KR20100023988A

KR20100023988A - Hair of chalkboard eraser

Info

Publication number: KR20100023988A
Application number: KR1020080082623A
Authority: KR
Inventors: 유재원
Original assignee: 유재원
Priority date: 2008-08-23
Filing date: 2008-08-23
Publication date: 2010-03-05

Abstract

PURPOSE: A duster for a blackboard eraser is provided to conveniently handle an eraser by forming the upper part of a main body into a concave shape, to enhance esthetics, and to prevent vibrations or noise. CONSTITUTION: A duster for a blackboard eraser comprises: a suction hole(5) which is formed lengthwise on the upper surface portion of a main body(1) and which has a slope on one side.; a motor, a suction fan and a dust barrel(2) which are installed inside the main body; a brush(4) which passes through the suction hole and is installed in the body; a connector which is perpendicularly projected to the bottom surface along the edge of the suction hole of the upper surface portion of the main body; an inlet part of a dust pack(7) which is fitted in the connector; and an exhaust hole formed on the main body and a concave handle.

Description

Hair of chalkboard eraser}

The present invention relates to a hair clipper eraser in more detail, the suction fan is mounted on the inside of the main body of the eraser in order to place the blackboard eraser on the upper part of the main body to move the hair automatically by the operation of the infrared sensor dust attached to the eraser It is about the eraser hair for the blackboard that allows the back to be departed.

Conventionally, there have been various proposals as blackboard eraser hairs (hereinafter referred to as "hair").

The hairs can be divided into two categories: manual hairs and automatic hairs. The former can be widely used for its power, but due to the artificial process of demineralization, consumers are rapidly turning away from it for today. Since the eraser is automatically separated, it has been put into practical use for convenience and health reasons.

Therefore, various hairs have been proposed according to the development of the latter, and now it is time to consider not only the aspect of automatic demineralization but also the structure and design aesthetics that meet the trend of advanced products.

The present invention has been proposed in consideration of the above-mentioned matters, and in particular, a utility model registration application No. 4212 "Suction Blackboard Eraser Hair Removal Machine" in 1988 and Utility Model Registration Application No. 13316 "Blackboard Eraser Hair Clipper" in 1989 The invention relates to an improvement.

That is, the blackboard eraser hairdresser proposed in the Utility Model Registration Application No. 4212 (filed March 29, 1988) has a structure and a longitudinal body in which a suction hole is drilled long on the upper surface and the brush is fixed to both sides of the suction hole. On one side of the housing-type dust container and its end portion has a feature that is provided with a structure having a filter body.

It is an object of the present invention to solve the above problems and further to provide an eraser hair clipper that is convenient to use in consideration of its construction and constructional aspects for the clean use of the hair clipper.

A long suction hole is formed in the upper surface of the main body, the longitudinal both sides of the upper surface portion is formed as a step, and one side thereof is formed as an inclined portion, and a motor (M), a suction fan, and a dust container are installed therein. A connector inserted into the body fixed at the bottom and the main body are separated into an upper and lower body and assembled so as to protrude to the bottom along the edge of the suction hole of the upper surface, and an inlet of the dust pack fitted to the connector; In the blackboard eraser made of exhaust holes and concave handles respectively formed in the bottom and side portions of the main body, the rectifier circuit (A) of the resistor (R1) (R2) and the capacitor (C1) of the diode (D1), The rectifier circuit (A) is connected in series with an infrared sensor consisting of a light emitting diode (D2) and a light receiving diode (D3), and a triac (T) of a coupler (C1) consisting of a main body and a CDS element is applied. Which is connected to the motor (M) to one terminal of the terminal to the rated voltage.

As described above, the present invention eliminates the random suction of chalk powder that is sucked into the dust pack other than the dust pack, and the sensor that damages the motor due to the suction, and the filter hole is clogged. In addition to the technical improvement effect, the upper surface of the hair shaping body is formed with a concave to make it easy to put a normal eraser in addition to the technical improvement effect such that chalk powder does not move from the dust pack to the suction fan side. It is a useful invention that has a noise-free and vibration-free effect by adopting a configuration that meets the demands of the era of stationery, which is particularly advanced.

