序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 DEVICE AND METHOD FOR PRODUCING A SPRING MADE OF FIBER COMPOSITE MATERIAL US14652284 2013-12-06 US20150330471A1 2015-11-19 Werner HUFENBACH; Martin LEPPER; Jens WERNER; Christian KOEHLER; André BARTSCH
The invention relates to a method for producing a spring made of fiber composite material, in which a laminate strand which is formed from fibers of fiber composite material and is impregnated with a matrix material that can be consolidated is reshaped into a spring geometry. The invention also relates to a device for carrying out the method. On the method side, it is proposed that, prior to reshaping the laminate strand (2), a strand-shaped pre-product (20) is formed by applying a deformable protective jacket (16), which encloses the laminate strand (2), in a continuous application process. On the device side, it is proposed that an application unit (15) for forming a protective jacket (16) around the laminate strand (2) is arranged downstream of the processing device (1) in the transport direction of the laminate strand (2).
82 Method of Making Chamber with Tensile Member US13460710 2012-04-30 US20120211147A1 2012-08-23 Zvi Rapaport; Darren C. Davison
A fluid-filled may include including an outer barrier, a tensile member, and a fluid. The tensile member may be located within barrier and formed from a textile element that includes a pair of spaced layers joined by a plurality of connecting members. A method of manufacturing the chamber may include locating a textile tensile member between two polymer elements. Pressure and heat are applied to the tensile member and the polymer elements in a first area and in a second area. The pressure is greater in the first area than in the second area. In addition, the polymer elements are bonded together around a periphery of the tensile member.
83 SEGMENTED FIBER COMPOSITE LEAF SPRING AND METHOD FOR PRODUCING THE SAME US12094148 2006-11-04 US20090256296A1 2009-10-15 Clemens Aulich; Rainer Förster; Heiko Kempe
Leaf spring (1) for a wheel suspension on a motor vehicle is produced from a fiber composite material. Leaf spring includes a central longitudinal section (3) and two adjoining axial end sections (10, 11) tapered in relation to the width of the leaf spring. Resin-impregnated unidirectional fibers (23) extend axially, without being cut, between the axial ends (4, 5) of the leaf spring (1). An unfinished leaf spring (2) includes axial end sections (10, 11) with a substantially V-shaped recess or final geometry, thereby forming two legs (8, 9) that extend at angles to the longitudinal extension of the unfinished leaf spring (2), said legs (8, 9) resting closely against each other in the finished leaf spring (1). Individual elongate segments (6; 13, 14) of substantially identical geometry which are separately produced as fiber composite bodies and which are assembled before being cured form the leaf spring (1, 2).
84 Method of producing a spring wire and wire thus produced US10571264 2004-09-08 US20070084181A1 2007-04-19 Max Sardou
Method of producing spring wires shaped as a cylinder. The wire includes at least one first plurality of layers of wound fibres, the layers being disposed on top of one another and impregnated with a matrix. The first plurality of layers includes at least two stacked layers of fibres which are wound in opposing directions along two coaxial helices around the same axis to the left and right thereof respectively. The tangents to the two helices together with the axis (10) form respectively two angles having values βx−1 and βx which are respectively equal to Δ+kγ and −Δ−kγ, γ being a function of the value of the modulus of elasticity for the spring to be produced and k being a factor of between 0 and 1. The method is suitable for the production of helical cylindrical-type spring wires for the suspension systems of motor vehicles.
85 Method of producing a lordosis support US10087456 2002-03-01 US07120984B2 2006-10-17 Hermann W. Rutsch
A method of producing a lordosis support (12) with a supporting element (22) of plastic of adjustable curvature at rods (18) of a lattice mat (10), formed by longitudinal and transverse rods (14, 16, 18), wherein the rods (14, 16, 18) are introduced into an injection mold (42, 44) for the supporting element (22) and, during the injection molding of the supporting element (22), are embedded in the latter.
86 Machine for making a coil in a length of thermoplastic tubing US10299117 2002-11-19 US06716020B2 2004-04-06 Thomas E. Hargreaves
A machine and method for forming a spring coil in a length of hollow, cylindrical thermoplastic tubing comprises clamping the ends of a predetermined length of cylindrical thermoplastic tubing between first and second opposing spaced clamping members. In the machine, these clamping members include aligned first and second sections of a mandrel. These first and second clamping members then are rotated relative to one another by a predetermined amount selected to be slightly in excess of 360°, while the mandrels are simultaneously moved toward one another, to shorten the distance between the ends of the length of tubing, while the coil is formed. At the end of this relative rotation, the mandrel sections engage one another. The clamped tube, with the coil now formed around the mandrels, is rotated and simultaneously heated to the thermosetting temperature of the tubing. After a sufficient time to establish thermosetting of the coil, the heat is removed. Rotation continues while the tube is cooled. Following the cooling cycle, the apparatus operates to release the tubing with the formed coil in it from the machine.
