Patent ID: 9187147
Filing Date: 2015-11-17
Classification: B25B,B62K,B62M,Y10T

Abstract:
1. A synchronously controlling device for a bicycle, comprising: a bottom bracket tube having a first side, a second side and an axis; a first crank arranged at the first side of the bottom bracket tube; a second crank arranged at the second side of the bottom bracket tube; an actuating subassembly comprising a first side, a second side, a central control seat, a driving element, a first actuating rod and a second actuating rod, wherein the central control seat is fixed to the bottom bracket tube, wherein the driving element drives the actuating rods to move, wherein the first and second actuating rods are capable of moving axially along the bottom bracket tube, wherein the actuating subassembly is arranged at the bottom bracket tube; a first transmission subassembly comprises a first transmission fixing seat and a first transmission rod, wherein the first transmission fixing seat is fixed on the first crank, and wherein the first transmission rod is capable of moving axially along the bottom bracket tube, wherein the first transmission subassembly is arranged at the first side of the actuating subassembly; a second transmission subassembly comprises a second transmission fixing seat and a second transmission rod, wherein the second transmission fixing seat is fixed on the second crank, and wherein the second transmission rod is capable of moving axially along the bottom bracket tube, wherein the second transmission subassembly is arranged at the second side of the actuating subassembly; and a first controlling ring arranged between the actuating subassembly and the first transmission subassembly to rotationally connect the actuating subassembly and the first transmission subassembly, wherein the first controlling ring is fixedly connected to an end of the first transmission rod, or the first controlling ring is fixedly connected to an end of the first actuating rod, such that a driving action of the actuating subassembly is conveyed via the first transmission rod at the end of the first crank through the first controlling ring; a second controlling ring arranged between the actuating subassembly and the second transmission subassembly to rotationally connect the actuating subassembly and the second transmission subassembly, wherein the second controlling ring is fixedly connected to an end of the second transmission rod, or the second controlling ring is fixedly connected to an end of the second actuating rod, such that the driving action of the actuating subassembly is conveyed via the second transmission rod at the end of the second crank through the second controlling ring; wherein a trajectory of the first and second controlling rings is parallel to the axis of the bottom bracket tube; wherein the first transmission subassembly is arranged on the first crank and is capable of rotating relative to the actuating subassembly; wherein the second transmission subassembly is arranged on the second crank and is capable of rotating relative to the actuating subassembly; wherein the driving action of the actuating subassembly is output synchronously from the first and second transmission subassemblies through the first and second controlling rings; wherein the first transmission subassembly further comprises a first retaining spring, wherein the first retaining spring is arranged between the first transmission fixing seat and the first transmission rod to retain the first transmission rod at a predetermined position relative to the first crank; wherein the second transmission subassembly further comprises another first retaining spring, wherein the another first retaining spring is arranged between the second transmission fixing seat and the second transmission rod to retain the second transmission rod at a predetermined position relative to the second crank; and wherein the actuating subassembly further comprises two second springs, wherein one of the two second springs is arranged between the first actuating rod and the central control seat to retain the first controlling ring at a predetermined position relative to the central control seat, and another one of the two second springs is arranged between the second actuating rod and the central control seat to retain the second controlling ring at a predetermined position relative to the central control seat.