JPS5951870A - Apparatus for measuring swing force of athletic tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for measuring the swing strength of athletic equipment, and in particular, a) a baseball bat, a tennis racket, or the like, which is used for swinging.

Traditionally, baseball has been practiced by practicing swinging.

When making a practice swing 1], you swing with a lot of force, but at this time, a device is used to measure the force that is applied to the no. In the past, there was no way to prepare for this type of baseball, so the only way to know how to do it was by hitting the Sun J bag with a ball or actually hitting the pole. Since the ball hits the same position on the bat, the ball will not fly the same way unless it happens, so even if you check the condition of the hole in which it flies, it cannot be used as a cheater when measuring the strength of the swing.

This invention shows that if you swing a baseball bat, you can
The purpose of the present invention is to provide a bat in which a measuring device incorporated in the bat can automatically operate to measure and display the strength of the swing.

Embodiments of the invention will be explained with reference to the drawings. −
Bano) - There is a strength measuring meter 5 on the end 3 end surface 4 of the grip 2 of the main body 1, and a hokun 7 that returns the phase opening 6 to zero point.
There is.

Inside the grip end 3 is an indicator meter-flock 8.

Inside the grip 2 is a cylinder 9, in which a rod 1 supported by a spring 10 and a weight 12 secured to a flanone 13 at the tip thereof.

The other end of the rod 11 is a rack 14, and the pinion 1
It meshes with 5. Half of the pinion 15 is a bevel gear, and the indicator meter block 8 is operated from the shaft 16 of the bevel gear 17 that meshes with this.

When you swing with the grip 2 of the rose I-1 configured as described above, a centrifugal force acts on the bat 1, so the spring 12 inside the bat 1 presses the spring 10 in the direction of the arrow 18. move while Since the amount of movement at this time is proportional to the strength of the swing, this amount of movement is converted from the linear movement of the rack 14 to the rotational movement of the pinion, and this is displayed on the indicator block 8 via the bevel gear 16 and shaft 17. When the swing is finished, the rod 11 returns to its original position due to the force of the spring 10. Since the return speed at this time is often rapid, it is desirable to attach a shock absorption device.

The driving section of the indicator meter block 8 returns the pointer 6 to its original position leaving it at a position indicating the strength of the swing.

To return the pointer 6 to its original position, press the return button and the force of the built-in spring will return it to its original position.

In the next embodiment of the present invention, as shown in FIG. 4, one end 2o of a ribbon-like or linear member 19 is fixed to
2 is wound around the shaft 23. A coiled spring 24 is attached to the shaft 23 to keep the member 19 under tension at all times. There is a bevel gear 25 on the shaft 23 and the meter block 2
It meshes with the bevel gear 27 connected to the drive section 6, and as in the previous embodiment, the amount of movement of the rod 21 can be displayed on the indicator block 26.

In an eighth embodiment of the present invention, as shown in FIG.
The movement amount of 4130 is directly transmitted to the drive section 32 of the meter block 31 by combining this and the female screw portion 29 that is screwed together.

This invention includes a weight that moves by centrifugal force inside a baseball bat, and an indicator block that detects, measures, and displays the amount of movement of this weight, attached to the end of the grip, and swings the bat. When activated, the swing strength of the baseball bat can be displayed on the pointer of the swing strength indicator. In another sense, swing strength refers to the turning speed of the bat, and it has the advantage that an approximate value can be easily obtained without using expensive measuring equipment such as the ``Speed Gano'' that measures the speed of baseball balls.

In the example, a baseball bat will be explained, but it will also be explained about a racket for tennis, badminton, golf club, etc.
It can be applied to all other exercise equipment used by swinging.

In addition, not only push springs but also tension springs can be used for springs, and the amount of movement of the weight can be measured not only mechanically, but also by a combination of oil pressure and its meter, or electrically, such as with magnets or electric capacitance. can be made more precise.

In this embodiment, a dial A-le was used as the intensity measuring meter, but it goes without saying that a technical type indicating method may also be used.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention. Figure 1 is a side view of a baseball bat, Figure 2 is an enlarged plan view of the end face of the grip, and Figure 3 is an explanatory diagram showing the operating mode of the Suriunog strength measuring device. FIG. 4 is an explanatory diagram showing the operating mode of another embodiment, a partially longitudinal side view; FIG. 5 is an explanatory diagram showing the operating mode of the eighth embodiment, partially longitudinally sectioned. FIG. ) no ro ′＞2 river meeting 14 years old S figure

Claims (1)

[Claims] 1.Insert a weight that presses the turret into the main body and moves it by centrifugal force, so that the amount of movement of the weight is detected and displayed on the pointer of 12C Greenopue71~. Swing strength measurement device for exercise equipment characterized by: