JPS646771Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a holding structure for a dust collection bag of a vacuum cleaner that uses a dust collection bag such as a paper bag.

BACKGROUND ART The structure of a conventional vacuum cleaner of this type will be described with reference to the drawings.

In FIG. 7 to FIG. 8, the dust collection bag 1 is the bag body 2.
and a mouth frame 4 having a dust suction port 3 fixed thereto. To attach it to the main body 5, first insert the mouth frame 4 into a holder 8 which is rotatably pivoted in the vertical direction at the entrance of the dust collection chamber 6 and is biased forward by a spring 7. When the lid 9 is rotated backward to be connected to the main body 5, the holder 8 and the dust collection bag 1 are pressed against the valve body 10 attached to the front lid 9 and are inserted into the main body 5.

Problems that the invention aims to solve However, with such conventional vacuum cleaners,
Even if you forget to attach the dust bag 1, as you rotate the front cover 9, the valve body 10 will enter the main body 5 while pressing only the holder 8, and the front cover 9 and the main body 5 will be combined. It was necessary to take measures to prevent people from forgetting to attach the dust collection bag.

For this reason, an idea as shown in FIG. 9 was devised.
That is, a ventilation hole 11 is provided in a part of the valve body 10,
The side of the dust collection chamber 6 of this ventilation hole 11 is covered with a lip 12, which is formed so as to come into close contact with the mouth frame 4 when the dust collection bag 1 is correctly inserted into the holder 8. Further, a vibrating body 13 that generates a whistling sound when airflow passes through the ventilation hole 11 is disposed on the non-dust collecting chamber side of the ventilation hole 11.

With this configuration, if the dust collection bag 1 is forgotten to be attached, the airflow will pass through because the mouth frame 4 will not block the ventilation hole 11, and a whistling sound will be generated, alerting the vacuum cleaner user that the dust collection bag 1 is not attached. It is something to inform.

However, with this configuration, the vibrating body 13 must be provided separately, which not only increases the number of parts and increases the product price, but also does not make the user aware that the vibrator 13 has been forgotten until the vacuum cleaner is operated. It had the following drawback. Furthermore, in some cases where the opening frame of the dust collection bag is supported by a support, when there is no opening frame, the support protrudes outside the dust collection chamber and obstructs the closing of the lid. It is something to do. By the way, with this device, the support body must normally be engaged with the mouth frame, which is troublesome to operate.

The present invention solves these conventional drawbacks, and uses a simple structure to detect when a dust collection bag is forgotten.

Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problems is to provide a main body with a built-in electric blower and an upwardly open dust collection chamber on the suction side, and a rear part of the main body. A lid body is pivotably supported by the lid body and rotates to open and close the upper part of the dust collection chamber, a pair of support plates are arranged at the front and rear of the dust collection chamber, and the front and rear of the mouth frame are supported by these support plates. The pair of support plates are configured to be movable back and forth and have grooves that engage with the front and rear edges of the mouth frame, respectively, and the front support plate is supported by a spring. It is biased upward, and in its free state, the upper end is set so as to be located in the middle of the closing process of the lid, and a lid abutment plate is provided on the lower surface of the lid to push down the frame.

Effect This effect is as follows. In other words, when the dust collection bag is not attached, the support plate tilts forward due to spring bias to prevent the upper lid from clogging the dust collection chamber.
This prevents the user of the vacuum cleaner from accidentally using it without a dust collection bag.

In addition, when the dust collection bag is attached and the top cover is rotated to close the dust collection chamber, the lid stopper attached to the inner surface gradually presses against the opening frame.
The support plate also rotates toward the inside of the dust collection chamber without interfering with the closing rotation of the top cover, so that the vacuum cleaner can be used with the dust collection bag normally attached.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In Figures 1 to 6, 21 is a vacuum cleaner main body (hereinafter referred to as the main body) that has a built-in electric blower, cord winding device, etc. The rear part houses the electric blower, etc., and the front part is a vacuum cleaner body with a built-in electric blower, cord winding device, etc. Mouth/Hose/
It has a dust collection chamber 23 that accommodates a dust collection bag 22 such as a paper bag for storing dust sucked in through an extension tube (not shown). A top lid 24 is provided above the dust collection chamber 23 to close off the dust collection chamber 23.
A buckle 26 is rotatably attached to an upper body 25 that holds an electric blower or the like together with the body 21, and is rotatably fixed to the upper lid 24. When a buckle 26 is engaged with a handle 27 fixed to the body 21, the body 21 is rotated.
is combined with

28 is a pair of rear wheels attached to both sides of the rear end of the main body 21, and 29 is a flexible wheel device attached to the bottom of the dust collection chamber 23 of the main body 21, both of which facilitate movement of the vacuum cleaner while in use. I have to. Reference numeral 30 denotes a handle used when transporting the main body, and is rotatably attached to the upper cover 24.

A bumper 31 made of vinyl chloride is attached to the outer periphery of the main body 21, and the main body 21 is attached when moving while using the vacuum cleaner.
1 hits furniture or the like, the impact is softened so that the main body 21, furniture, etc. are not damaged.

Inside the dust collection chamber 23, there is a front wall 32 that forms this.
A first support plate 34 is rotatably fixed to a pair of ribs 33 that are disposed to protrude inward of the dust collection chamber 23 . In addition, a second support plate 3 is attached to a pair of ribs 36 that are formed to protrude inward from the inner wall 35 of the dust collection chamber 23 in front of the electric blower.
7 is rotatably fixed on the shaft.

