Abstract: A coil spring includes a plurality of primary wire coils and a plurality of secondary wire coils, the primary and secondary coils being contiguous and differentiated from one another by a dimensional size in order to provide variable force and variable deflection.

Abstract: The method of easily and securely retaining components strung on a bead line by placing a portion of the bead line between coil members of a tension spring comprises applying torque action to leverable members of the tension coil between the thumb and index finger of the user's hand to spread apart contiguous coil members of the spring, placing a portion of the bead line between a pair of coil members which had been spread apart, releasing the torque action from the leverable members, and allowing coil members to close and securely maintain the portion of bead line in position on the coil spring in a manner to resist removal therefrom.

Abstract: The disclosure relates to a spring assembly for use in a parking brake system that solves problems associated with conventional parking brake systems. The disclosed spring assembly imparts a minimum force (e.g., tensile force) onto the parking brake cable of the parking brake system when the parking brake is applied. The spring assembly comprises a sliding collar, a wire ring located about the exterior diameter of the sliding collar, a locking collar, a spring and a sleeve for receiving the aforementioned components.

Abstract: A fiber-reinforced composite spring including a spring wire that includes a core having a plurality of fiber tows that are twisted about a longitudinal axis to create a contoured core surface, and an outer layer of resin that is substantially devoid of said fiber tows, wherein said outer layer has a thickness that varies along the longitudinal axis to form a generally uniform outer surface about the core.

Abstract: A mattress construction with a stranded wire spring is disclosed. The stranded wire spring can be designed with the same performance characteristic as a conventional single strand coil spring, but at a lower manufacturing and material cost.

Abstract: A compression wave spring assembly including a base and a compression spring with three wave regions that are formed from a continuous elongate flat wire strip. The first wave region begins at one end of the spring with a terminal wave. The waves of the first wave region have a constant amplitude. The second wave region is positioned adjacent to the first wave region. The wave amplitude of the second wave region varies from the first wave amplitude to zero. The third wave region begins where the second wave amplitude reaches zero. The third wave region includes a zero amplitude thereby forming a flat circular shim end. The base assembly includes a recess that receives and supports the terminal wave at the non-shimmed end of the spring.

Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide.

Abstract: The invention comprises a vehicle strut assembly. A strut has a first seat mounted to the strut and a second seat mounted to a vehicle body. A spring is mounted between the first seat and the second seat and is disposed around the strut. The spring has a compressed state and an uncompressed state. In the compressed state, the spring has a middle portion that defines a spring centerline. In the uncompressed state, the spring has ends portions extending towards opposite sides of the spring centerline.

Abstract: A lower spring sheet has receiving portions on a sheet surface that supports a coil spring. Thus the sheet surface and a spring end portion of the coil spring come into contact discretely. The contact positions between the coil spring and the sheet surface maintain unchanged, however a undulated portion the spring end portion may have due to the manufacturing tolerance is extended when the coil spring is compressed.

Abstract: A coil spring includes a plurality of primary wire coils and a plurality of secondary wire coils, the primary and secondary coils being contiguous and differentiated from one another by a dimensional size in order to provide variable force and variable deflection.

Abstract: A spring (4) made up of two leaves (41, 42) interconnected via a bend (40) so that, at rest, the leaves form an acute angle, said leaves being elastically deformable relative to each other by pivoting about the bend, said spring being characterized in that it is further provided with energy accumulation means (43, 44) imparting to the spring initial resistance-to-deformation having a resistance threshold that must be overcome in order to continue suddenly to move the two leaves towards each other.

Abstract: A spring includes at least one biasing element, a first member and a second member. The at least one biasing element is integrally formed with the first member and the second member and adapted to bias the first member and the second member either toward each other or away from each other. A mounting element extends from the at least one biasing element. This enables the at least one biasing element to be suspended from a support structure. The provision of a mounting element extending from the biasing element enables the spring to be suspended from a support structure.

Abstract: A spring seat isolator/damper is employed with a coil spring having flexible modes corresponding to frequencies of loading causing significantly higher dynamic stiffness amplitudes for the spring. The spring seat isolator/damper has an elastomeric member with a spring seat isolator portion and a mass damper portion, and with the spring seat isolator portion adapted to mount to and receive loads from a vehicle suspension. A damper mass operatively engages the mass damper portion of the elastomeric member such that the damper mass and the damper portion of the elastomeric member have a natural frequency that is substantially equal to at least one of the plurality of flexible modes of the coil spring. This damper, then, will substantially reduce the dynamic stiffness of the spring for that flexible mode.

