Patents by Inventor Szu-Fang Tsai
Szu-Fang Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20160272282Abstract: A dual control lever includes a fixed base, a brake lever, a pivot lever, a first electrical button, a second electrical button, a third electrical button and a fourth electrical button. The brake lever is pivoted on the fixed base. The pivot lever is rotatably close to the brake lever. The first electrical button is disposed on the pivot lever. The second electrical button disposed on the pivot lever. The third electrical button is disposed on the fixed base. The fourth electrical button is disposed on the fixed base.Type: ApplicationFiled: September 14, 2015Publication date: September 22, 2016Inventor: Szu-Fang TSAI
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Publication number: 20160272269Abstract: A bicycle front fork assembly includes a stem and a front fork. The front fork includes a fork crown, a first fork leg and a second fork leg. The stem is connected to the fork crown. The top end of the first fork leg and the second fork leg are connected to the two ends of the fork crown, respectively. The bottom end of the first fork leg and the second fork leg are connected to two ends of a hub which are opposite to each other, respectively. A disk brake rotor has a center coaxially connected to one end of the hub close to the first fork leg. A disc brake caliper is partially disposed within an accommodating recess formed on a surface of the first fork leg facing the second fork leg and close to the disk brake rotor.Type: ApplicationFiled: August 6, 2015Publication date: September 22, 2016Inventors: SZU-FANG TSAI, CHIA-WEN HSIEH
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Patent number: 9394029Abstract: The present invention provides a bicycle disc brake apparatus comprising a U-shape elastic plate having two ends connected to two ring portions; the ring portions comprising through holes; the U-shape elastic plate comprising two brake pads abutting the ring portions; two compression discs outside the U-shape elastic plate and adjacent to the ring portions, comprising protrusions penetrating the through holes to act on the brake pads, compression disc rotating slots away from the protrusions and first guiding tread surface in a first direction; two roller seats adjacent to the compression discs and comprising roller rotating slots adjacent to the compression disc rotating slots; rollers provided between the rotating slots; the roller rotating slots having second guiding tread surface in a second direction opposite to the first direction with protruding columns; two bearings mounted on the protruding columns; and two sealing gaskets sealed onto the bearings away from the roller seats.Type: GrantFiled: April 17, 2013Date of Patent: July 19, 2016Inventor: Szu-Fang Tsai
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Publication number: 20160107723Abstract: A derailleur includes a fixed component, a movable component, a linkage component, a deceleration component and a drive component. The fixed component is for being fixed to a bicycle frame. The movable component is for being fixed to a chain guide. The linkage component includes a first linkage and a second linkage. Two ends of the first linkage pivot on the fixed component and the movable component, respectively. Two ends of the second linkage pivot on the fixed component and the movable component, respectively. The deceleration component includes a circular spline, a flex spline and a wave generator. The flex spline is disposed inside the circular spline, for rotating the first linkage and the second linkage relative to the fixed component. The wave generator is disposed inside the flex spline. The drive component is connected to the wave generator, for rotating the wave generator.Type: ApplicationFiled: May 11, 2015Publication date: April 21, 2016Inventor: Szu-Fang TSAI
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Patent number: 8904648Abstract: A cutting device includes a first part and a second part which is pivotably connected to the first part. A first fixing portion is located in the top side of the first part. The second part has a second fixing portion defined in the underside side thereof and facing the top side of the first part. The second fixing portion is located corresponding to the first fixing portion. A reception slot is defined axially in the second part and communicates with the second fixing portion and the underside of the second part. A blade is inserted into the reception slot. A hole is defined through the first part for receiving a hydraulic hose. A pressing member is pivotably located in a recess in one side of the first part and is able to press the hydraulic hose passing through the hole and the recess.Type: GrantFiled: August 10, 2012Date of Patent: December 9, 2014Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Publication number: 20140230598Abstract: A brake adapter for a bicycle brake is provided with a bent, rigid tube including a plurality of transverse holes communicating with interior of the bent, rigid tube; and a plurality of rollers rotatably disposed in the transverse holes respectively. Both ends of each transverse hole are smaller than both ends of each roller respectively.Type: ApplicationFiled: April 29, 2014Publication date: August 21, 2014Applicant: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Publication number: 20140225364Abstract: A quick-mounting pipe structure comprises a first tubular fitting, a coupling sleeve, and a hose assembly. The first tubular fitting includes a locking ball. The coupling sleeve is formed with an inner annular protrusion and internal threads at an inner surface thereof. The hose assembly includes a hose and a second tubular fitting. The second tubular fitting is formed with an annular raised portion, an annular recessed portion, and external threads on its outer surface. The second tubular fitting can be inserted into the first tubular fitting to allow the locking ball to be retained in the annular recessed portion of the second tubular fitting. Additionally, the coupling sleeve can be threadedly engaged with the second tubular fitting, thereby providing additional attachment between the first tubular fitting and the second tubular fitting to prevent the second tubular fitting from being pulled out of the first tubular fitting under excessive force.Type: ApplicationFiled: April 17, 2013Publication date: August 14, 2014Applicant: TEKTRO TECHNOLOGY CORPORATIONInventor: SZU-FANG TSAI
