Title:
SWING PRACTICE DEVICE FOR EMITTING LIGHT AT IMPACT THROUGH SELF-GENERATION
Document Type and Number:
WIPO Patent Application WO/2020/027435
Kind Code:
A1
Abstract:
The present invention relates to a swing practice device and, more specifically, to a swing practice device for emitting light at impact through self-generation, the device enabling an impact moment to be checked with the naked eyes without needing a battery by emitting light at an impact time point through self-generation during swinging by using a golf club, a baseball bat, and the like. The swing practice device for emitting light at impact through self-generation, according to the present invention, comprises: a power generation magnet provided to a shaft so as to slide in the longitudinal direction of the shaft during swinging; a power generation coil provided on the circumference of a section in which the power generation magnet moves; a light-emitting lamp connected to the power generation coil so as to be turned on by the movement of the power generation magnet; and a magnet control means for preventing the movement of the power generation magnet at a set swing speed or lower. The swing practice device for emitting light at impact through self-generation, according to the present invention, turns on the light-emitting lamp through self-generation while the power generation magnet, which moves by a centrifugal force during swinging, passes through the power generation coil, thereby enabling an impact position to be accurately checked with the naked eyes.
Inventors:
KIM YOUNGDEUK (KR)
Application Number:
PCT/KR2019/007493
Publication Date:
February 06, 2020
Filing Date:
June 21, 2019
Export Citation:
Assignee:
KIM YOUNGDEUK (KR)
International Classes:
A63B69/36; A63B53/10
Foreign References:
| US20080305895A1 | 2008-12-11 | |||
| KR20130070709A | 2013-06-28 | |||
| KR101513473B1 | 2015-04-20 | |||
| JP2016112395A | 2016-06-23 | |||
| KR101762793B1 | 2017-07-28 |
Download PDF: