| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474082000 | Shifter mechanism including parallelogram linkage | 28 |
| 20080227572 | ELECTRICALLY OPERATED DERAILLEUR WITH FORCE OVERLOAD PROTECTION - A derailleur comprises a base member, a movable member; a linkage mechanism including a link member coupled to the base member and to the movable member so that the movable member moves relative to the base member, a motor including a drive member, and a driven member driven by the drive member. The driven member is coupled to the link member so that the link member moves relative to the base member to move the movable member relative to the base member. A clutch is disposed in a power transmission path between the motor and the link member. | 09-18-2008 |
| 20090062045 | BICYCLE REAR DERAILLEUR - A bicycle rear derailleur basically comprises a mounting member, a movable member, a connecting mechanism and a chain guide. The chain guide includes a first plate member, a second plate member, a guide pulley and a tension pulley, with at least one of the first and second plate members including a chain disengagement prevention part arranged between the guide pulley and the tension pulley. The chain disengagement prevention part is arranged to make it more difficult for a chain disengagement prevention part provided on a chain guide to become jammed in a sprocket. | 03-05-2009 |
| 20090137354 | BICYCLE REAR DERAILLEUR - A bicycle derailleur is basically provided with a base member, a linkage assembly movably coupled to the base member, a movable member movably coupled to the linkage assembly, and a chain guide movably coupled to the movable member. The movable member includes a resin main body, a metallic coupling member fixed to the resin main body and a pivot axle having a first end coupled to the metallic coupling member. The chain guide pivotally coupled to a second end of the pivot axle of the movable member. | 05-28-2009 |
| 20090163310 | BICYCLE DERAILLEUR WITH MULTIPLE MOUNTING ADJUSTMENTS - A bicycle derailleur comprises a base member; a movable member that supports a chain guide, wherein the movable member is coupled to the base member so that the movable member moves relative to the base member for moving a chain among a plurality of sprockets; an intermediate member that mounts the base member to a bicycle frame; a first adjusting mechanism that adjustably sets a position of the intermediate member relative to the bicycle frame; and a second adjusting mechanism that adjustably sets a position of the base member relative to the intermediate member. | 06-25-2009 |
| 20090215561 | ELECTRICALLY OPERATED DERAILLEUR WITH A POWER STORING MECHANISM - A derailleur for a bicycle comprises a base member, a movable member for supporting a chain guide, a linkage mechanism coupling the base member to the movable member, an electrically operated actuating element, and a power storing mechanism. Moving the actuating element causes the movable member to move laterally. A first portion of the power storing mechanism is disposed in a first power transmission path between the actuating element and the movable member, and a second portion of the power storing mechanism is disposed in a different second power transmission path between the actuating element and the movable member. The actuating element comprises a first actuating member and a second actuating member. The first actuating member communicates force in the first power transmission path, the second actuating member communicates force in the second power transmission path, and the first actuating member moves relative to the second actuating member. | 08-27-2009 |
| 20090247334 | BICYCLE DERAILLEUR - A bicycle derailleur includes a mounting member, at least one linkage member, a movable chain guide and a chain guide tensioning mechanism. The mounting member is configured to be attached to a bicycle frame. The linkage member is supported to the mounting member. The movable member is movably coupled to the mounting member via the linkage member. The chain guide is pivotally connected to the movable member to pivot about a pivot axis that extends through the movable member. The chain guide also supports a guide pulley and a tension pulley. The chain guide tensioning mechanism is supported to the movable member at a point spaced apart from the pivot axis configured to bias the chain guide in a direction about the pivot axis. | 10-01-2009 |
| 20090291789 | MOTION RESISTING APPARATUS FOR A BICYCLE DERAILLEUR - A bicycle derailleur apparatus comprises a base member for coupling to a bicycle frame, a movable member coupled for movement relative to the base member, a chain guide coupled to the movable member for guiding a chain among a plurality of sprockets in response to movement of the movable member, and a biasing device that provides a biasing force to the chain guide for tensioning the chain. A movement resisting device has a control element for the application of a signal that causes the movement resisting device to change resistance to movement of the chain guide. | 11-26-2009 |
| 20110224037 | Cable Control Actuating Device For A Bicycle Derailleur - A device for guiding and supporting the cable for actuating a front derailleur for bicycles. The device provides the cable guide parts with alternative cable routing paths, wherein the cable guide parts are securely connected to the connecting arm. The cable clamping screw for clamping the control cable is housed in a space saving manner in an opening in the cable guide part, wherein a direct transfer of the actuating forces to the connecting arm is possible with small frictional losses. | 09-15-2011 |
