JPS62588Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a brush for a nozzle of a suction vacuum cleaner. The present invention relates to a brush for a nozzle of a suction cleaner configured so that the peripheral edge of a brush cloth is held between a brush body and a presser cover by sequentially overlapping and fixing the cover.

Prior Art Such a technology is disclosed in, for example, Japanese Patent Publication No. 19396/1983. That is, in a configuration in which the peripheral edge of the brush cloth is held between the brush body and the presser cover, the peripheral edge of the upper surface of the brush body is made to protrude upward, and the peripheral edge protrusion is provided with pinning teeth for stabbing and fixing the brush cloth. Ribs that are formed at predetermined intervals and that engage the brush cloth on the inside of the peripheral protrusions on the lower surface of the other presser cover are provided so as to mesh with the pinning teeth, and the pinning teeth and the locking ribs engage with each other. The peripheral edge of the brush cloth is held in place.

Problems to be Solved by the Invention However, in the case of the above-mentioned prior art, there are the following difficulties.

(b) When tensioning the brush cloth, the peripheral edge of the brush cloth is simply pressed against the ribs and fixed by the pinning teeth, so the force to tension the brush cloth is weak, and the force that causes dust attached to the carpet, etc. (b) Each rib pushes the brush cloth between each tooth, causing undulating folds and wrinkles along the outer periphery of the brush, making it impossible to tension the brush cloth beautifully; (c) Cleaning. The tension that acts on the brush cloth at this time is
Even though it is directly secured to the pin teeth and secured by the locking rib, during long-term use, the pin part of the brush cloth comes loose, causing the tension of the brush cloth to loosen, resulting in poor durability. .

The present invention was devised to solve these difficulties, and its purpose is to create a structure that generates a strong tensioning force when the brush cloth is stretched and held. The purpose is to be able to forcefully remove dust adhering to carpets, etc., and also to allow the brush cloth to be stretched beautifully without creating folds or wrinkles. The purpose is to strongly prevent the pricking part of the brush cloth from loosening due to the applied tension.

Means for Solving the Problems The present invention achieves the above object, and provides a brush for a nozzle of a suction vacuum cleaner having the basic configuration described in the <Industrial Application Field> section above. A large number of stabbing protrusions are arranged at appropriate intervals along the inner side of the periphery of the upper surface of the main body and protrude upward, and a large number of stabbing protrusions are arranged at appropriate intervals along the inner side of the periphery of the lower surface of the presser cover. In addition to arranging them in a row and protruding downward, a presser protrusion is formed along a part a little further outward than the row of protrusions of this pricking protrusion, and the downward pricking protrusion bites between the pitches of the upward pricking protrusion. In this case, the peripheral edge of the brush cloth was pierced and locked from both the upper and lower sides with both upper and lower stabbing protrusions, and the part of the periphery of the brush cloth that was pierced and locked was connected to the periphery of the top surface of the brush body. The brush cloth is characterized by being constructed so that the brush cloth is held stretched by pressing down the intermediate portion between the abutting portions with a presser protrusion.

Function According to the present invention, the upward stabbing protrusion and the downward stabilizing protrusion pierce and lock the peripheral edge of the brush cloth from both upper and lower sides, and the piercing and locking portion of the peripheral edge of the brush cloth. The intermediate position between the periphery of the upper surface of the brush body and the abutting part is pressed down by the presser foot protrusion, and this pressing action causes the brush cloth to be strongly pulled and stretched, and the sashimi of the brush cloth is It has the effect of increasing the ability to attract trash.

In addition, the presser ridges act to prevent the brush cloth from forming folds or wrinkles by pressing the outside of the locking portion, which is pierced in a toothed manner on the peripheral edge of the brush cloth, at right angles to the tensioning force direction. .

In addition, the upper and lower retaining protrusions generate twice the retaining force, and the retaining force of the peripheral edge of the brush cloth is strengthened by the presser foot protrusion, which acts on the brush cloth during cleaning. The resulting tension is subjected to a strong resistance by the presser protrusion, and then is applied to the upper and lower pinning protrusions, strongly countering the unraveling force of the pinning portion of the brush cloth.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a partial longitudinal sectional side view showing the main parts of the present invention, and FIG. 2 is a partial vertical sectional front view.

