JPH0450008B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum cleaner having a dust collection bag.

BACKGROUND ART Conventionally, this type of vacuum cleaner has a structure as shown in FIG.

That is, an insertion frame 33 for holding the opening of the dust collection bag is provided in the dust collection chamber 32 of the main body 31 of the vacuum cleaner, and the insertion frame 33 is rotatably mounted around a support shaft 34 and is attached to a spring 36. is biased in the counterclockwise rotation direction. The insertion frame 33 includes an insertion section 37 into which the mouth core is inserted and held, and a locking section 38. 39 is a rib provided on the dust collection chamber lid 40;
It also serves as a tight seal to airtightly seal the inside of the dust collection chamber 32.

Problem to be Solved by the Invention In the above configuration, if you accidentally try to close the dust collection chamber lid 40 without attaching the dust collection bag, the rib 3
9 hits the locking portion 38 of the insertion frame 33 and prevents further closing operation. However, due to the heavy dust collection chamber lid 40 being in contact with it, a large moment force A is applied to the support shaft 34 that supports the insertion frame 33 using point B as a fulcrum, so the support shaft 34 of the insertion frame 33 is likely to come off. Additionally, there was a problem that the support shaft 34 was easily damaged.

SUMMARY OF THE INVENTION Accordingly, the present invention aims to provide a highly durable structure that prevents the insertion frame from slipping off its axis and is resistant to damage.

Means for Solving the Problems And in order to achieve the above object, the present invention provides a dust collecting chamber on the upper part of the insertion frame of the mouth core, which is rotatably attached to the support shaft attached to the front of the dust collecting chamber. A roughly Y-shaped protrusion is provided that comes into contact with the dust-collecting chamber lid at two places simultaneously when the dust-collecting chamber lid is closed without inserting the bag opening.

Effect According to the above means, without attaching a dust collection bag,
If you accidentally try to close the dust collection chamber lid, the two protrusions sandwiching the support shaft of the insertion frame will support the dust collection chamber lid and prevent it from closing. Also,
Since the support shaft of the insertion frame is sandwiched and supported on the left and right sides, no moment force is generated on the support shaft, so the force applied to the bearing portion can be reduced. Therefore, it is possible to prevent the support shaft from coming off and being damaged.

Embodiments Hereinafter, embodiments will be described based on the accompanying drawings. In FIGS. 1 to 4, 1 is a main body of a vacuum cleaner having a dust collection chamber 2. As shown in FIGS. A dust collection chamber lid 3 opens and closes the opening of the dust collection chamber 2, and has an air intake port 4. Reference numeral 5 denotes an insertion frame for inserting and holding the opening of the dust collection bag, and its support shaft 9 is rotatably inserted into a bearing hole 8 formed in the support plate 7 in the dust collection chamber 2.
Moreover, it is biased in the counterclockwise direction by the spring 10. The insertion frame 5 includes an insertion frame 11 into which the mouth core of the dust collection bag is inserted, and a protrusion 12 provided on the opposite side of the support shaft 9 to the insertion frame 11. When you try to close the dust collection chamber lid 3 without attaching the dust collection bag, this protrusion 12 comes into contact with the rib 13 formed on the dust collection chamber lid 3, and on the other hand, the insertion frame 11 contacts the dust collection chamber lid 3. It comes into contact with an inner plate 14 forming an inner wall. The contacts are configured to occur simultaneously.

Next, to explain the operation of this embodiment, when you forget to attach the dust collection bag to the dust collection chamber 2 and try to close the dust collection chamber lid 3, the protrusion 12 provided on the insertion frame 5 and the dust collection chamber lid The ribs 13 provided at 3 come into contact with each other. At the same time, the insertion portion 11 and the inner plate 14 of the dust collection chamber lid 3 come into contact. In this way, the insertion frame 5 can prevent the dust collection chamber lid 3 from closing. At this time, the insertion frame 5 supports the dust collection chamber lid 3 at two places on the left and right sides around the support shaft 9 and receives the force of the dust collection chamber lid 3, so the support shaft 9
No unreasonable force or moment force is applied to the support shaft 9, so that the support shaft 9 will not come off and the support shaft 9 and the bearing hole 8 will not be damaged.

Effects of the Invention As described above, the present invention eliminates the need to insert the mouth core of a dust collection bag into the upper part of the mouth core insertion frame which is rotatably attached to the support shaft attached to the front of the dust collection chamber. By providing a protrusion that comes into contact with the dust collection chamber lid in two places at the same time when the dust collection chamber lid is closed, the lid is supported on the left and right sides across the support shaft of the insertion frame. Unreasonable force will no longer be applied. Therefore, it is possible to provide a vacuum cleaner that can prevent damage to the support shaft and bearing hole and has excellent durability.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
The figure is an enlarged view of the same main part, Figure 3 is an exploded side view of the same main part,
FIG. 4 is a sectional view taken along the line A-A' in FIG. 3, and FIG. 5 is a sectional view showing a conventional example. 1...Vacuum cleaner body, 2...Dust collection chamber, 3...Dust collection chamber lid, 4...Intake port, 5...Insertion frame, 9...Spindle, 11...Insertion part, 12...Protrusion Department.

Claims (1)

[Claims] 1. A dust collection chamber with an upward opening provided in the front part of the vacuum cleaner body, a dust collection lid that has an air intake port and can freely open and close the opening of the dust collection chamber, and a dust collection chamber that can be freely entered and exited within the dust collection chamber. It is equipped with a dust collection bag having a mouth core, and an insertion frame for the mouth core that is rotatably attached around a support shaft attached to the front of the dust collection chamber. This vacuum cleaner has a substantially Y-shaped protrusion that abuts the dust-collecting chamber lid at two places simultaneously when the dust-collecting chamber lid is closed without inserting a mouth core.