as shown in fig1 and 2 , a body exerciser constructed in accordance of the invention comprises a compression arm ( 10 ), a stationary arm ( 20 ) pivotally connected at the top end of the compression arm ( 10 ) by a hinge pin ( 12 ) inserted through holes ( 11 , 201 ) defined in the compression arm ( 10 ) and the stationary arm ( 20 ) respectively , and a resistive member ( 30 ) provided between the compression arm ( 10 ) and the stationary arm ( 20 ). a bar ( 13 ) covered by protective material ( 131 ) is provided at the bottom end of the compression arm ( 10 ). the stationary arm ( 20 ) has a cushion ( 21 ) mounted at the outer side of the bottom end . the resistive member ( 30 ) consists of an outer tube ( 34 ), an inner tube ( 31 ) slidably received in the outer tuber ( 34 ) and a spring ( 40 ) compressed between the two . the inner tube ( 31 ) has an eye ( 33 ) which can be pivotally connected to a socket ( 14 ) formed on an inner face of the compression arm ( 10 ), and a collar ( 32 ) having a diameter greater than that of the inner tube ( 31 ) to snugly but slidably fit inside the outer tube . the collar ( 32 ) has a pair threaded openings ( 321 ) defined on opposite sides of the collar ( 32 ) and a recessed inner flange ( 322 ) formed on the end face defining the collar ( 32 ). the outer tube ( 34 ) is detachably connected to the inner face of the stationary arm ( 20 ) by means of a latch device ( 36 ) which comprises a tongue ( 361 ) formed under an extension ( 363 ) formed on the bottom of the outer tube ( 34 ), and a tongue seat ( 362 ) formed on an inner face of the stationary arm ( 20 ). a protrusion ( 341 ) is provided on an inner end face of the outer tube ( 34 ) for securing one end of the spring ( 40 ). a pair of longitudinal slots ( 35 ) are defined in on opposite sides of the outer tube ( 34 ). two first blocks ( 37 ) are respectively mounted on the end portion of the outer tube ( 34 ) and each have a groove ( 371 ) defined therein . during assembly , one end of the spring ( 40 ) is first inserted into the outer tube ( 34 ) and abutted against the protrusion ( 341 ). the other end of the spring ( 40 ) is abutted against the inner flange ( 322 ) of the inner tube ( 31 ), after the collar ( 32 ) is inserted into the outer tube ( 34 ). a pair of second blocks ( 38 ) respectively having a cutout ( 381 ) are then fixed to the collar ( 32 ) by a pair of screws ( not numbered ). after the inner tube ( 31 ) is inserted into the outer tube ( 34 ), each of the second blocks ( 38 ) are inserted through the respective slots ( 35 ) of the outer tube ( 34 ) and then secured to the collar ( 32 ) of the inner tube ( 31 ) by inserting the screw through the respective second blocks ( 38 ) and into the threaded openings ( 321 ) in the collar ( 32 ). after the inner tube ( 31 ) and the outer tube ( 34 ) are connected , the connection end ( 33 ) of the inner tube ( 31 ) is pivotally connected to the socket ( 14 ) and the tongue ( 361 ) is detachably snapped into the tongue seat ( 362 ). referring to the fig3 and 4 and again taking fig1 and 2 for reference , when the pair of second blocks ( 38 ) are securely connected with the inner tube ( 31 ) and slidably received in the slots ( 35 ) of the outer tube ( 35 ), a rubber band ( 39 ) is able to be positioned in the opposed groove ( 371 ) of the first block ( 37 ) and the cutout ( 381 ) of the second block ( 38 ) so as to function as a recoil source when in application . referring to fig5 - 8 , a user is able to use the invention to improve his / her abdomen , chest , back or legs by placing the invention on wherever needs to be improved . the second usage is that the user can push the compression arm ( 10 ) and the stationary arm ( 20 ) toward each other . the spring ( 40 ) returns the exerciser to its expanded configuration . this can improve the user &# 39 ; s arms . referring to fig9 when the body exerciser of the invention is not in use , the user is able to detach the tongue ( 361 ) from the tongue seat ( 362 ) to separate the compression arm ( 10 ) from the stationary arm ( 20 ). after the compression arm ( 10 ) and the stationary arm ( 20 ) are separated , the body exerciser can be folded to save space . therefore , it is noted from the description above that the invention has the following advantages :
the invention provides a simple , small , and easy - to - assemble body exerciser which has a compression arm , a stationary arm pivotally connected to the compression arm , and a spring provided between the compression arm and the stationary arm . the body exerciser can be used to exercise a user &# 39 ; s abdomen and arm muscles and can be folded to reduce the storage space .