JPS6252836B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a timing device, and more particularly to a music rhythm guidance device for displaying musical rhythms.

Various types of metronomes have long been used to teach players a sense of timing, and such devices tend to force beginners to play in a more exaggerated or mechanized manner. That is, although beginners are helped by following the audible beat of a metronome, it has been difficult as a result to acquire the natural sense of rhythm necessary to play successfully.

Such devices are disclosed in U.S. Patent No. 1930997 and No.
1261382. The devices disclosed in these documents have a circular desk concentrically fixed to a rotatable shaft and having an indicator or display disposed concentrically on the shaft. However, because the desk is concentric with the axis, such devices do not provide an effective visual representation of the rhythm, and therefore, like other forms of metronome, music is learned through an audible representation. It was all I could do.

Accordingly, it is an object of the present invention to provide a musical rhythm guidance device capable of displaying rhythm by visual means that can convey a sense of timing more effectively than conventional metronomes that rely on audible output. It is. The eccentric desk used in the device of this invention can be compared to a conductor's baton used to dictate the timing of music. A music teacher compares the action of a desk to the action of a ring around the waist. That is, this action is visual and rhythmic, and it interests and excites the audience. This can be compared to a spectator watching two people spinning a rope while the other person flies on the rope. This other person has to watch the movement of the loop and begins to fly into the rhythm of the rotation before going under the loop. This eccentric desk stimulates one to relax and adopt natural rhythmic movements, so that the forward movement, or propagation, of the music is more easily followed than if tempo were given only to the notes. As such, this desk is like a rotating wheel or loop. Musicality can sometimes be confused by misreading the rotating device, but
Timing can be displayed with sound if necessary.

The music rhythm guidance device according to the present invention has a rotatable shaft and a pair of diametrically opposed peripheral portions that are both rotatably and eccentrically fixed to the shaft, separated by maximum and minimum distances from the rotation axis. It has a rotating disk and drive means for rotating said shaft at a constant speed and providing a rhythmic and visual indication of the tempo on the peripheral portion of the disk.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A music rhythm guiding device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

The musical rhythm guidance device designated by the reference numeral 10 has a housing 14 which is connected to a base 15.
, side posts 16 and 17, and these posts 1
6 and 17, and a peripheral wall 18 forming an upper closed body 19 of the housing 14. As shown in FIG. 3, a rear panel 20 allows the housing 14 to be closed at the rear, and the housing 14 further includes a fixed front panel 21. As shown in FIG.

A rotary shaft 24 is inserted through the front panel 21 . A desk 26 having a diameter of 8 inches (20.32 cm) or more is fixed to the outer end of the shaft 24. This desk 26 is rotatably supported adjacent to and parallel to the outer surface of the front panel 21. This desk 26 is provided offset from the horizontally provided shaft 24, and its center 27 is located at the shaft 24, as shown in FIG.
is spaced from the long axis of Thus, desk 26
has a peripheral edge 28 that is offset from the rotation center axis of the shaft 24. As shown in FIG. 3, contained within the housing 14 are means 30 for rotating the shaft 24 and thus the desk 26 a predetermined number of times per second. This driving means 30 includes the pair of ports 16,
It has a variable speed electric motor 32 mounted on a crossbar 33 supported between 17. This motor 32 drives the shaft 24 via a speed reduction mechanism (not shown). The drive means 30 extends from the housing 14 and is connected to the motor 3.
It has a suitable circuit with a wire 35 for connecting 2 to a power source. Connected to this circuit is a simple on-off switch 36 whose actuating lever 37 is mounted on post 16 for operation from outside housing 14. A rheostat 39 having an externally operable knob 40 is mounted on the post 17. Furthermore, a diode 42 and a transformer 43 are provided in the circuit of the drive means 30. With such a mechanism, the desk 26 is moved at an appropriate constant speed selected by the user during actual use.
can be rotated.

This guidance device 10 is equipped with a sound mechanism consisting of a bell 50. This bell 50 is attached to the panel 21 by a bracket 51. This bracket 51 is attached to the panel 21 with a clamp screw 52 functioning as a pivot means,
As a result, the bell 50 can be moved in an arc toward and away from the peripheral edge 28 of the desk 26, and can be locked in place. Fitted into the desk 26 is a striker 54 extending on an imaginary diameter across the periphery 28 and located at a maximum distance from the center of the shaft 24 . This slightly flexible striker 54 extends beyond the periphery 28 to contact the bell 50 during rotation of the desk 26 unless the bell 50 is set apart. Thus, the bell 50 is struck by the striker 54 each time the desk 26 rotates once.

