초록 ▼

A training device (10) for exercising the abdominal muscles (40) of a user (30), comprises a base portion (11), an upstanding resistance member (21) contained within a housing (12) and a plunger (13). The resistance member (21) is operably connected to the plunger (13) and is biased normally to urge

A training device (10) for exercising the abdominal muscles (40) of a user (30), comprises a base portion (11), an upstanding resistance member (21) contained within a housing (12) and a plunger (13). The resistance member (21) is operably connected to the plunger (13) and is biased normally to urge the plunger (13) upwardly out of the housing (12). By standing on the base portion (11) and exerting a downward force (c) on the plunger (13) whilst keeping his arms (41, 42) and legs (43, 44) straight, the user (30) causes his abdominal muscles (40) to work to overcome the resistance to the downward motion of the plunger (13) provided by the resistance member (21), thus driving the plunger (13) downwards into the housing (12).

대표청구항 ▼

The invention claimed is: 1. An abdominal muscle training device comprising:a base portion having an upper footplate and a fixed lower section, said upper footplate being mounted for rotation on said fixed lower section;a resistance member comprising a spring, said resistance member being generally

The invention claimed is: 1. An abdominal muscle training device comprising:a base portion having an upper footplate and a fixed lower section, said upper footplate being mounted for rotation on said fixed lower section;a resistance member comprising a spring, said resistance member being generally upstanding from the base portion; anda plunger arranged for vertical downward motion against the resistance of the resistance member; anda generally tubular housing for the resistance member said housing upstanding from the base portion and having an upper end comprising an annular cap provided with at least one bearing to facilitate motion of the plunger relative to the housing, said housing being further adapted to accommodate a lower part of the plunger when said plunger is depressed;wherein said spring is mounted within the housing and has a lower end attached to said base portion and an upper end provided with a head element, said head element being adapted for connection to said plunger;wherein said plunger has a lower end comprising a retaining element adapted to prevent inadvertent removal of said lower end of said plunger from said housing; andwherein said upper footplate is adapted to support a user in a standing position from which position said user can perform exercise against the resistance of the resistance member by manually applying a downwardly force to depress the plunger.