Patent Publication Number: US-2003233060-A1

Title: Automatic massage device

Description:
BACKGROUND OF THE INVENTION  
       [0001] The present invention relates to an automatic massage device. More particularly, the present invention relates to an automatic massage device which pats a user automatically.  
       [0002] A conventional massage device cannot pat a user automatically. A user should use a plate to pat his body manually. Therefore, a user will be weary after a long period of patting.  
       SUMMARY OF THE INVENTION  
       [0003] An object of the present invention is to provide an automatic massage device which pats a user automatically and conveniently.  
       [0004] Another object of the present invention is to provide an automatic massage device which pats a user safely.  
       [0005] Another object of the present invention is to provide an automatic massage device which is suitable for a long period of usage.  
       [0006] Accordingly, an automatic massage device comprises a base panel, a transmission mechanism, and a rocking mechanism. Two pairs of posts are disposed on the base panel. Two pairs of pillars are disposed on the base panel. The transmission mechanism has a motor disposed on the base panel, a first worm, a second worm, two gears, two pairs of first bearings, two generally S-shaped push plates, two driven shafts, and the motor having a first main shaft connected to the first worm and a second main shaft connected to the second worm. Each pair of posts position the corresponding driven shaft. Each pair of first bearings are disposed on the corresponding gear. Each driven shaft passes through the corresponding generally S-shaped push plate, the corresponding pair of first bearings, and the corresponding gear. The first worm engages with the corresponding gear. The second worm engages with the corresponding gear. The rocking mechanism has two rocking plates, two pairs of second bearings, two pivot shafts, two controlling plates, two expansion springs, two chucks, two roller wheels, and two platforms. Each pair of pillars position the corresponding pivot shaft. Each platform is connected to the corresponding rocking plate. Each chuck is disposed on the corresponding platform to receive a plurality of rods. Each expansion spring is connected to the base panel and the corresponding controlling plate. Each pair of second bearings are disposed on the corresponding rocking plate. Each driven shaft passes through the corresponding pair of second bearings, the corresponding rocking plate, and the corresponding controlling plate. Each roller wheel is disposed on a bottom of the corresponding rocking plate. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0007]FIG. 1 is a perspective view of an automatic massage device of a preferred embodiment in accordance with the present invention;  
     [0008]FIG. 2 is a top plan view of an automatic massage device of a preferred embodiment in accordance with the present invention;  
     [0009]FIG. 3 is a schematic view illustrating a first operation of an automatic massage device of a preferred embodiment in accordance with the present invention;  
     [0010]FIG. 4 is a schematic view illustrating a second operation of an automatic massage device of a preferred embodiment in accordance with the present invention; and  
     [0011]FIG. 5 is a schematic view illustrating a third operation of an automatic massage device of a preferred embodiment in accordance with the present invention. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
     [0012] Referring to FIGS.  1  to  5 , an automatic massage device comprises a base panel A 1 , a transmission mechanism  1 , and a rocking mechanism  2 .  
     [0013] Two pairs of posts  12  are disposed on the base panel A 1 .  
     [0014] Two pairs of pillars  22  are disposed on the base panel A 1 .  
     [0015] The transmission mechanism  1  has a motor  11  disposed on the base panel A 1 , a first worm  112 , a second worm  113 , two gears  121 , two pairs of first bearings  124 , two generally S-shaped push plates  123 , two driven shafts  122 , and the motor  11  having a first main shaft  111  connected to the first worm  112  and a second main shaft  111 ′ connected to the second worm  113 .  
     [0016] Each pair of posts  12  position the corresponding driven shaft  122 .  
     [0017] Each pair of first bearings  124  are disposed on the corresponding gear  121 .  
     [0018] Each driven shaft  122  passes through the corresponding generally S-shaped push plate  123 , the corresponding pair of first bearings  124 , and the corresponding gear  121 .  
     [0019] The first worm  112  engages with the corresponding gear  121 .  
     [0020] The second worm  113  engages with the corresponding gear  121 .  
     [0021] The rocking mechanism  2  has two rocking plates  21 , two pairs of second bearings  212 , two pivot shafts  211 , two controlling plates  23 , two expansion springs  24 , two chucks  215 , two hoops  214 , two roller wheels  217 , and two platforms  213 .  
     [0022] Each pair of pillars  22  position the corresponding pivot shaft  211 .  
     [0023] Each platform  213  is connected to the corresponding rocking plate  21 .  
     [0024] Each chuck  215  is disposed on the corresponding platform  213  to receive a plurality of rods  216 .  
     [0025] Each hoop  214  surrounds the corresponding chuck  215 .  
     [0026] Each expansion spring  24  is connected to the base panel A 1  and the corresponding controlling plate  23 .  
     [0027] Each pair of second bearings  212  are disposed on the corresponding rocking plate  21 .  
     [0028] Each driven shaft  122  passes through the corresponding pair of second bearings  212 , the corresponding rocking plate  21 , and the corresponding controlling plate  23 .  
     [0029] Each roller wheel  217  is disposed on a bottom of the corresponding rocking plate  21 .  
     [0030] When the motor  11  drives the first main shaft  111  and the second main shaft  111 ′ to rotate, the first worm  112  drives the corresponding gear  121  to rotate and the second worm  113  drives the corresponding gear  121  to rotate. Then each S-shaped push plate  123  pushes the corresponding roller wheel  217  to rotate so that the corresponding rocking plate  21  will rock.  
     [0031] When each S-shaped push plate  123  disengages from the corresponding roller wheel  217 , each expansion spring  24  will force the corresponding S-shaped push plate  123  to rotate to an opposite direction.  
     [0032] An outer casing A receives the automatic massage device.  
     [0033] The present invention has the following advantages. The automatic massage device pats a user automatically and conveniently. The automatic massage device pats the user safely. Since the bearings decrease a friction of the automatic massage device, the automatic massage device is suitable for a long period of usage. Each S-shaped push plate has a smooth curved shape in order to push the corresponding roller wheel smoothly.  
     [0034] The present invention is not limited to the above embodiment but various modification thereof may be made. Furthermore, various changes in form and detail may be made without departing from the scope of the present invention.