PUMP / CYLINDER FOR A DEVICE INTENDED FOR SIMULTANEOUSLY WORKING ANTAGONIST MUSCLES, ESSENTIALLY COMPRISING A CYLINDER WITH WATER OR ANOTHER FLUID SUITABLE FOR WORKING BY TRACTION AND COMPRESSION, CORRESPONDING DEVICE COMPRISING A MEANS FOR CONTACT WITH THE BODY OR FOR CONTROL, SAID DEVICE AND CORRESPONDING USES FOR GYMNASTICS OR BODYBUILDING

摘要

The invention relates to a pump which essentially comprises a cylinder comprising a body (1), a piston (6), P comprising holes a, b,... with separate diameters, and a cylinder washer R comprising a single hole T, the piston washers P and cylinder washer R being suitable for the wide hole T to be placed consecutively opposite the holes a, b,..., which have a diameter equal to T for a, smaller for b, smaller yet for c, etc., which means that a relative rotation of the two parts R and P sets the fluid flow that can pass through R by compression OR by traction, thus modulating the force to be exerted by the patient. A pointer system 20 / spring r in R and a hollow boss (130) in P allows the device to be locked in the desired setting position. This makes it possible, due to the alternating work of the cylinder (compression/traction/compression/traction/etc.), for the first time to work the so-called "antagonist" muscles, for example abductors and adductors, biceps and triceps, thighs and buttocks, etc., during a single exercise and continuously, in other words without a rest phase, thus doubling the efficiency of the exercise, even though the device is compact, light, inexpensive and suitable for use in weightlifting, rehabilitation, hospitals or by individuals at home.