Class / Patent application number | Description | Number of patent applications / Date published |
188344000 | Velocipede | 51 |
20080245632 | BICYCLE HYDRAULIC BRAKE DEVICE - A bicycle hydraulic brake device includes a housing having a master cylinder, a master piston movably mounted in the master cylinder, a brake operating member and an adjustment mechanism. The brake operating member is arranged to move between a rest position and a brake actuating position and to move the master piston in response to movement of the brake operating member to the brake actuating position. The adjustment mechanism is arranged to adjust the rest position and a free stroke of the brake operating member with an initial travel position of the master piston remaining unchanged. The adjustment mechanism includes a first adjustment member that adjusts a length of a free stroke and a second adjustment member that adjusts the rest position of brake operating member without changing the length of the free stroke. | 10-09-2008 |
20080251334 | MASTER CYLINDER LEVER FOR A HYDRAULIC BRAKE WITH DEAD-BAND ADJUSTMENT MECHANISM - A master cylinder assembly for a bicycle disc brake having a housing defining a cylinder, a piston received in the cylinder, a lever pivotably attached to the housing, and an adjustment guide body that is operatively associated with the piston. The piston is moveable within the cylinder between a select starting position and a pressurized position. The lever is operatively associated with the piston to move the piston from the select starting position to the pressurized position as the lever is pivoted between a rest position and a fully-actuated position. The adjustment guide body is pivotable between a first position and a second position for adjusting the select starting position of the piston. | 10-16-2008 |
20090008198 | MULTI-POSITION BRAKE LEVER SYSTEM WITH A CONVERTER THAT CONVERTS A CABLE ACTUATOR TO A HYDRAULIC ACTUATOR - A hydraulic assembly for a hydraulic disc brake system that includes a housing defining a cylinder, a piston received in and moveable within the cylinder, a first lever operatively associated with one of the piston or the cylinder, and a second lever operatively associated with the other of the piston or the cylinder. Moving the first lever pushes one of the piston or the cylinder in a first direction, and moving the second lever pulls the other of the cylinder or the piston in a second direction. In a preferred embodiment, the piston has a non-actuated position and a fully actuated position, and the piston is biased towards the non-actuated position, and wherein the cylinder has a non-actuated and a fully-actuated position, and the cylinder is biased towards the non-actuated position. | 01-08-2009 |
20090120750 | HYDRAULIC BRAKE LEVER - A hydraulic brake lever generally includes a brake lever base, a handle hinged to the brake lever base, an oil reservoir and a half cover. The brake lever base may include a connecting portion and a main portion. A top of the connecting portion may be cooperable with the half cover to mount the hydraulic brake lever to a handlebar. The main portion may include a brake lever cylinder. The brake lever cylinder may include a return spring biasing a piston in the brake lever cylinder. The piston may have an outer end hinged with a push rod and another end hinged with the handle. The oil reservoir may be disposed in one side of the connecting portion adjacent the handle, and fluidly coupled to the brake lever cylinder. The position of the oil reservoir may be higher than the position of the brake lever cylinder. | 05-14-2009 |
20090120751 | HYDRAULIC BRAKE LEVER - A hydraulic brake lever includes a body having a bladder chamber, a cavity and a flexible separator mounted between the bladder chamber and the cavity. The flexible separator holds hydraulic oil in a front section of the body and prevents a rear section of the body from contacting with the pressurized hydraulic oil. A cylinder is mounted in the cavity of the body and accommodates a piston set. Thus, a high pressure is kept in the cylinder and is not applied directly on the body. Due to the separating design, the hydraulic oil applied a low pressure on the body. Thus, manufacturing the body is less limited and a manufacturing cost is reduced. | 05-14-2009 |
20090152061 | Adjustable pumping device for a hydraulic brake device of a bicycle - An adjustable pumping device for a hydraulic brake device of a bicycle includes a body mounted to a handlebar of the bicycle and having a first tunnel defined therein for containing oil. A main cylinder is disposed in the body and pumps oil to the hydraulic brake device of the bicycle. A lever is pivotally mounted to the body and has an adjuster mounted in the lever for adjusting an ineffective stroke of the main cylinder. | 06-18-2009 |
