FIELD OF THE INVENTION
The presented invention relates generally to portable sports exercising equipment, and particularly to the adjustable and portable all-muscle wrist power exercising rod.
BACKGROUND OF THE INVENTION
Wrist power is very impotent in racket games, especially in badminton. Every serious badminton player wishes to have a powerful wrist to perform a sudden and fast power smash. The wrist power of a good badminton player shows off during a smash is actually comes from forearm and fingers. Wrist itself does not have any muscles, it is just a joint that allows hand bending, swinging and rotating. All these wrist movements are controlled by the muscles in the forearm. Fingers provide the last control and power at the striking moment. Thus, to improve wrist power, one need to practice the muscles that control pronation and supination of forearm, flexion, abduction and rotation of wrist, and griping of fingers.
Commonly used portable wrist power exercising equipment includes wrist roller, grip-ball, hand griper, and forearm flexor griper. Wrist roller mainly exercises wrist flexion, wrist abduction, and griping strength by using a rod to roll up a string with a weight hanging on it. Grip-ball is a ball made of elastic material and is used to improve finger muscles and grip strength by squeeze the ball with one hand at a time. Hand griper is very similar to grip ball but use spring instead of elastic material. Forearm flexor griper, as it named, is used to exercise the forearm flexor. From above brief description, it is concluded that all these equipment are working on finger muscles and forearm flexor but does not particularly workout the muscles that control forearm pronation and supination which is the strongest wrist movement and actually contributes major power for forehand smash, forehand clear, backhand smash and backhand clear than wrist flexion in a badminton game.
BRIEF SUMMARY OF THE INVENTION
The invented “adjustable and portable all-muscle wrist power exercising rod” abbreviated as wrist power exercising rod.
The invented wrist power exercising rod provides a complete solution to practice all muscles involved for wrist power. Furthermore, it does not only make the muscles stronger but also enhance the blasting ability of the wrist and forearm. It is also adjustable to meet the requirements of different levels of exercising strength. Obviously, this new exercising equipment does not only benefits badminton players but also many other sports.
There are two exercising modes for the invented wrist power exercising rod: waving-mode and twisting-mode. In the waving-mode, an exerciser waves the wrist power exercising rod (by holding at the handle part 300 with one hand at a time) in certain patterns to exercise the muscles for pronation and supination of forearm, flexion, abduction and rotation of wrist. In the twisting-mode, an exerciser use both hands to twisting the twisting-assembly-1130 (as shown in FIG. 6) or the twisting-assembly-2140 (as shown in FIG. 7) forward and backward over and over again to exercise the muscles for finger griping and wrist bending.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to understand the features of the invention, a detailed description of the invention may be had by reference to certain embodiments, some of which are illustrated in the accompanying drawings. It is to be noted, however, that the drawings illustrate only certain embodiments of this invention and are therefore not to be considered limiting its scope, for the scope of the invention encompasses other equally effective embodiments. The drawings are not necessarily to scale, emphasis generally being placed upon illustrating the features of certain embodiments of the invention. In the drawings, like numerals are used to indicate like parts throughout various views. Thus, for further understanding of the invention, reference can be made to the following detailed description, read in connections with the drawings in which:
FIG. 1 is general illustration of one embodiment of the wrist power exercising rod.
FIG. 2 shows the means of change the length of the wrist power exercising rod by (a) screw adjusted head part and (b) slid adjusted head part.
FIG. 3 shows partial cross-sectional view of one embodiment that adjusting the torque of the wrist power exercising rod by using a screwing adjusted external weight piece.
FIG. 3.1 shows partial cross-sectional view of another embodiment that adjusting the torque of the wrist power exercising rod by using a slide-and-lock external weight piece.
FIG. 4 shows partial cross-sectional view of one embodiment that adjusting the torque of the wrist power exercising rod by using an adjusted internal weight piece.
FIG. 5 shows partial cross-sectional view (a) of another embodiment that adjusting the torque of the wrist power exercising rod by using an internal weight piece; and side cross-sectional view (b), (c) and (d) of different shape options of the weight piece.
FIG. 5.1 is the adjusting screw 412a and the screw stopper 412b which is used in the wrist power exercising rod shown in FIG. 5.
FIG. 6 shows partial cross-sectional view of an embodiment of the wrist power exercising rod that can be used for both waving-mode and twisting-mode.
FIG. 6.1 shows cross-sectional view of the twisting sleeve 132 that is used in the wrist power exercising rod shown in FIG. 6.
FIG. 6.2 is the spring-1131a or spring-2131b used in the wrist power exercising rod shown in FIG. 6.
FIG. 7 shows partial cross-sectional view of anther embodiment of the wrist power exercising rod that can be used for both waving and twisting exercising-modes.
FIG. 7.1 shows partial view (a), partial cross-sectional view at initial position (b), and partial cross-sectional view at a 90 degree rotated position (c) of the type II twisting assembly that used in the wrist power exercising rod shown in FIG. 7.
DISCLOSURE OF THE INVENTION
FIG. 1 schematically shows an embodiment of invented wrist power exercising rod which is used in the waving-mode. In this embodiment, the wrist power exercising rod comprises a tube shaped body part 100, a detachable head part 200 attached to one end of the body part 100, a handle part 300 attached to another end of the body part 100, and means of changing the torque of the wrist exercising rod. Either head part 200 or handle part 300 has option of being detached to load the body part 100 with heavy filling material such as sand, salt and heavy metal pieces for the purpose of changing the barycenter of the exercising rod thus changing the torque of the wrist power exercising rod during the waving-mode practice. FIG. 2 shows other different options of the head part 200 and handle part 300. FIG. 2(a) shows a sealed head part 201; FIG. 2(b) shows a length adjustable head part 203; and FIG. 2(c) shows an end sealed handle 301. The weight of the filling material determines the torque of the wrist power exercising rod when the rod is waved in an exercise pattern which is originated from wrist movement and powered by forearm muscles. It is commonly known that the torque is the tendency of a force to rotate an object about an axis or (a point). The value of the torque is the product of the distance from the barycenter of the object to the axis and the weight of the object. When one waves the rod by using the wrist and the forearm movement so that the trajectory of the head of the rod is a double-circular “∞” pattern, the weight material that filled inside the body of the wrist power exercising rod will be pulled to the head end by centrifugal force. Thus the torque of the wrist power exercising rod in wave-mode is roughly the product of the length of the rod and the weight of the loading plus the torque of the wrist power exercising rod without any loading of the filling material. Obviously, this torque can be easily changed by changing the amount of the filling material.
FIG. 3 schematically shows another embodiment of invented wrist power exercising rod which is used in the waving-mode. In this embodiment, the wrist power exercising rod comprises a tube shaped body part 101, a detachable head part 200 attached to one end of the body part 101, a handle part 300 attached to another end of the body part 101, a number of weight discs 210, and an external weight piece 400. The body part 101 has a screw thread on its surface so that the external weight piece 400 can be spirally moved along the body part 101 thus changes the barycenter of the wrist exercising rod. The means of changing the torque of the wrist exercising rod in this embodiment is thus realized. The weight discs 210 can be optionally removed or added into the head part 200 to extend the torque adjusting range.
FIG. 3.1 shows yet another embodiment similar to the structure as shown in FIG. 3. In this embodiment, the wrist power exercising rod comprises a tube shaped body part 100, a detachable head part 200 attached to one end of the body part 100, a handle part 300 attached to another end of the body part 100, a number of weight discs 210, and a weight assembly 410. The weight assembly 410 further comprises a sliding weight piece 411, an “O” ring 413, and a lock nut 412. The weight assembly 410 can be slid along the body part 100 to change the barycenter of the wrist power exercising rod and can be fixed at any desired position by tighten up the lock nut 412. The weight discs 210 can be optionally removed or added into the head part 200 to extend the torque adjusting range.
FIG. 4 schematically shows another embodiment of invented wrist power exercising rod which is used in the waving-mode. The means of changing the torque of the wrist power exercising rod in this embodiment is realized by an internal weight piece. In this embodiment, the wrist power exercising rod comprises a body part 102, a detachable head part 200 attached to one end of the body part 102, a handle part 300 attached to another end of the body part 102, a number of weight discs 210, an internal weight piece 422 and a weight piece lock screw 421. The internal weight piece 422 can be moved inside the body part 102 to change the barycenter of the wrist power exercising rod. The weight piece lock screw 421 is screwed on the internal weight piece 422 through a groove on the body part 102 and is used to fasten the internal weight piece 422 at a desired location.
FIG. 5 schematically shows another embodiment of invented wrist power exercising rod which is used in the waving-mode. The means of changing the torque of the wrist power exercising rod in this embodiment is realized by a screw adjusted weight piece. In this embodiment, the wrist power exercising rod comprises a body part 103, a detachable head part 202 attached to one end of the body part 103, a handle part 300 attached to another end of the body part 103, a number of weight discs 210, a screw adjusted weight piece 412c, screw stopper 412b, and an adjusting screw 412a. Rotating the adjusting screw 412a, the screw adjusted weight piece 412c can be moved inside the body part 103 to change the barycenter of the wrist power exercising rod. The non-circular cross-sectional shape of the screw adjusted weight piece 412c and the cross-sectional shape of the cavity of the body part 103 are made in a way (as shown in FIG. 5(a), (b), and (c)) so the screw adjusted weight piece 412c does not rotate inside the body part 103 when adjusting screw 412a is rotated to adjust the barycenter of the wrist power exercising rod. FIG. 5(a), (b), and (c) are examples of the cross-sectional shape of the screw adjusted weight piece 412c and the cross-sectional shape of the cavity of the body part 103. FIG. 5.1 further depictures the adjusting screw 412a, where the screw stopper 412b is a part that attached to the adjusting screw 412a and is used to prevent the adjusting screw been pulled out from the body part 103.
