Abstract: A pendulum damping device including a mounting to rotate about an axis; at least one pendulum body that includes first and second pendulum masses axially spaced relative to each other and movable relative to the mounting, the first pendulum mass being axially placed on a first side of the mounting and the second pendulum mass being axially placed on a second side of the mounting, and at least one member to connect the first and second pendulum masses and couple the masses; and at least one rolling member that guides the movement of the pendulum body relative to the mounting. The rolling member engages with a rolling track secured to the mounting and with a rolling track secured to the pendulum body and defined by the connecting member. The rolling member exerts an axial clamping force on one of the pendulum masses during movement of the one pendulum mass relative to the mounting.

Abstract: A damping device for damping vibrations of a motor vehicle transmission drivetrain. The damping device features a first element and a second element (2) rotationally movable around a rotation axis X, an elastic damping member having an elastic blade (13, 14) mounted rotationally integrally with the first element (3) and a rolling body movable with respect to the second element along a curvilinear trajectory over at least a predetermined angular sector (A). Movement of the rolling body along the curvilinear trajectory with respect to the second element is accompanied by a movement of the rolling body on the elastic blade, causing the elastic blade to flex.

Abstract: A planar flexure member for resisting rotation about a central axis thereof includes, in various embodiments, a central portion comprising a plurality of attachment points; and at least one serpentine flexure arm extending from the central portion in a plane. The arm(s) terminate in an arcuate mounting rail that includes a series of attachment points. The rails are positioned in opposition to each other to partially define and occupy a planar circular envelope radially displaced from but surrounding the central portion of the flexure member. A portion of the serpentine arms may extend to (or substantially to) the envelope between the mounting rails.

Abstract: A suspension component for coupling a touch panel to a substrate in a haptic touch panel assembly. The suspension component includes a flexible connector that extends between a first end adapted for attachment to the touch panel and a second end adapted for attachment to the substrate. The flexible connector includes a concave section, an axial side wall, and a mobility gap and is shaped to allow the touch panel to move with respect to the substrate with three or more degrees of freedom, thereby facilitating more accurate and dynamic haptic feedback.

Abstract: An elastic device for coupling between an aircraft landing gear wheel and a coaxial motorization member for motorization of the wheel. The elastic device comprises a plurality of arms to be rotationally coupled to the motorization member adjacent a first radially inner end and which are to be linked to the wheel adjacent their radially outer opposite end, the arms being substantially rigid in a plane perpendicular to the rotational axis of the wheel and flexible in directions substantially transverse to the plane.

Abstract: A stator coupling for the torsionally rigid connection of two components allows radial and axial relative movements within tolerance limits has a base surface (10) with first (18.1, 18.2) and second (28) lugs. The second lugs (28) are positioned at the straight-line edges between the assembly points (26, 42). Bent edges (30, 32) parallel to one respective edge are bent away at least twice, so that a flange (34.1, 34.2, 34.3, 34.4) surface-parallel to the base surface (10) is formed. Two second lugs, are positioned at edges following one another in the peripheral direction, and overlap with mutually facing ends of their flanges and these ends each together form one of a set of second assembly points (42.1, 42.2).

Abstract: A torsional vibration damper for a drivetrain of a motor vehicle having a substantially discoidal centrifugal flange and a plurality of centrifugal pendulum-type absorbers. Each centrifugal pendulum-type absorber includes a first pendulum mass and a second pendulum mass. The first pendulum mass is arranged above a first surface of the pendulum flange, and the second pendulum mass is arranged above a second surface of the pendulum flange. The first pendulum mass and the second pendulum mass are firmly connected to each other by means of at least two spacing bolts in each case. The pendulum flange has a plurality of cutouts in which the spacing bolts are guided. A second spacing bolt of a first centrifugal pendulum-type absorber and a first spacing bolt of a second centrifugal pendulum-type absorber are guided in at least one first cutout.

Abstract: A flexible coupling including two body members each having an internal flexible member to cooperate with a rotational shaft and an external connecting member interconnecting two body members with each other. In order to minimize the axial length of the coupling maintaining its high torsional rigidity but enabling for compensation of substantial shafts misalignments such as parallel, angular or skewed axial misalignment, the internal flexible member passes over the coupling axis forming cavities between the flexible member and internal walls of the external connecting member in a plane perpendicular to the coupling axis and is provided with at least one flexible section between the connecting member and the coupling axis, the flexible section being substantially parallel to the coupling axis.