20090152062 | Position seat for a hydraulic brake device of a bicycle - A position seat for a hydraulic brake device of a bicycle includes a position member mounted to a handlebar of the bicycle and a pumping member partially received in the position member. The pumping member is selectively rotatable relative to the position member. A semi-annular groove is defined in an outer periphery of the pumping member and a locking pin extends through the position member and partially received in the semi-annular groove to prevent the pumping member from detaching from the position portion before being positioned and limit a rotate range of the pumping member relative to the position member. | 06-18-2009 |
20090152063 | Pumping device for a hydraulic brake of a bicycle - A pumping device for a brake device of a bicycle includes a tunnel and a main cylinder directly and respectively disposed in a distal portion of a handlebar of the bicycle. The tunnel is provided to contain oil and the main cylinder is connected to the brake device. The tunnel and the main cylinder communicate with each other via a first hole and a second hole that are respectively defined in the distal portion of the handlebar of the bicycle. A pair of ears extends from a distal end of the handlebar and a lever pivotally connected to the pair of the ears for operating the main cylinder. | 06-18-2009 |
20100051400 | Hydraulic brake lever device for bicycle - A hydraulic brake lever device includes a cylinder housing for attaching to a handlebar of a bicycle and having a chamber for receiving a hydraulic oil and a piston and a spring member, a level handle has a block pivotally attached to the cylinder housing and having one end engageable with the cylinder housing, an actuating member is attached to the other end of the block for selectively forcing the piston onto the spring member, and an adjusting member threaded to the block and extendible out of the block for engaging with the cylinder housing and for adjusting the movement between the level handle and the handlebar and for allowing the level handle to be suitably operated by a user. | 03-04-2010 |
20110017560 | MASTER CYLINDER-MOUNTED DISPLAY FOR A MOTORCYCLE - A cover for a hydraulic master cylinder. The cover includes an interface configured to sealingly engage with a master cylinder body to jointly define a hydraulic fluid reservoir. An electronic display unit is positioned at least partially within the cover and viewable from outside the cover. | 01-27-2011 |
20110031078 | HYDRAULIC BRAKE CONTROL APPARATUS - A hydraulic brake control apparatus including a body portion, a hydraulic brake control mechanism, and a lever portion. The body portion has a first section configured to fit within an interior of a bar opening and a second section configured to be mounted outside of the interior of the bar opening. The hydraulic brake control mechanism includes a hydraulic brake pressure cylinder having a piston chamber therein, where at least a portion of the hydraulic brake control mechanism is housed within the first section of the body portion. The lever portion connected to the body portion and configured to actuate the hydraulic brake control mechanism. The body portion includes a port fluidly connected to the piston chamber by a conduit. The port is provided on the second section in order to allow bleeding of air from within the piston chamber when the body portion is mounted to the bar opening. | 02-10-2011 |
20110031079 | BRAKE CONTROL APPARATUS AND CONTROL LEVER THEREFOR - A control lever including a body portion, a mounting portion, at least one mounting screw, and a lever portion. The body portion has a first section configured to fit within an interior of a bar opening, where the first section is configured to house at least a portion of a control mechanism and has an inclined surface on an outer surface thereof. The mounting portion is configured to slide on the inclined surface, and the mounting screw connects the mounting portion to the body portion. The lever portion is connected to the body portion and is configured to actuate the control mechanism. The mounting screw is configured to slide the mounting portion along the inclined surface so as to push the mounting portion and a side of the first section against an inner surface of the bar opening in order to mount the body portion to the bar opening. | 02-10-2011 |
20110147149 | BICYCLE HYDRAULIC BRAKE ACTUATION DEVICE - A bicycle hydraulic brake actuation device includes a hydraulic master cylinder housing having a bore, a lever, a master piston and an adjuster. The lever is pivotally coupled to the hydraulic master cylinder housing for movement between an at rest position and a brake engagement position. The master piston is disposed within the bore and having an adjustment end. The adjuster is operably disposed between the adjustment end of the master piston and a portion of the lever. The adjuster is movable between a plurality of adjustment positions relative to the adjustment end such that with the lever in the at rest position, movement of the adjuster between the plurality of adjustment positions moves the master piston between a corresponding plurality of adjustment positions along an axial length of the bore. | 06-23-2011 |