Guidance device 10 to visually give a tempo
To operate the bell 50, the position of the bell 50 is adjusted to account for the trajectory of the striker 54. The wire 35 is inserted into a wall plug and the switch 26 is closed to start the motor 32 and rotate the desk 26. Rheostat 36 is then adjusted by knob 40 to set the speed of rotation of desk 26 to match the tempo of the particular piece of music being used.

The guidance device 10 does not need to be directly installed where the user can see it. Preferably, the guiding device 10 is placed on or to the side of the line so that the performer can see the guiding device 10 indirectly without being obstructed. In this case, the player can concentrate on the musical notes and, in the case of piano playing, on the keyboard. However, the player realizes that the desk 26 signals the necessary tempo and subconsciously adopts the rhythm necessary to play the piece in front of the performer.

As mentioned above, the striker 54 extends across the peripheral edge 28 at a point at the peripheral edge 28 that is a maximum distance from the longitudinal axis of the shaft 24.
6. This peripheral edge 28 is the shaft 2
4 and thus an imaginary point on the diametrically opposed peripheral edge 28 of the striker 54 is a minimum distance from the center of the shaft 24. This offset periphery 28 therefore has two points on the maximum and minimum diameters, which when the desk 26 is rotated, are located in the radial direction shown between the solid line and the dashed line in FIG. gives a deviation of Such deviations are easily visible to the performer, although the guiding device can be observed out of the corner of the eye while reading the notes. For example, radial indicators on the periphery of concentric desks or spots formed on other concentric desk surfaces create concentric trajectories when these desks are rotated, resulting in concentrically moving indicators. The performer will likely see blurred lines drawn by the sections, failing to provide the necessary visual representation of the rhythm.

In normal use, the guiding device 10 preferably provides tempo both audibly and visually for playing an instrument. The clamp screw 52 is loosened to position the bell 50 on the movement trajectory of the striker 54, and the screw 52 is tightened again. This result bell 5
0, 50 bells are struck for every revolution of the desk. This bell 50 accentuates the main pulse vibration or each beat of the song being played,
This is especially useful for beginners.

As described above, the music rhythm guidance device of the present invention can effectively teach essential correct music rhythms. This method is easy for people to understand as the eccentric desk makes the timing visually obvious.

[Brief explanation of the drawing]

FIG. 1 is a front view of a music rhythm guidance device according to an embodiment of the present invention, FIG. 2 is a side view of the same device, and FIG. 3 is a rear view with a part of the rear panel cut away. DESCRIPTION OF SYMBOLS 10... Music rhythm guide device, 14... Housing, 21... Front panel, 24... Rotating shaft, 26... Desk, 30... Drive means, 32...
...Electric motor, 36...Switch, 50...Bell, 54...Striker.

Claims (1)

[Scope of Claims] 1. A rotatably provided shaft, and a pair of diametrically opposed shafts which are rotatably and eccentrically fixed to the shaft, separated by a maximum distance and a minimum distance from the rotation axis of the shaft. A rotary disk having a peripheral edge portion, a striker supported by the rotary disk, an acoustic mechanism that generates a sound when the striker is struck each time the disk rotates, and a drive means that rotates the shaft at a constant speed, A music rhythm guidance device characterized in that a peripheral portion of the desk displays a tempo rhythm and a visual display. 2. The music rhythm guiding device according to claim 1, further comprising a control mechanism that selectively changes the rotational speed of the desk by regulating the driving means. 3 a housing having a front surface; a shaft rotatably supported in the housing and having an outer end extending beyond the front surface; and a shaft eccentrically fixed to the outer end of the shaft; a rotating desk having a pair of diametrically opposed peripheral portions separated by a maximum distance and a minimum distance from the long sleeve;
A drive means for rotating the shaft and the desk at a constant speed and providing a tempo rhythm and visual display by rotating a peripheral portion of the desk, and a control for regulating the drive means so as to selectively change the rotational speed of the desk. A mechanism, a strutker provided on the desk, and a bell supported by the housing so as to be positioned on the movement trajectory of the strutker and struck by the strutker every time the desk rotates. Music rhythm guidance device.