Patents Assigned to Gustav Magenwirth GmbH & Co.
  • Publication number: 20140041379
    Abstract: A master for a hydraulic actuating element, with a cylinder, in which a piston is displaceably mounted, and a hand lever, with which the position of the piston in the cylinder can be influenced, and a fastening element which comprises a clamping part shaped complementarily to the inner cross section of the handlebar, which is equipped for being fastened in the handlebar by means of an internal clamping. Furthermore, the invention relates to a master, in which the hand lever and the piston are connected by a push rod, which comprises a first longitudinal portion, which is provided with an external thread, which engages in an internal thread on the hand lever, so that the distance between piston and hand lever can be adjusted by turning the push rod, and wherein the push rod comprises a second longitudinal portion, which is provided with a polygonal outer cross section, which bears against at least one second spring element.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Stefan Ruckh, Jochen Coconcelli, Joachim Hujer
  • Patent number: 8631721
    Abstract: An actuator mounting, in particular, a clutch or brake mounting for a vehicle, includes a mounting housing (3) with an attachment shell (2) for attaching the mounting to a handlebar or a similar steering element, a hand lever (8) supported to rotate on the mounting housing (3), and a mechanical or hydraulic force transmission device arranged on the mounting housing (3). The actuator mounting includes a carrier plate (9) supported on the rotational bearing (7) in common with the hand lever (8) as an intermediate transmission element with multiple functions. The carrier plate (9) has contact points (16, 32, 34) for applying force to or tensioning the hand lever (8), the force transmission device, and the mounting housing stop (35).
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: January 21, 2014
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Franz Weiher
  • Patent number: 8621861
    Abstract: An actuating armature, in particular a brake and/or clutch armature, has a housing (2) in which is arranged a piston (5) moveable in a cylinder space (3) by an actuating element (7) in order to displace liquid. An equalizing space and/or storage tank (19) is arranged within the cylinder space (3) and/or within the piston (5).
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: January 7, 2014
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Frank Cherubin
  • Publication number: 20130241171
    Abstract: A lower leg (1) for a suspension fork has two tubes (2, 3) with, in each case, a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device. Two stabilizers (6, 7) connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another. The lower leg (1) has a stiffening member (8, 9) which connects the two stabilizers to one another.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 19, 2013
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Dirk Lüde, Reiner Künstle
  • Publication number: 20130228407
    Abstract: 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.
    Type: Application
    Filed: December 13, 2012
    Publication date: September 5, 2013
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Hubert Eberlein, Joachim Hujer
  • Publication number: 20130220064
    Abstract: An actuator mounting, in particular, a clutch or brake mounting for a vehicle, includes a mounting housing (3) with an attachment shell (2) for attaching the mounting to a handlebar or a similar steering element, a hand lever (8) supported to rotate on the mounting housing (3), and a mechanical or hydraulic force transmission device arranged on the mounting housing (3). The actuator mounting includes a carrier plate (9) supported on the rotational bearing (7) in common with the hand lever (8) as an intermediate transmission element with multiple functions. The carrier plate (9) has contact points (16, 32, 34) for applying force to or tensioning the hand lever (8), the force transmission device, and the mounting housing stop (35).
    Type: Application
    Filed: April 1, 2013
    Publication date: August 29, 2013
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventor: Gustav Magenwirth GmbH & Co. KG
  • Patent number: 8511700
    Abstract: 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.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: August 20, 2013
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventors: Hubert Eberlein, Joachim Hujer
  • Publication number: 20130162011
    Abstract: A master cylinder for a hydraulic brake or clutch system, in particular, a handlebar steered vehicle, in particular a bicycle, comprises a housing containing a cylinder chamber, in which are disposed a piston slidable therein and a pressure chamber. A compensation chamber is connected with the pressure chamber through at least one compensation bore. Also provided is a cover closing the housing and a counterpart for mounting the master cylinder on a handlebar tube. Further provided is at least one connecting device for connecting the counterpart with the housing of the master cylinder. Included with the connecting device is a first connecting portion for connecting the cover with the housing of the master cylinder and a second connecting portion for connecting the counterpart with the master cylinder and for mounting the master cylinder on a handlebar tube.