The dust-box 2 which makes the space part 2 'inside is provided with the opening part formed in one side of the rectangular main body 1 so that insertion is possible.

The upper surface portion 1a of the main body 1 forms the stepped portion 1b on both sides in the longitudinal direction, and the center portion thereof is concave.

The suction hole 5 is formed in the biased one side of this upper surface part 1a, and the suction hole 5 is formed so that the brush 4 which sent this suction hole 5 may protrude from the surface of the upper surface part 1a. It is fixed by screw fixing means at the bottom of both sides.

Reference numeral 6 denotes a main switch.

2 is a cross-sectional view showing the configuration of the motor M and the fan 8 and the configuration of the dust pack 7.

The installation structure of the fan 8 which uses the motor M as a drive source, and employ | adopts the dust fan 7 which collects dust is not so different from the conventional thing.

That is, as shown in Figure 5 of the accompanying drawings, the dust is stored by using the dust pack (7) attached to the inlet portion (7 ') of the square to be connected to the connector 10 of the bottom of the brush (4) The attempted configuration is the same as the conventional one.

Although not shown, the present invention prevents the dust pack 7 from being directed toward the motor M by using a circular clearance inserted into the filter hole.

The filter hole is formed by assembling the upper body and the lower body, and is assembled in such a manner that a cylindrical circular clearance is fitted into the filter hole.

In other words, a circular groove having a predetermined depth is formed along the outer periphery of the cylindrical fluid body, and the cylindrical inner portion is formed with a plurality of diaphragms, so that the upper and lower jaws are caught and fitted to the circular groove. It is.

4 and 5 show the fixed state of the brush 4 employed in the present invention.

The bolt holes 4a are formed at both sides of the body 4 'and fixed to the upper surface from the bottom surface with the ordinary bolt B. FIG.

It is fixed to the upper surface portion 1a of the main body 1.

In the vicinity of the bottom where the brush 4 is provided, the above-described connector 10 is formed to protrude toward the bottom integrally with the upper surface portion 1a. Various configurations are not so different from those proposed by the applicant of the present application, but in the present invention, the operation of the motor (M) and the fan is started by adopting a sensor by the light emitting diode instead of the configuration to be started by a push switch. It is to be.

This will be described in more detail.

In FIG. 1, reference numeral 11 denotes a light emitter and 12 denotes a light receiver. A sensor hole 1 'is formed in each end 1b of the main body 1 so that the light emitting body 11 and the light receiving body 12 can be operated.

This sensor hole 1 'is formed of a very small hole, and care should be taken in selecting its position so that light can be received by the light receiving body 12 of the other linear step 1b on which the light emitting body 11 is located. .

1 is a perspective view of the present invention

2 is a plan cross-sectional view of the present invention.

Figure 3 is a partially cutaway longitudinal cross-sectional view illustrating the use of the present invention

Figure 4 is an enlarged perspective view of the main portion of the present invention

5 is an enlarged cross-sectional view of the main part of the present invention.

Claims

The suction hole 5 is drilled long in the upper surface portion 1a of the main body 1, and both longitudinal sides of the upper surface portion 1a are formed as the stepped portions 1a and 1b, and one side thereof is formed as the inclined portion 1d. And a motor (4), a suction fan (8) and a dust container (2) installed therein, and a brush (4) implanted in the body (4 ') fixed through the suction hole (5) and fixed at its bottom; The main body 1 is divided into upper and lower bodies and assembled, and the connector 10 protruded to the bottom along the edge of the suction hole 5 of the upper surface portion 1a, and the dust pack fitted to the connector 10. In the blackboard eraser hairs comprising the inlet portion 7 'of (7) and the exhaust hole 11 and the recessed handle 12 formed on one side of the bottom and side of the main body 1, A rectifier circuit A consisting of resistors R1, R2 and capacitor C1, and an infrared sensor of light emitting diodes D2 and light receiving diodes D3 are connected in series to the rectifier circuit A. Blackboard eraser hair, characterized in that the terminal via the triac (T) of the coupler (C1) consisting of the main body 1 and the CDS element and one terminal of the rated voltage connected to the motor (M)