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Publication number: 20140224595Abstract: The present invention provides a bicycle disc brake apparatus comprising a U-shape elastic plate having two ends connected to two ring portions; the ring portions comprising through holes; the U-shape elastic plate comprising two brake pads abutting the ring portions; two compression discs outside the U-shape elastic plate and adjacent to the ring portions, comprising protrusions penetrating the through holes to act on the brake pads, compression disc rotating slots away from the protrusions and first guiding tread surface in a first direction; two roller seats adjacent to the compression discs and comprising roller rotating slots adjacent to the compression disc rotating slots; rollers provided between the rotating slots; the roller rotating slots having second guiding tread surface in a second direction opposite to the first direction with protruding columns; two bearings mounted on the protruding columns; and two sealing gaskets sealed onto the bearings away from the roller seats.Type: ApplicationFiled: April 17, 2013Publication date: August 14, 2014Applicant: TEKTRO TECHNOLOGY CORPORATIONInventor: SZU-FANG TSAI
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Publication number: 20140124305Abstract: The present invention relates to a control-by-wire hydraulic brake structure of bicycle, which includes a caliper portion that is coupled to two brake shoes that are opposite to and spaced from each other; and a transmission portion, which has an end connected to the caliper portion to control the operation of the two brake shoes of the caliper portion and includes a fluid reservoir, a piston, and a transmission arm. The piston is movably received in the fluid reservoir. The transmission arm has an end pivotally connected to an end of the fluid reservoir that is distant from the caliper portion. The piston has an end that is connected to a predetermined location between two ends of the transmission arm. The transmission arm has an end that is distant from the pivotal connection with the fluid reservoir and is operatively coupled to a brake wire.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: TEKTRO TECHNOLOGY CORPORATIONInventor: Szu-Fang Tsai
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Patent number: 8657077Abstract: A cantilever brake of bicycle is provided with a triangular cable stop including first, second and third corner attachments and a wheel between the first and second corner attachments; a first pivot member including a first trough; a first cable passing through the first corner attachment, the wheel, and the second corner attachment to be fastened at the first pivot; a second pivot member including a second trough; a second cable having one end fastened in the third corner attachment and the other end fastened in the second pivot member; a first brake arm releasably pivotably secured to the first trough and including two opposite first projections and a spring actuated first adjustment knob distal the first projections; and a second brake arm releasably pivotably secured to the second trough and including two opposite second projections and a spring actuated second adjustment knob distal the second projections.Type: GrantFiled: March 5, 2012Date of Patent: February 25, 2014Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Patent number: 8659405Abstract: A wireless-control lighting device includes a control switch module mounted on a braking handle set, and a lighting displaying unit mounted on a bicycle and having a wireless receiver, a plurality of indicators and a second power supply. The control switch module includes a switch element, a circuit board, a wireless superconductor IC and a first power supply. The switch element and the wireless superconductor IC are electrically connected to the circuit board. The first power supply provides power to the circuit board and the wireless super conductor. When the switch element is working, and the wireless superconductor IC emits an actuating signal. The wireless receiver, the indicators and the second power supply are electrically connected to one another. The second power supply provides power to the wireless receiver and the indicators. The wireless receiver receives the actuating signal which accordingly actuates the operation of the indicators.Type: GrantFiled: March 24, 2011Date of Patent: February 25, 2014Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Patent number: 8651245Abstract: A bicycle brake unit includes a first arm, a second arm and a connector, when the brake cable is pulled, the first and second cable connectors on the two arms are moved toward each other to pivot the first and second arms. The first rail on the first arm and the second rail on the second arm are moved relative to each other via the rotation of the pivot. The pivot is movable in the elongate slot in the connector which is pivotably connected to the first and second arms. The first and second arms are pivoted toward each other to brake the wheel by the brake pads on the two arms. The first and second arms apply even forces to the two brake pads.Type: GrantFiled: August 9, 2012Date of Patent: February 18, 2014Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Publication number: 20140041969Abstract: A bicycle brake unit includes a first arm, a second arm and a connector, when the brake cable is pulled, the first and second cable connectors on the two arms are moved toward each other to pivot the first and second arms. The first rail on the first arm and the second rail on the second arm are moved relative to each other via the rotation of the pivot. The pivot is movable in the elongate slot in the connector which is pivotably connected to the first and second arms. The first and second arms are pivoted toward each other to brake the wheel by the brake pads on the two arms. The first and second arms apply even forces to the two brake pads.Type: ApplicationFiled: August 9, 2012Publication date: February 13, 2014Inventor: Szu-Fang Tsai
