Patent Publication Number: US-2021169734-A1

Title: Method of suppressing vibration upon hand

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the priority of Taiwanese patent application No. 108145172, filed on Dec. 10, 2019, which is incorporated herewith by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention generally relates to a method of suppressing vibration, and more specifically to a method of suppressing vibration of a mechanical device imposing upon at least one human hand holding the mechanical device utilizing the fixing pin, the upper metal washer, the upper suppressing washer, the lower suppressing washer, and the lower metal washer to form the vibration-suppressing unit, and employing the vibration-suppressing units to collocate with a fixing rack to fix the actuating part onto the massage body, the upper vibration-suppressing washer and the lower vibration-suppressing washer stacked together specifically designed to have the same elasticity modulus, the two adjacent upper vibration-suppressing washers having different elasticity modulus, the two spaced away but not adjacent upper vibration-suppressing washers having the same elasticity modulus, thereby implementing the effect of absorbing vibration strength because of the two adjacent upper vibration-suppressing washers with different elasticity modulus vibrating asynchronously, and suppressing and alleviating the vibration level to hand due to counterforce. 
     2. The Prior Arts 
     Generally, it is a common disease for people that muscles are easily fatigue, sore, or pain, especially for those who do not instantly exercise or keep a bad posture for a long time. Thus, many devices are developed to alleviate muscular fatigue, sore, or pain. One of the most popular and widely used is a massager. 
     The conventional massage vibrates by means of a massage head driven by an electric motor using vibration force. The user holds the massager and aligns the massage head to the target portion of human body for massage. Thus, counterforce generated by the massager is directly imposed upon the human hand holding the massager. Since the massager is usually heavy due to the built-in motor and battery pack, the human hand is possibly liable to fatigue after a long time of operation, or other portions of human body like fingers, wrists, and arms potentially suffers from chronic and physical hurt. 
     Therefore, it is greatly needed to provide a new method of suppressing vibration upon human hand employing the vibration-suppressing units with different vibration suppressing effect and installing the vibration-suppressing units at specific locations to mounting an actuating part onto a case for suppressing original vibration level and protecting hand, thereby overcoming the above problems in the prior arts. 
     SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide a method of suppressing vibration upon human hand, comprising the steps S 10 , S 20 , S 30  S 40 , S 50 , S 60 , S 70 , S 80 , and S 90  sequentially performed for suppressing vibration of a mechanical device imposing upon at least one human hand holding the mechanical device. 
     Specifically, the step S 10  is performed by preparing a massage body and a holding part. The massage body has a plurality of accommodating parts, and each accommodating part is provided with an accommodating hole. Further, the number of the accommodating parts is an even integer not less than four, and that is, at least four accommodating parts are prepared. In the step S 20 , a transfer bar, a rotation plate, a rotation axis, and a motor are prepared, and then the step S 30  is performed by preparing a fixing rack having a ring part, a center hole, and a plurality of fixing wings. Further, the number of the fixing wings is an even integer not less than four, and that is, at least four fixing wings are prepared. The ring part surrounds the center hole, and the fixing wings are placed on the ring part and outwards extending away from the center hole. Each fixing wing is provided with a fixing hole. 
     In the step S 40 , a plurality of vibration-suppressing units are prepared, and each vibration-suppressing unit comprises a fixing pin, an upper metal washer, an upper suppressing washer, a lower suppressing washer, and a lower metal washer. Further, the fixing pin comprises a metal screw with a screw nut, and each of the upper metal washer, the upper suppressing washer, the lower suppressing washer, and the lower metal washer is provided with a center through hole. 
     Next, the step S 50  is performed by assembling the transfer bar, the rotation plate, the rotation axis, and the motor to form an actuating part. Specifically, the transfer bar is eccentrically and rotatably connected to the rotation plate, the rotation plate is further connected to the rotation axis, and the rotation axis is further connected to the motor. In the step S 60 , the fixing rack is placed and installed by placing the fixing wings in the accommodating parts, and the fixing hole of the fixing wing aligns the accommodating hole of the accommodating part. The step S 70  is then performed by employing the vibration-suppressing units and the fixing rack to fix the actuating part onto the massage body. Specifically, the fixing pin sequentially penetrates the center holes of the upper metal washer and the upper vibration-suppressing washer, the fixing hole of the fixing wing, and the center holes of the lower vibration-suppressing washer and the lower metal washer from top to bottom. Thus, the fixing pin is fixedly accommodated in the accommodation hole to fix the actuating part onto the massage body. 
