JPS6337006Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust removal device for a vacuum cleaner.

[Prior Art] Conventionally, a rotating body rotates along the back surface of a filter bent into a wave shape, a base end is supported by the rotating body, and the other end hits the filter as the rotating body rotates. For example, as a dust removing device for a vacuum cleaner equipped with a dust remover made of an elastic wire,
There is one shown in Publication No. 22959. In this device, a circular attachment ring is formed at the base end of the dust remover, and an insertion boss into which the attachment ring of the dust remover fits, and an intermediate straight portion of the dust remover are inserted into the rotating body. A notch, a mounting recess, and a retaining shelf for locking, and a notch and a shelf for inserting and locking another part of the same straight portion are formed.

[Problem to be solved by the invention] However, according to the conventional method, in order to attach the dust remover to the rotating body, first, the attachment ring is fitted to the insertion boss, and then the dust remover is attached to the rotating body. While slightly bending the middle straight part of the housing, insert it into the mounting recess through the notch and hook it on the retaining shelf, then bend the other end of the straight part slightly and pass through the notch and hang it on the shelf. Therefore, the installation operation is complicated and time-consuming, and the structure for installing the dust remover is also complicated as described above, resulting in high manufacturing costs.

However, the present invention aims to provide a dust removal device in which the dust removal device can be quickly attached with a one-touch operation, and the structure of which can be simplified.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention particularly forms a substantially U-shaped end portion at the base end portion of the dust remover, while the rotating body has the following features: a through hole that opens in the opposite direction and has a width and width that allows the U-shaped end to be inserted; and a through hole that is inclined so that the side of the through hole is lower at a position spaced apart from the through hole in the opening direction. A locking projection protruding from the locking projection and a regulating projection that cooperates with the locking projection to regulate the position of the U-shaped end portion locked by the locking projection.

[Operation] According to the above means, in order to attach the dust remover to the rotating body, the U-shaped end of the dust remover is applied to the through hole from the opposite side of the locking protrusion, and the U-shaped end is attached to the rotating body. By simply pushing the shaped end portion, it is inserted into the through hole, climbs over the locking projection, and is fitted and locked between the locking projection and the regulating projection. Thereby, the U-shaped end of the dust remover is fixedly attached to the rotating body.

[Embodiment] An embodiment embodying the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows a vacuum cleaner, which is composed of a main body case divided into left and right parts, and a dust collection case 2 detachably connected to an opening of the main body case 1.

This connection is achieved by connecting a locking part 3 provided at the bottom of the main body case 1 to an engaging part 4 provided at the bottom of the dust collection case 2.
This is done by engaging the engaging claws 6 formed at the top of the dust collection case 2 with the locking holes 5 formed at the top of the main body case 1 .

Inside the main body case 1, an electric blower 7 and a cord winding device 8 are provided. Electric blower 7
The periphery and rear part of the intake port are supported by anti-vibration rubber 9. The cord winding device 8 is a power cord 10
The cord reel 11 has a cord reel 11 for winding up the cord, and teeth 12 are formed on the outer periphery of the cord reel 11.
This tooth portion 12 meshes with a transmission gear 14 rotatably supported by the front wall 13 of the main body case 1. A connecting gear 15 is integrally formed in a portion of the transmission gear 14 exposed on the dust collecting case 2 side from the front wall 13, and the connecting gear 15 is connected to the dust collecting case 2.
The filter 16 is connected to a dust removal device 17 provided therein.

A front opening 18 for disposing of dust is formed at the front of the dust collection case 2, and a lid body 19 is provided at the front of the dust collection case 2 so as to cover the front opening 18 in an openable and closable manner.
A hose connection port 2 for connecting a hose (not shown) is provided in the center of the lid body 19.
0 is formed.

The lid body 19 is held in a closed state by a hooking piece 21 hooked to a hooking part 23 by a coil spring 22, and by operating a lever 24, the hooking piece 21 is pushed down against the coil spring 22. As a result, the locking piece 21 is disengaged from the locking portion 23, the locking action is released, and the lid body 19 can be opened.

Below the dust collection case 2, there is a partition wall 2 extending horizontally from the front opening 18 toward the main case 1 side.
5 is provided on the rear surface of the dust collection case 2.
A rear opening 27 is provided for attaching and removing the coarse filter 26 and the fine filter 16.

The coarse filter 26 is formed of a net-like filter, and is engaged and supported by the partition wall 25 from the rear opening 27 side. Due to this engagement, inside the dust collection case 2,
A first dust collection chamber 28 and a second dust collection chamber 29 are formed using the coarse filter 26 and the partition wall 25 as partition walls.

