JP3141330B2 - Exercise display teaching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the motion of an object (free fall motion, parabolic motion,
The present invention relates to a teaching tool for explaining a circular motion, a simple vibration, a longitudinal wave, and a transverse wave) in a slow display.

Conventionally, after shooting the actual exercise with a TV camera,
A method of displaying on a television screen by playing or stopping a video in slow motion was implemented. However, this conventional method has a drawback that it cannot be easily implemented in a normal classroom and that there is almost no relationship between a television screen and a graph for understanding the motion of an object.

 The present invention has been made in view of the above points.

Object of the Invention The purpose of the present invention is to allow a learner to have sufficient time to think while watching various exercises.

This device is suitable for this purpose because the motion of the object can be stopped at any time.

The feature of this invention is that it can be easily handled in ordinary classrooms, and the graph used to understand the movement of various objects is used in the device.
It has a great educational effect because it helps to understand exercise. This device has the effect that learners can use it for personal use if it is simple and small.

This device has the effect that it can be used as a device for OHP if it is made by distinguishing the transparency of the cylindrical collar from the other upper and lower plates.

According to the invention, two plates, in which a first line and a second line indicating a motion path of an object are respectively hollowed out, and the two plates are vertically stacked, and the first line and the second line are overlapped. In the common hollow part that can be made at the intersection of the lines,
A cylinder having a length greater than the sum of the thicknesses of the respective plates is loosely fitted and penetrated, and both ends of the cylinder are provided with flanges larger than the common hollow, so that the two plates can be moved relative to each other. , The collar is a device for displaying the movement.

According to the relative movement of the two plates stacked one above the other, the collar of the cylinder loosely fitted at the intersection of the first line and the second line hollowed out in each plate, The movement is indicated by receiving the force from the edges of the first line and the second line.

In the following, according to the type of motion to be displayed, the hollow curves of the upper plate and the lower plate are different, but the action of displaying the slow speed motion is the same, so the embodiment of the free fall motion will be described in detail, and other motions will be described. In the embodiment, only the drawings that can be understood by using the numbers used in the embodiment of the dropping motion as they are in the corresponding portions will be described.

An embodiment of the invention will be described with reference to FIGS. Below the upper plate 3 provided with the hollow 2 of the upper plate of the path line 1 of the free fall motion, which is the first line, the second line, the relationship line 6 between the motion and the time,
The lower plate 8 provided with the hollow 7 is overlapped, and the flanged cylinder 4 is loosely fitted in a common hollow portion formed at the intersection of the hollow 2 and the hollow 7 of each plate.

As shown in FIG. 2, when the upper plate 3 is fixed and the lower plate 8 is moved to the rightmost position, the cylindrical flange 5 (moving body) 5 is fixed for a certain period of time from the beginning of the center plate 2 of the upper plate. It will be at position 15 on the back collar. Since the brim (moving body) 5 displays a moving object, the brim position 15 after a certain period of time from the beginning becomes the starting position of the falling movement. The position of the collar after a certain time from the beginning
From 15, when the position 18 of the first lower plate is horizontally moved to the left at a constant speed in the direction of the arrow 9, the cylindrical collar 5 (moving body) is moved to the upper plate 2 and the lower plate 7. It receives a force from the edge of and moves at a constant acceleration (fall). FIG. 2 shows the lower plate position 18, which starts moving at intervals at that time, the lower plate position 28 after a certain time from the lower plate position 28, and the relative position of the lower plate position 38 after a certain time from the 28, and further fixed upper plate 3. The lower plate 8 is the lower plate position 18 at the beginning,
When moving leftward in the order of the lower plate position 28 after a certain time from 18 and the lower plate position 38 after a certain time from 28, the brim (moving body) 5 becomes, for example, 4 cm, 9 cm, 16 cm from the initial position. The first brim (moving body) on the free fall motion path curve (A curve) 1
Positions 15 and 15 of the collar (moving body) after a certain time from position 2
Follow the position 35 of the collar (moving body) after a certain time from 5, 25.

FIG. 4a shows the lower plate 8 provided with a parabolic hollow 7, and FIG. 4b shows the upper plate 1 provided with a vertical hollow 2.
These are the lower plate 8 of the free fall motion in FIG.
And the upper plate 3 are used as a hollow curve, but if the upper plate 3 and the lower plate 8 are exchanged, the parabolic motion can be displayed.

FIG. 9a shows the lower plate 8 with the hollow 7 of the sinusoidal curve, and FIG. 9b shows the upper plate 1 with the vertical hollow 2. FIG. 5 is an explanatory diagram using these for the simple vibration display.

