Patent Publication Number: US-2020289864-A1

Title: Multifunctional fitness device with grip strength training mode

Description:
CROSS-REFERENCE TO RELATED U.S. APPLICATIONS 
     Not applicable. 
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not applicable. 
     NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT 
     Not applicable. 
     REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC 
     Not applicable. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an exercise fitness device, and more particularly to an innovative multifunctional fitness device with grip strength training mode. 
       2 . Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98. 
     At present, there are many kinds of exercise fitness devices available on the market, and the exercise fitness device targeted by the present invention is mainly related to the hand muscle exercise fitness function. 
     The current exercise fitness devices with hand muscle exercise fitness functions are mainly the wrist developer and clasp-hands device; however, the current structural design of these exercise fitness devices is generally more suitable for users with strong muscle strength, but difficult for other numerous people with relatively weak muscle strength (such as seniors, children and postoperative rehabilitation). For example, the aforementioned exercise fitness devices such as wrist developers and clasp-hands devices still have practical difficulties in practical use, high difficulty and difficulty in generating a sense of accomplishment, and difficulty in continuing to attract use and other disadvantages and problems. Based on this point, how to develop a exercise fitness device that is easier to use and more diverse in function is an important technical issue, which is worthy of continuous attention in the relevant industry. 
     BRIEF SUMMARY OF THE INVENTION 
     The present invention mainly aims to provide a multifunctional fitness device with grip strength training mode, and the technical problem to be solved aims at how to develop a new type of fitness device structure which is more ideal and practical for innovation breakthrough. 
     Based on the foregoing objective, the present invention provides a multifunctional fitness device with grip strength training mode, it comprises: a spiral elastic part, which is a spiral rod type, and the two opposite ends thereof extend in different directions respectively to form two convex stretch sections; the two bent rod grips are respectively connected to the spiral elastic part, and each of the bent rod grips comprises a bent rod and a soft sleeve covering the outside of the bent d rod, the bent rod has a connecting end, a tail end and a bent section between the connecting end and the tail end, wherein the connecting end is integrally extended from the spiral elastic part to the corresponding convex stretch section, the bent section is in a U-shaped reversely folded state to form a void part therein, and forms an arrangement relationship in which the connecting end and the tail end are adjacent to each other, and forms a corresponding relationship of a connecting end of one of the bent rod grips and the tail end of the other bent rod grips; a hood component is assembled outside the spiral elastic part, and the hood component includes a first housing and a second housing that are combined with each other in a relative screwing relationship, and the first housing and the second housing are provided respectively with a convex stretch pipe, for which the two convex stretch sections of the spiral elastic part pass through; and the angle between the bent sections of the two bent rod grips is 30°-80°; the contour formed by the connecting end, bent section and tail end of the bent rod grip is smaller than the grip range of the adult palm. 
     With this innovative and unique design, the present invention can provide the user with a variety of functions of the fitness device according to the prior art, and the practical application can provide a palm movement mode of the two-handed control, or the grip movement can be operated simultaneously by two hands or one hand, or the opening and closing force application movement of other parts of the body can be operated. Besides, it is also suitable for use as a reclining stand for handheld electronic device, thereby providing the practical advancement and better industrial utilization. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  is a three-dimensional outside view of the preferred embodiment of the present invention. 
         FIG. 2  is a three-dimensional perspective view of the preferred embodiment of the present invention. 
         FIG. 3  is a front view of the preferred embodiment of the present invention. 
         FIG. 4  is a sectional view of local structure of the preferred embodiment of the present invention  1 . 
         FIG. 5  is a sectional view of local structure of the preferred embodiment of the present invention  2 . 
         FIG. 6  is a use status diagram of the preferred embodiment of the present invention  1 . 
         FIG. 7  is a use status diagram of the preferred embodiment of the present invention  2 . 
         FIG. 8  is a use status diagram of the preferred embodiment of the present invention  3 . 
         FIG. 9  is a use status diagram of the preferred embodiment of the present invention  4 . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to  FIG. 1-5  for the preferred embodiments of the multifunctional fitness device with grip strength training mode of the present invention, but the embodiments are for illustrative purposes only, and the patent application is not limited by this structure. 