Abstract: A torsionally flexible coupling comprises an inner part having a rotating shaft, an outer part extending around the inner part and arranged coaxially thereto, and spring elements or spring packs arranged between the inner part and the outer part and spaced in circumferential direction, wherein each spring element or spring pack is clamped at a radially outer end in a clamping support on the outer part, and a radially inner end is flexibly engaged with a corresponding groove on the inner part. In position of rest the spring elements or spring packs are angled relative to a radial direction passing through the respective clamping support and are inclined against the main direction of rotation of the coupling. Such an inclined position of the spring elements or spring packs allows a reduction of the portion of damping caused by friction so that damping can become predominantly hydraulic.

Abstract: Rotational coupling is provided having: a first carrier body with a first base section and a plurality of first coupling arms extending from the first base section spaced in a circumferential direction, each having a first coupling section jointly defining a first plane running concentrically and perpendicularly to a rotational axis, a second carrier body including a second base section and a plurality of second coupling arms extending from the second base section spaced in the circumferential direction, each having a second coupling section jointly defining a second plane running concentrically and perpendicularly to the rotational axis, first and second carrier bodies arranged such that the planes coincide, the coupling arms facing one another, alternately interengaging and circumferentially spaced, base sections oriented oppositely along the rotational axis, and each of the coupling sections coupled via elastic link elements to the coupling sections respectively adjacent on both sides.

Abstract: A drive plate for a torque converter including first and second plates operatively arranged to be attached to a torque converter and a drive unit. In another embodiment, each of the first and second plates further includes at least one first opening and at least one second opening operatively arranged to receive a first and second fastener, respectively. In yet another embodiment, the drive plate includes a plurality of component plates operatively arranged to be attached to a torque converter and a drive unit.

Abstract: A vibration damping device for a motor vehicle drive system includes a base body rotatable about an axis of rotation and a deflection mass arrangement having at least one deflection mass and a deflection path associated with the at least one deflection mass. The at least one deflection mass is movable along the deflection path when the base body rotates about the axis of rotation. The deflection path defines a radial outer area of a movement space in the base body in which the at least one deflection mass is movable. The base body includes a carrier element in which the movement space is arranged and a first closure element connected with and constructed separately from the carrier element and arranged at a first axial side of the carrier element for closing the movement space in a first axial direction.

Abstract: An elastic shaft joint is constituted of a joint member, a shaft member being fitted in a shaft of the joint member, and an elastic bush having a cylindrical inner sleeve fitted and fixed on the joint member, a cylindrical elastic member fixed on an outside surface of the inner sleeve, and a cylindrical outer sleeve fixed on an outside surface of the elastic member, for elastic torque transmission between the joint member and the shaft member, wherein the outer sleeve is fixed on the shaft member.

Abstract: A vibration damping device for a drive system of a motor vehicle, includes a deflection mass arrangement arranged in a base body which is rotatable about an axis of rotation (A). The deflection mass arrangement includes at least one deflection mass and a deflection path associated with the at least one deflection mass and along which the deflection mass moves during rotation of the base body about the axis of rotation (A). The deflection path has a vertex area and deflection areas on both sides of the vertex area. The deflection areas have a decreasing distance from the axis of rotation (A) as they proceed from the vertex area toward their circumferential end areas. A positive rolling arrangement is arranged between the at least one deflection mass and the deflection path which generates a rolling movement of the at least one deflection mass during the movement of the at least one deflection mass along the associated deflection path and thereby prevents a sliding movement of the deflection mass.

Abstract: A compact friction plate damper having a primary plate and a secondary plate, which interacts by means of a friction element. A speed-dependent control device is provided for the friction, wherein the friction device has a contact arrangement upon which force is to be exerted essentially radially. The friction control device comprises a spring element, which takes effect with rotational speed-dependent force on the contract arrangement in an essentially radial manner. In addition to this, the friction device interacts by friction with the secondary plate, and is mounted so as to be rotationally movable in relation to the primary plate by at least a small angle. Thus the friction control comprises a rotational speed-dependent coupling element between the primary plate and the friction device.

Abstract: A viscous damper mechanism 5 includes first and second input plates 18 and 19, a driven member 30, a spring chamber 17 and a undulated plate spring 23. The spring chamber is formed between the first and second input plates 18 and 19 and the driven member 30. The undulated plate spring 23 is disposed in the spring chamber, and is operable to connect elastically the first and second input plates 18 and 19 to the driven member 30 in the rotation direction and damp a torsional vibration. The spring chamber 17 is filled and sealed with powder solid lubricant.

