Footrest assembly for a massage chair

Abstract

A footrest assembly for a massage chair comprises a pivotal seat, a connecting seat, a stretchable rack, a connecting rod assembly and a motor assembly. A screw shaft is mounted on the connecting seat, and a drive block is screwed on the screw shaft. A first rail is mounted between the pivotal seat and the connecting seat. A second rail is mounted between the connecting seat and the stretchable rack, the connecting rod assembly is disposed between the pivotal seat and the stretchable rack, and the drive block drives the connecting rod assembly to move forward or backward. The motor assembly comprises a motor and a gear set and serves to rotate the screw shaft.

1 . A footrest assembly for a massage chair comprising a pivotal seat, a connecting seat, a stretchable rack, a connecting rod assembly and a motor assembly; 
 wherein a screw shaft is mounted on the connecting seat, and a drive block is screwed on the screw shaft;    a first rail is mounted between the pivotal seat and the connecting seat;    a second rail is mounted between the connecting seat and the stretchable rack;    the connecting rod assembly is disposed between the pivotal seat and the stretchable rack, and the drive block drives the connecting rod assembly to move forward or backward;    the motor assembly comprises a motor and a gear set and serves to rotate the screw shaft.    
   
   
       2 . The footrest assembly for a massage chair as claimed in  claim 1 , wherein the stretchable rack and a footrest rack are disposed at a front end of a massage chair; 
 at a front end of the stretchable rack are arranged a plurality of mounting members each of which is defined with a pivotal hole;    the footrest rack is provided with a plurality of pivotal arms that are pivoted to the pivotal hole of the mounting members of the stretchable rack, and a swing angle of the respective pivotal arms is limited by the mounting members; and    a spring is arranged between the stretchable rack and the footrest rack.    
   
   
       3 . The footrest assembly for a massage chair as claimed in  claim 2 , wherein a plurality of massage members are mounted on the footrest rack and the stretchable rack for massaging the user's lower limbs.  
   
   
       4 . The footrest assembly for a massage chair as claimed in  claim 2 , wherein the stretchable rack is provided at a front end thereof with two opposite mounting members each of which is defined with the pivotal hole, at either side of the pivotal hole are formed a first positioning protrusion and a second positioning protrusion that form an angle relative to the respective mounting members, and adjacent to the first positioning protrusion is arranged a first spring-mounting member; 
 the footrest rack is provided at an end thereof with two pivotal arms that are pivoted to the pivotal hole of the mounting members of the stretchable rack, and the pivotal arms are confined between the first positioning protrusion and the second positioning protrusion of the mounting members, the pivotal arms are provided with a second spring-mounting member;    the spring is arranged between the first spring-mounting member and the second spring-mounting member; and    the plurality of massage members are mounted on the footrest rack and the stretchable rack for massaging the user's lower limbs.    
   
   
       5 . The footrest assembly for a massage chair as claimed in  claim 1 , wherein the pivotal seat is pivotally connected to the front end of a massage chair and the first rail is arranged in a direction of the leg of the user, the pivotal seat is provided with a pivotal member that is located in a stretching direction of the massage chair, at a center of the pivotal seat is arranged a screw shaft, and both ends of the screw shaft are mounted to a bolt mounting member beneath the pivotal seat, the drive block is screwed on the screw shaft; 
 the connecting seat is slideably mounted on the first rail, at a center of the connector seat is arranged a push rod, and the connecting seat is provided with a second rail that is located in a direction of the user's legs, the connecting seat is connected to an end of the drive block of the pivotal seat;    the stretchable rack is slideably mounted on the second rail of the connecting seat, and on the stretchable rack are mounted massaging devices; and    the connecting rod assembly comprises a driven rod and a leading rod, the leading rod is pivoted to the pivotal member of the pivotal seat, and on the driven rod is formed a slot for insertion of the push rod.    
   