     The step S 80  is performed by electrically connecting the motor and a battery. Finally in the step S 90 , the massage body and the holding part are connected together to form a case, and the case, the actuating part, the battery, the fixing rack, the vibration-suppressing units are thus assembled to form a massage gun. In addition, the massage gun is intended for inserting into a massage head, and the actuating part contacts and drive massage head to generate the reciprocal massage motion. 
     Moreover, the upper vibration-suppressing washer and the lower vibration-suppressing washer have the same elasticity modulus, the upper vibration-suppressing washers of the two adjacent vibration-suppressing units have different elasticity modulus, and the upper vibration-suppressing washers of the two vibration-suppressing units not adjacent but spaced away have the same elasticity modulus. It is preferred that the two adjacent upper vibration-suppressing washers have a ratio of elasticity modulus between 1:0.2 and 1:0.9. 
     In addition, another object of the present invention is to provide a method of suppressing vibration upon human hand, also comprising the steps S 10 , S 20 , S 30  S 40 , S 50 , S 60 , S 70 , S 80 , and S 90  sequentially performed for suppressing vibration of a mechanical device imposing upon at least one human hand holding the mechanical device. However, the upper vibration-suppressing washer and the lower vibration-suppressing washer have different elasticity modulus, the upper vibration-suppressing washers of the two adjacent vibration-suppressing units have different elasticity modulus, and the upper vibration-suppressing washers of the two vibration-suppressing units not adjacent but spaced away have the same elasticity modulus. Further, the lower vibration-suppressing washers of the two adjacent vibration-suppressing units have different elasticity modulus, but the lower vibration-suppressing washers of the two vibration-suppressing units not adjacent but spaced away have the same elasticity modulus. It is preferred that the two adjacent upper vibration-suppressing washers have a ratio of elasticity modulus between 1:0.2 and 1:0.9, and the two adjacent lower vibration-suppressing washers have a ratio of elasticity modulus between 1:0.2 and 1:0.9. 
     Therefore, the present invention assembles the fixing pin, the upper metal pad, the upper suppressing pad, the lower suppressing pad, and the lower metal pad to form a vibration-suppressing unit, and employs the vibration-suppressing units in collocation with a fixing rack to fix the actuating part onto the massage body. In particular, the upper vibration-suppressing washer and the lower vibration-suppressing washer stacked together are specifically designed to have the same elasticity modulus, the two adjacent upper vibration-suppressing washers have different elasticity modulus, and the two spaced away but not adjacent upper vibration-suppressing washers have the same elasticity modulus. As a result, the two adjacent upper vibration-suppressing washers with different elasticity modulus vibrate asynchronously due to different vibration amplitude or frequency to interfere with each other so as to implement the effect of absorbing vibration strength like vibration amplitude and reduce the original rigid vibration, thereby suppressing and alleviating the vibration level to hand due to counterforce. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention can be understood in more detail by reading the subsequent detailed description in conjunction with the examples and references made to the accompanying drawings, wherein: 
         FIG. 1  is a flowchart showing the method of suppressing vibration upon human hand according to the embodiment of the present invention; 
         FIG. 2  is a view showing the vibration-suppressing unit employed in the method according to the embodiment of the present invention; 
         FIG. 3  is a view showing one application example for the method according to the embodiment of the present invention; and 
         FIG. 4  is a view showing the fixing rack in the application example for the method according to the embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The present invention may be embodied in various forms and the details of the preferred embodiments of the present invention will be described in the subsequent content with reference to the accompanying drawings. The drawings (not to scale) show and depict only the preferred embodiments of the invention and shall not be considered as limitations to the scope of the present invention. Modifications of the shape of the present invention shall too be considered to be within the spirit of the present invention. 