20110155525 | Adjustable brake lever assembly for bicycle - An adjustable brake lever assembly includes a handle mount having a lever housing, a piston of a brake device slidably engaged in the lever housing, a rotary member pivotally coupled to the lever housing, a brake handle includes a mounting arm connected to the rotary member for adjusting the brake handle relative to the rotary member and the lever housing, a barrel is pivotally fitted into the mounting arm, and a link rod is pivotally coupled to the piston of the brake device and includes a threaded segment engaged with the barrel for adjusting the brake handle relative to the brake device and the lever housing and for allowing the brake handle to be operated by adults or children of different hand or palm sizes or dimensions: | 06-30-2011 |
20110162929 | HYDRAULIC BRAKE SYSTEM - A hydraulic brake system includes a bicycle steering assembly having a head tube, a connecting member connected with the head tube and a handlebar mounted on the connecting member. The connecting member has a receiving portion disposed therein. A hydraulic device is mounted in the receiving portion. The hydraulic device includes a hydraulic braking mechanism and at least one connecting tube connected with the hydraulic braking mechanism. A braking device is adapted to mount on a wheel of the bicycle. The at least one connecting tube is connected with the braking device. Two brake levers are respectively mounted on two ends of the handlebar. Each brake lever has a brake cable connected therewith. The brake cable has one end connected to a corresponding brake lever and the other end connected to the hydraulic brake mechanism for relatively driving the brake device. | 07-07-2011 |
20110192687 | Handle mount for brake lever of wheeled cycle - A brake lever assembly includes a handle mount having a fluid reservoir formed in a lever housing, a cylinder engaged into the lever housing and having one or more apertures communicative with a bore of the cylinder and the fluid reservoir of the lever housing for receiving a piston, a brake handle pivotally coupling to the lever housing with a pivot shaft and pivotally coupled to the piston with a link rod, the lever housing is made of lighter materials, such as plastic or composite materials with a molding process and with a decreasing manufacturing cost, the lever housing is molded onto the cylinder, or the cylinder is engaged into the lever housing after the lever housing is molded. | 08-11-2011 |
20110240425 | HYDRAULIC BRAKE LEVER APPARATUS - A hydraulic brake lever apparatus is provided with a brake lever housing, a piston, a mounting structure, a brake lever, a fluid reservoir and a diaphragm. The brake lever housing includes a cylinder having the piston movably disposed within the cylinder. The mounting structure mounts the brake lever housing to a bicycle handlebar. The brake lever pivots relative to the brake lever housing to move the piston within the cylinder. The fluid reservoir fluidly communicates hydraulic fluid with the cylinder via a port. The fluid reservoir has a cylindrical shape and lies in a side by side relationship with the cylinder. The diaphragm is disposed within the fluid reservoir, and includes a substantial arrowhead shaped portion that allows the volume of the diaphragm to change smoothly while ensuring the volume of the hydraulic fluid chamber within the fluid reservoir. | 10-06-2011 |
20110240426 | HYDRAULIC BRAKE LEVER APPARATUS - A hydraulic brake lever apparatus is provided with a brake lever housing, a piston, a mounting structure, a brake lever and a fluid reservoir. The brake lever housing includes a cylinder having the piston movably disposed within the cylinder. The mounting structure mounts the brake lever housing to a bicycle handlebar. The brake lever pivotally is mounted to the brake lever housing and moves the piston within the cylinder in response to pivotal movement of the brake lever relative to the brake lever housing. The fluid reservoir fluidly communicates with the cylinder via a port that communicates hydraulic fluid therebetween. The fluid reservoir has a cylindrical shape and lies in a side by side relationship with the cylinder to prevent gas bubbles that have moves from the cylinder to the fluid reservoir via the port from flowing back to the cylinder. | 10-06-2011 |
20120145497 | Hydraulic brake controller - A hydraulic brake controller does not only dispose a first oil-return hole, which is connected to an oil storing space, at a stroke place of allowing a piston to reciprocate in a main oil cylinder, but also disposes a regulating screw, which stretches the first oil-return hole, on a controller main body. The speed of returning hydraulic oil to the oil storing space can be controlled by simply changing the degree of the regulating screw stretching the oil-return hole so that time of allowing the piston passing through the oil-return hole to completely impose the braking force on the brake pad can be extended or reduced, thereby achieving a goal of conveniently regulating the braking sensitivity. | 06-14-2012 |