Abstract: A spring element has a substantially cylindrical housing (125) and at least one spring (128) arranged therein. At least one guidance member (129) that radially braces the spring (128) is arranged between an outer side of the spring (128) and an inner wall of the housing (125).

Abstract: A coil spring 10 having a plurality of windings 12, at least two of the windings 12 being hinged together.

Abstract: A method for mutually connecting at least two elongated elements, such as concrete renforcement rods, by means of a connecting member in the form of a winding spring with a center line, which winding spring is screwed on and around the elongated elements at the connecting place between the two elongated elements by rotation on the center line while expanding by contact with circumferential surfaces of the elongated elements, wherein the selected winding spring is a spiral or screw spiral shaped spring, of which at least one winding has a diameter smaller than the largest transverse dimension at the connecting place, determined by the elongated elements to be connected, which winding spring is placed with its center line at an angle with respect to the elongated elements and is screwingly moved from a thus obtained starting position in the direction of the elongated elements, which screwing movement is continued until at least one winding is diametrically expanded.

Abstract: A lower spring sheet has receiving portions on a sheet surface that supports a coil spring. Thus the sheet surface and a spring end portion of the coil spring come into contact discretely. The contact positions between the coil spring and the sheet surface maintain unchanged, however a undulated portion the spring end portion may have due to the manufacturing tolerance is extended when the coil spring is compressed.

Abstract: The present invention is directed to a helical compression spring for a vehicle suspension to be compressed between an upper seat and a lower seat. The spring is formed to provide an end coil center line connecting the centers of an upper end coil and a lower end coil to be offset to a coil axis of a body portion of the spring. A pitch of the lower end coil is set to tilt a lower end plane of the spring at a first predetermined angle to the lower seat in a direction for shortening the longitudinal length of one side of the spring closer to the end coil center line than the coil axis, in an unloaded state of the spring, and/or a pitch of the upper end coil is set to tilt an upper end plane of the spring at a second predetermined angle in a direction for shortening the longitudinal length of the other side of the spring closer to the coil axis than the end coil center line, in the unloaded state of the spring.

Abstract: A damped sleeve having a damping layer attached to a backing layer is disclosed. The damping layer is formed from a non-woven energy absorbing felt and is attached to the backing layer by lines of attachment which define pockets between the layers. The layers are positioned coaxially around an axis and define a central space for receiving elongated items to be protected from vibration. Resilient filamentary support members are arranged between the damping and backing layers to support the layers radially in spaced relation relative to the axis. The support members may be helically wrapped around the axis, circumferentially positioned or arranged in a zig-zag pattern transversely to the axis. A slit in the layers provides access to the central space.

Abstract: This invention relates to a resilient return having a fixing seat, and to an elongate body fitted with such resilient return. The resilient return, particularly a spring in accordance with the invention, comprise a seat (9) capable of fitting into a receiving cavity, made in at least one wall (10) of an elongate element (29), typically in the radially-inner face of the wall of a tubular element, of a sleeve or similar. The present invention mainly applies to the motor car industry and especially to the design and manufacturing of braking devices.

Abstract: The invention discloses a spring unit for use in a sprung unit such as a bed, divan bed, mattress, or other upholstered unit, the spring unit comprising a pocket of fabric or other suitable material and having at least two sub-pockets, each of said sub-pockets containing a resilient member. The pocket will preferably be divided across, laterally, or diagonally so as to form said at least two sub-pockets. The spring unit may be formed with two sub-pockets or three or more sub-pockets each containing a resilient member. The sub-pockets may be of equal length or of differing lengths, and the resilient members will preferably be springs which may be of equal lengths or of differing lengths and of equal or differing rates of compression. The pocket will be divided by fabric or other suitable material which is integral with the pocket or by discrete piece(s) of fabric or other suitable material secured to said pocket to form said sub-pockets.

Abstract: This invention mainly relates to resilient return means having a fixing seat, and to an elongate body fitted with such resilient return means.

Abstract: An adjustable casing for helical spring mainly includes a male and a female case, and a rotation member. A helical spring is enclosed in the casing with an end of fixedly connected to a fixing seat provided at a bottom center of the female case, and another end located in the male case. The rotation member is provided around an outer or an inner surface with a plurality of stoppers that are adapted to engage with coils of the helical spring. When the rotation member is rotated, the number of active coils of the spring subjected to a compressing or a stretching force is changed, and the modulus of elasticity of the helical spring is adjusted, accordingly. The helical spring mounted in the adjustable casing may have higher flexibility in its usage to meet requirements of different machines.

