Patent Publication Number: US-11382825-B2

Title: Massage roller mechanism

Description:
BACKGROUND OF INVENTION 
     Field of Invention 
     The present invention relates to a massage mechanism, and more particularly to a massage roller mechanism. 
     Description of the Related Art 
     In modern life, people are under various stress and are easily suffer body aches. Therefore, various massage devices are employed to massage different parts of the body to ease the body tension. The general massage devices are divided into a body massage device such as a massage chair, a massage bed, etc., and a partial massage device such as a shoulder-neck massage belt, a waist massage belt or a calf and foot massage machine, etc. All of them employ rollers, airbags or vibration to generate mechanical press on corresponding body parts to relieve the tension of the muscles. 
     However, the current massage chairs, massage beds or lower limb massage devices all have complex massage mechanisms, which cause the equipment to be bulky, and it is difficult to place and store. The massage wheels or massage arms of the massage mechanisms described above uses rigid shaft and rocking arm to drive the massage beans, which cannot be adjusted according to the user&#39;s body shape and curve. The fixed massage angle cannot provide conforming effect to different users, which easily cause pain and discomfort to the user. 
     Therefore, it is desirable to provide a massage roller mechanism to mitigate and/or obviate the aforementioned problems. 
     SUMMARY OF THE INVENTION 
     An objective of present invention is to provide a massage roller mechanism, which is capable of improving the above-mention problems. 
     In order to achieve the above mentioned objective, A massage roller mechanism has two round disks and a plurality of massaging units between the two round disks, a shaft connecting the two round disks, a plurality of through apertures evenly and respectively disposed around the shaft on the two round disks. The massaging unit utilizes an elastic band to connect a plurality of massage beans, and the massaging units are secured onto each through aperture between the two round disks via the elastic band. 
     Other objects, advantages, and novel features of invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view of a preferred embodiment according to the present invention. 
         FIG. 2  is an exploded view of the preferred embodiment according to the present invention. 
         FIG. 3  is a local detail of the massage roller of the preferred embodiment according to the present invention. 
         FIG. 4  is a cross-sectional view of the preferred embodiment according to the present invention. 
         FIG. 5  is a schematic view showing a user sitting on the preferred embodiment according to the present invention. 
         FIG. 6  is another schematic view showing a user sitting on the preferred embodiment according to the present invention. 
         FIG. 7  is another schematic view showing a user sitting on the preferred embodiment according to the present invention. 
         FIG. 8  is a schematic diagram showing the user lying down on the preferred embodiment according to the present invention. 
         FIG. 9  is another schematic diagram showing the user lying down on the preferred embodiment according to the present invention. 
         FIG. 10  is another schematic diagram showing the user lying down on the preferred embodiment according to the present invention. 
         FIG. 11  is a cross-sectional view showing the massage roller massaging the leg portion according to the present invention. 
         FIG. 12  is a cross-sectional view showing t the massage roller massaging the heel and ankle according to the present invention. 
         FIG. 13  is the preferred embodiment according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     First, please refer to  FIGS. 1-4 . A massage roller mechanism  10  comprises two round disks  11  and a plurality of massaging units  12  between the two round disks  11 . A shaft  111  connects the two round disks  11  at their center, and a plurality of through apertures  112  are evenly and respectively disposed around the shaft  111  on the two round disks  11 . The massaging unit  12  utilizes an elastic band  121  to connect a plurality of massage beans  122 , and the massaging units  12  are secured onto each through aperture  112  between the two round disks  11  via the elastic band  12 . Each side of the two round disks  11  of the massage roller  10  is provides with an outer disk  13 . 
     The massage roller  10  is employed in a massage device. Please refer to  FIGS. 1-4  again. The rotatable leg massage device comprises: a base  20  and a swinging arm  30 . Two sides of the base  20  are each provided with a foot stand  21 , and the base  20  further has two opposing assembling posts  22  and a limiting baffle  23  behind and between the two assembling posts  22 . The limiting baffle  23  is U-shaped, and a highest point of the limiting baffle  23  is lower than the two assembling posts  22  such that the swinging arm  30  is able to have a rotation angle larger than 90° relative to the base  20 . The swinging arm  30  has a massaging end  21  and a swinging end  32 . The massaging end  31  end provided with a respective massaging roller  23  on two sides. The two massaging rollers  10  are both covered by a cloth cover  14 . The massaging end  31  further comprises a first motor  24 , the first motor  33  drives a central shaft  31  to rotate with the shaft  111  of the two massaging rollers  10  together. The swinging end  32  is disposed between the two assembling posts  22  of the base  20 , and a second motor  34  is disposed between the swinging end  32  and the two assembling posts  22  and configured to drive the swinging arm around the base. The second motor  34  is mounted in the swinging end  32  of the swing arm  20 , and both ends of the second motor  34  have a shaft rod  341  passing through the swinging end  32  and engaged with the two assembling posts  22 . The second motor  34  drive the swinging arm  30  to rotate around the base  20 . 