20120152673 | Brake master cylinder - A brake master cylinder of the invention is to dispose a main oil cylinder and an oil storing space on a handlebar base. In addition, a sleeve engaged with the main oil cylinder is disposed in the oil storing space. The one end of the oil storing space has a fastening seat passed by a draw bar linked to the brake handlebar, and a positioning sheath of the fastening seat is utilized to engage with the sleeve. A leakage prevention component is disposed between the fastening seat and the handlebar base. A bushing integrally extended from the leakage prevention component is utilized to encapsulate the positioning sheath of the fastening seat and the sleeve. Accordingly, the brake master cylinder having convenient assembly and better sealing effect for hydraulic oil is obtained. | 06-21-2012 |
20120160625 | Hydraulic Brake Lever - A control assembly is mountable to a handlebar. The control assembly features a housing mountable to the handlebar and a brake actuation mechanism including a brake lever pivotally connected to a housing. The brake lever defines a fluid cavity inside the brake lever such that the fluid cavity pivots with the lever relative to the housing. A piston is provided in the fluid cavity and also pivots with the lever relative to the housing. Actuation of the lever causes the piston to move in the fluid cavity to provide compressive force to a fluid. The fluid cavity is in fluid communication with a hydraulic line. | 06-28-2012 |
20120199432 | Brake transmission mechanism in a brake lever of bicycle - A brake operating device for bicycle is provided a housing mounted on a handlebar and including a channel; a hydraulic brake lever pivotably secured to the housing and including an push member at one end, the push member including a cavity; a brake transmission mechanism disposed in the channel and comprising a stepped-diameter piston including an annular first groove distal the cavity, an annular second groove proximate the cavity, an intermediate groove, a resilient ring member put on the first groove, a return spring biasing against one end of the piston, an O-ring sealingly put on the second groove, and a flat surface at the other end facing the cavity; and an actuating member rotatably contacting both the cavity and the flat surface. | 08-09-2012 |
20120305355 | BRAKE LEVER ASSEMBLY WITH TWO CYLINDER UNITS - A brake lever assembly includes a body connected to an oil pipe and includes a first room and a second room. A first path communicates between the storage space and the first room. A second path communicates between the first room and the second room. The oil pipe is connected to a hydraulic oil storage space in the body. A lever is pivotably connected to the body and includes a push portion. A first cylinder unit is located in the first room and connected between the oil pipe and the push portion. The first cylinder unit is operated a first travel. A second cylinder unit is located in the second room and has a first end contacting inside of the body and a second end connected to the push portion. The second cylinder unit is operated a second travel which is longer than the first travel. | 12-06-2012 |
20130025988 | SEALING DEVICE FOR HYDRAULIC BRAKE LEVER ASSEMBLY - A sealing device for hydraulic brake lever assembly includes a seat having an oil tank defined therein for receiving oil. The oil tank has a connecting hole defined therein. The oil tank is conically tapered toward the bottom thereof. An elastomer is sealingly received in the oil tank. The elastomer has an U-shaped portion formed therein for providing a resilient force. The elastomer has a movable portion formed therein. A piston assembly is received in the oil tank and connected to the elastomer for actuating the elastomer. At least one oil seal is sleeved on the driving shank for preventing oil leakage. When braking, the piston assembly actuates the U-shaped portion to deform. The movable portion is pushed to pressing oil into the connecting hole. When an oil pressure is decreased, the U-shaped portion restores. The movable portion is pulled backward by the resilient force. | 01-31-2013 |
20130056318 | HYDRAULIC BRAKE CLAMP FOR BIKES - A hydraulic brake clamp for bikes includes a clamp, two piston assemblies and a cap. The clamp has a brake disk room defined on the middle thereof so that a brake disk is received therein. An assembling room and a receiving room are respectively defined in two sides of the clamp. The brake disk room, the assembling room and the receiving room are in communication with each other. A connecting hole is defined through the clamp and communicates with the receiving room. The piston assemblies are assembled from the brake disk room to the assembling room and the receiving room. The cap is threaded into the receiving room via the connecting hole for sealing the receiving room and preventing the piston assemblies from dropping out from the connecting hole. | 03-07-2013 |
