Jumping exercise equipment

A jumping exercise equipment comprising:

• a fixed plate (100) consisting of a base of a jumping exercise equipment;
• a stepping plate (200) that moves up and down on the fixed plate (100) and on which a user steps;
• a stepping plate connecting movable member (300) having a first side rotatably connected to the fixed plate (100) and a second side rotatably connected to the stepping plate (200) and that keeps the stepping plate (200) horizontal;
• an elastic portion (400) disposed on the fixed plate (100) and comprising a leaf spring (410) that imparts an elastic force to the stepping plate connecting movable member (300) in accordance with a change in the angle that the stepping plate connecting movable member (300) makes with the fixed plate (100);
• and
• a leaf spring pressing portion (500) coupled to the stepping plate connecting movable member (300) and acting as an action point in contact with a first end of the leaf spring (410),
• wherein the stepping plate (200) comprises:
• a fixed lever (210) to hold the stepping plate (200) from rotating;
• and a stepping plate elastic portion (220) disposed between the stepping plate (200) and the stepping plate connecting movable member (300) and having an elastic force,
• wherein the stepping plate elastic portion (220) comprises a coil spring made of a carbon steel material connected at one end to the stepping plate connecting movable member (300), and an elastic support member made of polymeric plastic material connected to an end of the coil spring and in contact with a portion of the stepping plate (200),
• wherein the elastic portion (400) further comprises:
• a leaf spring support member (420) provided at the lower end of the leaf spring (410) and movable in the longitudinal plane of the leaf spring (410);
• a spring loaded complementary member (430) provided on the leaf spring support member (420), which is in contact with a portion of the leaf spring (410) and serves as a reference point, and which adjusts the elastic force provided by the leaf spring (410) to the stepping plate connecting movable member (300), but includes an elastic member;
• and an elastic adjustment member (440) connected to the leaf spring support member (420) and adjusting the position of the leaf spring support member (420);
• a reference point locating confirmation member (450) associated with the leaf spring support member (420) and externally visible to confirm the position of the leaf spring support member (420);
• and a leaf spring lock (460), configured at the other end of the leaf spring (410) opposite the contacts with which the leaf spring pressing portion (500) is in contact and securing the leaf spring (410),
• wherein the spring loaded complementary member (430) comprises:
• a coil spring (431) of carbon steel connected at one end to the leaf spring support member (420);
• and an elastic support member (432) of polymeric plastic connected to an end of the coil spring (431), in communication with a portion of the leaf spring (410) and having a circular upper surface,
• wherein the leaf spring pressing portion (500) comprises:
• an actuating portion (510) which is contacted at one end of the leaf spring (410) and acts as an action point;
• and a reference angle adjustment portion (520) connecting the stepping plate connecting movable member (300) and the actuating portion (510),
• wherein the actuating portion (510) comprises:
• a housing (511) positioned at an outermost side and in contact with the leaf spring (410);
• an outer ring (512) being formed on an inner side of the housing (511);
• a bearing (513) formed on an inner side of the outer ring (512);
• an inner ring (514) formed on an inner side of the bearing (513);
• a tube (515) formed on an inner side of the inner ring (514);
• and an actuating shaft (516) formed on an inner side of the tube (515) as an axis of rotation, and
• wherein the reference angle adjustment portion (520) comprises:
• an angle adjustment shaft (521) which is an axis of rotation;
• an angle adjustment handle (522) for rotating the angle adjustment shaft (521);
• an axial engagement portion (523) for joining with a selected portion of the angle adjustment shaft (521);
• an angle adjustment end (524) in the form of a bolt for engaging a lower end of the angle adjustment shaft (521);
• and a ball bearing (525) for engaging a lower end of the angle adjustment end (524) wherein the angle adjustment shaft (521) is rotated by rotation of the angle adjustment handle (522), so that the angle of engagement between the stepping plate connection movable member (300) and the elastic part (400) is adjusted, wherein a shaft engagement portion (523) fixes the shake of an angle adjustment shaft (521).