JPH0221949Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cleaning hand brush used for removing stains from tile floors, ceramic sinks, etc.

In conventional brushes of this kind, the bristle-planted surface of the brush base on which the bristles are planted is either flat or curved with a certain curvature, and the length of the bristles is almost the same, so the strength of the bristles on the tip surface is the same regardless of the part. constant. When brushing a tile floor with this type of brush, the front half of the bristles are used most frequently and with relatively strong force.
The tip of the bristles is also used to remove particularly stubborn dirt. However, the stiffness of the hair is almost constant in all parts of the hair, so when a strong force is applied to the hair, the hair at the tip elastically deforms and curves, causing the tip to rub against the floor with a concave surface. . If you use it repeatedly in this way, the bristles in this area will quickly become plastically deformed and the tips of the bristles will turn outward, making it impossible for the bristles to rub against the floor and function as a brush. Put it away.

In view of the above-mentioned drawbacks, this invention is a cleaning hand that strengthens the front part of the bristles, which is used most frequently and where the strongest force is applied, without changing the material of the bristles themselves, and by keeping the tips of the bristles in one plane. The purpose is to provide brushes.

In order to achieve this purpose, the present invention bulges the front bristle-planting surface of the brush base into a hemispherical shape, and implants the bristles so that the entire bristle tip surface is flat on the bristle-planting surface of the brush base including the hemispherical bulge. At the same time, the bristles on at least the tip side of the brush on the outer periphery of the bulge are planted outward so that the tips of the bristles protrude outside the outline of the brush base, so that the bristles of the bulge are away from the center of the bulge. It was formed so that it gradually became longer towards the periphery.

The present invention will be described in detail below based on a preferred embodiment shown in the accompanying drawings.

FIG. 1 is a perspective view of an embodiment of the cleaning hand brush of the present invention with some bristles omitted, and FIG. 2 is a longitudinal sectional view of the same embodiment. In the figure, 11 is the brush base, 12 is the flocked surface, 13 is the bulge formed in the front of the flocked surface 12, 14 is a hole for hanging, and 21 is the bristles for the brush planted on the flocked surface 12. be.

A bulge 13 with a smooth curvature is formed on the flocked surface 12 at the front of the base 11, as clearly shown in FIG. The tips of the bristles are biased forward and outward at the front edge and outer edge of the bulge 13, and at the center of the bulge 13 almost perpendicular to the outer surface of the bulge 13, and on the other bristle surfaces 12. The bristles 21 are planted substantially perpendicularly to this plane, and the tips of these bristles 21 are positioned substantially on the same plane. Therefore, the hair 21 planted on the outer periphery of the bulge 13 is
The hair 21 planted at the most protruding part in the center of 3 is shorter;
3, it changes continuously from the outer periphery to the center. Since the bending stiffness of the bristles 21, which is the so-called stiffness of the bristles 21, is inversely proportional to the length of the bristles 21, the stiffness of the bristles 21 at the center of the bulge 13 in the illustrated embodiment is as follows: The strength of the hair 21 at the outer periphery becomes less than half that at the center, and the strength of the hair 21 becomes weaker as it goes outward.

Generally, if the hair is planted densely, the stiffness of the tip surface of this part can be further strengthened, so the tip part, the most swollen part of the bulge 13, and the flat surface where relatively strong force is applied. Hair 21 in the center part
It is preferable to plant them densely.

According to the cleaning hand brush of the present invention having the above configuration, the corner formed by the floor and wall can be easily polished with the bristles of the bulge protruding from the outer periphery of the cleaning hand brush base, and the bulge also The strong bristles can be used to easily remove stubborn stains.

Although the illustrated embodiment shows the case where the present invention is applied to a hand brush without a handle, it is also possible to attach a handle to this, and the present invention can be used in all types of cleaning hand brushes that have bristles planted on the base. Of course.

As mentioned above, the cleaning hand brush of this invention can be used according to the intended purpose by applying a simple process to the cleaning hand brush base to give the bristles a wide range of stiffness changes. In addition, since the strength of the stiffness changes continuously, it is comfortable to use, and has many practical benefits, such as being able to provide a cleaning hand brush that is resistant to deformation and has a long service life.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the cleaning hand brush of the present invention with some bristles omitted, and FIG. 2 is a longitudinal sectional view of the same embodiment. 11... Brush base, 12... Flocking surface, 13...
...bulge, 21...hair.

Claims (1)

[Scope of utility model registration request] The front flocking surface of the brush base is bulged out in a hemispherical shape,
The bristles are planted on the bristle-planting surface of the brush base including the hemispherical bulge so that all the bristles are flat, and the bristles on at least the brush tip side of the outer periphery of the bulge are so that the tips of the bristles are closer to the outline of the brush base. A hand brush for cleaning, characterized in that the bristles of the bulge are planted outward so as to protrude outward, and the bristles of the bulge gradually become longer from the center of the bulge toward the periphery.