The support plate 34 is biased by a spring 38 so that its upper part rotates toward the handle 27, and the rotation range is from the position where the lower end face 39 contacts the front wall 32 to the position where the handle-side end face 40 contacts the handle 27. When the top cover 24 is in the open position, the end face 40 contacts the handle 27. If the top cover 24 is rotated closed in this state, the front end face 42 of the top cover 24 rides up on the upper end face 41, preventing the buckle 26 from engaging with the handle 27, and the top cover 24 remains open.

Reference numeral 43 denotes a support groove that is attached to the bag opening of the dust collecting bag 22 and into which a mouth frame 45 having a dust suction opening 44 is inserted.

Reference numeral 46 denotes a cover plate fixed to the upper cover 24 from the inside surface of the dust collection chamber 23, and has a substantially circular shape approximately 5 mm protruding toward the dust collection chamber 23 in order to hold a valve 47 that fits into the dust suction port 44 at approximately the center. It has a convex portion 48 in the shape of the contact plate. When the upper lid 24 is rotated to close, the rearmost part of the plate protrusion 48 first hits the mouth frame 45 held by the support plate 34 and presses it inward into the dust collecting chamber 23.

The support plate 37 is attached with its rear end 49 abutting the inner wall 35 and protruding diagonally upward at an angle of about 45 degrees from the inner wall 35, and rotates from this state to a position facing almost vertically upward. When the upper lid 24 is connected to the main body 21, the upper edge of the mouth frame 45, which was pressed by the abutment plate convex portion 48, enters the support groove 50 formed on the lid abutment plate 46 side of the support plate 37, and the valve 47 fits into the dust suction port 44.

Next, the operation of this configuration will be explained.

The support plate 34 is biased toward the handle 27 by a spring 38 . Even if you operate the buckle 26 to uncouple the upper lid 24 and the main body 21, take out the dust collection bag 22 full of dust, and perform a closing rotation to connect the upper lid 24 to the main body 21, the upper lid 24 The front end surface 42 of the support plate 34 rides on the upper end surface 41 of the support plate 34 and cannot be connected.
The user of the vacuum cleaner may feel abnormal and forget to attach the dust collection bag 22.

On the other hand, the lower edge of the opening frame 45 of the new dust collection bag 22 is inserted into the support groove 43 provided on the upper part of the support plate 34 and attached to the support plate 34, and then the upper lid 14 is attached to the main body 21.
When the closing rotation is performed in order to connect the lid to the lid, the rearmost part of the convex part 48 of the cover plate 46 is connected to the opening frame 45.
is pressed to gradually lower the dust collection chamber 23 inward, and the upper edge of the mouth frame 45 is automatically inserted into the support groove 50 to be in the normal installation state.

At this time, the buckle 26 is simultaneously engaged with the handle 27, the upper lid 24 is connected to the main body 21, and the valve 47 is also properly fitted into the mouth frame 45.

As a result, while the vacuum cleaner cannot be used when the dust collection bag 22 is not attached to the support plate 34,
After installation, the device is ready for use by simply closing the top cover 24 and connecting it to the main body 21.
This improves usability. In addition, the initial installation operation of the dust collection bag 22 is performed using the support groove 4 of the support plate 34.
It is easy to just insert it into the machine, making it even easier to use.

In the above explanation, the plate protrusion 48 is referred to as the mouth frame 45.
Although it was described as applying pressure to the plate convex portion 4
8 does not need to be approximately circular, and may be a rib or boss shape, as long as it applies pressure to the mouth frame 45 when the top lid 24 is closed.

Effects of the invention As described above, according to the invention, there is a support plate attached to the front part of the dust collection chamber with a spring bias, a lid body that rotatably closes the dust collection chamber from above, and By providing a cover plate that is fixed to the inner surface of the lid body and presses the opening frame of the dust collection bag when it is rotated to close, the vacuum cleaner can be used when the opening frame is not attached to the support plate when replacing the dust collection bag It has the effect of making it unusable, and allowing it to be used simply by closing the lid when attached. Furthermore, the mouth frame is automatically set in response to the closing of the lid, which improves usability accordingly.

[Brief explanation of drawings]

Fig. 1 is a central sectional view of the essential parts of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a perspective view of the same external appearance, and Fig. 3
Figure 4 is a perspective view when the paper bag is attached, Figure 4 is a diagram when the top cover is closed, Figure 5 is a diagram when there is no paper bag, Figure 6 is a perspective view of the support plate, Figure 7
The figure is a perspective view of a conventional dust collection bag when it is installed.
This figure is a central sectional view of the main part, and FIG. 9 is a sectional view when the vibrating body is attached. 22... Dust collection bag, 23... Dust collection chamber, 24... Lid body (upper lid), 34... Support plate, 45... Mouth frame, 4
6...Lid plate.

Claims (1)

[Scope of utility model registration request] a main body with a built-in electric blower and an upwardly open dust collection chamber formed on its suction side; a lid whose rear part is pivotally supported by the main body and which opens and closes the upper part of the dust collection chamber by rotation; 1 installed at the front and rear of the dust collection room.
It is equipped with a pair of support plates and a dust collection bag in which the front and back of the mouth frame are supported by these support plates, and the pair of support plates are configured to be movable back and forth and engage with the front and rear edges of the mouth frame. Furthermore, the front support plate is biased forward by a spring, and is set so that its upper end is located in the middle of the lid closing process in its free state, and the lower surface of the body is A vacuum cleaner equipped with a cover plate that presses down the mouth frame.