Abstract

A chainring installation structure includes a crank, a spindle, and a swing assembly. The spindle includes a first rotational axis, and one end of the spindle is connected to the crank. The crank drives the spindle to cause the spindle to rotate about the first rotational axis. The swing assembly is disposed at one end of the spindle adjacent to the crank without contacting the crank. The swing assembly can shift axially relative to the spindle. The swing assembly includes a second rotational axis that crosses the first rotational axis, in which the swing assembly can rotate about the second rotational axis.

IPC Classes  ?

• B62M 3/00 - Construction of cranks operated by hand or foot
• F16D 3/16 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
• B62M 1/36 - Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
• F16D 3/22 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
• B62M 9/00 - Transmissions characterised by use of an endless chain, belt, or the like
• F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part

Abstract

A drive chain includes a plurality of outer plates, inner plates and pins. Each outer plate has two outer pivoting holes and two first protruding surfaces. A virtual line connecting the centers of the outer pivoting holes of each outer plate is defined as a first major axis. Each inner plate has two inner pivoting ends and a first protruding portion. A virtual line connecting the centers of the two inner pivoting holes of each inner plate is defined as a second major axis. The first protruding portion has a second protruding surface. Each pin is threaded through two inner plates and two outer plates. An included angle is formed between the first and second major axes. The first protruding surface contacts and overlaps the second protruding surface to form an overlapping region whose area decreases as the included angle decreases.

IPC Classes  ?

• F16G 13/06 - Driving-chains with links connected by parallel driving-pins with or without rollers
• B62M 9/00 - Transmissions characterised by use of an endless chain, belt, or the like

Abstract

An electronic rear derailleur includes a driving unit, a gearbox, a base portion, and a derailleur portion. The gearbox includes a biasing member, a first power gear, a second power gear, a first passive gear, and a second passive gear. The first power gear connects with the driving unit. Force is transmitted from the first power gear to the second power gear through the biasing member. The second power gear meshes the first passive gear and the second passive gear. The first passive gear and the second passive gear are respectively used to allow relative rotation between the gearbox and the derailleur portion with respect to the base portion, whereby the chain of a bicycle can be moved to engage with different sprockets to achieve the purpose of shifting.

IPC Classes  ?

• B62M 9/122 - Rear derailleurs electrically or fluid actuated; Controls thereof
• B62M 9/1244 - Mechanisms for shifting laterally limiting or positioning the movement
• B62M 9/124 - Mechanisms for shifting laterally
• B62M 9/00 - Transmissions characterised by use of an endless chain, belt, or the like

Abstract

An embedded handle and handle structure of the embedded handle for a bicycle are provided. The handle structure includes the embedded handle and a stem. The embedded handle includes two holding portions and a joining portion. The middle of the joining portion has a depression. The depression has a connecting portion, and the stem has an engaging portion. The handlebar further includes a handle mounting hole. And the engaging portion of the stem further includes a first mounting hole and a second mounting hole. When the engaging portion engages with the depression, the first mounting hole, the second mounting hole and the handle mounting hole are aligned. The first fastener is inserted into the aligned holes, and the second fastener is inserted into the aligned holes along a direction opposite to the first fastener and joined to the first fastener.

IPC Classes  ?

• B62K 21/12 - Handlebars; Handlebar stems
• B62K 3/00 - Bicycles

Abstract

An electronic shifting device and a bicycle using the same are provided. The electronic shifting device includes a primary controller, a first electronic derailleur unit, a second electronic derailleur unit, a cable, a main power supply and a first control unit. The first electronic derailleur unit is disposed adjacent to a first sprocket set, and the second electronic derailleur unit is disposed adjacent to a second sprocket set. The first electronic derailleur unit and the second electronic derailleur unit are configured to move a chain between a plurality of sprockets. The cable electrically connects the primary controller, the first electronic derailleur unit and the second electronic derailleur unit. The main power supply provides electrical power to the primary controller, the first electronic derailleur unit and the second electronic derailleur unit by the cable. The first control unit is configured for wirelessly transmitting a first control signal to the primary controller.

IPC Classes  ?

• B62M 1/36 - Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
• B62K 23/06 - Levers
• B62M 25/00 - Actuators for gearing speed-change mechanisms specially adapted for cycles
• B62M 25/08 - Actuators for gearing speed-change mechanisms specially adapted for cycles with electrical or fluid transmitting systems
• B62M 9/122 - Rear derailleurs electrically or fluid actuated; Controls thereof

Abstract

A detachable chainring assembly includes a first chainring, a second chainring and a locking part. The first chainring includes a first through hole. The second chainring includes a first surface, a second surface, a driven hole, and a plurality of first protrusion parts. The second surface is opposite to the first surface. The driven hole runs through the first surface and the second surface for securing a driving portion of a crank arm. The first protrusion parts protrude from the second surface and are disposed around the driven hole, and at least one of the first protrusion parts has a first locked hole. The locking part is detachably secured to the first through hole and the first locked hole such that the first chainring and the second chainring are jointly secured to each other via the locking part.

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• F16H 55/30 - Chain wheels

Abstract

A bicycle component fastening device includes a bicycle component body having a beam, a first adjusting element, a second adjusting element and a fastening element. The first adjusting element has a first assembly end and is fixedly coupled with the beam. The second adjusting element is coupled with the beam and has a second assembly end and an operating element. The operating element drives the second adjusting element to move towards or away from the first adjusting element. The fastening element has a first assembly portion engaging the first assembly end and a second assembly portion engaging the second assembly end. When the operating element drives the second adjusting element to move close to the first adjusting element, part of the second assembly end slips out of the second assembly portion such that the fastening element moves away from the beam.

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B62K 21/12 - Handlebars; Handlebar stems
• B62K 23/06 - Levers