In these figures, numeral 1 is the nozzle of the vacuum cleaner, 2 is the brush body, 3 is a sponge spread on the back side of the brush cloth 4, 5 is a presser cover, and the underside of the brush body 2 is covered with a brush cloth with sponge ( (hereinafter simply referred to as a brush cloth) 4, and the peripheral edge 4a of the brush cloth 4 is held by the brush main body 2 and the presser cover 5,
The brush main body 2 and the presser cover 5 are fixed while holding the brush cloth 4, and the nozzle brush constructed in this manner is installed in the nozzle 1.

The presser lid 5 is constructed as shown in FIGS. 3 to 5. That is, the peripheral edge of the lower surface of the presser lid 5 is made to protrude downward to form the lower surface peripheral protruding strip 6, and the protruding seat 7 is provided along the inner side of the lower surface circumferential protruding strip 6. A large number of stabbing protrusions 8 are arranged on the strip seat 7 at predetermined intervals and protrude downward. A presser protrusion 9 is formed along. Then, the presser foot projections 9 are removed from the four corners, and the presser foot projections 10 are removed.
is projected downward.

On the other hand, the brush body 2 is constructed as shown in FIGS. 6 to 8. That is, the peripheral edge of the upper surface of the brush main body 2 is made to protrude upward to form the upper surface peripheral protrusion 11, and a large number of stabbing protrusions 12 are arranged at required intervals along the inner side of the upper peripheral protrusion 11. Arrange them in a row and protrude upwards. The upward stabbing protrusions at the four corners have been removed.

Note that the downward stabbing protrusion 8 of the presser cover 5 and the upward stabilizing protrusion 12 of the brush body 2 are arranged so as to engage with each other within the pitch.

Next, the function of holding the brush cloth 4 under tension by the brush main body 2 and the presser cover 5 will be explained in Figures 1 to 3.
This will be explained using figures.

First, the lower surface of the brush main body 2 is covered with the brush cloth 4, and the peripheral edge 4a of the brush cloth 4 is folded back to the upper surface side of the brush main body 2 and stuck by sticking into the upward stabilizing protrusion 12, and the excess of the brush cloth 4 is removed. Fold the four corners double.

Next, the presser lid 5 is placed on top of the brush body 2 and fixed. At this time, the downward stabbing protrusions 8 of the presser cover 5 bite between the pitches of the upward stabilizing protrusions 12 of the brush main body 2, thereby stabbing and locking the peripheral edge 4a of the brush cloth 4 from both upper and lower sides, thereby locking the brush cloth 4. The double-folded portions of the four corners of the cloth 4 are pierced and locked using presser pin projections 10. Moreover, at this time, an intermediate portion 4b of the peripheral edge portion 4a of the brush cloth 4 between the piercing and locking portion and the portion that abuts with the upper surface peripheral edge protrusion portion 11 of the brush body 2 is pressed down by the presser protrusion portion 9, This pushing down action causes the brush cloth 4 to
will be strongly pulled and stretched.

The presser ridge 9 presses and holds the brush cloth 4b against the upper surface of the brush body 2 as it is.

In order to fix the brush main body 2 and the presser cover 5 while holding the brush cloth 4, the fitting protrusion 13 protruding from the upper surface of the brush main body 2 is inserted into the receiving seat 14 formed on the lower surface of the presser cover 5. At the same time as the brush body 2 is seated, a locking protrusion 16 is formed at a predetermined position on the central row portion 15 protruding from the upper surface of the brush body 2, and this is inserted into a slit-shaped locking hole 17 opened at a corresponding position on the presser cover 5. The circular protrusions 13a formed on the stepped portions 13b of the fitting protrusions 13 of the brush body 2 are then fixed by high frequency welding to the respective receiving seats 14 of the presser lid 5.

The nozzle brush configured in this way is
The mounting protrusion 18 protruding from the upper surface of the presser cover 5 is fitted into the mounting hole 19 of the nozzle body 1a, and is locked into the nozzle 1 by being locked with the locking member 20. In addition, in FIG. 1, the reference numeral 21 is a suction port.

