SERVE HEIGHT EVALUATION DEVICE - SUGIYAMA TOSHIMITSU

Title:

SERVE HEIGHT EVALUATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/261836

Kind Code:

A1

Abstract:

A serve height evaluation device (1) has a support body (3) that is supported by a stand (2), and a pair of sighting parts (4) that extend toward both sides from the support body (3), wherein the pair of sighting parts (4) each have a pair of reference lines (5, 6) that are arranged in a parallel manner at a prescribed interval. The sighting parts (4) are parallel arrangements of pairs of transparent plates (41), and the reference lines (5, 6) that are displayed in the middle thereof are different colors. The sighting parts (4) can be retained in a prescribed evaluation position in which both end sides of each are further to the front than the support body (3) side. At least one of the pair of the sighting parts (4) can rotate with regard to the other.

Inventors:

SUGIYAMA TOSHIMITSU (JP)

Application Number:

PCT/JP2020/020633

Publication Date:

December 30, 2020

Filing Date:

May 25, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUGIYAMA TOSHIMITSU (JP)

International Classes:

A63B71/06; A63B67/18

Foreign References:

JPS5037679U	1975-04-19
US5011143A	1991-04-30

Other References:

YOUTUBE, 8 June 2019 (2019-06-08), Retrieved from the Internet [retrieved on 20200625]
THE HEIGHT OF BADMINTON SERVICE, ABOVE THE WAIST ? TO 115 CM, P_PRINCE BLOG, 16 March 2019 (2019-03-16), Retrieved from the Internet [retrieved on 20200625]