87 Method of manufacturing a resin spring US09991659 2001-11-26 US06709618B2 2004-03-23 Hiroki Makino; Tsutomu Tomizawa
A method of manufacturing a resin spring which can improve close contact between a spring body and inner-pressure generating members to reduce variations in load characteristics due to repeated deformation during use. The method of manufacturing a resin spring includes the steps of forming an elastomer preform having inner closed chambers, compressing the preform by applying an external force to produce a permanently deformed portion to form a spring body having at least one permanently deformed inner chamber, injecting an inner-pressure generating resin into each of the at least one permanently deformed inner chamber of the spring body, and molding the inner-pressure generating resin into an inner-pressure generating member by using the spring body as part of a die.
88 Manufacturing method for composite transverse leaf spring US10037048 2001-12-31 US20020153648A1 2002-10-24 Robert C. Lawson
A transverse leaf spring structure and a manufacturing method for a composite transverse leaf spring is disclosed. The leaf spring is formed using a pre-formed tubular fiberglass fabric comprising longitudinally aligned and braided fiberglass fibers. The fabric is installed over an interior form, such as one or more inflatable bladders, and positioned within a forming mold. After resin is applied and cured to an appropriate stiffness within the mold, the mold is removed. The interior form is then removed from the composite leaf spring.
89 Method for producing a hybrid leaf spring US10102100 2002-03-19 US20020096249A1 2002-07-25 Frank Meatto; Edward Pilpel; D. Michael Gordon; David C. Gordon JR.
In a method for making a hybrid leaf spring, at least one layer of composite material is molded onto a primary leaf using a mold with an interior cavity having a curvature for receiving the primary leaf at a depressed camber relative to its initial camber. The depressed camber is between unloaded and curb load cambers of the hybrid leaf spring. The primary leaf and the layer of composite material are positioned in the mold adjacent to one another and with a layer of adhesive therebetween. The layer of adhesive is cured for bonding together the primary leaf and the layer of composite material at the depressed camber so as to generally eliminate bond line shear stress when the camber of the hybrid leaf spring is at the curb height.
90 Method of manufacturing a resin spring US09991659 2001-11-26 US20020030304A1 2002-03-14 Hiroki Makino; Tsutomu Tomizawa
A method of manufacturing a resin spring which can improve close contact between a spring body and inner-pressure generating members to reduce variations in load characteristics due to repeated deformation during use. The method of manufacturing a resin spring includes the steps of forming an elastomer preform having inner closed chambers, inserting inner-pressure generating members into the inner closed chambers of the preform, and compressing the preform with the inner-pressure generating members therein by applying an external force to produce a permanently deformed portion having an oriented molecular structure.
91 Method of manufacturing a resin spring US09280546 1999-03-30 US06337043B2 2002-01-08 Hiroki Makino; Tsutomu Tomizawa
A method of manufacturing a resin spring which can improve close contact between a spring body and inner-pressure generating members to reduce variations in load characteristics due to repeated deformation during use. The method of manufacturing a resin spring includes the steps of forming an elastomer preform having inner closed chambers, inserting inner-pressure generating members into the inner closed chambers of the preform, and compressing the preform with the inner-pressure generating members therein by applying an external force to produce a permanently deformed portion having an oriented molecular structure.
92 METHOD OF MANUFACTURING A RESIN SPRING US09280546 1999-03-30 US20010042940A1 2001-11-22 HIROKI MAKINO; TSUTOMU TOMIZAWA
A method of manufacturing a resin spring which can improve close contact between a spring body and inner-pressure generating members to reduce variations in load characteristics due to repeated deformation during use. The method of manufacturing a resin spring includes the steps of forming an elastomer preform having inner closed chambers, inserting inner-pressure generating members into the inner closed chambers of the preform, and compressing the preform with the inner-pressure generating members therein by applying an external force to produce a permanently deformed portion having an oriented molecular structure.
