Chair-rotating control mechanism applied to sport apparatus

Abstract

Chair-rotating control mechanism applied to sport apparatus, wherein driven gear sector is to drive the connected eccentric shaft to rotate, chair pivoted with an eccentric shaft is driven by rotating shaft of pedal or decelerating motor, or both of them move together as power source, this control mechanism can be applied to bicycle, exercising bicycle and AB chair to control rotation of chair, so that it can turn around waist and hip of rider when riding on it to do exercise.

1 . Chair-rotating control mechanism applied to sport apparatus as follows:
 Sleeve which is installed on bracket, bearing is respectively embedded into two ends of this sleeve;   Eccentric shaft, its top is pivoted with chair and lower section extends downward to become relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve.   Chair which is pivoted with top of eccentric shaft, so that user can move around along with chair but not rotate together with eccentric shaft.   Driven gear sector which is connected to relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate;   Rotating shaft of pedal, an auxiliary sprocket wheel is fixed on this shaft;   Main shaft which fixes gear sector and sprocket wheel, and connect sprocket wheel with this auxiliary sprocket wheel with chain so that this gear sector meshes with driven gear sector;   Therefore, rotating shaft of pedal drives main shaft to rotate, gear sector drives driven gear sector to rotate, and then drives eccentric shaft to rotate, so that chair can move in circle, user can exercise his/her hip and waist at the same time when riding such bicycle.   
   
   
       2 . Chair-rotating control mechanism applied to sport apparatus as follows:
 Sleeve which is installed on bracket, bearing is respectively embedded with two ends of this sleeve;   An eccentric shaft, its top is pivoted with one chair and lower section extends downward and become relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve.   Chair which is pivoted with top of eccentric shaft, so that user can move in circle along with chair while eccentric shaft is rotating but not rotate together.   Driven gear sector which is connected with this relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate;   Rotating shaft of pedal, an auxiliary sprocket wheel is fixed on this shaft;   Main shaft which fixes gear sector, sprocket wheel and main gear wheel, and connects sprocket wheel and this auxiliary sprocket wheel with chain so that this gear sector meshes with driven gear sector;   Decelerating motor which connects transmission gear wheel and meshes with main gear;   Therefore, rotating shaft of pedal or decelerating motor drives main shaft to rotate, meanwhile, gear sector is to drive driven gear sector to rotate, that then rotate eccentric shaft, so, chair may move in circle. Chair is driven by rotating shaft of pedal and decelerating motor, or only decelerating motor automatically drives chair to turn round.   
   
   
       3 . Chair-rotating control mechanism applied to sport apparatus as follows:
 Sleeve which is installed on bracket, bearing is respectively embedded with two ends of this sleeve;   Eccentric shaft, its top is pivoted with chair and lower section extends downward and become one relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve.   Compressed spring which is covered onto axial runner of relay shaft and is positioned between sleeve and driven gear sector;   Chair which is pivoted with top of eccentric shaft, so that user can move in circle along with chair while eccentric shaft is rotating but not rotate together.   Driven gear sector which is connected with this relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate; and ring groove, which is fixed on this driven gear sector to insert splint;   Rotating shaft of pedal, auxiliary sprocket wheel is installed on it;   Main shaft which fixes gear sector, sprocket wheel and main gear wheel, and connects sprocket wheel and this auxiliary sprocket wheel with one chain, so that this gear sector meshes with driven gear sector;   Decelerating motor which connects transmission gear wheel and meshes with main gear wheel;   First clutch assembly which is composed of splint, fixing lever, spring, adjuster, board, it is fixed at where can control driven gear sector, the splint is inserted into ring groove of driven gear sector, adjuster is to control this driven gear sector so that driven gear sector can mesh with or drop off gear sector;   Second clutch assembly which is composed of fixing seat, limit lever, spring, adjuster and hook fixed on pivot seat of decelerating motor, adjuster controls pivot seat to sway with pivot shaft as axis, so that transmission gear meshes with or drop off main gear;   Therefore, rotating shaft of pedal or decelerating motor can simultaneously or respectively drive driven gear sector to rotate eccentric shaft, then apply first clutch assembly to control driven gear sector to drop off gear sector of main shaft, so that chair can turn round automatically with eccentric shaft as axis. Also apply second clutch assembly to control transmission gear of decelerating motor to drop off main gear of main shaft, thus, rotating shaft of pedal can move driven gear sector, so, user can turn around hip and waist at the same time while rotating shaft of pedal.   
   
