BOW CAPABLE OF STRONGLY SHOOTING ARROW WITH LESS FORCE

WIPO Patent Application WO/2020/055052

A1

A bow capable of strongly shooting an arrow with less force according to the present invention comprises: a handle having a grip portion at the center thereof; a pair of wing parts coupled to both ends of the handle; a bowstring formed between the pair of wing parts and pulled for shooting an arrow; and an arrow strength increasing part formed between one end of the handle and each wing part coupled to the handle, and coupled to each of both ends of the handle, wherein the front end of each wing part is coupled to one end of the handle; one end of the arrow strength increasing part is coupled to a part spaced rearward from the front end of each wing part coupled to the handle; the arrow strength increasing part includes a hydraulic cylinder into which oil is introduced, and a piston rod having one end coupled to the hydraulic cylinder and extending out of the hydraulic cylinder; oil injection means for injecting oil into the hydraulic cylinder is provided so that oil is injected into each hydraulic cylinder by means of the oil injection means in a let off state before pulling the bowstring and shooting the arrow; and as the oil is injected into the hydraulic cylinder, the piston rod is withdrawn from the hydraulic cylinder so that each wing part bends further and shoots the arrow with greater strength.

YI CHANG HO (KR)

PCT/KR2019/011597

March 19, 2020

September 08, 2019

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YI CHANG HO (KR)

F41B5/10; F41B5/14

WO2018012982A1

2018-01-18

KR20170088485A	2017-08-02
KR100664420B1	2007-01-04
US20170003095A1	2017-01-05
US20110120436A1	2011-05-26

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