In the above embodiment, the upper surface circumferential protruding strip 11 is formed on the upper circumferential edge of the brush body 2, and the lower surface circumferential protruding strip 6 is formed on the lower circumferential edge of the presser lid 5, so that the brush cloth 4 is held between the two. Although we have described the following methods, these are not necessarily necessary.

Effects of the invention The present invention is constructed and operated as described above, and has the following effects.

(a) Since it has a structure that applies a strong tensioning force, and the brush cloth can be strongly pulled and tensioned, it is possible to strengthen the force that causes the dust attached to the brush cloth to be drawn up.

(b) By pressing the outside of the pinning part with a presser protrusion perpendicular to the tensioning direction, the stretched brush cloth can be beautifully stretched without forming folds or wrinkles.

C. The retaining force of the peripheral edge of the brush cloth is greatly strengthened by the doubling of the number of retaining protrusions from both the upper and lower directions and the pressing by the presser protrusions, and the tension acting on the brush cloth during cleaning is reduced. After being reduced by the drag force from the presser foot protrusions, the number of pinning protrusions on the upper and lower sides is doubled, and the force to counter the unraveling force of the pinning portion of the brush cloth is more than twice that of the conventional example. This makes the brush much more durable.

[Brief explanation of the drawing]

Fig. 1 is a partial longitudinal sectional side view of the nozzle showing the main parts of the present invention, Fig. 2 is a partial longitudinal sectional front view of the same as above, and Fig. 3
The figure is a bottom view of the presser cover, FIG. 4 is a sectional view taken along the - arrow in FIG. 3, FIG. 7 is a cross-sectional view taken along the - arrow in FIG. 6, and FIG. 8 is a front view including a cross-section taken along the - arrow in FIG. 6. 2...Brush body, 4...Brush cloth, 4a...
Brush cloth periphery, 4b...middle portion, 5...presser cover, 8...downward stabbing protrusion, 9...presser protrusion, 1
0... Presser pin projection, 12... Upward pin pin projection.

Claims (1)

[Claims for Utility Model Registration] 1. By covering the lower surface of the brush main body 2 with a brush cloth 4, and fixing the brush cloth 4 on the brush main body 2 by sequentially overlapping the peripheral edge 4a of the brush cloth 4 and the presser cover 5,
In a nozzle brush for a suction vacuum cleaner, which is constructed by holding the peripheral edge 4a of the brush cloth 4 between the brush body 2 and the presser cover 5, a large number of stabbing protrusions are provided along the inner part of the upper surface of the brush body 2 from the peripheral edge. 12 are arranged at appropriate intervals and provided to protrude upward, and a large number of stabbing protrusions 8 are arranged at appropriate intervals and provided to protrude downward along the inner part of the periphery of the lower surface of the presser cover 5,
A presser protrusion 9 is formed along a part of the pinning protrusions 8 slightly outward from the row of protrusions, and the downward pinning protrusions 8 are bitten between the pitches of the upward pinning protrusions 12, so that the brush cloth 4 The peripheral edge 4a of the brush cloth 4 is pierced and locked from both upper and lower sides with the upper and lower stabbing protrusions 8, 12, and the pierced and locked portion of the peripheral edge 4a of the brush cloth 4 and the periphery of the upper surface of the brush body 2 are Intermediate portion 4 between the part and the contact point
A brush for a nozzle of a suction cleaner, characterized in that a brush cloth 4 is stretched and held by pressing down with a presser protrusion 9. 2. The brush for a nozzle of a suction cleaner described in Claim 1 of the Utility Model Registration Claim, in which the peripheral edge of the upper surface of the bra support body 2 is made to protrude upward. 3. In the brush for a nozzle of a suction cleaner described in claim 1 or 2 of the utility model registration claim, the presser bar projections 9 are omitted at the four corners of the lower surface of the presser cover 5, and the presser bar barbs 10 are provided. This presser foot protrusion 10 is provided to protrude downward, and the overlapped portions of the four corners of the peripheral edge 4a of the brush cloth 4 are pierced and locked.