Automotive hydrogen storage tank support system

An automotive hydrogen storage tank support system for a vehicle, comprising:

• a floor;
• a pair of side sills mounted on lateral edges of the floor, respectively;
• a support frame mounted on the floor, and configured to support a hydrogen storage tank;
• a pair of floor longitudinal members attached to a bottom surface of the floor;
• and
• a plurality of floor crossmembers connecting the pair of floor longitudinal members to each other;
• and
• a plurality of seat slide rails mounted on a top surface of the floor,
• wherein the support frame includes a pair of longitudinal members, and a plurality of transverse members connecting the pair of longitudinal members to each other,
• at least one transverse member among the plurality of transverse members has a pair of extension portions respectively extending oppositely from opposite ends thereof toward the pair of side sills,
• each extension portion is joined to a corresponding side sill of the pair of side sills,
• the pair of longitudinal members are joined to at least one floor crossmember among the plurality of floor crossmembers,
• a pipe nut is mounted in an inner cavity of the at least one floor crossmember,
• an upper bolt extends through the seat slide rail,
• an external thread of the upper bolt is screwed into an upper internal thread of the pipe nut,
• a lower bolt extends through the longitudinal member and the floor crossmember, and
• an external thread of the lower bolt is screwed into a lower internal thread of the pipe nut.