| 20130072333 | BICYCLE FRONT DERAILLEUR - A bicycle front derailleur is basically provided with a base member, a movable member and a biasing arrangement. The biasing arrangement is operatively disposed between the base member and the movable member such that a biasing force of the biasing arrangement is smaller during an early range of a movement range of the movable member as the movable member moves from a first position to a second position. The biasing arrangement includes a first biasing member, a second biasing member and a pre-load body. The first and second biasing members selectively bias the movable member. The pre-load body maintains the second biasing member in a loaded state such that the second biasing member applies the second biasing force only after the movable member has partially moved from the first position towards the second position. | 03-21-2013 |
| 20130203532 | Derailleur With Damping Assembly - A bicycle rear derailleur including a base member and a movable member movably coupled to the base member. A chain guide assembly is rotatably connected to the movable member and a damper assembly is operatively disposed between the chain guide assembly and the movable member. The damper assembly includes a damper disposed in the movable member, and a one-way clutch disposed between the damper and the chain guide assembly. The one-way clutch is configured to permit damping when the chain guide assembly rotates in a first direction. The damper is disposed exteriorly of the one-way clutch. | 08-08-2013 |
| 20140018199 | BICYCLE REAR DERAILLEUR - A bicycle rear derailleur comprises a first member, a second member and a locking structure. The second member is pivotally attached to the first member about a pivot axis. The locking structure fixes a relative position of the first and second members with respect to a rotational direction about the pivot axis. The locking structure is configured to release the relative position of the first and second members from a fixed state upon a predetermined load being provided to one of the first and second members in the rotational direction with respect to the pivot axis. | 01-16-2014 |
| 20140087901 | REAR DERAILLEUR - An embodiment of the invention provides an electromechanical rear derailleur for a bicycle including a base member that is configured to be coupled to a frame member of a bicycle. The derailleur includes a movable member and a link mechanism that movably couples the movable member to the base member. A motor is positioned at the movable member to move the movable member. | 03-27-2014 |
| 20140128189 | BICYCLE DERAILLEUR - A bicycle derailleur is basically provided with a base member, a movable member and a connecting structure. The base member includes a bicycle mounting portion. The movable member is movable with respect to the base member between a first position and a second position that is farther than the first position from the base member. The connecting structure movably connects the movable member to the base member. The connecting structure moves the movable member with an actuation ratio that descends and then ascends as the movable member moves from the first position towards the second position. | 05-08-2014 |
| 20140128190 | ELECTRIC FRONT DERAILLEUR - An electric front derailleur includes a base member, a chain guide, a first link member, a second link member and an electric driving unit. The base member includes a mounting portion to be operatively mounted to a bicycle frame. The chain guide is movable with respect to the base member. The first link member movably connects the chain guide to the base member. The first link member is at least partially aligned with the chain guide in a lateral direction with the electric front derailleur in an installed position. The second link member movably connects the chain guide to the base member. The second link member is at least partially aligned with the chain guide in the lateral direction with the electric front derailleur in the installed position. The electric driving unit is operatively coupled to the chain guide to move the chain guide with respect to the base member. | 05-08-2014 |
| 20140128191 | Drive arrangement for a bicycle, having a greater difference in the number of teeth between the largest and the smallest rear chain sprocket - A drive arrangement for a bicycle including a chainring having a chainring axis, a plurality of different rear sprockets, the plurality of rear sprockets sharing a sprocket axis, a drive chain that runs around the rear sprockets and the chainring and in meshing engagement with a selected active sprocket of the plurality of rear sprockets and the chainring, and a rear derailleur. The rear derailleur is configured to shift the chain over a plurality of sprockets having a difference in tooth count of over 25 teeth ranging from a smallest to a largest sprocket. | 05-08-2014 |
| 20140148287 | FRONT DERAILLEUR - A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member. | 05-29-2014 |
| 20140171242 | BICYCLE DERAILLEUR AND METHOD - A front derailleur for use on devices such as bicycles is movable about a yaw axis while it moves laterally. The front derailleur may include a linkage in between a mount and a cage, with the linkage pivoting about two non-parallel axes. The front derailleur may include a linkage in between the mount and the cage that has links of different effective lengths. The front derailleur may include a single link and a cam. | 06-19-2014 |
| 20140243129 | BICYCLE GEARSHIFT WITH IMPROVED PRECISION CONTROL - The present invention refers to a bicycle gearshift with improved precision control, which comprises a kinematic mechanism in the form of a four-bar linkage with a base body and a mobile body connected together through a pair of connecting rods articulated to the base body and to the mobile body at four pin elements, each pair of opposite pin elements of the four pin elements defining a diagonal of the four-bar linkage-kinematic mechanism, the base body comprising a first attachment group to a bicycle frame and the mobile body being connected to a chain guide at a second attachment group, the four-bar linkage-kinematic mechanism being associated with gearshift actuation means suitable for deforming the four-bar linkage-kinematic mechanism so as to determine a displacement of the mobile body with respect to said base body and consequently a primary displacement of the chain guide in the axial direction with respect to the axis (A) of a cogset, at least one from the first attachment group and the second attachment group comprising a chain tensioning spring, the chain tensioning spring determining a set-up of the chain guide when engaged with a chain of a bicycle transmission, and it is characterised in that it comprises a kinematic mechanism for adjusting the preload of the chain tensioning spring as a function of the primary displacement of the chain guide so as to determine a variation in the set-up of the chain guide. | 08-28-2014 |