93 Hybrid composite leaf springs US387641 1995-02-13 US5667206A 1997-09-16 Jemei Chang
A hybrid composite automotive leaf spring comprises parallel glass and polyethylene terephthalate fibers distributed in a pattern replicated throughout a resin matrix. A method of producing the hybrid composite leaf spring comprises winding various proportions of glass and polyethylene terephthalate or nylon fibers together into a homogeneous mass in an epoxy matrix in a mold to form a blank, which is then compressed and cured into a leaf spring having a predetermined homogeneous mixture of parallel fibers distributed throughout the cross-section of the spring. The unitary spring has a spring rate that is a composite of the resin-bonded glass and other fibers. Different spring rates are obtained by varying the percentage content of the glass and other fibers, while maintaining the homogeneity of the resultant leaf spring.
94 Elastomer rebound, jounce and related compression springs US743650 1991-08-12 US5192057A 1993-03-09 Neal E. Wydra; David W. Geick
A bellows shaped compression spring having a variable spring rate and formed of an elastomer having tensile characteristics such that the ratio of plastic strain to elastic strain is greater than 1.5 to 1, said spring being particularly adapted for use in the strut assemblies of light weight, low profile automobiles for minimizing noise, vibration and impact forces otherwise transmitted from the wheel to the vehicle body.
95 Method for making an airspring and sleeve US197376 1988-05-23 US4954194A 1990-09-04 Michael L. Crabtree
A method for making an Airspring and Sleeve that each have a chamber portion and rolling lobe portion reinforced with successive layers of embedded cord by winding cord in one layer at opposite helical angles from cord of a second successive layer and winding cord at inconstant helical angles in an annular band portion of at least one of the sleeve portions.
96 Fluid pressure devices US469940 1983-02-25 US4832317A 1989-05-23 Claude Alaphilippe
A fluid-pressure device for example a bellows-type spring, in which a terminal portion of the spring is compressed between an end member (4) and an annular pressure piece (11) to provide a fluid-tight seal and an additional fluid-tight seal is provided by welding mutually opposed joint surfaces (16,13) of the end member and the annular pressure piece. The end member and the pressure piece may be of thermoplastic material and welded together by ultrasonic or friction welding.
97 FRP plate and process for manufacturing the same US808823 1985-12-13 US4753835A 1988-06-28 Atsushi Misumi; Toshihiro Takehana
An FRP plate spring member having spring characteristics of the invention has a protective layer of a resin formed on the entirety or part of the outer surface of an FRP base comprising a number of reinforcing fibers which are impregnated with and held in a cured matrix resin. A process for manufacturing such an FRP plate includes a step of applying a resin for forming the protective layer on the entirety or part of the inner surface of a mold for molding the FRP plate.
98 Process of making a filament wound composite material leaf spring US797719 1985-11-12 US4749534A 1988-06-07 Richard E. Robertson
A constant cross-sectional area filament wound composite material leaf spring of optimal energy storage efficiency given the constraints of filament winding and maximum spring width comprises a portion which widens toward the end of the spring, the rate of increase of width of the spring being such that the longitudinal side surfaces of the spring along such portions follow a lateral, outwardly convex curve of radius R.sub.I, wherein R.sub.I at each point is substantially equal to the camber, i.e., the longitudinal radius of curvature R.sub.C at that point.
99 Method of making a plastic leaf spring US57341 1987-06-02 US4747898A 1988-05-31 Herbert Woltron
A method of producing a plastic leaf spring for motor vehicles comprising forming a plurality of cured duromeric plastic strips reinforced with high strength fibers aligned substantially in the direction of the maximum elongation or compression of the fibers occurring under spring load at least in essential resilient regions of the spring, the said resilient regions being said strips bonded together by an adhesive and eventually also being bonded to a second, more resilient element and/or to another element and a process for its preparation.
100 Multiple composite twine structure US33493 1987-04-01 US4740422A 1988-04-26 Charles E. Kaempen
A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures. A preferred segmented form of coupling structure comprises two semi-circular flanged cantilever spring members assembled and deflected by an encircling retaining sleeve.The method and apparatus for making a composite in the form of a preferred coupling structure comprises placing first ply loops of longitudinal twines upon a pin-ended forming surface, transversely placing a second ply of twines upon the first ply twines to deflect them into flange-forming cavities, hardening the twine-impregnating matrix, removing and slotting the flanged spring members to provide the desired coupling structure.
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