     Please refer to  FIG. 1  illustrating the flowchart illustrating the method of suppressing vibration upon human hand according to the embodiment of the present invention. As shown in  FIG. 1 , the method of suppressing vibration upon human hand comprises the steps S 10 , S 20 , S 30  S 40 , S 50 , S 60 , S 70 , S 80 , and S 90  sequentially performed for suppressing vibration of a mechanical device like a hand-holding massager imposing upon at least one human hand holding the mechanical device. 
     To further clear describe the features and aspects of the present invention, please also refer to  FIGS. 2, 3, and 4 . Specifically,  FIG. 2  is a view showing the vibration-suppressing unit employed in the method according to the embodiment of the present invention,  FIG. 3  is a view showing one application example for the method according to the embodiment of the present invention; and  FIG. 4  is a view showing the fixing rack in the application example for the method according to the embodiment of the present invention. 
     As shown in  FIGS. 1, 2, 3, and 4 , the method of suppressing vibration upon human hand according to the embodiment of the present invention begins at the S 10  to prepare a massage body  20 A and a holding part  20 B. The massage body  20 A has a plurality of accommodating parts  21 , and each accommodating part  21  is provided with an accommodating hole  21 A. Further, the number of the accommodating parts  21  is an even integer not less than four, and that is, at least four accommodating parts  21  are prepared. It is preferred that the accommodating hole  21 A is a screw hole. Then the step S 20  is performed by preparing and assembling a transfer bar  31 , a rotation plate  32 , a rotation axis  33 , and a motor  34 . In the step S 30  a fixing rack  40  is prepared, and has a ring part  41 , a center hole  42 , and a plurality of fixing wings  43 . Further, the number of the fixing wings  43  is an even integer not less than four, and that is, at least four fixing wings  43  are prepared. The ring part  41  surrounds the center hole  42 , and the fixing wings  43  are placed on the ring part  41  and outwards extending away from the center hole  42 . Each fixing wing  43  is provided with a fixing hole  44 . 
     Subsequently, the step S 40  is performed, and a plurality of vibration-suppressing units  10  are prepared, each vibration-suppressing unit  10  comprising a fixing pin  11 , an upper metal washer  12 , an upper suppressing washer  13 , a lower suppressing washer  14 , and a lower metal washer  15 . Preferably, the fixing pin  11  comprises a metal screw with a screw nut, and each of the upper metal washer  12 , the upper suppressing washer  13 , the lower suppressing washer  14 , and the lower metal washer  15  is provided with a center through hole (not shown). 
     In the step S 50 , the transfer bar  31 , the rotation plate  32 , the rotation axis  33 , and the motor  34  are assembled to form an actuating part  30 . Specifically, the transfer bar  31  is eccentrically and rotatably connected to the rotation plate  32  like an eccentric and rotatable manner, the rotation plate  32  is further connected to the rotation axis  33 , and the rotation axis  33  is further connected to the motor  34 . For instance, the above eccentric and rotatable manner means that the transfer bar  31  is placed at an eccentric location with respect to a center point of the rotation plate  32 , that is, away from the circular center of the rotation plate  32 , such that t the transfer bar  31  is driven by the rotation plate  32  to generate the reciprocal motion as desired. 
     In the step S 60 , the fixing rack  40  is placed and installed by placing the fixing wings  43  in the accommodating parts  21  of the massage body  20 A, and the fixing hole  44  of the fixing wing  43  aligning the accommodating hole  21 A of the accommodating part  21 . Then, the step S 70  is performed by employing the vibration-suppressing units  10  and the fixing rack  40  to fix the actuating part  30  onto the massage body  20 A. Specifically, the fixing pin  11  of the vibration-suppressing unit  10  sequentially penetrates the center holes of the upper metal washer  12  and the upper vibration-suppressing washer  13 , the fixing hole  44  of the fixing wing  43 , and the center holes of the lower vibration-suppressing washer  14  and the lower metal washer  15  from top to bottom. 
