JPH021300A - Swing body - Google Patents

Abstract

PURPOSE:To inform automatically the set of swings by providing a counter generating the output when receiving an output from a detector responsive to at least a predetermined acceleration to count set values and a pronouncing device for receiving the output from the counter to pronounce an informing sound on sports outfits swung. CONSTITUTION:A desired swing circuit is preset in a down-counter 6 by a preset device 7. By swinging a racket with at least a predetermined acceleration is displaced at least predetermined amount a magnetic body core 3a of a differential transformer so that an output of at least a predetermined level from a converting circuit 4 is generated to generate an output from a clipper circuit 5. This output is counted by a down-counter 6 and the remaining number of swings is indicated by an indicator 10. When the desired number of practice swings are carried out, the content of the down-counter 6 becomes zero so that a circuit 15 for judging zero generates an output to produce an informing sound from an announcing device 16. Thus, when the number of swings reaches a desired one, it is automatically informed, so that the number of swings does not need to be counted and thereby one's mind can be concentrated into the practice swing training.

Description

[Detailed description of the invention] The present invention relates to a swing body.

For example, when practicing swinging a tennis racket or a baseball bat, the person himself/herself counts the number of swings in his/her head. As a result, there were inconveniences such as making mistakes in counting and being unable to concentrate on the practice swing.

Therefore, the present invention provides a swinging body that automatically notifies the user when a racket, bat, etc. has been swung a preset number of times, thereby eliminating counting errors and allowing the user to concentrate on his practice swings.

An embodiment of the present invention will be described below based on the drawings. 1st
In the figure, reference numeral 1 denotes a tennis racket which is an exercise equipment, and a swing counter 2 is embedded in the grip end of the racket to form a swing body. Now, referring to Fig. 2, set the count needle 2.
will be explained in detail.

3 is a differential transformer, 4 is a magnetic core 3 of the differential transformer 3
A conversion circuit 5 converts the displacement position of a into a DC output, and 5 is a clipper circuit that produces an output when the output from the conversion circuit 4 is at a predetermined level or higher (swing acceleration is at a predetermined level or higher).

The differential transformer 3, the conversion circuit 4, and the clipper circuit 5 constitute a detection device. 6 is a down counter driven by the output of the clipper circuit 5; 7 is a presetting device for presetting the number of swings; 8 is a decoder;
9 is a drive circuit, and 10 is a display device. 11 to 13 are resistors, and by selecting these with a switch 14, the level of the clipper circuit 5 is set. 15 is a determination circuit that determines that the down counter 6 has reached 0;
6 is a sounding device.

In the above configuration, a desired swing circuit is preset in the down counter 6 by the presetting device 7. Therefore, by swinging the racket 1 at a predetermined acceleration or more, the magnetic core 38 of the differential transformer is displaced by a predetermined amount or more, an output of a predetermined level or more is generated from the conversion circuit 4, and an output is generated from the clipper circuit 5. This is counted by the down counter 6, and the remaining number of swings is displayed by the display device 23.

By selecting the resistors 11 to 13 using the switch 14 depending on the slowness of the swing, the number of swings can be reliably counted without malfunction.

When the desired number of practice swings have been performed, the content of the down counter 6 becomes 0, an output is generated from the O discrimination circuit 15, and a notification sound is generated from the sound generating device 16.

Therefore, when the user has performed the practice swing a predetermined number of times, the player is notified with a sound, so the user can concentrate on practicing the practice swing without having to count the number of practice swings or look at the display.

Note that the swing count counter is not only attached to a tennis racket as in this example, but can also be applied to any exercise equipment for swinging, such as a Kendo bamboo sword, a baseball bat, a badminton racket, or a table tennis racket.

As described above, according to the present invention, when the number of swings reaches a desired number, it is automatically notified, so there is no need to count the number of swings as in the past, and the user can concentrate on practice swings. , you can practice effectively.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an electric circuit block diagram showing an example of a multiplication hand. 1... Racket 2... Swing counter 3... Differential transformer 4... Conversion circuit 5... Clipper circuit 6... Down counter 16... Sound generating device and above Applicant Sei Co., Ltd. Factory agent Patent attorney Matsu 1) Kazuko Figure 1

Claims (1)

[Claims] A detection device that is sensitive to acceleration above a predetermined value, a counting device that receives the output from this detection device and generates an output when counting a preset value, and generates an alarm sound in response to the output from this counting device. 1. A swinging body, characterized in that a sounding device is provided on an exercise tool that is gripped and swung by hand.