    Type: Application
    Filed: February 26, 2013
    Publication date: June 27, 2013
    Applicant: GUSTAV MAGENWIRTH GMBH & CO
    Inventor: GUSTAV MAGENWIRTH GMBH & CO
  • Patent number: 8439381
    Abstract: A lower leg (1) for a suspension fork has two tubes (2, 3) with, in each case, a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device. Two stabilizers (6, 7) connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another. The lower leg (1) has a stiffening member (8, 9) which connects the two stabilizers to one another.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: May 14, 2013
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventors: Dirk Lüde, Reiner Künstle
  • Publication number: 20130111983
    Abstract: A throttle twist grip includes a housing, a grip tube rotatable about an axis of rotation relative to the housing, a position detector having a position indicator and a sensor operable to detect relative position of the grip tube relative to the housing, a holder shaped to receive part of the position detector, and at least one of the holder being mounted rotatably about the axis in relation to the grip tube, the grip tube having a catch operable to carry along the holder upon actuation, the holder being rotatable about the axis in relation to the grip tube by an angle corresponding to idling play, a cruise control switch-off device, an angle of rotation limiting device disposed substantially in an axial plane of the holder, and a friction device operable to have a greater frictional resistance in an actuating direction than counter to the actuating direction upon actuation.
    Type: Application
    Filed: October 1, 2012
    Publication date: May 9, 2013
    Applicant: GUSTAV MAGENWIRTH GMBH & CO.
    Inventor: Gustav Magenwirth GmbH & Co.
  • Patent number: 8408090
    Abstract: An actuator mounting, in particular, a clutch or brake mounting for a vehicle, includes a mounting housing (3) with an attachment shell (2) for attaching the mounting to a handlebar or a similar steering element, a hand lever (8) supported to rotate on the mounting housing (3), and a mechanical or hydraulic force transmission device arranged on the mounting housing (3). The actuator mounting includes a carrier plate (9) supported on the rotational bearing (7) in common with the hand lever (8) as an intermediate transmission element with multiple functions. The carrier plate (9) has contact points (16, 32, 34) for applying force to or tensioning the hand lever (8), the force transmission device, and the mounting housing stop (35).
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: April 2, 2013
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Franz Weiher
  • Patent number: 8393448
    Abstract: A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, includes a compression stage damping system (6) for a spring deflection process and a traction stage damping system (5) for a rebound process. At least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting channel (17, 17a) is provided which connects the cylinder chambers located on both sides of the piston and is intended for the overflow of hydraulic oil (21). The compression stage damping system (6), which is activated during the spring deflection process, can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked and, if appropriate, also with the traction stage damping system (5) also blocked, a bypass channel (11, 20, 20a) which has a reduced cross-section in comparison to the connecting channel (17, 17a) is opened.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: March 12, 2013
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventors: Reiner Kunstle, Dirk Lude
  • Patent number: 8267484
    Abstract: An axle arrangement (1) for two-wheelers, particularly for bicycles, includes a quick-release axle (2) having an axle (6) as the supporting part for a hub (7). The axle (6) can be inserted in receiving or dropout ends (3, 4) of a fork (5), a linkage, a rear end or similar mount. The axle (6) has a threaded end (16) and a quick-release fastener (9) with a tensioning lever (10) on the other end. One of the dropout ends (3, 4), or an intermediate supporting part that can be connected to the dropout ends (3, 4), has a screw-in thread (15) for screwing in the one threaded axle end (16) of the axle (6). In addition, an adjustable stop may be provided for the purpose of limiting the screw-in depth of the threaded axle end (16) in the screw-in thread (15) of the dropout ends or in the screw-in thread (15) of the intermediate supporting part connected to the dropout ends (3, 4).
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: September 18, 2012
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Dirk Lüde
  • Publication number: 20110296827
    Abstract: In order to make the idle stroke which occurs as small as possible in a master cylinder, in particular for a clutch, actuating or brake system of a vehicle, comprising a cylinder housing with a piston bore, a piston arranged in the piston bore and having an end side facing a cylinder chamber and at least one afterflow opening which leads from a piston skirt surface through a piston wall to the cylinder chamber at a distance from the end side and adjoins an afterflow space in a pressure equalization position of the piston so that in the pressure equalization position hydraulic medium can run on into the cylinder chamber in order to equalize the pressure, and an inner sealing element which is arranged between the housing and the piston in the area of the piston bore and limits the cylinder chamber, it is suggested that the afterflow space be arranged between the sealing element and the piston skirt surface on a side of a sealing lip of the sealing element facing away from the cylinder chamber and that in the pr
    Type: Application
    Filed: June 14, 2011
    Publication date: December 8, 2011
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Michael Ruopp, Bernd Nenning
  • Publication number: 20110266286
    Abstract: In order to provide an afterflow reservoir for a hydraulic actuating device, in particular for a clutch or brake actuating device of motor vehicles, comprising an outlet which can be connected to an actuating cylinder, a container body rising above the outlet and having a storage chamber provided in it for holding hydraulic fluid as well as an air chamber located above a fluid level limiting the storage chamber, with which any intake of air bubbles into the actuating cylinder can be reduced, if not avoided, it is suggested that a separating unit extending at a distance from the fluid level be arranged in the storage chamber, this separating unit dividing the storage chamber into an intake chamber bordering on the outlet and a reserve chamber located between the separating unit and the fluid level, and that hydraulic fluid be able to enter the intake chamber from the reserve chamber through at least one connection between the reserve chamber and the intake chamber.