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Publication number: 20140041175Abstract: A cutting device includes a first part and a second part which is pivotably connected to the first part. A first fixing portion is located in the top side of the first part. The second part has a second fixing portion defined in the underside side thereof and facing the top side of the first part. The second fixing portion is located corresponding to the first fixing portion. A reception slot is defined axially in the second part and communicates with the second fixing portion and the underside of the second part. A blade is inserted into the reception slot. A hole is defined through the first part for receiving a hydraulic hose. A pressing member is pivotably located in a recess in one side of the first part and is able to press the hydraulic hose passing through the hole and the recess.Type: ApplicationFiled: August 10, 2012Publication date: February 13, 2014Inventor: Szu-Fang Tsai
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Patent number: 8622181Abstract: A brake operating device of an electric bicycle is provided with a brake lever including a projecting plate at one end, and a bifurcated cable anchoring member pivotably secured to the projecting plate; a magnetic member adhered to one side of the cable anchoring member; a housing pivotably secured to the brake lever and including a hydraulic cylinder and a cylindrical socket including an opening distal the brake lever, and internal threads proximate the opening; a spring depressible sensor including a sensing member disposed in the socket, and an electric wire extending from the sensing member; a hollow threaded fastener adjustably threadedly secured to the internal threads of the socket to engage the sensing member; and a cylindrical member releasably mounted proximate to the opening and secured to the fastener. The electric wire passes the fastener and leaves the housing.Type: GrantFiled: March 1, 2012Date of Patent: January 7, 2014Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Patent number: 8608354Abstract: A remote control for bicycle headlight and rear light is provided a dome including an opening; an actuation member including a resilient button disposed through the opening, and a flange extending outwardly from the button to engage an inner surface of the dome; a controller including a control unit, a switch on the control unit and engaging the button, and a transmitter within the control unit; a battery engaging the control unit; and a bracket including a clamp and a seat at one end of the clamp, the seat releasably secured to the dome together to receive the actuation member, the controller, and the battery. The bracket is mounted on a handlebar by threadedly securing the clamp to a brake lever. A pressing of the button electrically connects the battery to the control unit so as to activate the transmitter to send out an IR light pulse.Type: GrantFiled: April 16, 2012Date of Patent: December 17, 2013Assignee: Tektro Technology CorporationInventor: Szu-Fang Tsai
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Publication number: 20130270315Abstract: An adaptable bottle cage attachable to a frame tube of a bicycle is provided with a clip including a hanging plate and two parallel latching arms; a bracket including an upper aperture, a lower aperture, and two intermediate studs releasably secured to the hanging plate; a support integrally formed with a bottom end of the bracket; a first curved strut having a bottom end integrally formed with one end of the support distal the bracket and a top end integrally formed with one of two sides of the bracket; and a second curved strut having a bottom end integrally formed with one end of the support distal the bracket and a top end integrally formed with the other side of the bracket. The bottle cage can hold one of different water bottles with various sizes in position.Type: ApplicationFiled: April 11, 2012Publication date: October 17, 2013Inventor: Szu-Fang Tsai
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Publication number: 20130272004Abstract: A remote control for bicycle headlight and rear light is provided a dome including an opening; an actuation member including a resilient button disposed through the opening, and a flange extending outwardly from the button to engage an inner surface of the dome; a controller including a control unit, a switch on the control unit and engaging the button, and a transmitter within the control unit; a battery engaging the control unit; and a bracket including a clamp and a seat at one end of the clamp, the seat releasably secured to the dome together to receive the actuation member, the controller, and the battery. The bracket is mounted on a handlebar by threadedly securing the clamp to a brake lever. A pressing of the button electrically connects the battery to the control unit so as to activate the transmitter to send out an IR light pulse.Type: ApplicationFiled: April 16, 2012Publication date: October 17, 2013Inventor: Szu-Fang Tsai
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Publication number: 20130228406Abstract: A brake operating device of an electric bicycle is provided with a brake lever including a projecting plate at one end, and a bifurcated cable anchoring member pivotably secured to the projecting plate; a magnetic member adhered to one side of the cable anchoring member; a housing pivotably secured to the brake lever and including a hydraulic cylinder and a cylindrical socket including an opening distal the brake lever, and internal threads proximate the opening; a spring depressible sensor including a sensing member disposed in the socket, and an electric wire extending from the sensing member; a hollow threaded fastener adjustably threadedly secured to the internal threads of the socket to engage the sensing member; and a cylindrical member releasably mounted proximate to the opening and secured to the fastener. The electric wire passes the fastener and leaves the housing.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Inventor: SZU-FANG TSAI
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Publication number: 20130228405Abstract: A brake operating device of an electric bicycle is provided with a brake lever; a housing comprising a pivot portion pivotably secured to the brake lever, a hydraulic cylinder, a piston disposed in the hydraulic cylinder and having one end connected to the brake lever, a spring depressible magnet disposed in the hydraulic cylinder and having one end adhered to the other end of the piston, and a cylindrical socket adjacent to and parallel to the hydraulic cylinder; a spring depressible Hall-effect sensor disposed in the socket and including a Hall IC; a hollow fastener adjustably threadedly secured to an opening of the socket and engaging the Hall-effect sensor; and a control line inserted through the fastener to electrically connect to the Hall IC.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Inventor: Szu-Fang Tsai