JPS58455Y2 - Rotating brush for vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rotating brush for a vacuum cleaner.

Conventionally, rotating brushes installed at the suction opening at the bottom of a case that runs on the floor have a brush stand with a constant outer diameter, and the brush stand has bristles of a certain length planted on it. It is.

Additionally, the connection part with the dust collection part is generally formed in the center of the suction opening, and sufficient suction force is obtained near the center of the suction opening, which is close to the connection part with the dust collection part. However, it has the disadvantage that the suction force is weakened at both ends of the suction opening, that is, at both ends of the brush stand, and the surface to be cleaned cannot be cleaned uniformly.

This invention was developed in view of the above points, and the object is to provide a rotating brush for a vacuum cleaner that can clean the cleaning surface uniformly and without leaving any dirt behind.

This idea is to form a horizontally long suction opening on the bottom surface of the case that runs on the floor, the center of which is connected to the dust collection section, and a horizontally long brush stand that is rotatably held in this suction opening from the center of the case. The outer diameter is set to become thicker toward both ends, and the bristles are planted on the outer periphery of the brush stand, with the bristles becoming shorter and shorter toward both ends of the brush stand, and from the center of the brush stand to the tip of the bristles. It is characterized by having uniform radii.

Therefore, the bristles of the flocked hairs were shortened and strengthened toward both ends of the brush stand, thereby enhancing the brushing effect and promoting the removal of dirt from the floor, and gradually becoming thinner toward the center of the brush stand. As a result, the flow of suction airflow is made smoother, and detached dirt is smoothly sucked in, so that the surface to be cleaned can be cleaned uniformly and without leaving any dirt behind.

An embodiment of this invention will be described based on FIGS. 1 to 3.

A suction port body 1, which is a case, is connected via an extension pipe 2 and a hose 3 to a cleaner main body 4, which is a dust collection section.

A horizontally elongated suction opening 5 is formed on the lower surface of the suction opening 5, and a brush stand 8 on which a large number of bristles 7 are planted is connected to a feeding shaft 9 at both ends in a suction chamber 6 above the suction opening 5. It is rotatably held by a bearing (not shown).

The extension pipe 2 is connected to a joint pipe 10 formed integrally with the suction port body 1, and the joint pipe 10 and a suction hole 11 formed on the side surface of the central part of the suction chamber 6 are connected by a hose 12. has been done.

A pulley 13 is provided on one side of the brush stand 8, and a belt 1 is connected between the pulley 13 and a motor 14 built in the suction body 1.
5 is stretched.

The brush stand 8 is curved in the axial direction so that the outer diameter is narrow at the center and thick at both ends.

The bristles 7 are planted over the entire length of the brush stand 8, and have a constant outer diameter at both the center and both ends.

That is, the length of the bristles of the bristles 7 is determined to be long at the center of the brush stand 8 and gradually become shorter toward both ends.

In such a configuration, cleaning is performed while the brush stand 8 and the flocked hair 7 planted on the brush stand 8 are rotated integrally by the driving force of the motor 14.

A suction hole 11 connected to the cleaner body 4 and sucking dust is formed on the side surface of the center of the suction chamber 6, so the suction force is strongest around the suction hole 11, that is, near the center of the brush stand 8. It gradually weakens toward both ends of 8.

The length of the bristles of the flocked bristles 7 planted on the brush stand 8 becomes gradually shorter and stiffer toward both ends of the brush stand 8, which enhances the brushing effect and removes dirt from the floor surface. Both ends can be facilitated.

In addition, since the outer diameter of the brush stand 8 is gradually narrowed toward the center, the flow of suction airflow is smoothed, and the dust peeled off from the floor surface can be smoothly sucked up at both ends of the brush stand 8. can.

Further, since the outer diameter of the flocked hair 7 is constant, the planting of the flocked hair 7 and the processing work for adjusting the outer diameter of the flocked hair 7 can be easily performed.

Incidentally, FIGS. 4 and 5 show a modification of this invention.

The brush stand 16 shown in FIG. 4 is linearly sloped so that the outside diameter is the narrowest at the center and the widest at both ends, and the outside diameter of the bristles 17 is constant.

That is, the length of the hair of the flocked hair 17 is set to become gradually shorter toward the outer end.

The brush stand 18 shown in FIG.
The outer diameter of is constant.

That is, the length of the hair of the flocked hair 19 is set to become shorter in stages toward the outer end.

Therefore, the brushing effect is enhanced at the outer end of the brush stand 16, 18, and the brushing action reliably sucks up the peeled off dirt and cleans the surface to be cleaned uniformly.

This device has the above-mentioned structure, so the bristles of the flocked hairs are gradually made shorter toward both ends of the brush stand to strengthen the stiffness, resulting in a more effective brushing effect. By increasing the brush stand, it is possible to promote the removal of dirt from the floor surface, and by making the brush stand gradually narrower toward the center, the flow of suction air is smoother, and the separated dirt can be sucked in smoothly. This has the effect that the entire surface to be cleaned can be cleaned uniformly and without leaving any dirt behind.

[Brief explanation of drawings]

The drawings show one embodiment of this invention; Fig. 1 is an overall side view, Fig. 2 is a partially enlarged longitudinal sectional side view, and Fig. 3 is a partially enlarged vertical side view.
The figure is an enlarged front view of the brush stand and the bristles, and FIGS. 4 and 5 are front views showing modifications of the brush stand and the bristles. 1... Suction port body (case), 7... Flocking, 8... Brush stand, 16... Frush stand, 17... Hair transplantation, 18... Frush stand, 19... Hair transplantation.

Claims (1)

[Scope of utility model registration request] A case that runs on the floor has a horizontally elongated suction opening at the bottom that is connected to the dust collection section at the center, and a horizontally elongated brush stand that is rotatably held in this suction opening is directed from the center toward both ends. The outer diameter is set to be thicker as the brush holder approaches, and the bristles are planted on the outer periphery of the brush holder, with the bristles becoming shorter toward both ends of the brush holder, and the radius from the center of the brush holder to the tip of the bristle is uniform. Rotating brushes for vacuum cleaners featuring the following features: