POWERFUL WAIST TWISTER

- Jao-Hsing Tsai

A powerful waist twister comprises mainly a handle bar, a post column and a twisting mechanism. The twisting mechanism is housed in a base casing with a top lid, in which two rotors, two spring elements, two rotor covers, a connecting rod, and a swing shaft are installed in the manner that each of two rotor seats, mounted along the sidewall of the base casing, receives one of two rotors which are further riveted on the base casing. The connecting rod links to both rotors with the central part pivoted to the swing shaft. The terminal end of the swing shaft is hooked with two spring elements which exert the reversible force to return the swing shaft back during the swing movement. The rotor seats produce a movement in the exactly opposite direction toward the movement of the handle bar, that means while the upper body moves in the right direction, the lower body will twist in the reverse direction to render the waist twisting and swinging movement.

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Description
FIELD OF THE INVENTION

[0001] This invention relates to a powerful waist twister which renders the waist a forced twist and swing, causing the upper body to move to one direction and the waist and hip to the reverse direction.

BACKGROUND OF THE INVENTION

[0002] On most gymnastic swing devices, while the body is swinging to one direction, the hands and legs follow the same direction, the swing range is not sufficient enough and the efficiency is so limited.

[0003] Viewing the inherent pitfalls the gymnastic swing device embraces, the inventor has devoted for years to the study and improvement on the swing device and come up with a novel waist twister with better mechanical structure and significant efficiency.

SUMMARY OF THE INVENTION

[0004] The major characteristics of the invention are that the novel powerful waist twister comprises mainly a handle bar, a column post and a twisting mechanism which is housed in the base casing and the top lid in which there mount two rotors, two spring elements, two rotor seats, a connecting rod and a swing shaft arranged in the manner where two rotor seats are sitting along the side wall of the base casing, each rotor seat will receive one of the rotors and the rotor seats are fixed on the base casing. The connecting rod links two rotors at its ends and pivots the swing shaft at the central part. The swing shaft also binds two spring elements at its one end. The spring elements act to return the swing shaft back during the swing operation. The handle bar and the rotor seats are moving in the opposite direction, causing the upper body and the lower body moving in the opposed direction, while the handle moves from right to left, the waist and hip swing or twist in the other direction.

[0005] The invention is expressed in great details with the aid of embodiments as illustrated in the attached drawings.

[0006] BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. 1 is the stereo outlook of this invention.

[0008] FIG. 2 shows the schematic diagram of disassembly of the twisting mechanism of the invention.

[0009] FIG. 3 shows the side view of the invention.

[0010] FIG. 4 is the cross section from 4-4 part of FIG. 1.

[0011] FIG. 5 is the schematic diagram of twisting mechanism of this invention.

[0012] FIG. 6 shows the operation status of the twisting mechanism of the invention.

[0013] FIG. 7 is the stereo schematic diagram (1) in operation of twisting mechanism of this invention.

[0014] FIG. 8 is the stereo schematic diagram (2) in operation of twisting mechanism of this invention.

[0015] FIG. 9 is another preferable embodiment of the twisting mechanism of the invention.

[0016] FIG. 10 is a dynamic status of the twisting mechanism from FIG. 9 of this invention.

[0017] FIG. 11 is another preferable embodiment of the twisting mechanism of the invention.

[0018] FIG. 12 is a dynamic status of the twisting mechanism from FIG. 11 of this invention.

DETAILED DESCRIPTION OF THE INVENTION

[0019] FIGS. 1 through 5 show the powerful waist twister of the invention, mainly comprising a handle bar 1, a column post 2 and a twisting mechanism 3 where the column post 2 is adjustable with the upper terminal connected to the handle bar 1 and the lower end locked to the twisting mechanism 3 via the swing shaft 35. The twisting mechanism 3 is housed in the base casing 31 and the top lid 37. Within the base casing 31, there rest two rotors 32, two spring elements 34, one connecting rod 33 and one swing shaft 35. The base casing 31 provides two rotor seats 311 to hold the rotors 32. As shown in FIG. 6, the rotors are longitudinal bearings 321, sitting in the circular grooves 3111 formed on surface of the rotor seats 311. The rotor cover 38 is pressed on the rotors 32. The rotor covers 38, the base casing 31, the rotor seats 311 and the joint 312 are united together to ensure the rotor covers 38 are able to rotate along the rotors 32.