The filter 16 is made of a material such as paper or nonwoven fabric formed into a wave shape, and as shown in FIGS.
The rib 16a that is hit by the zero and the holding frame 16c on its outer periphery are integrally molded from synthetic resin.

A dust removal device 17 that removes dust from the filter 16
The rotating body 33 has an internal gear 31 that meshes with the connecting gear 15 when the main body case 1 and the dust collection case 2 are combined, and is provided with an operation rib 32 for a manual dust removal body, and a rotating body 33 that rotates. The dust remover 30 has its base end fixed to the body 33 and strikes the back side of the filter 16. Dust remover 3
As shown in FIGS. 2 and 5, 0 is made of an elastic wire having a coil portion 30a at the other end, and has a U-shaped end portion 30b bent into a substantially U-shape at its base end. The coil portion 30a is arranged at a position where it abuts against the rib 16a on the back side of the filter 16. The rotating body 33 is shown in FIGS. 4 and 5.
As shown in the figure, a through hole is opened in the radial direction in one connecting portion 33a and has a gap (a gap slightly larger than the wire diameter) and a width into which the U-shaped end portion 30b can be inserted. Gate-shaped protruding wall 3 forming 33b
3c, a locking projection 33d that is inclined so that the side of the through hole 33b is lower and projects slightly higher than the wire diameter dimension of the U-shaped end 30b, and the locking projection 33d as shown in FIG. 33d to U-shaped end 30b
It has a regulating protrusion 33e that protrudes a little higher than the locking protrusion 33d at a position spaced apart from it at a distance approximately equal to the wire diameter.

Next, a method of attaching the dust remover 30 to the rotating body 33 will be explained.

By applying the U-shaped end 30b of the dust remover 30 to the through-hole 33b from the outer circumferential side of the rotating body 33 and simply inserting it into the through-hole 33b in this state, the U-shaped end 30b can be attached to the inclination of the locking protrusion 33d. Climb over the locking protrusion 33d along the surface and ride the locking protrusion 33d.
and the regulating protrusion 33e. As a result, the radial movement of the U-shaped end 30b is controlled by the cooperative action of the locking protrusion 33d and the regulating protrusion 33e.
Moreover, the movement in the direction perpendicular to this is caused by the protruding wall 33c.
The dust remover 30 is firmly fixed to the rotating body 33 by the inner surface of the through hole 33b.

[Effects of the invention] As described in detail above, in the present invention, in particular, the substantially U-shaped end portion 30b is bent at the base end of the dust remover 30, while the rotating body 33 is bent. , a through hole 33b that is open in the radial direction and has a distance and width that allows the U-shaped end 30b to be inserted, and a through hole 33b side at a position spaced from the through hole 33b in the opening direction A locking protrusion 33d that is inclined and protrudes downwardly, and the U-shaped end 30b that is locked to the locking protrusion 33d is connected to the locking protrusion 33.
A regulating protrusion 33e that cooperates with the protrusion 33e to regulate the position is formed.

Therefore, in order to attach the dust remover 30 to the rotating body 33, the U-shaped end 30b is inserted into the through hole 33.
b from the opposite side of the locking protrusion 33d, and by simply pushing the U-shaped end 30b into the through-hole 33b and climbing over the locking protrusion 33d, the locking protrusion 33d is removed. and the regulating protrusion 33e. In addition, the structure for mounting it is simple, and it can be manufactured at low cost, which provides excellent practical effects.

[Brief explanation of the drawing]

Figure 1 is a cutaway side view of the main parts of the vacuum cleaner, Figure 2 is an enlarged rear view of the dust collection case, and Figure 3 is A of Figure 2.
- A sectional view, FIG. 4 is an enlarged sectional view of a main part, and FIG. 5 is an exploded perspective view of FIG. 4. In the figure, 16 is a filter, 30 is a dust remover, 30b
is a U-shaped end, 33 is a rotating body, 33b is a through hole, 3
3d is a locking protrusion, and 33e is a regulating protrusion.

Claims (1)

[Claims for Utility Model Registration] A rotating body 33 that rotates along the back surface of the filter 16 bent into a waveform, and a base end supported by the rotating body 33 and the other end that rotates as the rotating body 33 rotates. A dust remover 3 made of an elastic wire that hits the filter 16
0, a substantially U-shaped end 30b is bent at the base end of the dust remover 30, and the rotating body 33 has a radial direction opened to
and a through hole 33b having a distance and width into which the U-shaped end 30b can be inserted, and a through hole 33 at a position spaced from the through hole 33b in the opening direction thereof.
A locking protrusion 33d that is inclined and protrudes so that the b side is lower, and a regulation that cooperates with the locking protrusion 33d to regulate the position of the U-shaped end 30b that is locked to the locking protrusion 33d. A dust removal device for a vacuum cleaner, characterized in that a protrusion 33e is formed.