FIG. 6 schematically diagrams an embodiment of wrist power exercising rod with a twisting-assembly-1130 attached on it. With this attached twisting-assembly-1130, the wrist power exercising rod shown in FIG. 6 can be used in both waving-mode and twisting-mode. The twisting-assembly-1130 is attached on a waving-mode wrist power exercising rod with all the structure and the function remain the same as shown in FIG. 5 except the body part 103(in FIG. 5) is changed to a body part 104(in FIG. 6) which has a spring limit section 104a and a twisting-torque adjusting section 104b built on it. The twisting-assembly-1130 comprises a twisting sleeve 132, a spring-1131a, a spring-2131b, a tighten knob 133 and the twisting-torque adjusting section 104b. The twisting sleeve 132 further comprises an elastic tube 132a, a twist-handle-1132b, a twist-handle-2132c, and a twist handle cap 132d as shown in FIG. 6. The elastic tube 132a, which is connected to the twist-handle-1132b and twist-handle-2132c, is made of elastic material and is twistable. The spring-1131a is placed between the twist handle cap 132d and the spring limit section 104a and the spring-2131b is placed between the twist handle-1132b and the twisting-torque adjusting section 104b. There is a screw thread inside the twist-handle-2132c, so that the twisting sleeve can spirally rotates on the twisting-torque adjusting section 104b to press the spring-1131a or spring-2131b or both of them thus the elastic tube 132a is pre-stretched. The tighten knob 133 is used to fix the twisting sleeve 132 at a desired position on the twisting-torque adjusting section 104b. Once the twisting sleeve 132 is fixed at a desired position (which also means that the elastic tube 132a is pre-stretched by a desired tension), the twist-handle-1132b and the twist-handle-2132c are rotated by both hands in opposite rotating directions thus the elastic tube 130a is twisted similar to a towel is twisted to squeeze the water out. Repeatedly twisting the elastic tube 132a in alternated rotating directions can thus exercise the finger griping and wrist bending. The spring-1131a and the spring-2131b are helical springs (as shown in FIG. 6.2) and may have different or same lengths. When the position of the twisting sleeve 132 is adjusted on the twisting-torque adjusting section 104b toward the handle, the spring-1131a or the spring-2131b will be pressed first, then the other spring will be pressed after. The spring-1131a and the spring-2131b may have different or same spring constants. The spring constant represents the stiffness of a spring. The spring-1131a and the spring-2131b can be replaced by a single spring also as long as the spring limit section 104a is eliminated.
FIG. 7 illustrates another embodiment of wrist power exercising rod which can be used in both waving-mode and twisting-mode. The wrist power exercising rod in this embodiment comprises a twisting-assembly-2140 attached on a waving-mode wrist power exercising rod with all the structure and the function remain the same as shown in FIG. 5 except the body part 103(in FIG. 5) is changed to a body part 105(in FIG. 7) which has an adjusting section 105a built on it. The twisting-assembly-2140 further comprises a twist handle 140a, a stretcher holder 140b, a stretcher 140c, a strainer 140d, and the adjusting section 105a. Detailed structure of twisting-assembly-2140 is shown in FIG. 7.1. The adjusting section 105a is a section on the body part 105; part of this section has screw thread that matches the screw thread in the strainer 140d so that the position of the strainer 140d can be spirally adjusted on the adjusting section 105a; the rest part of this section where has no screw thread functions as a twisting handle. One end side of the adjusting section 105a that near the middle position of the exercising rod has an inclined step (as shown in FIG. 7.1(b) and (c)) and the twist handle 140a has an inclined end plane at one end that matches the inclined step of the adjusting section 105a. When the body part 105 and the twist handle 140a are rotated in opposite directions (from the original relaxed position as shown in FIG. 7.1(b)) by a less than 180 degrees of absolute rotated angle, the stretcher holder 140b, will be pushed away from the strainer 140d due to the opposite movement of the inclined step and the inclined end plane. The maximum push away distance is d/tanθ, where d is dimeter of the twist handle 140a and θ is the inclined angle (as shown in FIG. 7.1(b)). As the stretcher holder 140b is pushed away from the strainer 140d, the stretcher 140c which is connected to the stretcher holder 140b and the strainer 140d is stretched. The stretcher mentioned above is a device that can be stretched like a rubber band or a spring or anything have same function. In FIG. 7.1(c), the situation of a 90 degrees rotation and thus ½ d/tanθ of the push away is illustrated. The effort needed for this twist and push away is determined by the strength of the stretcher 140c, the inclined angle(θ), and the preset location of the strainer 140d. This effort determines the exercising strength of the twisting mode and is adjustable by setting the location of the strainer 140d.
As used herein, a part or function recited in the singular and proceeded with the word “a” or “an” should be understood as not excluding plural said parts or functions, unless such exclusion is explicitly recited. Furthermore, references to “one embodiment” or “another embodiment” of the claimed invention should not be interpreted as excluding the existence of additional embodiments that also incorporate the recited features.
This written description uses examples to disclose the invention and also to enable any person skilled in the art to practice the invention, including making and using any assembly or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the claims, or if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural parts with insubstantial differences from the literal language of the claims.
Patent Application
20180264316
