JPS6245636Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to improving the suction tool of a vacuum cleaner, and its purpose is to make it easier to attach the brush of the suction tool.
And we are trying to do it reliably.

As shown in FIG. 1, a conventional vacuum cleaner with a brush attached to the suction port has an upper outer shell 102 on the upper part and a lower outer shell 103 on the lower part of a bumper 101 provided over almost the entire circumference of the central protrusion of the suction tool. In addition, a pipe 104 is provided at the rear, a roller 105 is provided on the front lower surface of the lower outer shell 103, an intake port 106 is provided at the center of the lower surface, and a brush 107 is provided at the rear of the roller 105.
There was one with a . The way to stop the brush 107 is as shown in FIGS.
is caulked together with a wire 109 using a metal fitting 108, and the brush is cut short at both end portions 110 of the metal fitting 108. A hole 1 whose center is slightly shifted upward is formed on the side of the brush mounting portion 111 of the lower outer shell 103.
12 are provided. The brush mounting portion 111 includes a wall 113 having a U-shaped cross section and L-shaped ribs 114 at both ends thereof.

In the above-mentioned construction, the brush is attached by moving one end of the metal fitting 108 in the direction of the arrow a from below the attachment portion 111 and inserting it into the hole 112 as shown in Fig. 4, then bending the other end of the metal fitting 108 in the direction of the arrow b by utilizing its elasticity, and then pulling it in the direction of the arrow c, so that the brush 107 is attached as shown in Fig. 2.
When it is pushed upward, its movement is stopped by the wall 113, and when it is pulled downward, the rib 11
The metal fitting 108 is fixed by the brush 10.
Even if the brush 107 is pushed back and forth, it will not come off because the wall 113 is U-shaped. When the brush 107 is pushed right and left, the hole 112 is in contact with the brush mounting part 11.
Since the center of the metal fitting 108 is offset from that of the hole 11,
2, the metal fitting 108 will not come off. In this way, no matter what direction force is applied to the brush 107, the metal fitting 108 that holds the brush 107 will not come off.

Brush 10 for various movements as mentioned above
7 will not come off, but there is a hole 11 on the side of the suction device.
2 is open, and the internal metal fitting 1 is inserted through the hole 112.
The disadvantage was that 08 mag was visible and the appearance was difficult to see.

The present invention aims to solve the drawbacks of the above-mentioned conventional example at low cost, and an embodiment thereof will be described below based on the drawings.

In Fig. 5, this suction device has an upper outer shell 2 at the top of the bumper 1, a lower outer shell 3 at the bottom, and a pipe 4 at the rear. An intake port 6 is provided with a brush 7 behind it. As shown in FIGS. 6 and 7, the brush 7 is caulked together with the wire 9 by a metal fitting 8, and both end portions 1 of the metal fitting 8 are crimped together.
The brush was cut short at 0. A hole 12 is provided on the side surface of the brush mounting part 11 of the lower outer shell 3, and this hole 12 is arranged on the back side of the bumper 1. The brush mounting portion 11 is composed of a wall 13 having a U-shaped cross section and L-shaped ribs 14 at both ends thereof. The dimensions of the hole 12, rib 14, and wall 13 are as shown in FIG.
If the dimension from to the bottom of the hole 12 is A, then A<
It is set to B.

With the above configuration, as shown in FIG. 9, the brush is mounted by moving one of the metal fittings 8 from below the mounting part 11 in the direction of arrow a and passing it through the hole 12, and then using the elasticity of the metal fitting 8. By bending the other end in the direction of arrow b and then pulling it in the direction of c, it is attached as shown in FIG. When the metal fitting 8 is pushed in the direction of arrow a, the metal fitting 8
comes out from the hole 12 and pushes the bumper 1, but since the bumper is usually made of a soft material such as rubber, it stretches and deforms to some extent, allowing the metal fitting 8 to protrude outward from the hole 12. After the metal fittings 8 are attached, the bumper 1 returns to its original state due to its elasticity. When the brush 7 is subjected to force upward, downward, front and back during cleaning, it is stopped by the wall 13 and ribs 14 as in the conventional case, so the metal fitting 8 will not come off. Furthermore, when force is applied to the left and right sides, the metal fitting 8 will not fit into the hole 12 because A<B, as shown in FIG. 8, and will not come off in the same way. As shown in FIG. 5, a hole 12 is hidden on the side surface of the suction tool by a bumper 1, so that the drawback of the conventional device, such as the interior being visible and the appearance being poor, is eliminated. Also, since no new parts are used, there is no particular increase in material or assembly costs, resulting in low costs.

Note that the hole 12 may be a U-shaped groove as shown in FIGS. 10 and 11.

As described above, according to the present invention, it is possible to provide, at low cost, a suction tool that has a very simple structure, has a good appearance, is easy to attach a brush to, and is hard to come off. In addition, the bumper can block the holes to prevent bypass air from flowing in through the holes, thereby improving dust suction performance. In particular, since the bumper is brought into close contact with the bumper in the direction of closing the hole due to the suction negative pressure, the bypass air inflow can be reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional suction tool, Fig. 2 is a front cross-sectional view of the brush section, Fig. 3 is a cross-sectional view of the same side, Fig. 4 is an explanatory diagram of the installation of the brush, and Fig. 5 is the present invention. 6 is a front sectional view of the brush portion, FIG. 7 is a sectional view of the same side, FIG. 8 is an enlarged sectional view of the main part, FIG. 9 is an explanatory diagram of brush installation, 1st
FIG. 0 is an enlarged sectional view of a main part of another embodiment, and FIG. 11 is a side view of the same. 1...bumper, 3...lower outer shell, 7...brush, 8...metal fittings, 12...hole, 14...rib.

Claims (1)

[Scope of utility model registration request] Ribs are formed on both sides of the lower outer shell of the suction device, and an opening is provided between the ribs, and with the brush protruding downward from the opening, the supporting metal fitting is held by the ribs, and the opening is A suction tool for a vacuum cleaner, in which a hole is provided on at least one side of the part through which a metal fitting is inserted when pushed diagonally upward from the opening, and the outside of the hole is covered and closed with a bumper made of an elastic material.