Abstract: A compound spring is disclosed that has the benefit of a low preload force and a relatively high natural frequency. In its most basic form it is a helical spring having a cylindrical section and a tapered section. In the preferred embodiment the preload force is linear with increased spring deflection and the spring is unaffected by the harmonics of the surrounding machine. Deflection in the axial direction is a small percentage of the free length. In the preferred embodiment the wire cross-section is constant.

Abstract: A fiber-reinforced composite spring comprising a coiled spring wire that comprises a fiber-reinforced core having longitudinal axis, where the core comprises core-reinforcing fiber tows that are twisted about the longitudinal axis of the core, and an outer layer surrounding the fiber-reinforced core, where the outer layer comprises a resin that is devoid of fiber tows.

Abstract: A spring includes intermediate coils of larger and smaller diameter so that upon compression of the spring the smaller diameter coil may nest within one of the large diameter coils, thereby reducing the overall length of the spring without causing the coils to come in contact with one another. The spring may be used in automotive vehicle suspension assemblies and other applications. The axis of the smaller coil may be offset from the axes of the other coils, thereby providing a spring in which one side is softer and the other is stiffer, so that upon compression the spring bows or deflects along a curved line. In addition to the small diameter coil being offset from the remaining coils, the wire diameter of one or more of the coils may be changed to affect the local stiffness of the spring.

Abstract: A method of making the load height of a suspension coil spring more consistent uses different sized isolators to make a combined spring and isolator height more consistent. The isolator or isolators may be attached to the top or the bottom, or to both the top and bottom of a spring. The load height of a spring is measured. Isolators of varying heights are attached to the springs to achieve more consistency in the overall load height.

Abstract: A single spring unit includes a multi-helical spring formed of composite material. The single spring unit includes a multiple layers of composite material disposed in a first helical configuration, and multiple layers of composite material in a second helical configuration interwoven with one another, and coupled together to form the single spring unit.

Abstract: A spring-driven pusher device for a forward, side, top, or up feeding merchandise dispenser having an adjustment mechanism for setting a desired pushing force. The adjustment mechanism is utilized to increase and/or reduce the tension of the windings of the coiled end of a spring or strip of coiled metal carried on the pusher device. The tension in the windings is increased if greater pushing force is desired, or decreased, if less pushing force is desired. Since the desired pushing force can be set, the same spring-driven pusher device can be utilized to feed various different products, regardless of size, shape, weight or surface texture.

Abstract: A noise reduction assembly includes a substantially annular isolator and a substantially annular noise guard extending therefrom. The isolator and the noise guard sandwich a first convolution of a vehicle suspension coil spring. The noise guard is aligned to the coil spring such that the noise guard extends between the first and second convolutions between 1.0 and 1.4 turns of the coil spring to prevent contact in this area.

Abstract: A composite cord assembly is used to fabricate high performance structures. In one form the cord assembly is composed of an inner composition of structural fibrous material and an external cladding. Resin is impregnated into the fibrous material. The external cladding functions as a containment device for liquid resin material during the fabrication of structural parts. The cured resin surrounds the fibrous material, and provides support to the fibers, as well as load transfers between the fibers. In addition, the cord assembly may contain an inner core and other enhancements to promote resin flow through the assembly during the resin infusion/injection process used for part fabrication. Applications for composite cord assemblies of this type include composite coil springs, structural fencing, golf club shafts, fishing rods, and other products composed of structural rods and tubes of simple or complex shapes.

Abstract: A vehicle bumper system includes a multi-strand cable secured to opposing plates.

Abstract: A coil spring (1) and support bearing (2) arrangement for suspension struts 3 with a shock absorber, supporting a steering knuckle of an automobile has a rolling-contact bearing (7), with an axis (x); a receiving body (6), arranged below the rolling-contact bearing (7) in which the rolling-contact bearing is inserted; and a coil spring (1). The coil spring (1) has a force application line (f), which is offset relative to the axis (x) of the rolling-contact bearing (7) at an angle (a). The coil spring (1) has a first portion (8), which, starting from the winding end (17), winds around the receiving body (6). The first portion (8) abuts the receiving body (6). The winding end (17) of the coil spring (1) is arranged in the area of the plane E1 formed by the force application line (f) and the axis (x).