    Type: Application
    Filed: May 24, 2011
    Publication date: November 3, 2011
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Werner Schmauder, Bernd Nenning
  • Patent number: 8002250
    Abstract: An air spring and shock absorber unit for bicycles or motorbikes includes operator control elements which are accessible from the outside and are disposed on an outer surface of the air spring and shock absorber unit. The operator control elements are disposed so as to be rotatable about a common axis and relative to a position of articulation points.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: August 23, 2011
    Assignees: Continental AG, Magura Gustav Magenwirth GmbH & Co. KG
    Inventors: Joachim Hujer, Hans-Peter Krauss
  • Patent number: 7992420
    Abstract: A brake caliper for a disk brake, in particular for motorcycles and/or bicycles, includes a housing (30) in which a disk space (39) for receiving a brake disk and a brake cylinder (35) for receiving a brake piston (25) are formed. The brake cylinder (35) is connected to the disk space (39) and has, on its side opposite to the disk space (39), an assembly opening (50) through which the brake piston (25) can be inserted into the brake cylinder (35). A closure element (10) closes the assembly opening (50) after the insertion of the brake piston (25) into the brake cylinder (35). A securing element (21) secures the closure element (10) in the assembly opening (50) against forces in the direction of the main axis of the brake cylinder (35).
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: August 9, 2011
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Michael Ruopp
  • Publication number: 20110181009
    Abstract: A pneumatic spring device (1) for limiting the impact response of a vehicle wheel is provided, with at least one piston-cylinder arrangement (2) which has a piston (3) mounted in an axially displaceable manner in an internal cavity (5) of the cylinder (4), wherein the cylinder (4) is closed at its end regions which face away from each other by end walls (6) which are arranged at a fixed distance from one another. The piston (3) is connected to a piston rod (7) which passes through the end wall (6) and is guided in a sealing manner in the latter, wherein working spaces (8, 8?) which are delimited from each other on both sides of the piston (3) by the piston (3) and are formed as piston space (8) and piston rod space (8?) , which are filled with a compressible medium. The working spaces (8, 8?) can be connected to each other by a connecting device (10).
    Type: Application
    Filed: February 23, 2007
    Publication date: July 28, 2011
    Applicant: GUSTAV MAGENWIRTH GMBH & CO. KG
    Inventors: Dirk Lude, Jurgen Beier
  • Patent number: 7886883
    Abstract: A telescopic fork (1) for two-wheelers, in particular bicycles, is provided and includes a plunger tube (2) and a fixed tube (3) having a spring element (4), which is impinged by a piston (5) connected to the plunger tube (2), with the piston (5) having a piston rod (6) connected to the plunger tube (2). For adjusting the spring travel, the piston rod (6) is adjustable in height and connected to the plunger tube (2), with an adjustment cylinder (8) being provided for this purpose connected to the plunger tube (2), in which an adjustment piston (9) is guided connected to the piston rod (6) and the cylinder chambers (13, 14) located at both sides of the adjustment piston (9) are filled with fluid and are at least provided with one connecting channel that can be opened and closed for the fluid to flow.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: February 15, 2011
    Assignee: Gustav Magenwirth GmbH & Co. KG
    Inventor: Reiner Kunstle
  • Publication number: 20100282015
    Abstract: A shifting device, particularly for bicycle gearshifts, having an attachment device (2) for the installation of the shifting device on a handle bar (3) or similar steering unit, and having a shifting lever (10) for manual operation. The shifting device has a single shifting lever (10) for both shifting directions. The shifting lever (10) is pivotally supported about two different axes (6, 15), and one shifting direction is associated with each pivot axis (6, 15).
    Type: Application
    Filed: January 15, 2009
    Publication date: November 11, 2010
    Applicant: GUSTAV MAGENWIRTH GMBH & CO. KG
    Inventor: Dirk Lude