Abstract: A torsional vibration damper with a plurality of transmission elements which are rotatable relative to one another about a common axis of rotation. The relative movement of the transmission elements carried out by the deflection of coupling elements which are displaceable between the transmission elements along at least one guide path in the circumferential direction and which are in a working connection with the two transmission elements for this purpose. The guide path which is provided on at least one of the transmission elements is provided with a curvature which serves to receive a coupling body which is provided at the other transmission element and which is preferably formed with its own curvature at least along its rolling area facing the guide path.

Abstract: A mode change switch for a power tool, which switch is moveable between at least two positions corresponding to different operating modes of the tool in which different components of the tool are brought into a meshing engagement. The switch comprises a manually operable driving member moveable between at least two positions in each of which it is adapted to be realizably restrained and a driven member which is adapted to be driven by the driving member between associated positions to directly or indirectly facilitate a change in operating mode. A spring engages between the driving member and driven member, to urge the driven member to follow the movement of the driving member. The switch is arranged so that a first end of the spring abuts a first pair of stop members and a second end of the spring abuts a second pair of stop members. One of each pair of stop members is located on the driving member. And the other of each pair is located on the driven member.

Abstract: An air valve assembly for use with a premixer for a gas turbine engine module. The air valve assembly includes a valve disk and a support plate having a valve aperture in which the valve disk is disposed for rotation, the support plate having aligned first and second shaft apertures through opposing support plate ends that define an axis of rotation of the valve disk. The assembly also has a first shaft having one end section rotatably supported in the first aperture and having another end section connected to the valve disk; a second shaft having one end section rotatably supported in and extending through the second shaft aperture and with a bearing end terminating outside the support plate, and also having another end section connected to the valve disk.

Abstract: A fuel pump drive gear assembly is provided which includes torsional absorption elements positioned between a drive gear and a fuel pump hub. The drive gear includes a plurality of apertures for receiving a plurality of projections formed on the fuel pump hub. The torsional absorption elements are positioned in the apertures between the projections and the drive gear so as to frictionally engage a surface of both the projection and the drive gear, thus creating a mechanical driving connection between the rotating drive gear and the fuel pump hub. The torsional absorption elements have adequate stiffness to provide the necessary torque to drive the fuel pump, while retaining sufficient flexibility to permit relative rotational movement between the driving gear and the fuel pump hub for absorbing the vibratory loads imposed upon the gear assembly by the fuel pump without compromising the timing between the fuel pump and engine.

Abstract: To reduce a frictional resistance generated between undulated ribbon-like springs and outer circumferential walls, a flywheel assembly is composed of a first flywheel 1, a second flywheel 3 and ribbon-like springs 18. A fluid chamber 17 is formed between the second flywheel 3 and the first flywheel 1. The undulated ribbon-like spring 18 is disposed within the fluid chamber 17. In one embodiment, a projecting ring portion 20a that projects beyond the other ring portions 20 is provided so as to contact with an outer circumferential portion 7a of the fluid chamber 17 in order to prevent the remainder of the spring from contacting the portion 7a of the chamber 17. In another embodiment, a mid-portion of the undulated ribbon-like spring is confined to restrict radially outward movement by a plate and axially aligned pins which prevent radial movement of portions of the spring.

Abstract: This motorized reduction gear includes a toothed wheel (1) for driving an output member mounted on its hub (4), and one or more damping springs (6) interposed between the wheel (1) and the output member; the damping spring(s) (6) is(are) flat and metal and formed of two flexible branches (7) which are symmetrical with one another with respect to a median plane; each branch includes a convolution, a first section (8) of which extends around the hub (4), is extended by a fold (11), and a second section (9) terminated by a radial segment (12), a flat (13) for bearing on a rib (17) of the wheel (1), and a claw (14) for holding the spring in the wheel (1), around the hub (4). When the window pane comes to rest in abutment at the end of its path, one of the branches (7) is compressed and moves closer to the other, damping out the halting in the rotation of the toothed wheel (1). This(these) spring(s) has(have) a small overall size and high operational stability.