20130180815 | Hydraulic Brake Mechanism - A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region. | 07-18-2013 |
20130192941 | Hydraulic brake - A hydraulic brake is used to a handle of a two wheel vehicle and contains a body including two first tabs, the handle including an axial hole and a through bore to receive an adjustable nut having a screw aperture to be screwed with first threads of a connecting post of a hydraulic piston, the body including a retaining sleeve and two second tabs, a hydraulic cylinder including an oil chamber and fitted to a holder, a positioning nut having an orifice screwed with second threads of the hydraulic cylinder, the holder including a receiving room to receive an oil cup, a pore, and a cover, an outer diameter of the pore of the holder being equal to that of the hydraulic cylinder, the hydraulic piston including the connecting post, and the connecting post including the first threads to screw the connecting post with the orifice of the positioning nut. | 08-01-2013 |
20130199882 | Pivot mechanism in a brake lever of bicycle for ensuring a reliable actuation of brake - A bicycle brake operating device is provided with a housing on a handlebar and including a channel, first and second holes, a fluid reservoir, and a reservoir cover on the fluid reservoir; a brake transmission mechanism in the channel; a hydraulic brake lever including a stepped-diameter tunnel and a push member engaging the spring actuated mechanism; and a pivot assembly including a first retaining member including a sleeve disposed in the first hole and having one end engaging the reservoir cover, and an annular flange at the other end of the sleeve and engaging an inner surface of the tunnel; a second retaining member including a cup in the second hole and having a bottom through hole, and an annular flange around mouth of the cup, the flange engaging the inner surface of the tunnel; and a cylindrical pivot in the first and second retaining members and the tunnel. | 08-08-2013 |
20130228405 | BRAKE OPERATING DEVICE OF ELECTRIC BICYCLE WITH HALL-EFFECT SENSOR - 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. | 09-05-2013 |
20130228406 | Brake operating device of electric bicycle with sensor - 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. | 09-05-2013 |
20130228407 | Master Device for a Closed Hydraulic System of Handlebar-Steered Vehicles - A master device for a closed hydraulic system of handlebar-steered vehicles includes a basic body and a pressure chamber in which, in the event of actuation of the master device in order to actuate a slave device, hydraulic fluid is placed under pressure. The master device includes a hydraulic line connecting element having a connecting piece for connecting a hydraulic line and a thread section for screwing into the basic body. An air bleed opening bleeds the hydraulic system. The hydraulic line connecting element and the basic body form a valve that closes the connection between the pressure chamber and the air bleed opening when the hydraulic line connecting element is fully screwed in to the basic body. | 09-05-2013 |
20130233659 | ADJUSTMENT DEVICE FOR A HYDRAULIC BRAKE SYSTEM - An adjustment device for a hydraulic brake system includes a hollow casing and a retractable unit. The hollow casing has a rotatable ring to control the retractable unit. One end of the hollow casing is connected to a hydraulic hose, and another end is connected to a hydraulic cylinder. The adjustment device is assembled between a hydraulic hose and a hydraulic cylinder. When a user rotates the rotatable ring, the retractable unit is adjusted so as to control a sensitivity of a hydraulic brake system. | 09-12-2013 |
20130240313 | HYDRAULIC BRAKE SYSTEM - A hydraulic brake system is adapted to be assembled on a steering assembly. The hydraulic brake system includes a connecting member and hydraulic device. The connecting member has a receiving room and a receiving opening. The hydraulic device has a hydraulic cylinder and a fluid tank. The hydraulic cylinder is received in the receiving room. The fluid tank is inserted in the receiving opening and connected with the hydraulic cylinder. The hydraulic cylinder has a main body, two pistons and two springs. The main body has two hydraulic chambers. The two pistons are assembled in the two hydraulic chambers and two springs sleeve onto the two pistons. Two brake cables and two fluid pipes are connected with the hydraulic cylinder. When the brake cable pulls the piston to press a fluid in the hydraulic chamber, the fluid flows into the fluid pipe so as to control a brake device. | 09-19-2013 |
20130277162 | BICYCLE HYDRAULIC OPERATING DEVICE - A bicycle hydraulic operating device is basically provided with a main body, a hydraulic unit, a handlebar mounting structure and a lever. The main body includes a gripping portion. The hydraulic unit is mounted to the main body. The handlebar mounting structure is disposed on one of the main body and the hydraulic unit. The lever is pivotally mounted to one of the main body and the hydraulic unit. | 10-24-2013 |
