Abdomen exercise bench

摘要

An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a seat assembly and a backrest assembly rotatably coupled with the base frame. The base frame can include side members and a crossbar member to provide floor support. The backrest assembly may be configured to swivel with rotational movements around at least one axis of rotation. The backrest assembly may include at least one swivel structure and two handle bars. Each swivel structure may be rotatable around a separate axis of rotation. The handle bars may be mounted substantially transverse to a particular axis of rotation. The seat assembly can include a seat pad affixed to the crossbar member to allow a user sitting on the seat pad to cause the swiveling of the backrest assembly via hand pushes on the handle bars.

主权项

1. An exercising machine consisting of:
a base frame comprising side members and a crossbar member to provide floor support, the side members including a first side member and a second side member, the crossbar member transversely coupled between the first and second side members; a backrest assembly rotatably coupled with the base frame, the backrest assembly comprising an axis of rotation, the backrest assembly configured to swivel with rotational movements around the axis of rotation, the backrest assembly comprising:
a swivel structure rotatable around the axis of rotation, the swivel structure including a pivot bar arranged longitudinally aligned with the axis of rotation and a support bar transversely affixed to the pivot bar, andtwo handle bars mounted to the pivot bar substantially orthogonal to the axis of rotation, wherein the handle bars are configured to allow force exerted on the handle bars to cause swiveling of the support bars around the pivot bar; and a seat assembly comprising a seat pad, the seat assembly affixed to the crossbar member to allow a user sitting on the seat pad to cause the swiveling of the backrest assembly via hand pushes on the handle bars.