body case 6;
Reference numeral 15 denotes a cam piece which is provided so as to project from the lower surface of the dust collecting lid 9 in correspondence with the projecting piece 14.

In the above structure, when the paper bag 7 is mounted now, the lower end of the core portion 7a is inserted and locked in the groove 6a in the lower portion 6 of the main body case, and then rotated so as to come into close contact with the air inlet packing 10. In this process, the buckle 12 rotates clockwise because the stopper 12f is pushed by the mouth core portion 7a, and finally the claw 12b is locked to the upper end of the mouth core portion 7a. That is, the core 7a is supported by the groove 6a at the lower end and the buckle 12 at the upper end.

When the dust cover 9 is closed from this state, the claw 9a is locked by the buckle 1.
The second claw body 12d is engaged and the closed state is maintained.

Then, in the process of engaging the claw 9a and the claw body 12d, the buckle 1
2 receives a clockwise force. However, since this force is received by the stopper contact portion 6d of the lower body case 6 with which the stopper 12f is in contact, it does not reach the core portion 7a.

Further, since the position of the buckle 12 is regulated as described above, even if the mouthpiece portion 7a is slightly deformed, this is corrected by the buckle 12, and the locking position of the buckle changes as in the conventional case. It is something that you will never do.

Next, if the user forgets to attach the paper bag 7, the dust cover 9 cannot be closed. That is, in this case, the buckle 12 is at the counterclockwise rotating position, and the front wall 9b of the dust cover 9 comes into contact with the protrusion 12e while the dust cover 9 is being closed. Therefore, the user can know that he / she has not attached the paper bag 7 because the dust cover 9 cannot be closed.

By the way, in the above-mentioned structure, when closing the dust cover 9, it may be mounted from the front to the rear. There is no problem if the paper bag 7 is attached here, but in the state of forgetting to attach the paper bag 7, the buckle 12 at the counterclockwise rotating position on the front wall 9b is pushed clockwise to close the dust cover 9. There is a possibility that it will end up. However, in the above-mentioned embodiment, when the dust cover 9 is slid backward, the cam piece 15 rides on the protrusion 14 to prevent the front wall 9b and the buckle 12 from engaging with each other as shown in FIG. Therefore, even if the dust cover 9 is finally closed, the front wall 9b hits the protruding portion 12e of the buckle 12 as described above, and the closing of the front wall 9b is prevented.

EFFECTS OF THE INVENTION As described above, according to the present invention, one buckle can perform both functions of supporting a paper bag and holding and holding the dust cover closed. Also do.

So you get something very structurally simple,
Moreover, the usability can be improved.

In addition, since the locking position of the buckle is fixed to the core of the paper bag by the stopper, the stress when closing the dust cover is applied to the core as in the conventional case, and the core is slightly deformed. This makes it possible to reliably prevent the dust cover from being unable to be closed and held, which can provide an electric vacuum cleaner having good dust absorption and dust collection performance.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of an electric vacuum cleaner showing an embodiment of the present invention, FIGS. 2 and 3 are sectional views of essential parts, FIG. 4 is its exploded perspective view, and FIG. FIG. 6 is a cross-sectional view showing a conventional example. 7 ... paper bag, 7a ... core, 9 ... dust cover, 9a ...
Claw, 12 ... Buckle, 12d ... Claw body, 12f ... Stopper.

Claims (1)

[Claims] 1. A main body case having an upwardly open dust collecting portion for accommodating a paper bag, a buckle for supporting a core portion of the paper bag, and a dust collecting lid for opening and closing the upper opening portion of the dust collecting portion. Be equipped with
The buckle is rotatably mounted above the dust collecting part, and has a claw that engages with the end of the core part in the upper rear, a protruding part in the upper front, and a stopper in the lower part. It is configured into a substantially T-shape provided, and is biased forward through a spring so that the above-mentioned protruding portion protrudes outward of the main body case, and further on the lower surface of the dust cover. Forms a rib that abuts the buckle in the forward rotation position during the closing operation, and the lower end of the stopper of the buckle abuts the stopper abutting portion on the main body case side when the core is attached. Vacuum cleaner.