Push-up exerciser

Abstract

A push-up exerciser has a base, two handgrips, a connecting rod having two ends respectively connected pivotally to the base and a supporter, at least one resilient element connected to the connecting rod and the supporter, a roller pivotally mounted on a lower end of the supporter, and a pad pivotally mounted on an upper end of the supporter. A user places his/her abdomen on the pad, grasps the handgrips and then bends or straightens his/her arms to perform push-ups. Since the at least one resilient element tends to pull the supporter and the connecting rod so the pad tends to support the abdomen of the user, load applied to the arms of the user is reduced. The push-up exerciser has simplified structure, low manufacturing cost and helps the user to safely perform push-ups.

What is claimed is: 
     
         1 . A push-up exerciser comprising
 a base;   two handgrips respectively mounted beside two opposite sides of the base;   a connecting rod having
 an upper end; and 
 a lower end pivotally connected to a rear of the base; 
   a supporter pivotally connected to the upper end of the connecting rod and having an upper end and a lower end;   at least one resilient element connected to the connecting rod and the supporter and disposed below the upper end of the connecting rod;   a roller pivotally mounted on the lower end of the supporter; and   a pad pivotally mounted on the upper end of the supporter.   
     
     
         2 . The push-up exerciser as claimed in  claim 1  further comprising a stopper mounted on the supporter and disposed above the upper end of the connecting rod. 
     
     
         3 . The push-up exerciser as claimed in  claim 2 , wherein the stopper is a wheel and is pivotally mounted on the supporter. 
     
     
         4 . The push-up exerciser as claimed in  claim 1 , wherein
 the push-up exerciser further comprises
 a rear shaft transversely mounted through the connecting rod and having two opposite ends; and 
 a front shaft transversely mounted through the supporter and having two opposite ends; and 
   the push-up exerciser comprises two resilient elements, each resilient element extending from a front to the rear of the base and having two mounting ends respectively connected to a corresponding end of the rear shaft and a corresponding end of the front shaft.   
     
     
         5 . The push-up exerciser as claimed in  claim 2 , wherein
 the push-up exerciser further comprises
 a rear shaft transversely mounted through the connecting rod and having two opposite ends; and 
 a front shaft transversely mounted through the supporter and having two opposite ends; and 
   the push-up exerciser comprises two resilient elements, each resilient element extending from a front to the rear of the base and having two mounting ends respectively connected to a corresponding end of the rear shaft and a corresponding end of the front shaft.   
     
     
         6 . The push-up exerciser as claimed in  claim 3 , wherein
 the push-up exerciser further comprises
 a rear shaft transversely mounted through the connecting rod and having two opposite ends; and 
 a front shaft transversely mounted through the supporter and having two opposite ends; and 
   the push-up exerciser comprises two resilient elements, each resilient element extending from a front to the rear of the base and having two mounting ends respectively connected to a corresponding end of the rear shaft and a corresponding end of the front shaft.   
     
     
         7 . The push-up exerciser as claimed in  claim 1 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         8 . The push-up exerciser as claimed in  claim 2 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         9 . The push-up exerciser as claimed in  claim 3 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         10 . The push-up exerciser as claimed in  claim 4 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         11 . The push-up exerciser as claimed in  claim 5 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         12 . The push-up exerciser as claimed in  claim 6 , wherein
 the base has two mounting ends, each mounting end of the base being hollow and cylindrical and having multiple positioning holes formed through the mounting end of the base;   each handgrip has a mounting end being transversely curved, being hollow and cylindrical, axially mounted through a corresponding mounting end of the base and having multiple positioning holes formed through the mounting end of the handgrip; and   the push-up exerciser further comprises two positioning plates being resilient and respectively mounted in the mounting ends of the handgrips, and each positioning plate has a positioning protrusion mounted through a pair of positioning holes of the base and the handgrip.   
     
     
         13 . The push-up exerciser as claimed in  claim 1 , wherein each handgrip has
 a standing end protruding vertically; and   a holding portion being upwardly curved.   
     
     
         14 . The push-up exerciser as claimed in  claim 2 , wherein each handgrip has
 a standing end protruding vertically; and   a holding portion being upwardly curved.   
     
     
         15 . The push-up exerciser as claimed in  claim 3 , wherein each handgrip has
 a standing end protruding vertically; and   a holding portion being upwardly curved.   
     
     
         16 . The push-up exerciser as claimed in  claim 10 , wherein each handgrip further has
 a standing end protruding vertically; and   a holding portion defined between the standing end and the mounting end of the handgrip and being upwardly curved.   
     
     
         17 . The push-up exerciser as claimed in  claim 11 , wherein each handgrip further has
 a standing end protruding vertically; and   a holding portion defined between the standing end and the mounting end of the handgrip and being upwardly curved.   
     
     
         18 . The push-up exerciser as claimed in  claim 12 , wherein each handgrip further has
 a standing end protruding vertically; and   a holding portion defined between the standing end and the mounting end of the handgrip and being upwardly curved.   
     
     
         19 . The push-up exerciser as claimed in  claim 1 , wherein each of the at least one resilient element is a tension spring.