Abstract: A shock absorbing structure includes a body defined by a plurality of adjacent coils. The coils are resilient and flexible when exposed to a load applied substantially off-axis, or perpendicular to the axis of the body. In use, the body is positioned so that the coils deflect in directions substantially normal to the axis of the body. In this way, the body acts like a shock absorber, but unlike a coil spring, the shock is absorbed by the laterally inward or outward flexing of the coils, rather than the extension or compression of the coils themselves along their axis. The body can be formed by coiling a monofilament strand which is made of a polymeric material, such as nylon. Any number and types of articles can be made by incorporating the shock absorbing structures of the present invention, including, for example, articles of footwear, impact resistant bumpers, tires, and vibration dampening pads.

Abstract: The present invention relates to a spring supporting structure of a linear compressor which is capable of reducing the horizontal length of the compressor by reducing the overall length which adds the length of an inner resonance spring to the length of an outer resonance spring by placing at least three inner resonance springs and outer resonance springs so as to cross each other to the cylindrical direction vertical to the center line of a inner/outer spring supporters placed between an inner stator assembly and an outer stator assembly fixedly formed on a frame elastically installed inside of a casing in order to make the magnet assembly perform the linear reciprocating motion, and placing the part of the elastic region of the certain inner resonance spring so as to overlap with the elastic portion of the adjacent outer resonance spring.

Abstract: A symmetrical disk-shaped spring having two or more symmetrical, spiral-shaped webs connecting inner and outer rings is disclosed. The webs are defined between symmetrical, spiral-shaped slots that extend between the inner and outer rings. The spiral-shaped webs apply axial forces when the inner and outer rings are displaced axially relative to the each other. The symmetrical disk-shaped spring is made by machining a flat, disk-shaped piece of material. The spiral-shaped slots are machined through the thickness of the material, leaving the spiral-shaped web material to connect the outer and inner rings.

Abstract: A pressure plate assembly for a friction clutch includes a housing arrangement; a pressure plate held in the housing arrangement with freedom to rotate in the same direction as that in which a rotational axis extends; a stored-energy element; and a wear-compensating device, acting in the path of force transmission between the stored-energy element and the pressure plate and/or between the stored-energy element and the housing arrangement, where the wear-compensating device has at least one adjusting element which can be moved in an adjusting direction to compensate for wear and at least one spring element, which pretensions the minimum of one adjusting element for movement in the adjusting direction, where at least certain areas of the minimum of one spring element extend in the circumferential direction relative to the rotational axis, and where the minimum of one spring element is provided with a support arrangement, which passes through at least certain areas of the spring element, the support arrangement

Abstract: A shock absorber for an automobile which exhibits a vibration damping effect in a wide range of a frequency, while suppressing generation of frictional noise. The shock absorber for the automobile has a buffer member interposed between parts. The buffer member has a laminated structure including a plurality of vibration damping layers each having a peak of loss tangent tan&dgr; in a range of a frequency which is different from others and surface layers made of thermoplastic resin.

Abstract: The present invention is directed to a curved helical compression spring having a plurality of coils along a curved coil axis. Each coil constituting the helical compression spring is increased and decreased in diameter, and the order of the increased diameter and the decreased diameter of each coil is reversed at a predetermined position on the longitudinal axis of the helical compression spring, so as to provide the curved coil axis, such as the coil axis curved in C-shape. For example, one section of each coil having approximately a half of the circumference of each coil, which is divided by a plane including the coil axis, is increased in diameter, whereas the other one section of approximately a half of the circumference of each coil is decreased in diameter. The curved helical compression spring may be mounted on a vehicle suspension.

Abstract: A method of making a spring are described. The spring is made by etching or cutting at least one spiral arm in a flat substrate leaving residual material around the arm. The intermediate residual material is either pushed or lifted to form a conical spring.

Abstract: A coil spring assembly for positive control of the bending of the coil spring having a curved bend control member, which is either a tapered insert member positioned in the coil spring or alternatively a curved exterior surface positioned outside the coil spring and so positioned, such that the spring on bending will contact the curved bend control member and will progressively distribute the bending force over a plurality of individual coils of the spring and thereby mitigate breakage of the spring.