20130284552 | HYDRAULIC BRAKE DEVICE - A hydraulic brake device includes a main body, a brake lever, a hydraulic rod, a connecting rod, a sleeve member and an elastic member. The elastic member has an assembling portion, a driving portion and a deformation portion. When a user actuates the brake lever suddenly and forcefully, the driving portion of the elastic member moves toward the hydraulic room; a pressure of hydraulic oil pushes the driving portion so as to indirectly force the deformation portion to deform and bend, so that the deformation portion and the driving portion slightly move toward the assembling portion; thereby, a volume of hydraulic oil is smoothly pushed into a brake caliper through a hydraulic pipeline, such that the user brakes a bicycle stably, smoothly and safely. | 10-31-2013 |
20130333994 | BRAKE CONTROL APPARATUS - A hydraulic brake control apparatus for attaching to an open ended handlebar of a vehicle, the handlebar having a longitudinal axis. A brake housing is attachable to the handlebar, the brake housing including a first section residing outside the handlebar and abutting the open end of the handlebar, and a second section sized and shaped to be received inside the handlebar. A master cylinder is disposed within the first section, the master cylinder having a bore with a bore axis that is oriented transverse to said axis of the handlebar and a master cylinder actuator is in operative association with the master cylinder. A micro-adjust mechanism, a macro-adjust mechanism, and a clamp mechanism is also provided. | 12-19-2013 |
20140060986 | HYDRAULIC BRAKE HANDLE ASSEMBLY - A hydraulic brake handle assembly, wherein the response time of the hydraulic brake caliper can be much improved, and the brake action can be carried out immediately. When the brake lever is pressed, the volume of the oil pushed by the piston is doubled due to the hydraulic brake handle assembly is provided with two piston portions inserted in two oil chambers. Since the response time of the hydraulic caliper of the present invention is improved, it allows the brake pads of the hydraulic caliper to be assembled at a relatively large distance from the brake disc, so that sand won't get struck between the brake pads and the brake disc, and the brake disc remains useful when they are bent out of plain rubbing after using. | 03-06-2014 |
20140060987 | HYDRAULIC BRAKE MASTER CYLINDER - A hydraulic brake master cylinder includes a cylinder unit having first and second spaces, a channel communicating the spaces and an adjuster exposed outside; a piston slidably disposed in the first space; a first spring applying an elastic force to the piston; a rod moving relative to the piston; a second spring applying an elastic force to the rod; a seal attached to the rod and moving controllably to seal the channel; and a nut threaded onto the rod. The adjuster is rotatable to make the nut and the rod rotate with respect to each other so as to change the distance between the seal and the end of the channel to adjust the free stroke. | 03-06-2014 |
20140158487 | HYDRAULIC BRAKE DEVICE FOR A BICYCLE - A hydraulic brake device for a bicycle includes a holder, a chamber member and two side oil tubes, the holder assembled with the bicycle, the chamber member assembled to the holder and having two oil tanks, each oil tank having an operating bar movably received therein, the brake cable connected with the operating bar, each oil tank having a brake oil drain and a side oil hole, a distance being defined between each brake oil drain and each corresponding side oil hole, each brake oil drain and each side oil hole communicating with the chamber member, each brake oil drain assembled to a brake hose and communicating with a brake system of the bicycle, the chamber member having two assembling grooves, two ends of each side oil tube assembled to each corresponding side oil hole and each corresponding assembling groove respectively. | 06-12-2014 |
20140174866 | BICYCLE HYDRAULIC COMPONENT OPERATING DEVICE - A bicycle hydraulic component operating device has a main body, a hydraulic cylinder, a piston, an operating lever, a fluid reservoir tank, and a communication port. The main body includes a handlebar mounting portion and a gripping portion. The piston is movably disposed within the hydraulic cylinder. The operating lever is pivotally disposed around a pivot axis relative to the main body. The operating lever is operatively connected with one of the hydraulic cylinder and the piston to generate a hydraulic force in response to pivotal movement of the operating lever relative to the main body. The fluid reservoir tank is in fluid communication with the hydraulic cylinder. The communication port is in communication with the fluid reservoir tank. | 06-26-2014 |
