PROBLEM TO BE SOLVED: To provide a training tool of forearm muscle and grip strength, the tool being suitable for training the forearm muscle and the grip strength by using a torsion coil spring.SOLUTION: A training tool of forearm muscle and grip strength includes: a pair of grip parts 10(L, R) gripped by left and right hands and capable of being relatively turned in the twisting direction a first torsion coil spring part 21 arranged between grip parts 10 and being the winding direction becoming the resistance to one twisting direction R concerning the twisting direction of the pair of grip parts 10 a second torsion coil spring part 22 becoming the resistance to the other twisting direction L and a stopper 30 arranged between the pair of grip parts 10, permitting the relative twisting operation between the pair of grip parts 10 turning in one twisting direction R and the first torsion coil spring part 21 and regulating the relative twisting operation with the second torsion coil spring part 22, and permitting the relative twisting operation between the pair of grip parts 10 turning in the other twisting direction L and the second torsion coil spring part 22 and regulating the relative twisting operation with the first torsion coil spring part 21, concerning the twisting direction of the pair of grip parts 10.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2018,JPO&INPIT【課題】ねじりコイルばねを用いることで前腕筋及び握力のトレーニングに適した前腕筋及び握力トレーニング具を提供する。【解決手段】左右の手で握られ、相対的にねじり方向へ回動可能な一対の握り部10(L,R)と、握り部10の間に配置され、一対の握り部10の捩り方向に関し、一方の捩り方向Rに対して抵抗となる巻き方向の第1ねじりコイルばね部21と、他方の捩り方向Lに対して抵抗となる第2ねじりコイルばね部22と、一対の握り部10の間に配置され、一対の握り部10の捩り方向に関し、一方の捩り方向Rに回動する一対の握り部10と第1ねじりコイルばね部21との相対的ねじり動作を許しかつ第2ねじりコイルばね部22との相対的ねじり動作を規制し、他方の捩り方向Lに回動する一対の握り部10と第2ねじりコイルばね部22との相対的ねじり動作を許しかつ第1ねじりコイルばね部21との相対的ねじり動作を規制するストッパ30とを備えている。【選択図】図5