     In the step S 80 , the motor  34  is electrically connected to a battery  35 , and the step S 90  is finally performing by connecting the massage body  20 A and the holding part  20 B to form a case  20 . Thus, a massage gun D comprising the vibration-suppressing units  10 , the case  20 , the actuating part  30 , the battery  35 , the fixing rack  40  is assembled. For example, the massage body  20 A and the holding part  20 B are connected by means of lock-fixing or insertion-fixing to form the case  20 . In addition, the massage gun D is intended for inserting into a massage head  50 , and the actuating part  30  contacts and drive massage head  50  to generate the reciprocal massage motion, thereby implementing a massage function. Furthermore, the motor  34  is powered by the battery  35  to rotate the rotation axis  33 , the rotation axis  33  further rotates the rotation plate  32 , the transfer bar  31  is driven by the rotation plate  32  to perform the reciprocal motion, and the reciprocal motion drives the massage head  50  to generate the reciprocal massage motion. 
     More specifically, the upper vibration-suppressing washer  13  and the lower vibration-suppressing washer  14  have the same elasticity modulus, the upper vibration-suppressing washers  13  of the two adjacent vibration-suppressing units  10  have different elasticity modulus, and the upper vibration-suppressing washers  13  of the two vibration-suppressing units  10  not adjacent but spaced away have the same elasticity modulus. It is preferred that the two adjacent upper vibration-suppressing washers  13  have a ratio of elasticity modulus between 1:0.2 and 1:0.9. 
     Further, the upper vibration-suppressing washers  13  have the same thickness, the lower vibration-suppressing washers  14  also have the same thickness, and the upper metal washer  12  and the lower metal washer  15  have the same or different elasticity modulus, depending on actual applications. 
     Moreover, another embodiment of the present invention proves the method of suppressing vibration upon human hand, also comprising the steps S 10 , S 20 , S 30 , S 40 , S 50 , S 60 , S 70 , S 80 , and S 90  to employ the fixing pin  11 , the upper metal washer  12 , the upper suppressing washer  13 , the lower suppressing washer  14 , and the lower metal washer  15  to form the vibration-suppressing unit  10  so as to protect human hand. However, the primary difference from the previous embodiment is that the material features of the upper suppressing washer  13  and the lower suppressing washer  14  are different, and particularly, the upper suppressing washer  13  and the lower suppressing washer  14  have different elasticity modulus. 
     In addition, the upper vibration-suppressing washers  13  of the two vibration-suppressing units  10  not adjacent but spaced away have the same elasticity modulus. Further, the lower vibration-suppressing washers  14  of the two adjacent vibration-suppressing units  10  have different elasticity modulus, and the lower vibration-suppressing washers  14  of the two vibration-suppressing units  10  not adjacent but spaced away have the same elasticity modulus. It is preferred that the two adjacent upper vibration-suppressing washers  13  have a ratio of elasticity modulus between 1:0.2 and 1:0.9, and the two adjacent lower vibration-suppressing washers  14  have a ratio of elasticity modulus between 1:0.2 and 1:0.9. Since other elements have the features as the previous embodiment, the related description is omitted hereinafter. It should be noted that the primary feature of the present invention is to employ the vibration-suppressing unit  10  comprising a fixing pin  11 , an upper metal washer  12 , an upper suppressing washer  13 , a lower suppressing washer  14 , and a lower metal washer  15  to achieve the effect of suppressing vibration to protect human hand. 
     From the above mention, the aspect of the present invention is that the fixing pin, the upper metal washer, the upper suppressing washer, the lower suppressing washer, and the lower metal washer are assembled to form the vibration-suppressing unit, and the vibration-suppressing units are in collocation with a fixing rack to fix the actuating part onto the massage body. Further, the upper vibration-suppressing washer and the lower vibration-suppressing washer stacked together are specifically designed to have the same elasticity modulus, the two adjacent upper vibration-suppressing washers have different elasticity modulus, and the two spaced away but not adjacent upper vibration-suppressing washers have the same elasticity modulus. As a result, the two adjacent upper vibration-suppressing washers with different elasticity modulus vibrate asynchronously due to different vibration amplitude or frequency to interfere with each other so as to implement the effect of absorbing vibration strength like vibration amplitude and reduce the original rigid vibration, thereby suppressing and alleviating the vibration level to hand due to counterforce. 
     Although the present invention has been described with reference to the preferred embodiments, it will be understood that the invention is not limited to the details described thereof. Various substitutions and modifications have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.