Abstract: A flywheel assembly having a clutch disk and at least one flywheel includes the use of at least one undulated ribbon spring formed of an elongated metallic strip, folded in accordion fashion, having an arcuate shape and having a plurality of flat-spring loop sections symmetrically staggered along the arcuate shape. The spring is disposed in a fluid filled chamber within the flywheel assembly. The spring is compressed and expands in response to relative rotary displacement between adjacent parts within the flywheel assembly. The spring absorbs vibration from the adjacent parts within the flywheel assembly. Further, the spring further inhibits the flow of fluid within the fluid filled chamber further absorbing vibrations in response to rotary displacement between adjacent parts within the flywheel assembly. The spring may be disposed in a fluid filled chamber formed within the clutch disk or in other portions of the flywheel assembly.

Abstract: A steering shaft coupling comprising: an outer tubular shaft member, a coaxial inner shaft member slidably inserted within the outer tubular shaft member, the outer tubular shaft member having an inner peripheral wall and the inner shaft member having an outer peripheral wall, the inner peripheral wall and the outer peripheral wall having complementary shapes, the complementary shapes transmitting torque between the shaft members, and a biasing member between the inner shaft member and the outer tubular shaft member, the biasing member causing a force opposing the transmitted torque.

Abstract: A clutch friction wheel, especially for a motor vehicle clutch, comprises two coaxial parts which are mounted for rotation of one with respect to the other about a common axis, with an annular damper between them. The damper comprises two rings one of which is in contact with a surface of the first coaxial part, while the other is in contact with a surface of the other part. The two rings of the damper are joined together by elastic members. The rings of the damper are disposed in a groove formed in one of the two coaxial parts, and they are divided into at least two ring segments, each of which includes an equivalent element of each of the two rings.

Abstract: A damped driven disc assembly comprises a disc concentrically mounted with respect to a hub, wherein the disc is driven by engagement with a flywheel and the hub drives an output shaft. A plurality of pairs of beam springs have first ends secured to the disc and second ends secured to the hub at points angularly spaced, in one embodiment, about 180.degree. from one another and, in another embodiment, about 0.degree. from one another. In a specific preferred embodiment, the assembly includes three pairs of beam springs.

Abstract: A flywheel clutch assembly disposed between an engine and transmission includes an external damper positioned between a flywheel and a clutch housing. The external damper allows relative motion between the flywheel and the clutch housing, while elastically resisting relative motion in both the driving and coast modes. The clutch housing is relatively heavy and functions as an additional flywheel as it is being rotated by the main flywheel of the assembly. The clutch mechanism disposed within the housing includes a rigid driven disk which assures minimum inertia in the drive line. In one specific aspect of the invention, the damper is comprised of a plurality of arcuate, nested beam springs pivoted at one end to the flywheel and at the other end to the heavy cover enclosing the clutch assembly. The resulting flywheel clutch assembly with the external damper disposed between the flywheel and clutch provides improved shiftability while minimizing rattle in both the idle and drive modes of the drive line.

Abstract: A compensating coupler uses spring coupling legs and tabs to connect a rotary (reciprocating) input drive to a rotary (reciprocating) output drive. The coupler exhibits very low backlash and compensates for misalignment between the input and output drives.

Abstract: A flexible coupling formed from sheet material and having preselected stiffness characteristics is incorporated between an engine output member and an input member of a mechanism to reduce the linear vibration levels of the system in use and to accommodate a preselected amount of misalignment therebetween. The flexible coupling has radially outer and inner edge portions, and a formed intermediate portion connecting them which in cross section has a generally truncated V-shape. A preferred embodiment has an annular body with the intermediate portion thereof having conical outer and inner walls, a relatively flat end wall, and blended corners connecting the walls and edge portions. When used between a diesel engine and an electric generator set the formed flexible coupling shifted the major structural resonances away from the normal operating range and greatly reduced the linear vibration levels thereof.

Abstract: A sheet containing the reverse image of printed material on its back side is appropriately positioned to match the blank portions of a conventional check form, so that such material can be transferred to the check by pressing on the front side of the sheet to deposit the printed material on the check. Depending on the specific selection of printed material used, the resulting check may contain all the information required to make a negotiable instrument except, for example, the date and signature, which are left for the maker to insert. The sheet containing such preprinted material may be combined with a statement of account received periodically by a customer from a business entity.

Abstract: A tire lift/carrier unit has a sheet metal housing forming an enclosure and having parallel spaced walls supporting a rotatable shaft which supports a rotatable spool formed by a set of sheet metal plates. A flexible cable has one end connected to the spool and its opposite end connected to a tire support member, and the plates are spaced closely together to define a track slightly wider than the cable so that the cable wraps on itself in a spiral overlapping manner. A ring gear is mounted on the spool and surrounds an internal drive gear supported for orbital movement by an eccentric cam member rotably supported by the shaft. The cam member is rotated by the shaft through a spring biased slip clutch mounted on the shaft.

