Patents Assigned to Ringspann GmbH
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Publication number: 20130161151Abstract: A return stop limiting torque, particularly for conveyer systems, including an internal ring, a concentric external ring, and several retaining elements arranged in the annual gap between the rings, which allow a relative rotation between the rings in one direction, and block it in the other direction through form-fitting or frictional engagement. The external ring has friction areas at its radially extending faces, which can axially be clamped against the corresponding friction disks, with the friction disks being supported in a torque-proof fashion but at least partially axially displaceable. Here the external ring is divided into several axially adjacent partial rings, each being axially spaced from one another by an annular gap such that another friction disk is arranged respectively in this annular gap, which is supported in a torque-proof fashion but axially displaceable, and all of the partial rings and friction disks are axially clamped to each other.Type: ApplicationFiled: December 19, 2012Publication date: June 27, 2013Applicant: RINGSPANN GMBHInventor: RINGSPANN GMBH
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Patent number: 8104751Abstract: A device for holding a constructional unit (40) of a double clutch in a balancing machine, wherein the constructional unit (40) comprises a clutch cage (41) to be balanced, with a pivot bearing (45) and driving disks (46, 47), and contains a bearing mandrel (1), which has a first clamping device (24) for clamping the pivot bearing (45) rotatably bearing the clutch cage (41) to be balanced and a second clamping device (11) for clamping the driving disk (47). One of the clamping devices (11) is adjustable in respect of the bearing mandrel (1) in the axial direction by means of an operating device (22). The bearing mandrel (1) additionally has a third clamping device (29, 57) for clamping the driving disk (46), which is stationary or adjustable in respect of the bearing mandrel (1) in the axial direction by means of an operating device (34).Type: GrantFiled: April 4, 2007Date of Patent: January 31, 2012Assignees: Schenck RoTec Gmbh, RINGSPANN GmbHInventors: Karlheinz Timtner, Dieter Thelen
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Patent number: 7870940Abstract: A frictionally engaged free-wheel clutch with an exterior ring, an interior ring approximately concentric in reference thereto, and several clamping bodies arranged in the circular gap between the interior and the exterior ring, which block a rotation of the interior ring relative to the exterior one in one direction and release it in the opposite direction. Here, it is essential that the clamping body and/or the running paths of the interior and/or the exterior ring are provided with a friction-increasing coating.Type: GrantFiled: June 7, 2007Date of Patent: January 18, 2011Assignee: RINGSPANN GmbHInventors: Siegfried Jackwerth, Thomas Heubach
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Publication number: 20100326783Abstract: A free-wheel cage ring, having two annular flanged disks (1, 2; 11, 12) that extend essentially in the radial direction and that are connected to each other to form an axial intermediate space and that have, between themselves, a plurality of clamp bodies (4; 14) that are arranged so that they can pivot in the cage ring and that are biased in the coupling sense by at least one leg spring (6; 16; 26; 36), wherein the clamping bodies (4; 14) perform, under the effect of centrifugal force, a pivoting motion acting in the decoupling sense against the spring force, and at least two guide surfaces (5c, 5d; 15) are allocated to each clamping body (4, 14) in its axial extent, and these guide surfaces engage opposite end peripheral regions of the clamping body (4, 14), guide them at least in the peripheral direction of the flanged disks (1, 2; 11, 12), and have, at least on the radial inner side, a break through which the clamping bodies (4; 14) extend to a radially inner clamping surface.Type: ApplicationFiled: June 25, 2010Publication date: December 30, 2010Applicant: RINGSPANN GmbHInventors: Siegfried Jackwerth, Karlheinz Timtner, Ruprecht Maurer
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Publication number: 20070284208Abstract: A frictionally engaged free-wheel clutch with an exterior ring, an interior ring approximately concentric in reference thereto, and several clamping bodies arranged in the circular gap between the interior and the exterior ring, which block a rotation of the interior ring relative to the exterior one in one direction and release it in the opposite direction. Here, it is essential that the clamping body and/or the running paths of the interior and/or the exterior ring are provided with a friction-increasing coating.Type: ApplicationFiled: June 7, 2007Publication date: December 13, 2007Applicant: RINGSPANN GMBHInventors: Siegfried Jackwerth, Thomas Heubach
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Patent number: 7077246Abstract: A fall safety device is provided having a load-bearing rotor 2, which supports at least one locking member 6, which can be moved by centrifugal force and which is moved into engagement with at least one stop 7b of a stator 4 if a certain rotor speed is exceeded and blocks the further rotation of the rotor 2. The locking member 6 and/or the stop 7b is in active connection with a braking body 8, which undergoes a plastic deformation when engaging the fall safety device and damps the stopping process.Type: GrantFiled: May 27, 2004Date of Patent: July 18, 2006Assignee: Ringspann GmbHInventor: Karlheinz Timtner