   
       4 . As claimed in  claim 1 ,  2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein axial runner is made in lower part of screw thread of eccentric shaft, and axial track matching axial runner is made in Peg-in-Hole of driven gear sector, so that this axial track can be embedded into this axial runner, driven gear sector can move upward/downward within this axial runner. 
   
   
       5 . As claimed in  claim 1 ,  2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein one relay sleeve can be fixed on top of this sleeve, which is also connected with relay shaft, eccentric shaft can be embedded into this relay sleeve for flexing, then lock this relay sleeve with lock bolt so that it leans against this eccentric shaft, eccentric chair is thereby adjusted according to height of user. 
   
   
       6 . As claimed in  claim 1 ,  2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein chair is pivoted with eccentric shaft, adjust seat is fixed at top of eccentric shaft, and shaft lever is assembled at bottom of chair, with support of shaft collars connecting to front of adjust lever, this shaft lever embedded into this shaft collars can let chair rotate freely, furthermore, this adjust lever can be embedded into from two ends of adjust seat, which can adjust distance between chair and eccentric shaft, then pass fixing bolt through adjust seat to position adjust lever, so that eccentric shaft can be adjusted properly as required when driven. 
   
   
       7 . As claimed in  claim 1 ,  2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein features of the structure to connect driven gear sector and relay shaft as follows:
 Axial track (runner) is made in hole of this driven gear sector;   This relay shaft, axial runner (track) is fixed matching this axial track (runner).   Therefore, axial runner (track) of this relay shaft is embedded into axial track (runner) of driven gear sector's hole, so that driven gear sector can move upward/downward in axial runner (track) of this relay shaft, which can drive eccentric shaft to rotate.   
   
   
       8 . As claimed in  claim 2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein the decelerating motor is fixed at pivot seat, and this pivot seat is pivoted to this bracket with pivot shaft, moreover, fixing seat also is fixed at this pivot seat, which can fix 2 nd  clutch assembly, so that pivot seat can drive decelerating motor to sway forward/backward. 
   
   
       9 . As claimed in  claim 3 , it is chair-rotating control mechanism applied to sport apparatus, wherein spring can cover onto axial runner of relay, so that the compressed spring is positioned between nut and driven gear sector, which will be compressed and reset by driven gear sector. 
   
   
       10 . As claimed in  claim 3 , it is chair-rotating control mechanism applied to sport apparatus, wherein the first clutch assembly is comprised by following components:
 Splint which is inserted into ring groove set between compressed spring and driven gear sector;   Fixing lever is fixed at terminal of this splint;   Spring is covered onto this fixing lever and fixed on the board, so that this spring is positioned between splint and board.   Adjuster, its guide rope fastens this board, and rope collars coating this guide rope is limited within this splint with one bolt and positioned between fixing lever and relay shaft of driven gear sector;   Thus, this adjuster can adjust its guide rope and control splint to push upward compressed spring or release driven gear sector, so that this driven gear sector can move up/down in axial runner of relay shaft with above said axial track, so, driven gear sector can drop off or mesh with gear sector, therefore, user can select power source at will.   
   
   
       11 . As claimed in  claim 3 , it is chair-rotating control mechanism applied to sport apparatus, wherein the second clutch assembly is comprised by following components:
 Pivot seat where one fixing seat is fixed properly.   Limit lever which passes through this fixing seat and fixes on hook;   Spring which covers onto limit lever;   Adjuster is to fasten the guide rope to this hook, and rope collar of this guide rope is positioned at this fixing seat with one bolt;   Thus, adjuster is to adjust guide rope and bolt is to strain or loose the guide rope so as to control this pivot seat to sway with pivot shaft as axis, transmission gear thereby drop off or mesh with main gear.   
   
   
       12 . As claimed in  claim 1 , it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism is applicable to bicycle and exercising bicycle. 
   
   
       13 . As claimed in  claim 2 ,  3 , it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism is applicable to exercising bicycle. 
   
   
       14 . As claimed in  claim 2 , it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism can also be applicable to AB chair if not equipped with auxiliary sprocket and rotating shaft of pedal.