| 摘要 |
#CMT# #/CMT# The flipper has wings (20) extending from a front part of a foot pocket (10). A spring (30) is arranged in an appropriate position on the wings. A support provided with the spring permits the wings to form angle against water to reach a propulsion effect, when a swimmer strikes the water for being propelled towards front. The spring provides extensibility that permits the wings to form angle, which does not resist water during reestablishment movement of the flipper. #CMT#USE : #/CMT# Swimming flipper for use by a swimmer during swimming. #CMT#ADVANTAGE : #/CMT# The spring provides extensibility that permits the wings to form angle, which does not resist water during reestablishment movement of the flipper, thus permitting to preserve the energy in an efficient manner and permitting the swimmer to come back to starting place in a rapid manner. The flipper permits the swimmer to preserve his physical shape and to increase the energy while reducing the appearance of cramps at the foot, if there is a need to accelerate the alternate beat. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic perspective view of a swimming flipper. 10 : Foot pocket 20 : Wings 21 : Body 30 : Spring. |