[0020] As shown in FIGS. 5 through 8, each rotor cover is furnished an ear link 382 linked with the shank 331 of the connecting rod 33. Both ends of the connecting rod 33 unite with the shank 331, the central part pivots the swing shaft 35 and the lower part to one end of the spring elements 34 (where the spring is numbered 341). The spring 341 is hanged in herring form on the base casing 31, so does the swing shaft 35. It forms a pivot point permitting the swing shaft 35 to swing to forward and backward. The connecting post 36 of the swing shaft 35 works a pivot for the connecting rod 33 and the spring elements 34 to pivot around.

[0021] While the exercise taker is holding the handle bar 1 with two hands, with the soles standing on the rotor seats 38 of the twisting mechanism 3, the protrusions 381 of the rotor seats 38 will carry out the massage on the vital points of the soles. When the handle bar 1 is turned to right, the swing shaft 35, the connecting rod 33 and the shank 331 will force the rotor seats 38 to turn to the left. It is apparent at this moment, the upper body and the lower body move in the different direction. After the first force fades off, the spring 341 of the spring elements 34 fixed on the connecting rod 33 will return the twist mechanism back.

[0022] The spring elements 34 can be of a spring 341 or a elastic drawing strap 342 (as shown in FIGS. 11 and 12). Any material which provides recoil force shall serve the same effect.

[0023] Now please refer to FIGS. 9 and 10 in which, the rotors 32 is shaped into a rotary wheel 321′ sitting in the rotor seat 311 of the base casing 31. The rotary wheel 321′ provides a protruded lug 3211′ which penetrates the groove 331′ on both sides of the connecting rod 33′ protruding between the rotary wheels 321′. While the rotor cover 38 is rotated, the linkage of rotary wheel 321′, the swing shaft 35 and the connecting rod 33′ will cause the protruded lug 3211′ of the rotary wheel 321′ to move within the groove 331′. To prevent the connecting rod 33′ from derailing off the orbit, a slide track is outfitted along both sides to ensure its stability.

[0024] As shown in FIGS. 11 and 12, the rotors 32 can be further made into a geared wheel 321″, and a section of rack 331″ is formed on end section of the connecting rod 33″. The teeth on the geared wheel 321″ is closely married with the teeth 3211″ of the rack 331″. While the rotor cover 38 is rotated, the geared wheel 321″ will bring the connecting rod 33″ into motion.

[0025] As described above, the structure provided in this invention is the newest discovery. When the rotor cover is pressed by the sole, it triggers the massage of vital point under the foot. At the same time, when the handle bar is moved to left or right, the twisting mechanism produces a reverse motion, the swinging and twisting, a healthy action. The quality in novelty and progressiveness is superb justification for granting patent to this invention.

Claims

1. A powerful waist twister comprises mainly a handle bar, a post column and a twisting mechanism, the twisting mechanism is housed in a base casing with a top lid, in which two rotors, two spring elements, two rotor covers, a connecting rod, and a swing shaft are installed in the manner that each of two rotor seats, mounted along the sidewall of the base casing, receives one of two rotors which are further riveted on the base casing, the connecting rod links to both rotors with the central part pivoted to the swing shaft, the terminal end of the swing shaft is hooked with two spring elements which exert the recoil force to return the swing shaft back during the swing movement, the rotor seats produce a movement in the exactly opposite direction toward the movement of the handle bar, that means while the upper body moves in the right direction, the lower body will twist in the reverse direction to render the waist twisting and swinging movement.

2. The power waist twister of claim 1, wherein the spring element can be of a section of coil spring or a section of elastic strap.

3. The powerful waist twister of claim 1, wherein the rotors can be a longitudinal bearing.

4. The powerful waist twister of claim 1, wherein the rotors can be of a rotary wheel with a protruded lug extending out of the groove of the connection rod, while the rotors are rotating, the action of the protrude ear is confined with the groove so as to cause the connecting rod to act.

5. The powerful waist twister of claim 1, wherein the rotors can be of a geared wheel tied with the rack of the connecting rod, while the rotors are rotating, the teeth of the geared wheel move with the rack and cause the connecting rod to act.

Patent History
Publication number: 20030092546
Type: Application
Filed: Nov 13, 2001
Publication Date: May 15, 2003
Applicant: Jao-Hsing Tsai
Inventor: Hui-Nan Yu (Taoyuan)
Application Number: 09987059
Classifications
Current U.S. Class: Support For Entire Body Of User (e.g., Bench, Slant Board, Etc.) (482/142)
International Classification: A63B026/00;