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Publication number: 20050044973Abstract: An arrangement for driving a machine element (2), especially a sled, a tool holder, or the like, which can move at least generally in a straight line, through the use of a spiral gear, especially a threaded spindle/nut combination (3, 4) with the use of a Cardan-like or universal joint (5) with at least two joint halves (5a, 5b) is provided. The joint halves (5a, 5b) are connected to each other for exact positioning of the machine element (2) by several connecting members (25a, 25b) that are elastic in the circumferential direction but stiff in the direction of movement of the machine element.Type: ApplicationFiled: July 30, 2004Publication date: March 3, 2005Applicant: RINGSPANN GmbHInventor: Karlheinz Timtner
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Publication number: 20040262109Abstract: A fall safety device is provided having a load-bearing rotor 2, which supports at least one locking member 6, which can be moved by centrifugal force and which is moved into engagement with at least one stop 7b of a stator 4 if a certain rotor speed is exceeded and blocks the further rotation of the rotor 2. The locking member 6 and/or the stop 7b is in active connection with a braking body 8, which undergoes a plastic deformation when engaging the fall safety device and damps the stopping process.Type: ApplicationFiled: May 27, 2004Publication date: December 30, 2004Applicant: Ringspann GmbHInventor: Karlheinz Timtner
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Patent number: 6450693Abstract: A bearing arrangement for a shaft supporting a rotating tool is provided, with the shaft being rotatable on both sides of the tool at least indirectly in roller bearings, one of which can be removed for purposes of tool replacement together with an associated bearing sleeve slidable onto the free shaft end. The seating of the bearing sleeve, which is borne at least indirectly by the shaft, is formed by a conical outer surface tapering toward the shaft end. The bearing sleeve exhibit a conical borehole corresponding to the conical outer surface, and the bearing sleeve is radially expanded via a stop-limited axial shifting with respect to the conical outer surface by an amount to produce a specific level of reduced roller-bearing play.Type: GrantFiled: November 7, 2000Date of Patent: September 17, 2002Assignee: Ringspann GmbHInventors: Rainer Fuchs, Ruprecht Maurer, Karlheinz Timtner
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Publication number: 20010019003Abstract: A free wheel retaining ring has a plurality of clamping elements pivotably mounted and biased by at least one spring toward an engaging position, wherein the clamping elements are supported radially outwardly on the edge of the retaining ring and execute a swivelling motion acting toward a disengaging position, under the action of centrifugal force against the force of the spring. The free wheel retaining ring is constructed in one piece and has in its cylindrical region a plurality of windows following one after the other in the circumferential direction, in which the clamping elements are guided in the circumferential direction while simultaneously being supported radially outwardly.Type: ApplicationFiled: February 27, 2001Publication date: September 6, 2001Applicant: Ringspann GmbHInventors: Siegfried Jackwerth, Karlheinz Timtner
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Patent number: 5645149Abstract: A freewheel retainer ring with centrifugal force takeoff has two ring-shaped edge rings which are connected with each other by several axial connecting bolts and which mount clamping members between them. For this purpose, separate pockets are arranged respectively at both end faces of the clamping members. The pockets at least guide the clamping member in the circumferential direction, whereby one pocket is connected with one edge ring, and the other pocket is connected with the opposite edge ring.Type: GrantFiled: November 30, 1995Date of Patent: July 8, 1997Assignee: Ringspann GmbHInventors: Ruprecht Maurer, Karlheinz Timtner, Siegfried Jackwerth
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Patent number: 5353648Abstract: A torque transmitter comprising two members 1, 2 rotatable relative to each other and serving to transmit a torque, and which has the ability to continuously measure the transmitted torque. The transmitter includes a transducer ring 3, and a displacement measuring device 6 having at least two noncontacting sensors 4, 5 for detecting the axial position of the transducer ring 3 relative to a reference member 7. The members 1, 2 are inter-connected via transverse beams and connected with the transducer ring 3 via fork-like members, so that upon a torque being transmitted between the members 1, 2, the latter are rotated relative to one another proportionally to the torque, and the transducer ring 3 is axially displaced.Type: GrantFiled: April 2, 1992Date of Patent: October 11, 1994Assignees: Ringspann GmbH, Micro-Epsilon Messtechnik GmbH & Co. KGInventors: Franz Hrubes, Karlheinz Timtner
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Patent number: 5347866Abstract: To permit quick mounting and unmounting of a wheel (5) on a balancing machine, and rapid interchange of components of the balancing machine when wheels of different sizes arc, to be balanced, the shaft of the balancing machine has a conical surface (10) formed thereon, or is securely coupled to a first conical part (8), against which a radially expansible second conical part (9) can be engaged. The second conical part (9) has an outer cylindrical surface (12) for clamping in the center hole of a hub or wheel disk or the wheel (5) to be balanced. The second conical part (9) has an axially extending portion (9a), which terminates in a spring abutment (15, 16). A spiral spring (21) is placed around the extending portion, the other end of which engages against a radially directed leg portion (20, 24) of an angle ring (18, 25) which overlaps a radially extending stop (17, 22) formed on the outer conical part (9).Type: GrantFiled: April 1, 1993Date of Patent: September 20, 1994Assignee: Ringspann GmbHInventor: Ruprecht Maurer
