JPS6339723Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of use of the invention) This invention relates to a drawing compass, and more specifically to a compass whose drawing means moves by turning the operating knob.

(Prior Art) Conventionally, as a drawing aid for young children, there is a paper pattern that has the outline of a flower, animal, etc., and by moving a pen along the outline, a predetermined picture can be drawn. . However, holding the pattern still and moving the pen along the outline are difficult tasks for young children.

(Technical Problems of the Invention) The purpose of this invention is to solve the above-mentioned drawbacks, and in particular to propose a drawing compass that can draw beautiful pictures with a simple operation of just turning a knob.

(Technical Means) That is, the drawing compass according to this invention has a leg edge hanging down from the end of the base plate, a rotary operation knob is formed on the base plate, and a rotation axis of the rotary operation knob is laterally attached. A protruding overhang member is fixed, a drawing means is slidably attached to the overhang member, and a guide groove of an appropriately shaped shape for guiding the pen body is formed around the rotation axis of the rotation operation knob on the base plate. It is characterized by what it did.

(Example) An example of implementing this invention will be described below with reference to the drawings.

In the figure, symbol A indicates a drawing compass.

This compass A has a main body 3 formed by forming leg edges 2 hanging down from the peripheral end of a disc-shaped substrate 1, and a rotary operation knob 4 formed in the center of the substrate 1. The rotation axis 5 is on the back side of
A projecting member 6 projecting laterally is fixed to the projecting member 6, a sliding groove 7 is formed in the projecting member 6, a drawing means 8 is slidably attached to the sliding groove 7, and the disk-shaped A flower-shaped guide groove 9 for guiding the drawing means 8 is formed on the back surface of the substrate 1 around the rotation axis of the rotation operation knob 4.

The drawing means 8 is provided inside the holder 10,
The upper end of the holder 10 is slidably provided in the sliding groove 7 of the overhanging member 6 so as not to fall off. In this case, the holder 10 is cylindrical, and the diameter of the holder 10 is set to the sliding groove 7.
The head 11 is made slightly smaller than the sliding groove 7, and a head 11 larger than the sliding groove 7 is provided at the upper end to prevent falling, and the head 11 is engaged with a flower-shaped guide groove 9 formed on the back surface of the substrate 1. This can be achieved by: Since the head 11 is supported on the back surface of the substrate 1, the holder 10 does not slip out from above. Further, the drawing means 8 may be a ballpoint pen, a felt-tip pen, a pencil, etc., or may be a magnet as described later. In any case, the lower end of the drawing means 8 should protrude below the lower end of the leg edge 2. It is configured.

With the above configuration, when the operating knob 4 of the compass A is turned, the rotating shaft 5 rotates, the projecting member 6 rotates accordingly, and the holder 10 also moves. At this time,
Since the head 11 of the holder 10 is engaged with the guide groove 9 of the substrate 1, the holder 10 driven by the overhanging member 6 slides along the guide groove 9. The drawing means 8 also moves accordingly.

Therefore, place a piece of paper under the compass A,
When the operating knob 4 is turned, the drawing means 8 moves along the flower-shaped guide groove 9, so that a flower-shaped pattern is drawn on the paper.

A magnetic board toy 12 shown in FIG. 4 may be used instead of paper. Such a magnetic board toy 12 has a large number of cores formed on the back side of a translucent magnetic board 13, and these cores are filled with a magnetically attracting material.By bringing the magnet into contact with the surface of the board 12, the above-mentioned The magnetically attracting substance is floated on the back side of the board so that it can be recognized from the outside, and on the contrary, by sliding the magnetic member 14 from side to side along the backside of the core, the magnetically attracting substance is attracted back to its original position. This is to make it disappear from the outside. When playing with such a magnetic board 12, a magnet may be used as the drawing means 8 of the compass A. By placing the compass A on the magnetic board 13 and turning the knob 4 in the manner described above, a similar flower-shaped pattern can be obtained on the magnetic board 13.

Note that the shape of the guide groove 9 may be a pattern such as an animal, a person, an abstract line, a dot, or the like. Further, if the holder 10 is raised by a guide member (not shown) during rotation so that the drawing means 8 does not come into contact with paper or the like, patterns such as dotted lines can also be drawn.

Further, the projecting member does not necessarily have to be formed into an arm shape as in the above illustrated example, and may be configured to project into a disk shape.

(Effects of the invention) As described in detail above, according to the drawing compass of this invention, even young children can easily draw pictures by simply turning the operating knob.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the drawing compass according to this invention, FIG. 2 is a perspective view of the compass in an upside down state, FIG. 3 is a bottom view of the compass, and FIG. 4 is a sectional view of the main part thereof. FIG. 5 is a perspective view showing the state in which the magnetic board is used. Code A...Drawing compass, 1...Board, 2...Leg edge, 3...Main body, 4...Operation knob, 5...Rotation axis, 6
... overhanging member, 7... sliding groove, 8... drawing means, 9... guide groove, 10... holder, 12... magnetic board toy.

Claims (1)

[Scope of claims for utility model registration] A drawing compass characterized by meeting the following requirements. (a) A leg edge is formed to hang down from the end of the board, and a rotation operation knob is formed on the board. (b) A laterally protruding projecting member is fixed to the rotating shaft of the rotation operation knob, and the drawing means is slidably attached to the projecting member. (c) An appropriately shaped guide groove for guiding the drawing means is formed around the rotation axis of the rotation operation knob on the substrate.