Muscle strength training device with electrically provided resistance

Abstract

A muscle strength training device with electrically provided resistance includes: a bed frame; a sliding board that can be slid on a bed plane of the bed frame along a longitudinal direction; two pulling cables for driving the sliding board to move in a first direction; and an electric resistance unit for generating resistance, wherein the resistance is transmitted to the sliding board to give the sliding board the potential to move in a second direction, which is the opposite direction of the first direction. The muscle strength training device allows the output mode of the resistance to be adjusted and changed with ease.

What is claimed is: 
     
         1 . A muscle strength training device with electrically provided resistance, comprising:
 a bed frame comprising at least one rail extending in a longitudinal direction, wherein the bed frame has a first end and a second end in the longitudinal direction, the first end has two lateral sides each provided with a guide wheel, and the second end is provided with a bed-foot frame;   a sliding board coupled to the rail and slidable on a bed plane of the bed frame in the longitudinal direction;   two pulling cables each having a connecting end and a force application end, wherein the two connecting ends are connected to the sliding board separately, and each of the two pulling cables is looped around a corresponding one of the two guide wheels such that the two force application ends are usable to drive the sliding board to move in a first direction; and   an electric resistance unit fixed on the bed frame, wherein the electric resistance unit generates resistance by using an electrical source, and the resistance is transmitted to a pulling cord connected to the sliding board such that the resistance gives the sliding board a potential to move in a second direction, wherein the second direction and the first direction are opposite directions.   
     
     
         2 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein the electric resistance unit is a motor or an electromagnetic brake. 
     
     
         3 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , further comprising a control unit, wherein the control unit is connected to the electric resistance unit through wired or wireless signal transmission in order to change a magnitude of the resistance. 
     
     
         4 . The muscle strength training device with electrically provided resistance as claimed in  claim 3 , wherein while the sliding board moves in the second direction, the resistance is output in one, or a combination, of the following modes: constant resistance, decreasing resistance, and increasing resistance. 
     
     
         5 . The muscle strength training device with electrically provided resistance as claimed in  claim 3 , wherein the control unit is a mobile phone or a control panel. 
     
     
         6 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein a bed-head frame is vertically provided at the first end of the bed frame. 
     
     
         7 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein the second end of the bed frame has two lateral sides each provided with a coupling member, and the bed-foot frame is detachably connected to the bed frame through the coupling members. 
     
     
         8 . The muscle strength training device with electrically provided resistance as claimed in  claim 7 , wherein the coupling members are fastening bolts, each of the two lateral sides of the second end of the bed frame is provided with a slot, each of the fastening bolts is provided in a corresponding one of the slots, and the fastening bolts are securely tightened after the bed-foot frame is adjusted by being rotated through an angle, and moved for a distance, with respect to the bed frame. 
     
     
         9 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein the bed-foot frame is an inverted square-U shaped frame or a board. 
     
     
         10 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein two detachable shoulder-rest plates are vertically provided on the sliding board and are arranged along a transverse direction. 
     
     
         11 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein the rail has an I-shaped cross section and has two lateral sides each provided with a rolling portion, the sliding board has a bottom portion provided with a plurality of rollers arranged along the longitudinal direction, and the rollers are configured to roll in the rolling portions. 
     
     
         12 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein each of the force application ends is fixedly provided with a gripping member. 
     
     
         13 . The muscle strength training device with electrically provided resistance as claimed in  claim 12 , wherein each of the gripping members is a gripping ring, a handle, a gripping loop, or a gripping strap. 
     
     
         14 . The muscle strength training device with electrically provided resistance as claimed in  claim 1 , wherein the electric resistance unit has a power output shaft connected to a reduction drive in order to generate the resistance.