     Moreover, a first limit switch  24  is mounted in front of the two assembling posts  22  of the base  20 , a second limit switch  26  is mounted on the swinging arm  30  adjacent the swinging end  32 , and the first and second limit switches  14 ,  26  are both are electrically connected to the second motor.  25 . 
     For structural assembly and operation, please refer to  FIGS. 1-4  again. The massaging end  31  of the swinging arm  30  is rotated by the first motor  33  and drives the two massaging rollers  10  to rotate, the swinging end  32  of the swinging arm  30  is provided with the second motor  34 , and the swinging end  32  is mounted between the two assembling posts  22  of the base  20  and the limiting baffle  23 . Since the second motor  34  is fixed on the swinging end  32  and the two shaft rods  251  passing through the swinging end  32  are fixed to the sides of the two assembling posts  22 . When the two shaft rods  251  are fixed, the second motor  34  operates with the shaft rod  341  as the axis to drive the swinging arm  30  to swing between the two assembling posts  22 . The first limit switch  24  is disposed in front of the two assembling posts  22  of the base  20  and the swinging arm  30  has the second limit switch  35  on its outside, when the swinging arm  30  is driven by the second motor  34  and swinging forward and to touch the first limit switch  24  of the base  20 , the second switch  35  is activated to make the second motor  34  to rotate reversely to swing the swinging arm  30  in the opposite direction. Conversely, when the swinging arm  30  swings back and touches the limiting baffle  23  with the second limit switch  35 , the second motor  34  is switched back to a forward rotation and causing the swinging arm  30  to swinging forward toward the front of the base  20 . Therefore, the swinging arm  30  accomplishes reciprocating swing movements, and the massaging rollers  10  of the massaging end  31  provide the massage effect of the lower limbs. Moreover, the limiting baffle  23  is lower than the two assembling posts  22 , which allows the swinging arm  30  to have a swing angle greater than 90 degrees on the base  20  and greatly increases the massage range for the lower limbs. 
     In addition, the previous switching method of the second motor  34  by using the limit switch is only one of the preferred embodiment of the present invention, and is not limited thereto, it can also be accomplished by setting a predetermined numbers of rotation of the second motor  34 , other sensing switches or gyroscopes for the switching, etc. to provide the switching effect for the rotation direction of the second motor  34 . 
     When the above structure is actually operated, as shown in  FIGS. 5, 6  and  7 , the user sits on a chair, the massage device is placed in front of the chair, and user&#39;s feet are placed on the swinging arm  30 . When the first motor  33  and the second motor  34  are simultaneously activated, the two massaging rollers  10  are rotated by the first motor  33  and massage the lower limb muscles via the massaging unit  233 , while the swinging arm  30  moves with the second motor  34 , and the two massaging rollers  10  of the massaging end  31  massages along the feet, ankles, calves, back of the knees and thighs to achieve a lower limb circulation massage. Furthermore, when the calves are been massaged, the feet can be lifted up to relax the leg muscles, which greatly enhances the massage effect. 
     Secondly, the first motor  33  and the second motor  34  are connected to a controller (not shown), and the power of the first motor  33  can be controlled by the controller to adjust the speed of the two massaging rollers  10  and the massage force. The controller can also be used to control the second motor  34  to be on or off, and by fixing the angle of the swinging arm  30  to provide a fixed-point massage at the sole of the foot, the calf muscle, the muscle of the back of the knee or the thigh muscle. 
     In addition, when the massage mechanism is used, the angle of the swinging arm  30  can be adjusted freely, so the user can have the lower limb be massaged while lying down or sleeping. Please also refer to the  FIGS. 8, 9 and 10 , when the swinging arm  30  is brought up by the second motor  34  to form a raised state, the leg can be supported upwards and higher than the heart, which helps the blood return to the heart and the lungs for oxygen to help leg muscles to rest and relax, and then the massaging rollers  10  massage the muscle to eliminate soreness, fatigue and other discomforts for better blood circulation. 
     In summary, the massage device with the massage roller  10  mainly provides the massage effect to lower limbs, but it can also provide massage to upper limbs. When the massage roller  10  is driven by the first motor  33 , please also refer to  FIGS. 11, 12, and 13 , each massaging unit  12  of the massage roller  10  utilizes the elastic band  121  to hold a plurality of the massage beans  122  between the two round disks  11  to provide cushioning effect to allow the massaging unit  12  to be deformed according to the curve of the human body curve to and achieve better massage effect. On the other hand, the massage beans  122  gently press on the muscles or bones which reduces the pain and discomfort during the massage process and helps to improve the comfort of the massage. 
     The swinging arm  30  can be swung to the bottom to be horizontal with the base  20 , which greatly reduces the volume of the massage device for easy storage. 
     Although the present invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of invention as hereinafter claimed.