FIG. 10a shows the lower plate 8 having the hollow 7 formed in the cycloid curve, and FIG. 10b shows the upper plate 1 having the circular hollow 2 formed therein. FIG. 6 is an explanatory diagram using these for circular motion display.

FIG. 11a shows the lower plate 8 with a sinusoidal cutout 7, and FIG. 11b shows the upper plate 1 with a number of parallel straight cutouts 2. FIG. FIG. 7 is an explanatory diagram in which these are used for shear wave display.

FIG. 12a shows a lower plate 8 having a number of sinusoidal hollows 7 formed therein.
FIG. 12b shows the upper plate 1 provided with the straight hollow 2. FIG. 8 is an explanatory diagram using these for longitudinal wave display.

The relative movement between the lower plate 8 and the upper plate 3 is not limited to a straight line, but one of them can be rotated, or a more complicated movement can be displayed by combining various curves.

Advantageous Effects of the Invention The present invention is intended to display a movement slowly, and is not only a display but also a teaching tool device in which a small object moves, so that it can be identified by touching a moving object, so that it can be used for education for a visually impaired person. There is.

Since the present invention is a teaching device in which a movement is slowly displayed and a small object actually moves, as a display capable of stereoscopic viewing, there is an effect of allowing a learner to accurately understand the movement.

According to the present invention, the movement is displayed at a slow speed, and there is an effect that the movement can be stopped anywhere in the middle of the movement. Therefore, unlike the case where the motion is digitally displayed by a cathode ray tube or a liquid crystal, there is an effect that the motion can be continuously displayed in an analog manner.

Since the present invention is lightweight and thin, it has an effect suitable for a learner's personal use.

Since the present invention is plate-shaped and thin, it uses an overhead projector (OH
There is an effect that can be enlarged and projected using P).

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention. FIG. 2 is a diagram in which collars are dropped at equal intervals. FIG. 3 is an enlarged view of an upper plate, a lower plate, and a cylinder with a rim. FIG. 4a is an explanatory diagram of an upper plate provided with a hollow portion of an A-curve indicating a path of a parabolic motion, and FIG. Explanatory drawing of the lower board which provided the hollow of the B curve which shows the relationship between the vertical position of an object and time. FIG. 5 is a diagram in which a single vibration of a collar is superimposed at equal time intervals. FIG. 6 is a diagram in which a circular motion of the collar is superimposed at equal time intervals. FIG. 7 is a diagram in which transverse waves of the collar are superimposed at equal time intervals. Fig. 9b is a view in which longitudinal waves of a brim are arranged at equal time intervals. Fig. 9b is an explanatory view of an upper plate provided with a hollow portion of an A curve showing a path of a simple vibration. Fig. 9a is a vertical position of the simple vibration object. Explanatory drawing of the lower plate which provided the hollow of the B curve which shows the relationship between time and time. FIG. 10b is an explanatory view of an upper plate provided with a hollow portion of an A curve showing a path of a circular motion, and FIG. 10a is provided with a hollow portion of a B curve showing a relationship between a vertical position of a circular moving object and time. FIG. FIG. 11b is an explanatory view of an upper plate provided with a hollow portion of a curve A showing the motion path of the transverse wave medium, and FIG. 11a is a curve B showing the relationship between the position of the transverse wave medium motion and time. Explanatory drawing of the lower board provided with blanking. Fig. 12b is an explanatory view of an upper plate provided with a hollow portion of an A curve showing a motion path of a longitudinal wave medium, and Fig. 12a is a B curve showing a relationship between the position and time of the motion of the longitudinal wave medium. Explanatory drawing of the lower plate which provided the hollow part. 1 ... path line, 2 ... hollowing out of upper plate, 3 ... upper plate 4 ... cylinder with collar, 5 ... collar (moving body) 6 ... relation line between movement and time 7 ... lower plate Bump, 8 Bottom plate, 9 Movement direction 15 Position of collar (moving body) after a certain time from the beginning. 25 ... The position of the collar (moving body) after a certain time from 15. 35 ... The position of the collar (moving body) after a certain time from 25. 18 ... The position of the lower plate at the beginning. 28 ... The position of the lower plate after a certain time from 18. 38 ... The position of the lower plate after a certain time from 28.

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Claims (1)

(57) [Claims] A first line and a second line each showing a path of a motion of an object are respectively hollowed out; and the two plates are vertically overlapped with each other. A column having a length larger than the sum of the thicknesses of the respective plates is loosely fitted into a common hollow portion formed at the intersection of the two lines, and penetrated therethrough. The exercise display device, characterized in that, with the relative movement of the two plates, the collar's collar displays the exercise.