JPH061101Y2 - Vacuum cleaner - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric vacuum cleaner equipped with a dust bag such as a paper bag.

2. Description of the Related Art Conventionally, in this type of vacuum cleaner, a dust bag is stored in the dust collection chamber, and the hole of the mouth plate attached to the bag mouth is externally fitted and connected to the intake cylinder. The plate is held by locking a movable locking member provided on the dust collecting chamber side at the upper center thereof and a pair of ribs protruding from the lid for opening and closing the dust collecting chamber at both upper sides thereof. . The reason for holding not only the center of the mouth plate but also both sides is to securely prevent the dust bag from being pulled backward by the suction force of the fan motor and deforming the mouth plate away from the intake cylinder. Is.

However, in the above structure, the rib gradually locks with the mouth plate each time the lid is opened and closed, and the rib gradually deforms. As a result, the holding of the mouth plate is uncertain. And air leakage may occur.

The present invention solves such conventional problems,
The purpose thereof is to ensure that the connection between the mouth plate and the intake cylinder is maintained, and to easily know that the dust bag is not attached.

Means for Solving the Problems In order to achieve the above object, an electric vacuum cleaner according to the present invention has a vacuum cleaner body having an intake cylinder communicating with an intake port in the front, and a dust collecting chamber having an upper opening. A dust bag that is stored in the dust chamber and has a front mouth plate detachably connected to the air intake cylinder, and the connection state of the mouth mouth plate with the air intake cylinder by engaging the upper center of the mouth plate. And a lid for displacing in the direction of the dust collecting chamber when there is no mouth plate, and a lid for opening and closing the upper opening of the dust collecting chamber. And a pair of holding ribs for holding the state of connection to the intake cylinder by locking to the portion and both ends are integrated with these holding ribs, and a lid closing operation for the locking body displaced in the direction of the dust collecting chamber A rib for preventing forgetting to attach a bag is formed which abuts on the way.

Operation In the present invention described above, the mouth plate of the dust bag connected to the intake cylinder is securely held at the central portion by the locking body and at both sides by the holding ribs of the lid. Next, if the dust collecting bag is forgotten to be attached, the locking body is displaced and the rib forgot to attach the bag comes into contact with the lid during the lid closing operation, so that the lid cannot be closed.

The ribs exert a reinforcing effect on each other to prevent deformation of the holding rib which comes into contact with the mouth plate each time the lid is opened and closed.

Example An example will be described below with reference to the accompanying drawings.

1 to 4, a dust collection chamber 3 whose upper opening is opened and closed by a lid 2 is provided on the suction side of a fan motor (not shown) of the cleaner body 1. Reference numeral 4 is an intake port, and 5 is an intake cylinder made of an elastic material such as rubber, the rear end of which communicates with the intake port 4 and the front end of which faces the front of the dust collection chamber 3. ) Is integrally molded.

6 is a buckle that keeps the lid 2 closed. A dust collecting bag 7 made of a paper bag or the like that can be stored in and taken out of the dust collecting chamber 3 has a mouth plate 8 made of cardboard at its bag mouth, and a hole 9 formed at the center thereof is outside the intake cylinder 5. It is designed to fit.

The lower part of the mouth plate 8 is locked by a holding part (not shown) formed at the bottom part of the dust collecting chamber 3, and the upper substantially central part thereof is a locking body 10 movably provided on the cleaner body 1. Similarly, both upper side portions are provided with a pair of parallel holding ribs 11 projecting from the lower front surface of the lid 2.
Respectively held in.

The locking body 10 is rotatable about a shaft 12 as a fulcrum, and is urged clockwise so as to lock on the mouth plate 8.
If the mouth plate 8 is not provided, the mouth plate 8 is held at the clockwise rotation position further than the locking portion. A rib 13 for preventing forgetting to attach a bag is further formed in the front lower surface lateral direction of the lid 2. The height and position of the rib 13 are set so as to hit the locking body 10 when the lid 8 is not present and the lid is closed, and both sides thereof are connected to the holding ribs 11.
Form H shape.

In the above structure, since the mouth plate 8 is held by the locking body 10 and the holding ribs 11 at the upper center and both sides thereof, even if the suction force of the fan motor acts on the dust collecting bag 7 strongly, The connection state with 5 is reliably maintained.

Further, when the mouth plate 8 is not provided, that is, when the dust collecting bag 7 is forgotten to be attached, the locking body 10 is displaced and held in the clockwise direction further than the normal position, so that the lid 2 is attached during the closing operation. The forgetting rib 13 hits the locking body 10 and cannot be closed completely. Therefore, the user can know that the dust bag 7 is not present in the state of the lid 2.

Then, the holding rib 11 and the bag-retaining prevention rib 13 are H
Since they are connected to each other in shape and exert mutual reinforcing action, their deformation can be surely held. As a result, the holding function of the mouth plate 8 can be ensured for a long period of time, and the presence / absence of the dust collecting bag 7 can be surely confirmed.

As described above, according to the present invention, the mouth plate of the dust collecting bag is connected and held well with respect to the intake cylinder at all times, so that excellent dust absorption characteristics can be maintained and the dust collecting bag can be forgotten. It can also prevent breakdown due to misuse of the vacuum cleaner.

Then, since ribs having different functions are connected to each other so as to exert a mutual reinforcing action, it is rational and ensures the above effect.

[Brief description of drawings]

FIG. 1 is a bottom perspective view of a lid for opening and closing a dust collecting chamber in an embodiment of the present invention, FIG. 2 is a perspective view with a main part cut away, and FIGS. 3 and 4 are operation explanatory views. 1 ... Vacuum cleaner main body, 2 ... Lid, 3 ... Dust collection chamber, 4 ... Intake port, 5 ... Intake cylinder, 7 ... Dust collection bag, 8 ... Dust plate, 10
…… Locking body, 11 …… Holding rib, 13 …… Bag forgetting prevention rib.

Claims (1)

[Scope of utility model registration request] 1. A cleaner main body having an intake cylinder communicating with an intake opening at the front and having a dust collecting chamber open at the upper side, and a vacuum cleaner body housed so as to be able to move in and out of the dust collecting chamber. A dust collecting bag detachably connected to the cylinder and a substantially central portion of the upper part of the mouth plate are engaged to maintain the connection state of the mouth plate to the intake cylinder, and when there is no mouth plate, the bag is displaced toward the dust collecting chamber. A locking body and a lid for opening and closing the upper opening of the dust collecting chamber are provided, and the front lower surface of the lid is locked to both upper side portions of the mouth plate to maintain the connection state to the intake cylinder. Electric cleaning having a pair of holding ribs and a rib for preventing forgetting to attach a bag, the both ends of which are integrated with the holding ribs and which comes into contact with the locking body displaced in the direction of the dust collecting chamber during the lid closing operation. Machine.