KR20160075440A - Simple Drafter for Whiteboard - Google Patents

Abstract

The present invention relates to a simple drawing instruments for a whiteboard enabling a user to easily draw straight lines, tilted lines, circles, and the like on a normal whiteboard. More specifically, wheels made of soft rubber are mounted in a small body in a tricycle form. The single wheel is mounted in a front part of the small body, and the two wheels are mounted in a rear part of the small body. The three-stage front wheel is capable of turn a direction of the front wheel at an angle of 15 degrees per each stage. Namely, the first stage enables the user to draw a straight line. The second and third stages enable the user to draw circles with different diameters. The simple drawing instrument for a whiteboard enables the user to easily draw by attaching a vertical angle meter to measure an angle and a holder for mounting a marker pen in the body.

Description

{Simple Drafter for Whiteboard}

The present invention relates to a method of drawing a straight line and an angle on an ordinary white board, more specifically, attaching a hard rubber wheel in the form of a tricycle so as to facilitate horizontal and vertical movement on a plastic body of a size capable of being held with one hand , A vertical goniometer is attached to the upper center of the body, and a board marker (a pen used for the whiteboard, hereinafter referred to as 'macapen') is attached to the rear of the body. A straight line is drawn. At this time, if the direction of the body is changed by the angle of the rotation angle meter, an angle of a desired size can be drawn. In addition, there are 1, 2, and 3 steering devices on the front wheel, so that it is possible to draw two straight lines in the first stage and two different diameters in the second stage and the third stage.

The configuration of the present invention is similar to a tricycle for infants. As shown in Fig. 3, one wheel is attached to the front of the body and two wheels are attached to the rear, and a marker (Fig. 2-c) is attached to the center and a macapen holder (Fig. When the macropen holder is inserted into the holder and moved close to the board, a straight line is drawn vertically or horizontally according to the progress direction of the body. When the scale of the rotation goniometer (FIG. 2-c) is set to 0, a horizontal line, . Fig. 5 shows a scale of the goniometer with one graduation set at 30 degrees. 4-e) is attached to the front surface as a vertical goniometer and an L-shaped pointer (Fig. 4-c) is attached to the center of the scale through a fine tube (Fig. 4-h) (Fig. 4-g), the center of gravity of the metal weight is always downward due to gravity, so that the guide (Fig. 4-c) indicates the angle by the inclination of the body. In the present invention, the vertical goniometer (Fig. 4) is only vertically usable.

4) covered with another transparent plastic cover (Fig. 4-a) in the central portion of the cover (Fig. 4) and the central axes thereof are connected in common, the plastic cover serves as a grip when the circle is drawn, Thereby facilitating rotation.

In addition, a spring (Fig. 3-b) was placed inside the macapens holder (Fig. 3-a) so that the macapens could be easily mounted on the body, and the macapens were tightly fitted to the holders. (Fig. 3-e) so that when the body moves, the macapane cortex runs on the board surface while maintaining an appropriate pressure.

The present invention aims at providing a method for drawing a straight line, an angle and a circle on a normal whiteboard in an easy and precise manner, as compared with a method of manually drawing a macapens by hand.

In order to accurately draw a straight line or an angle on a vertically installed whiteboard, a separate drafting device (a protractor, a compass, or the like) is required. However, it is very troublesome for the user to take such a drafting device. Therefore, most of the users have to manually draw the drawings, and therefore, there is a problem in that it is impossible to draw a figure with a low accuracy.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems and to provide a small-sized and easy-to-

By using the present invention, it is expected that a relatively accurate figure can be drawn on a white board without a separate drawing tool, and it is easy to use and easy to carry, which is expected to have a great effect as a training material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a macropen in the present invention. FIG.
2 is a plan view of the present invention.
3 is a bottom view of the present invention.
Figure 4 shows the horizontal goniometer and transparent handle
Figure 5 is a graphical representation of the horizontal goniometer dial

The present invention will now be described in detail with reference to the accompanying drawings.

1 shows a state in which a macropane (a), a vertical angle gauge (c), a transparent cover knob (b) and a direction adjuster (d) are mounted on a body (e) with one front wheel (h) and two rear wheels As a structure, when three wheels are closely attached to the white board and moved forward, the principle of the macacene tip (f) touches the white board to draw the line.

FIG. 2 is a plan view of the present invention. FIG. 2 is a plan view of the present invention. FIG. 2 is a plan view of the present invention. FIG. 2 is a perspective view of a macropen holder (a) (D), a horizontal goniometer (c) for displaying the direction of the body in an angle, and a transparent plastic handle (b) for drawing the circle. The direction controller is adjusted to 1, 2, and 3, and the front wheel changes direction by about 15 degrees. The first stage is a straight line, the second stage is a large circle, and the third stage is a small circle.

Fig. 3 is a bottom view of the present invention.

d is a spring ring, e is a macapilma pressure holding spring, f is a rear wheel axis, g is a rear wheel, h is a vertical gauge, i is a body, j is a direction Regulator, k is the front wheel.

4 is a cross-sectional view of a vertical goniometer of the present invention, wherein a is a transparent plastic knob which is normally connected to the center of the vertical goniometric cover by a rotation axis so as to facilitate rotation of the body when drawing a circle. b is a vertical goniometer cover, c is a goniometer guide, d is a transparent cover rotating shaft, e is a dial gauge dial, f is a connecting rod, g is gravity weight, h is a tubule, i is a rear cover, (Bolt), and k is the gauge fixing screw (nut).

FIG. 5 is a vertical goniometer scale, and the size of one scale is 30 degrees.

Claims (1)

It is equipped with one front wheel and two rear wheels on a small body that can be held with one hand so that straight lines, angles and circles can be easily drawn on a normal whiteboard, and a macropen holder for drawing lines thereon A vertical goniometer and a direction adjusting device for attaching a vertical goniometer and a direction adjusting device to the user to easily draw a figure.

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