   
       6 . The footrest assembly for a massage chair as claimed in  claim 2 , wherein the pivotal seat is pivotally connected to the front end of a massage chair and the first rail is arranged in a direction of the leg of the user, the pivotal seat is provided with a pivotal member that is located in a stretching direction of the massage chair, at a center of the pivotal seat is arranged a screw shaft, and both ends of the screw shaft are mounted to a bolt mounting member beneath the pivotal seat, the drive block is screwed on the screw shaft; 
 the connecting seat is slideably mounted on the first rail, at a center of the connector seat is arranged a push rod, and the connecting seat is provided with a second rail that is located in a direction of the user's legs, the connecting seat is connected to an end of the drive block of the pivotal seat;    the stretchable rack is slideably mounted on the second rail of the connecting seat, and on the stretchable rack are mounted massaging devices; and    the connecting rod assembly comprises a driven rod and a leading rod, the leading rod is pivoted to the pivotal member of the pivotal seat, and on the driven rod is formed a slot for insertion of the push rod.    
   
   
       7 . The footrest assembly for a massage chair as claimed in  claim 3 , wherein the pivotal seat is pivotally connected to the front end of a massage chair and the first rail is arranged in a direction of the leg of the user, the pivotal seat is provided with a pivotal member that is located in a stretching direction of the massage chair, at a center of the pivotal seat is arranged a screw shaft, and both ends of the screw shaft are mounted to a bolt mounting member beneath the pivotal seat, the drive block is screwed on the screw shaft; 
 the connecting seat is slideably mounted on the first rail, at a center of the connector seat is arranged a push rod, and the connecting seat is provided with a second rail that is located in a direction of the user's legs, the connecting seat is connected to an end of the drive block of the pivotal seat;    the stretchable rack is slideably mounted on the second rail of the connecting seat, and on the stretchable rack are mounted massaging devices; and    the connecting rod assembly comprises a driven rod and a leading rod, the leading rod is pivoted to the pivotal member of the pivotal seat, and on the driven rod is formed a slot for insertion of the push rod.    
   
   
       8 . The footrest assembly for a massage chair as claimed in  claim 4 , wherein the pivotal seat is pivotally connected to the front end of a massage chair and the first rail is arranged in a direction of the leg of the user, the pivotal seat is provided with a pivotal member that is located in a stretching direction of the massage chair, at a center of the pivotal seat is arranged a screw shaft, and both ends of the screw shaft are mounted to a bolt mounting member beneath the pivotal seat, the drive block is screwed on the screw shaft; 
 the connecting seat is slideably mounted on the first rail, at a center of the connector seat is arranged a push rod, and the connecting seat is provided with a second rail that is located in a direction of the user's legs, the connecting seat is connected to an end of the drive block of the pivotal seat;    the stretchable rack is slideably mounted on the second rail of the connecting seat, and on the stretchable rack are mounted massaging devices; and    the connecting rod assembly comprises a driven rod and a leading rod, the leading rod is pivoted to the pivotal member of the pivotal seat, and on the driven rod is formed a slot for insertion of the push rod.    
   
   
       9 . The footrest assembly for a massage chair as claimed in  claim 5 , wherein the connecting seat comprise a lateral shaft arranged at the front end thereof, and on the driven rod of the connecting rod assembly is formed the slot for insertion of the lateral shaft.  
   
   
       10 . The footrest assembly for a massage chair as claimed in  claim 6 , wherein the connecting seat comprise a lateral shaft arranged at the front end thereof, and on the driven rod of the connecting rod assembly is formed the slot for insertion of the lateral shaft.  
   
   
       11 . The footrest assembly for a massage chair as claimed in  claim 7 , wherein the connecting seat comprise a lateral shaft arranged at the front end thereof, and on the driven rod of the connecting rod assembly is formed the slot for insertion of the lateral shaft.  
   
   
       12 . The footrest assembly for a massage chair as claimed in  claim 8 , wherein the connecting seat comprise a lateral shaft arranged at the front end thereof, and on the driven rod of the connecting rod assembly is formed the slot for insertion of the lateral shaft.