Exercise bench

Abstract

An exercise bench includes a support frame, a first pad body and a second pad body. The support frame has a guide rod. The first pad body and the second pad body are pivotally mounted to the support frame at a first pivot and a second pivot respectively. Specifically, a link member is pivotally mounted to the first pad body at a first pivotal fulcrum and movably mounted to the guide rod at a sliding fulcrum for sliding along the guide rod. In addition, a support member is pivotally mounted to the support frame at a third pivot, and has a telescopic post being pivotally mounted to the second pad body at a second pivotal fulcrum. Particularly, a link rod pivotally connects the link member and the support member to form a linkage such that the first pad body and the second pad body are synchronized with each other.

What is claimed is: 
     
         1 . An exercise bench, comprising:
 a support frame defining a longitudinal direction, a guide rod mounted to the support frame in the longitudinal direction of the support frame;   a first pad body being pivotally mounted to the support frame at a first pivot and rotatable about the first pivot to change an inclined angle of the first pad body with respect to a horizontal plane;   a second pad body being pivotally mounted to the support frame at a second pivot and rotatable about the second pivot to change an inclined angle of the second pad body with respect to the horizontal plane, the first pad body and the second pad body arranged in the longitudinal direction of the support frame;   a link member defining a first pivotal fulcrum, a first connecting fulcrum and a sliding fulcrum, the link member having an upper end pivotally mounted to the first pad body at the first pivotal fulcrum and a lower end movably mounted coupled to the guide rod at the sliding fulcrum such that the sliding fulcrum is slidable along the guide rod for guiding, the first pad body to change the inclined angle of the first pad body;   a support member having a telescopic post and a second connecting fulcrum, the support member being pivotally mounted to the support frame at a third pivot for being rotatable about the third pivot; the telescopic post being telescopic in an axial direction, and having an upper end pivotally mounted to the second pad body at a second pivotal fulcrum; and   a link rod pivotally connecting the link member at the first connecting fulcrum and the support member at the second connecting fulcrum such that the motion of the link member and the support member are synchronized by the link rod. wherein the inclined angle of the first pad body with respect to the horizontal plane is simultaneously changed with the change in the inclined angle of the second pad body with respect to the horizontal plane.   
     
     
         2 . The exercise bench as claimed in  claim 1 , wherein the telescopic post has an outer tube and an inner tube; the outer tube is rotatable with respect to the support frame and the inner tube is telescopically received in the outer tube; and the inner tube has an upper end pivotally mounted to the second pad body at the second pivotal fulcrum. 
     
     
         3 . The exercise bench as claimed in  claim 2 , wherein the inner tube has a plurality of positioning holes in one side thereof; a lock pin is positioned in a selected one of the positioning holes of the inner tube for locking the outer tube and the inner tube relative to each other such that a length of the telescopic post is adjustable to change inclined positions of the second pad body. 
     
     
         4 . The exercise bench as claimed in  claim 1 , wherein the link member has a connecting arm and a mounting tab on one side of the connecting arm; the first pivotal fulcrum and the sliding fulcrum are defined at an upper end and a lower end of the connecting arm respectively; and the first connecting fulcrum is defined at the mounting tab. 
     
     
         5 . The exercise bench as claimed in  claim 1 , wherein the sliding fulcrum of the link member is pivotally connected with a slide bushing for sliding along the guide rod. 
     
     
         6 . The exercise bench as claimed in  claim 1 , wherein the guide rod has one end secured to the support frame; and the guide rod is arranged in an orientation to accommodate a motion of the sliding fulcrum of the link member. 
     
     
         7 . The exercise bench as claimed in  claim 1 ; wherein the support member has a swing arm connected with the telescopic post for being rotatable about the third pivot; and the link rod is pivotally connected to the swing arm at the second connecting fulcrum. 
     
     
         8 . The exercise bench as claimed in  claim 1 , wherein the first pad body is a seat which has a front end pivotally mounted to the support frame at the first pivot; the second pad body is a seat back which has a front end pivotally mounted to the support frame at the second pivot; and a rear end of the seat is adjacent to the front end of the seat back. 
     
     
         9 . The exercise bench as claimed in  claim 8 , wherein the first pivotal fulcrum between the seat and the link member is located close to the rear end of the seat; and the second pivotal fulcrum between the seat back and the telescopic post is located close to a rear end of the seat back.