Electric rocking chair

Abstract

An electric rocking chair equipped with an electric device engendering automatically an in and out movement of the chair without there being a push by the user. The chair includes an armature deposited on the top of a support base containing a displacement device. The armature is fixed to the base in pivots allowing to move the chair front to back by means of a seesaw operation. The device includes an electric engine coupled with a reducer at the output of which is fixed a wheel to which a belt causes the moving of a horizontal arm with an elbow which acts on the armature so as to produce the in and out movement of the chair. A control lever within reach of a user allows to command the engine and to engage the in and out movement or to stop it. Another version involving a cam arrangement is provided.

1 . An electric rocking chair comprising:
 means of support ( 22 ) comprising at least two upright corners ( 54 , 54 ′) positioned respectivelly at the back and at the front of said support;   a pair of pendulum ( 48 , 58 ) pivotedly mounted ( 52 , 53 ) at top ends of said upright corners and comprising bottom pivots ( 50 , 51 );   a seat comprising an armature ( 25 ) comprising a link of seat ( 45 ) and front and back legs ( 21 , 23 ) intended to be fixed at said bottom pivots ( 50 , 51 );   Means to apply a rotative energy and means of cam ( 38 ) to transform said rotative energy into a translative energy against said link of seat to make it move from front to back, the weight of said front and back legs on said pair of pendulums causing a rocking movement of said electric rocking chair.   
     
     
         2 . The rocking chair of  claim 1  wherein said means of support ( 22 ) comprise a rectangular frame comprising four upright corners with two at the front and two at the back. 
     
     
         3 . The rocking chair of  claim 2  wherein said pendulums, said legs and said pivots number four. 
     
     
         4 . The rocking chair of  claim 2  wherein said means to apply energy comprise a motor ( 34 ) controlling a reducer ( 36 ) coupled to a pulley ( 60 ) which by a belt ( 24 ) pulls a wheel ( 26 ) pulling said means of cam. 
     
     
         5 . The rocking chair of  claim 4  wherein said means of cam comprise an arm ( 28 ) of cam radially mounted on said wheel and supporting a pivot ( 40 ) of cam pivotedly connected to a horizontal arm ( 42 ) acting on said link ( 45 ) of seat. 
     
     
         6 . The rocking chair of  claim 5  wherein said horizontal arm comprises an elbow ( 44 ) to protect neighbouring structures from scratches or breaking during the rise and the ascent of said pendulums. 
     
     
         7 . The rocking chair of  claim 5  wherein said horizontal arm comprises a hand ( 43 ) intended to seize said link ( 45 ) of seat. 
     
     
         8 . The rocking chair of  claim 3  wherein said armature ( 25 ) is linked to curved legs in a convex way to move closer bottom pivots ( 50 , 51 ) with regard to top pivots ( 52 , 53 ). 
     
     
         9 . The rocking chair of  claim 3  wherein said motor-reducer ( 34 , 36 ) is connected on said means of cam ( 38 ) and fixed on a connecting rod ( 29 ) linked to a horizontal arm ( 42 ) through a pivot ( 41 ). 
     
     
         10 . The rocking chair of  claim 9  wherein said horizontal arm comprises an elbow ( 44 ) to protect neighbouring structures from scratches or breaking during the rise and the ascent of said pendulums. 
     
     
         11 . The rocking chair of  claim 9  wherein said horizontal arm comprises a hand ( 43 ) intended to seize said link ( 45 ) of seat. 
     
     
         12 . The rocking chair of  claim 9  wherein said pivot ( 41 ) is a bearing. 
     
     
         13 . The rocking chair of  claim 1  wherein said upright corners stand on a rubber base to protect scratches.