Patents Assigned to Gustav Magenwirth GmbH & Co.
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Publication number: 20140041379Abstract: 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: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Stefan Ruckh, Jochen Coconcelli, Joachim Hujer
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Patent number: 8631721Abstract: 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: GrantFiled: April 1, 2013Date of Patent: January 21, 2014Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Franz Weiher
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Patent number: 8621861Abstract: 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: GrantFiled: December 22, 2006Date of Patent: January 7, 2014Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Frank Cherubin
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Publication number: 20130241171Abstract: 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: ApplicationFiled: March 18, 2013Publication date: September 19, 2013Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Publication number: 20130228407Abstract: 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: ApplicationFiled: December 13, 2012Publication date: September 5, 2013Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Hubert Eberlein, Joachim Hujer
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Publication number: 20130220064Abstract: 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: ApplicationFiled: April 1, 2013Publication date: August 29, 2013Applicant: Gustav Magenwirth GmbH & Co. KGInventor: Gustav Magenwirth GmbH & Co. KG
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Patent number: 8511700Abstract: 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: GrantFiled: December 13, 2012Date of Patent: August 20, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Hubert Eberlein, Joachim Hujer
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Publication number: 20130162011Abstract: 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: ApplicationFiled: February 26, 2013Publication date: June 27, 2013Applicant: GUSTAV MAGENWIRTH GMBH & COInventor: GUSTAV MAGENWIRTH GMBH & CO
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Patent number: 8439381Abstract: 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: GrantFiled: March 1, 2010Date of Patent: May 14, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Publication number: 20130111983Abstract: 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: ApplicationFiled: October 1, 2012Publication date: May 9, 2013Applicant: GUSTAV MAGENWIRTH GMBH & CO.Inventor: Gustav Magenwirth GmbH & Co.
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Patent number: 8408090Abstract: 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: GrantFiled: August 25, 2008Date of Patent: April 2, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Franz Weiher
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Patent number: 8393448Abstract: 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: GrantFiled: February 23, 2007Date of Patent: March 12, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Reiner Kunstle, Dirk Lude
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Patent number: 8267484Abstract: 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: GrantFiled: February 1, 2008Date of Patent: September 18, 2012Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Dirk Lüde
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Publication number: 20110296827Abstract: 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 prType: ApplicationFiled: June 14, 2011Publication date: December 8, 2011Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Michael Ruopp, Bernd Nenning
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Publication number: 20110266286Abstract: 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: ApplicationFiled: May 24, 2011Publication date: November 3, 2011Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Werner Schmauder, Bernd Nenning
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Patent number: 8002250Abstract: 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: GrantFiled: March 3, 2008Date of Patent: August 23, 2011Assignees: Continental AG, Magura Gustav Magenwirth GmbH & Co. KGInventors: Joachim Hujer, Hans-Peter Krauss
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Patent number: 7992420Abstract: 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: GrantFiled: October 7, 2009Date of Patent: August 9, 2011Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Michael Ruopp
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Publication number: 20110181009Abstract: 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: ApplicationFiled: February 23, 2007Publication date: July 28, 2011Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventors: Dirk Lude, Jurgen Beier
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Patent number: 7886883Abstract: 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: GrantFiled: May 9, 2007Date of Patent: February 15, 2011Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Reiner Kunstle
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Publication number: 20100282015Abstract: 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: ApplicationFiled: January 15, 2009Publication date: November 11, 2010Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventor: Dirk Lude