Abstract: The present invention is directed to a helical compression spring which is mounted on a vehicle body to be compressed between an upper seat and a lower seat. The spring has a coil axis that is substantially curved at a predetermined radius of curvature in an unloaded state of the spring. A pitch of a lower end coil of the spring is set to tilt the end plane of the lower end coil at a first predetermined angle to the lower seat in the direction for shortening the longitudinal length of the spring at the inside of the curvature, and/or a pitch of an upper end coil is set to tilt the end plane of the upper end coil at a second predetermined angle to the upper seat in the direction for shortening the longitudinal length of the spring at the outside of the curvature. The coil axis of the spring may be substantially curved in accordance with at least two radiuses of curvature in the unloaded state of the spring.

Abstract: A wire rope isolator having a pair of opposed mounting blocks, each having parallel holes formed therein so that the holes in one block are perpendicular to holes in the second block. One block contains two parallel holes passing through the block while the second contains three parallel holes, one of which passes through the block and the remaining holes being blind holes passing inwardly from opposite sides of the block. One end of the rope is secured in one blind hole and the rope is threaded through the block in a clover leaf pattern and the opposite end secured in the other blind hole.

Abstract: The present invention is directed to a curved helical compression spring having a plurality of coils along a curved coil axis. Each coil constituting the helical compression spring is increased and decreased in diameter, and the order of the increased diameter and the decreased diameter of each coil is reversed at a predetermined position on the longitudinal axis of the helical compression spring, so as to provide the curved coil axis, such as the coil axis curved in C-shape. For example, one section of each coil having approximately a half of the circumference of each coil, which is divided by a plane including the coil axis, is increased in diameter, whereas the other one section of approximately a half of the circumference of each coil is decreased in diameter. The curved helical compression spring may be mounted on a vehicle suspension.

Abstract: A bedding or seating product comprising a spring core made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The pocket of fabric surrounding each of these coil springs is divided into at least two subpockets by at least one line of attachment of opposite sides of the fabric to each other. Each of these subpockets contains one portion of the coil spring, thus resulting in a multilayered product.

Abstract: A round wire wave spring is formed from a single turn of round wire with a plurality of distinct waves defined therein, each of the waves having respective crest and trough portions that bear against opposing parallel surfaces of two work elements. The round wire wave spring may fit in a simple to form semi-circular groove, that is slightly greater in diameter than the free diameter of the round wire wave spring.

Abstract: A wire rope isolator includes a wire rope and a pair of mounting blocks. The mounting blocks comprise of a pair of cylindrical elongated end flanges that are connected tangentially to each other by a web that has a thickness that is less than the diameter of the flanges thereby allowing the lower section of each flange to extend downward from each web. A hole passes axially through each flange. Wire rope is passed through each flange hole so that the lower surface of each web faces that of the other web and the pair of flanges of one mounting block are offset 90° to the pair of flanges of the opposing mounting block. Four U-shaped half loops of wire rope, with sufficient slack to impart elastic qualities to the wire rope, are formed. The U-shaped half loops extend outward at angles of about 45° from the mounting blocks in a cloverleaf formation.

Abstract: A sign stand having an improved resilient member to dissipate the torque-moment created by wind forces acting against a sign stand. The resilient member includes a coil spring, at least one plug having a helical protrusion and at least one mounting bracket. The plug is threaded into an end of the coil spring and the mounting bracket is fastened to the plug. A locking tab on the mounting bracket engages a flat ridge machined into at least one coil of the coil spring. This configuration eliminates relative rotation between the coil spring and the mounting bracket and as such, permits the effective transmission of torque into the coil spring while eliminating the potential for failure at the spring/bracket joint due to fatigue, fracture or mechanical loosening. The design of the resilient member also permits the servicing of each component as well as substantial weight reductions in the base of the sign stand.

Abstract: A suspension for a vehicle wheel includes at least one helicoidal spring and at least one flexible retaining and connecting armoring, which in working position, stresses a portion of the spring by maintaining it compressed to obtain two different stiffness curves.

Abstract: A circular multi-wave composite compression spring (10) is formed from a carbon fiber (58) reinforced laminate. The circular compression spring (10) is comprised of unidirectional graphite fibers (58) encased in a polymeric resin of generally rectangular cross-section such that adjacent crests (14) and troughs (16) of the waves in adjacent turns (12) of the spring (10) contact each other along a radial line generally extending from the longitudinal axis (30) of the spring (10). The line contact provides for increased fatigue life and more stable loading of the spring (10) under compression. The carbon fiber reinforced laminate provides comparable strength characteristics similarly configured springs fabricated from conventional materials while providing significantly reduced weight. Furthermore, the composite spring (10) offers increased performance parameters such as increased linearity response over a wider spring deflection range and with insignificant hysteresis.