| 20140243130 | BICYCLE GEARSHIFT WITH IMPROVED PRECISION CONTROL - The present invention refers to a bicycle gearshift with improved precision control, comprising a kinematic mechanism in the form of a four-bar linkage with a base body and a mobile body connected together through a pair of connecting rods articulated to the base body and to the mobile body at four pin elements, each pair of opposite pin elements of the four pin elements defining a diagonal of the four-bar linkage kinematic mechanism, and a first attachment group of the base body to a bicycle frame, the mobile body being connected to a chain guide at a second attachment group, the four-bar linkage kinematic mechanism being associated with gearshift actuation means suitable for deforming the four-bar linkage kinematic mechanism so as to determine a displacement of the mobile body with respect to the base body and consequently a primary displacement of the chain guide in the axial direction with respect to the axis (A) of a cogset, and it is characterised in that the first attachment group comprises a kinematic mechanism for changing the relative angular position between the base body of the four-bar linkage kinematic mechanism and the frame as a function of the primary displacement of the chain guide. | 08-28-2014 |
| 20140349794 | BICYCLE FRONT DERAILLEUR - A front derailleur that includes a fixing member that is configured to be fixed to a bicycle frame, a chain guide movable between a retracted position and an extended position with respect to the fixing member, a linkage mechanism coupling the chain guide to the fixing member, and a biasing member that biases the chain guide toward one of the retracted position and the extended position. The linkage mechanism includes a first link member that is pivotable with respect to the fixing member about a first axis and is pivotable with respect to the chain guide about a second axis that is positioned above the first axis when the fixing member is fixed to the bicycle frame. The biasing member is coaxially arranged around the second axis. | 11-27-2014 |
| 20140378252 | Bicycle Single-Acted Gear-Shifting Device and Its Unidirectional Operator Mechanism - Bicycle single-acted gear-shifting device ( | 12-25-2014 |
| 20150111675 | ELECTROMECHANICAL REAR DERAILLEUR - An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle bicycle along a mounting axis. A movable member has a cage assembly attached thereto. A linkage is provided including pivot axes oriented substantially perpendicular to the mounting axis, the linkage coupling the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an electric motor connected thereto and a transmission is coupled to and actuated by the motor to move the movable member. | 04-23-2015 |
| 20150126314 | MOTOR DRIVEN DERAILLEUR FOR A BICYCLE GEARSHIFT - A motor actuated derailleur for a bicycle gearshift that has a support body adapted for mounting on a bicycle frame. A chain guide moves a bicycle chain between different engaged positions on respective gear wheels. A pair of connecting rods connects said chain guide to said support body with a first connecting rod of said pair of connecting rods being rotatable about a first rotation axis (X) at a first end thereof. A motor housed in said support body has an output shaft able to rotate about a second rotation axis. A transmission between said motor and said first connecting rod is housed in an inner chamber of said support body that comprises at least one adjustable end stop element that prevents the rotation of the output shaft beyond a predetermined rotation angle, in at least one of the two directions of rotation of the output shaft. | 05-07-2015 |
| 20150353166 | BICYCLE FRONT DERAILLEUR - A bicycle front derailleur is basically provided with a base member, a movable member, an electric driving unit and a biasing member. The base member includes a bicycle mounting portion. The movable member is movably supported with respect to the base member between a first position and a second position that is farther than the first position from the base member. The electric driving unit is operatively coupled to the movable member to move the movable member between the first position and the second position. The biasing member is operatively disposed between the base member and the movable member to bias the movable member towards the second position. | 12-10-2015 |
| 20160107724 | BICYCLE DERAILLEUR - A bicycle derailleur includes: a passive first derailleur, installed on a fasten plate and a rear shaft of a bicycle and provided with a chain pulling arm; and characterized in that: an active second derailleur is provided, a lower fasten part thereof and a lower fasten part of the passive first derailleur and a horizontal frame rod of the bicycle are provided with a guide plate, the upper portion of the guide plate is disposed at the front end of the chain, the middle portion thereof is disposed at the lower fasten part of the active second derailleur, and the lower portion thereof is disposed on a fasten shaft of the passive first derailleur. Accordingly, the active second derailleur is enabled to allow the guide plate to synchronously drive the passive first derailleur and the shifting is able to be achieved through the chain being normally or reversely operated. | 04-21-2016 |
| 20160152301 | DERAILLEUR OF A BICYCLE GEARSHIFT AND METHOD FOR ELECTRONICALLY CONTROLLING A BICYCLE GEARSHIFT | 06-02-2016 |
| 20170233036 | FRONT DERAILLEUR | 08-17-2017 |
| 20190144072 | BICYCLE REAR DERAILLEUR | 05-16-2019 |
