Exercising Device Operated By A Motor To Perform A Passive Reciprocating Motion

Abstract

An exercising device includes a base, a driving unit and a limit cap. The base has an upper surface provided with two toothed racks, a first stop post and a second stop post and a lower surface provided with an antiskid member. The limit cap has a slideway. The driving unit includes a housing, a rotation shaft, a motor, two driven gears, two handgrips, and a control switch. When the control switch is moved to touch the first stop post or the second stop post, the control switch is driven to change the rotation direction of the motor. Thus, the slideway limits the moving direction of the driving unit to prevent the driving unit from being deflected sideward during movement. In addition, the base will not slip from the ground by provision of the antiskid member.

1 . An exercising device, comprising:
 a base;   a driving unit mounted on the base;   a limit cap mounted between the base and the driving unit to limit the driving unit onto the base;   wherein the base has an upper surface provided with two parallel toothed racks, a first stop post and a second stop post;   the limit cap has a top formed with an elongate slideway to allow a sliding movement of the driving unit;   the driving unit includes:   a housing slidably mounted in and guided by the slideway of the limit cap;   a rotation shaft rotatably mounted on the housing and having two opposite ends protruded outward from the housing respectively;   a motor mounted in the housing and connected with the rotation shaft to rotate the rotation shaft;   two driven gears mounted on and rotated by the two opposite ends of the rotation shaft respectively and meshing with the toothed racks of the base respectively;   two handgrips mounted on the housing to move in concert with the housing and protruded outward from the slideway of the limit cap;   a control switch mounted on the housing to move in concert with the housing and provided with a switching lever that is movable to touch the first stop post or the second stop post of the base;   when the control switch of the driving unit is movable to touch the first stop post or the second stop post of the base, the switching lever of the control switch is driven by the first stop post or the second stop post of the base to change a rotation direction of the motor of the driving unit.   
     
     
         2 . The exercising device of  claim 1 , wherein
 the base has a lower surface provided with an antiskid member;   the antiskid member of the base is an antiskid pad which has an endless shape and is arranged on a periphery of the lower surface of the base.   
     
     
         3 . The exercising device of  claim 1 , wherein
 the base has a lower surface provided with an antiskid member;   the antiskid member of the base is an antiskid pad which has a planar shape and covers the lower surface of the base completely.   
     
     
         4 . The exercising device of  claim 1 , wherein the driving unit further includes:
 a push button mounted on one of the two handgrips and electrically connected with the motor to turn on/off the motor;   an electric wire electrically connected with the motor to supply an electric power to the motor.   
     
     
         5 . The exercising device of  claim 1 , wherein
 the limit cap has two flexible catch pieces which are arranged on the slideway to cover the slideway or to open the driving unit by the resilience of each of the two flexible catch pieces;   the housing of the driving unit is partially received in the limit cap and partially protrudes outward from the slideway of the limit cap.   
     
     
         6 . The exercising device of  claim 1 , wherein driving unit further includes:
 a delay switch electrically connected with the motor and the control switch to provide a delay time to the motor when a current direction of the motor is changed so as to eliminate the inertia of the motor so that the driving unit is moved more smoothly and stably.   
     
     
         7 . The exercising device of  claim 1 , wherein
 the driving unit further includes two elongate limit flanges mounted on two opposite sides of the housing respectively and abutting a wall of the slideway of the limit cap;   each of the two limit flanges of the driving unit is located under the slideway of the limit cap and is disposed between each of the two handgrips and each of the driven gears of the driving unit to space the limit cap from the driven gears of the driving unit;   each of the driven gears of the driving unit is located under and fully hidden in the limit cap;   each of the two handgrips of the driving unit is parallel with the rotation shaft of the driving unit;   the control switch of the driving unit is electrically connected with the motor of the driving unit;   the first stop post of the base is located at a first end of one of the toothed racks;   the second stop post of the base is located at a second end of one of the toothed racks.