20140202810 | Hydraulic Brake Mechanism - A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region. | 07-24-2014 |
20140231202 | Hydraulic brake adjusting device - A hydraulic brake adjusting device is provided. The mechanical advantage may be automatically increased by pressed the handlebar by riders and then increased the angle lead by the leading plate(s). Thereby, it may simplify structure, be easy to operate, and be capable of automatically adjusting mechanical advantage while riding. Furthermore, the distance between the O-ring on the tube and the through hole of the piston may be adjusted by the screw barrel to make the convex portion push against the tube, the piston, and the push rod. | 08-21-2014 |
20140231203 | Hydraulic brake master cylinder - A hydraulic brake master cylinder is provided. The end of the movable barrel away from the outer convex ring is spaced apart or against the first inner convex flange and to adjust the location of one of two flow-through holes to make the use of brake not be influenced by the oil and air inside the first cylinder while rotating the movable barrel through the disposed outer convex ring. Two elastic plates are plugged in the inner conical portion, the outer convex ring between two ends of the inner connecting member is against the third inner convex flange adjacent to the fifth inner threaded portion, and two elastic plates are pressed by the inner conical portion to be fastened and passed through the second end cap, the second piston, the first piston, and the end of the two elastic plates with a brake cable in series. | 08-21-2014 |
20140360829 | HYDRAULIC PUMP - A hydraulic pump including a containment body ( | 12-11-2014 |
20150090550 | BICYCLE HYDRAULIC OPERATING DEVICE - A bicycle hydraulic operating device comprises a base member, a piston, and a plug member. The base member is configured to be mounted to a bicycle handlebar and has a cylinder bore and a through-hole. The cylinder bore extends in a first direction. The through-hole includes an outer opening on an outer surface of the base member and extends from the cylinder bore. The piston is configured to be movably disposed within the cylinder bore. The plug member is configured to plug up the through-hole and has an inside part disposed inside the outer opening. The inside part has a maximum outer diameter larger than an inner diameter of the outer opening. | 04-02-2015 |
20150375729 | Hydraulic Brake Mechanism - A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region. | 12-31-2015 |
20160052592 | BICYCLE COMPONENT CONTROL DEVICE - A bicycle component control device includes a bracket, a hydraulic brake unit and either a mechanical shifting unit or electric control unit. The bracket has a gripping portion. The hydraulic brake unit is operatively mounted on the bracket and configured to operate a hydraulic brake device. The mechanical shifting unit or the electric control unit is operatively mounted on the bracket and configured to operate a bicycle device. | 02-25-2016 |
20160129968 | HYDRAULIC BRAKE CONTROL DEVICE FOR A HANDLEBAR OF BICYCLE - The present invention provides an integrated control device of hydraulic brake for a handlebar of bicycle. The integrated control device includes a brake actuator of hydraulic type mounted on a housing body. The housing body comprises a handgrip portion and an attachment portion to the bicycle handlebar. The brake actuator includes a brake lever hinged on the housing body through a pin. A hydraulic cylinder is provided wherein a slidable piston is slidable that is kinematically connected to the brake lever through kinematic connection elements. A tank for hydraulic fluid is in fluid communication with the hydraulic cylinder. The control device includes an autonomous cartridge that comprises the hydraulic cylinder and the tank, and is removably inserted into a corresponding seat of the housing body. The seat is formed in a head portion of the housing body that is substantially opposite the attachment portion. | 05-12-2016 |
20160200392 | Hydraulic Bicycle System | 07-14-2016 |
20160251056 | HIDDEN OIL TUBE STRUCTURE FOR A BICYCLE | 09-01-2016 |
20160375952 | HYDRAULIC BRAKE - A hydraulic brake is used to a handle of a two wheel vehicle and contains a body including two first tabs, the handle including an axial hole and a through bore to receive an adjustable nut having a screw aperture to be screwed with first threads of a connecting post of a hydraulic piston, the body including a retaining sleeve and two second tabs, a hydraulic cylinder including an oil chamber and fitted to a holder, a positioning nut having an orifice screwed with second threads of the hydraulic cylinder, the holder including a receiving room to receive an oil cup, a pore, and a cover, an outer diameter of the pore of the holder being equal to that of the hydraulic cylinder, the hydraulic piston including the connecting post, and the connecting post including the first threads to screw the connecting post with the orifice of the positioning nut. | 12-29-2016 |