     The multifunctional fitness device A comprises the following parts: a spiral elastic part  10 , which is a spiral rod type, the two opposite ends of which extend in different directions to form two convex stretch sections  11 ; two bent rod grips  20  are connected to the spiral elastic part  10 , each bent rod grip  20  includes a bent rod  21  and a soft sleeve  22  wrapped around the outside of the bent rod  21  (may be, but not limited to, plastic foaming or rubber material), wherein the bent rod  21  comprises a connecting end  211 , a tail end  212  and a bent section  213  between the connecting end  211  and the tail end  212 , wherein the connecting end  211  is integrated and extended with corresponding convex stretch section  11  from the spiral elastic part  10 , the bent section  213  shows a U-shaped reversed shape and forms a void part  214  therein, and forms an arrangement relationship between the connecting end  211  and the tail end  212 , and forms a corresponding relationship between the connecting end  211  of one bent rod grips  20  and another bent rod grip  20  of the tail end  212 ; hood component  30 , a hood component  30  is assembled and wrapped at the outside of the spiral elastic part  10 , the hood component  30  includes a first housing  31  and a second housing  32  which are combined with each other in a relative screwing relationship, and the first housing  31  and one second housings  32  are respectively provided with a convex stretch pipe  33  for that two convex stretch sections  11  of the spiral elastic part  10  pass through; and wherein there is an included angle X between the bent section  213  of the two bent rod grips  20  (as shown in  FIG. 3 ), the included angle X is 30°-80°; and as shown in  FIG. 8 , the contour formed by the connecting end  211 , the bent section  213  and the tail end  212  of each of the bent rod grips  20  must be smaller than the grip range of the adult palm. 
     With the above structural composition and technical features, the multifunctional fitness device A disclosed in the present invention has various functions in practical use, and further enumerated as follows: first, as shown in  FIGS. 6-7 , because an included angle X (as shown in  FIG. 3 ) between the bent section  213  of the two bent rod grips  20  is an acute angle between 30° and 80°, therefore, the user can use two hands to hold both sides of the bent section  213  of the two bent rod grip  20  (note: because the figure is a lateral viewing angle, so only the left hand is seen), and then the opening and closing action of the grip strength is performed. (as indicated by Arrow L 1 ), in this action, since the user use two hands to apply the force synchronously, the difficulty of operation is relatively low even for a group of people with weak muscle strength (such as seniors, child, postoperative rehabilitation). It does not cause a sense of rejection, and the sense of accomplishment is relatively high and easy to use continuously; as shown in  FIG. 8 , the multifunctional fitness device A can also provide the user with a clasp-hands type exercise (as indicated by Arrow L 2 ), and the user can open the palms of the hands respectively to grasp the opposite outside of the bent section  213  of two bent rod grips  20 , and then perform a opening and closing exercise of a clasp-hands type, which can exercise the muscles of the palm, wrist and arm; as also shown in  FIG. 9 , the multifunctional fitness device A can provide a exercise fitness function, and can also be placed on a table at one side with the bent rod grip  20  as a base, at this time, because the bent section  213  of the two bent rod grips  20  is in an acute angle, so that the bent rod grip  20  on the other side of the upward direction, the bent curved shape formed by the bent section  213  is just suitable as a reclining stand for a handheld electronic device  40  (such as smart phone, tablet computer, etc.); in addition, the multifunctional fitness device A can also provide the user with exercise of other modes, for example, it is placed between the user&#39;s left and right thighs for closing and opening exercise, or placed between the forearm and the waist of the user for closing and opening exercise, or the single hand is gripped on the same side of the two bent rod grips  20  for grip strength exercise, all are the exercise fitness modes applied in the present invention, that is, not listed one by one; as can be seen from the above description, compared with the existing wrist builders, such as clasp-hands fitness device and arm fitness device, the multifunctional fitness device A is greatly improved in affinity and is more suitable for the general consumers. 
     As shown in  FIG. 5 , in this example, the width W 1  of the bent section  213  with a U-shaped reverse-folded part is greater than the width W 2  of the connecting end  211  and the tail end  212 ; the advantage of the embodiment disclosed in this example is that the part of the bent section  213  with a U-shaped reversed shape has a relatively wide area, so that when the user wants to perform the clasp-hands exercise as disclosed in  FIG. 8 , it can provide a shape suitable for the palm of the user to grasp; or, when the multifunctional fitness device A provides the reclining stand for the handheld electronic device  40  (such as a smart phone, tablet computer, etc.) as disclosed in  FIG. 9 , a stable placement area can be obtained. 
     As shown in  FIG. 5 , in this example, the first housing  31  and the second housing  32  of the hood component  30  are respectively provided with a ring groove  34  and a ring flange  35 , the ring flange  35  is embedded into the ring groove  34  in a loosely fitted state, so that the first housing  31  and the second housing  32  are rotatable relative to each other; thereby, when the two bent rod grips  20  are forced to generate relative the opening and closing movement, the first housing  31  and the second housing  32  can be rotated accordingly.