Abdominal exercise device

摘要

An abdominal exercise device has a kneeling pad and a roller. The kneeling pad includes a top surface and two spaced apart kneeling recesses. The kneeling recesses are formed in the top surface of the kneeling pad. The roller is positioned movably relative to the kneeling pad when in use and includes a bracket, a left handle, a right handle, a front wheel and two rear wheels. The left and right handles are attached to a middle of the bracket. The front wheel is mounted on a front of the bracket. The rear wheels are mounted on a rear of the bracket. The kneeling recesses are ergonomically designed to correspond to contours of the human knees, thereby providing a comfortable support for a user's knees. The three wheels ensure that the roller has good balanced performance such that the user can steadily operate the roller.

主权项

1. A roller for an abdominal exercise device comprising:
a bracket including
two spaced apart mounting pieces, each mounting piece havinga top;a front portion having a front hole therein; anda rear portion having a rear hole therein; a connecting piece having two sides connected to the tops of the two mounting pieces; a left bolt; a right bolt, the left and right bolts extending leftward and rightward from middle portions of the mounting pieces respectively; a left handle and a right handle, the left and right handles attached to a middle of the bracket, each of the left and right handles including a threaded hole, the threaded hole in the left handle screwed onto the left bolt of the bracket, and the threaded hole in the right handle screwed onto the right bolt of the bracket; a front wheel rotatably mounted on a front of the bracket and including
a shaft hole; anda front shaft sequentially extending through the front hole in one of the mounting pieces, the shaft hole in the front wheel, and the front hole in the other mounting piece, the front shaft having two threaded holes at its opposite ends; two front screws threaded into the two threaded holes in the front shaft respectively, and each front screw having a head to press against an outer surface of the mounting piece; two rear wheels rotatably mounted on a rear of the bracket, each rear wheel including
a shaft hole; anda rear shaft sequentially extending through the shaft hole in one of the rear wheels, the rear hole in one of the mounting pieces, the rear hole in the other mounting piece, and the shaft hole in the other rear wheel, the rear shaft having two threaded holes at its opposite ends; and two rear screws threaded into the two threaded holes in the rear shaft respectively, and each rear screw having a head to press against an outer surface of the rear wheel.