Abstract: A flexible coupling for coupling a drive member with a driven member has a supporting plate to which a first pair of flexible plates and a second pair of flexible plates are fixed in such a way that the former extends in parallel in one direction and the latter extends in parallel in a direction opposite the one direction. To free end portions of the flexible plates, a first and second joint members for connecting the drive and driven members to the flexible coupling, respectively, are connected. When there is a dis-alignment between the axes of the drive and driven members, a bending force is applied to the flexible plates to flex the same, thus absorbing the axial offset therebetween. In this case, since the rotational force to be transmitted is applied in the width direction of the respective plate members, they can be rigid against the rotational force to be transmitted and are hardly distorted thereby.

Abstract: A torsional vibration damper for the driven plate of a friction clutch comprises a hub, a flange extending radially out from the hub and an outer member comprising an annular side plate arranged to one side of the flange and having a central aperture such that the side plate surrounds the hub with a clearance. The side plate is capable of limited angular movement relative to the flange with circumferentially directed resilient means acting between the flange and the side plate to control the angular movement. A friction damper is provided between the hub and the side plate and comprises a resilient friction element supported in the central aperture of the side plate and bearing against the outer surface of the hub.

Abstract: The illustrated embodiment which is in the form of a winch (or hoist) comprises a reel including a spool and embodying a portion thereof through which it may be driven for its raising and lowering functions. The reel mounts in bearing relation to a drive shaft between parallel relatively closely spaced side walls of its housing. This embodiment features an overload clutch including a drive plate mounted for rotation with said shaft within said housing. The drive plate nests within a shallow cup-shaped plate firmly and resiliently coupled by springs, parts of which have an interfit relation with portions of the bounding wall. Upon rotation of the shaft the nature and direction thereof is transmitted through the clutch and successive drive transmission elements to the portion of the reel provided for this purpose.

Abstract: A dry clutch disc wherein an outward cam extending radially outwardly is formed on an output-side spline hub, input-side side plates are disposed on both sides of the cam, a leaf spring facing on a cam surface and elastically radially outwardly deformable by means of the cam is equipped between the input-side side plates, and a stopper made of elastic material touchable on the leaf spring at the time of its radial outward deformation is provided on the side plates with a fixed distance kept apart from the leaf spring radially outwardly.

Abstract: A disc clutch, having a hub flange of a spline hub is divided into an internal flange with hub and an external flange which are meshed each other through teeth provided on adjoining circumferences of both with circumferential clearances kept between the teeth, a pair of sub plates formed solidly with the external flange, leaf springs between the sub plates and the internal flange interconnecting the internal and external flanges. Second and third springs function in between the external flange and a clutch plate and retaining plate provided on both sides thereof.

Abstract: A flexible coupling for drivingly connecting driving and driven members and for accommodating both angular and endwise misalignment of such members comprises a plurality of quadrilateral flex frames arranged face-to-face along the central axis of the coupling. The two end frames are connected respectively to the driving and driven members through opposite corner portions of each such frame. Among the flex frames themselves, each frame is connected to the next adjacent frame by having two of its opposite corner portions rigidly connected to two opposite corner portions of the adjacent frame.

Abstract: A displacement machine operating according to the spiral principle has at least one parallel motion guide device provided to ensure a torsionally rigid relative movement of two displacement elements.

Abstract: A governor weight retainer assembly for a fuel pump in which a flexible connection is provided between the governor weight retainer and the hub on which the weight retainer is mounted. The flexible connection is a mechanical construction which has elongated spring elements supported on the hub as chordal elements, and roller elements are mounted on the weight retainer for limited travel in a circle on the chordal elements. The roller and chordal elements thus serve as cushion means between the retainer and hub.

Abstract: The illustrated embodiment which is in the form of a winch (or hoist) comprises a reel including a spool and embodying a portion thereof through which it may be driven for its raising and lowering functions. The reel mounts in bearing relation to a drive shaft between parallel relatively closely spaced side walls of its housing. This embodiment features an overload clutch including a drive plate mounted for rotation with said shaft within said housing. The drive plate nests within a shallow cup-shaped plate firmly and resiliently coupled by springs, parts of which have an interfit relation with portions of the bounding wall. Upon rotation of the shaft the nature and direction thereof is transmitted through the clutch and successive drive transmission elements to the portion of the reel provided for this purpose.