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Patent number: 5314381Abstract: A detent arrangement is disclosed for the coupling pin of an overload element, particularly in an overload clutch, wherein a coupling pin is in form-locking engagement with the oppositely disposed clutch half, with such engagement being released when there is an overload; at its rear end, the pin is provided with the detent arrangement. This detent arrangement surrounds the rear pin end with a spring arrangement which is partially supported at the housing that accommodates it and otherwise at a collar of the coupling pin, with one end of the spring arrangement being supported by means of a slide ring and a plurality of locking elements that extend toward a cone envelope face of the coupling pin and a contact face of the housing.Type: GrantFiled: August 19, 1992Date of Patent: May 24, 1994Assignee: Ringspann GmbHInventor: Ruprecht Maurer
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Patent number: 5165288Abstract: The invention relates to an apparatus for measuring a torque, conducted through a rotatable machine element, by means of fork-shaped transmitter levers including tines which are connected with two parts which, when a torque is transmitted, resiliently rotate in relation to each other, and the fork handle of which is hinged on a transmitter ring, so that the relative rotation between the two previously mentioned parts generates an increased axial movement of the transmitter ring, which is detected as a measurement of the torque. To prevent an overload on the measuring device and breakage of its components in case of impermissibly high torque shocks, stops are provided which limit the relative rotation of the two parts which rotate in relation to each other during the transmission of torque to a value which corresponds to the maximally permissible stress on the material of the measurement apparatus.Type: GrantFiled: April 18, 1991Date of Patent: November 24, 1992Assignee: Ringspann GmbHInventor: Karlheinz Timtner
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Patent number: 5074180Abstract: To permit rapid axial relocation of cutter rollers or cutter wheels (2, 3; 11; 42; 78, 121) on supporting shafts (6, 7; 70, 71; 100), the cutter rollers are located on respective positioning or carrier rings (12, 41, 74, 75; 102, 120 130) surrounding the respective shafts, and are axially clamped in position by a rotatable operating ring (13, 22, 28, 40, 52, 88, 89; 107, 126, 138), rotatable about said positioning ring. The operating ring is rotatable, for example by being operator-accessible, at any circumferential position of the shaft, a hydraulically operated compression sleeve, or the like, so that the axial position of the cutter roller or wheel can be changed on the shaft regardless of the circumferential position of the shaft when it comes to rest after having cut a web into a ribbon, the width of which is to be changed.Type: GrantFiled: August 7, 1990Date of Patent: December 24, 1991Assignee: Ringspann GmbHInventors: Bernd Mayer, Ruprecht Maurer, Bruno Hotz
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Patent number: 5058438Abstract: The invention relates to a torque measuring instrument including first and second parts that rotate relative to one another upon torque transmission, the relative rotation of which is transformed by forklike levers into an axial displacement of an adjusting ring. The forklike lever is combined with the first and second parts into a single cast part.Type: GrantFiled: February 21, 1990Date of Patent: October 22, 1991Assignee: Ringspann GmbHInventor: Karlheinz Timtner
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Patent number: 5052843Abstract: The invention relates to an apparatus for coupling a shaft or a hub by means of a radially resilient bush, which can be radially clamped to the shaft or hub by axially tightenable clamping elements by exposing the clamping elements to a radially operative spring assembly; the release of the coupling is effected by means of a hydraulically- or pneumatically-actuated cylinder and piston arrangement. The nucleus of the invention is that the spring assembly is accommodated in the cylinder chamber acted upon by the pressure fluid.Type: GrantFiled: April 6, 1990Date of Patent: October 1, 1991Assignee: Ringspann GmbHInventor: Ruprecht Maurer
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Patent number: 5010992Abstract: To prevent torsion and bending forces from being applied to an operating ring disk system pressing together interdigited elements of a ring disk clutch, and to permit placement of ring disk portions close to each other for maximum engagement force being applied to the clutch, the ring disk system is formed of a plurality of parts (27, 34, 41 45) which are essentially sector-shaped, surround the clutch shaft, and are pivotable about a movable fulcrum (11, 20) which compresses the clutch disks (3, 5). The individually separate ring disk system parts or elements are in outer circumferential engagement to abut each other and to hold the parts in essentially clearance or play-free mutually engaged position, regardless of whether the rings disk system is flat or planar, or deflected into conical shape. Further, the parts are formed with an inner engagement arrangement to hold them in mutually aligned and supported radial position. The parts can, additionally, be held axially in position.Type: GrantFiled: January 3, 1990Date of Patent: April 30, 1991Assignee: Ringspann GmbHInventor: Ruprecht Maurer