The invention relates to a method for producing a fibre composite body (2), in particular at least a part of a wheel, comprising the following steps: providing a mould (4) having at least one female mould part (6) and one male mould part, introducing a fibrous raw material (8) and a binder (10) into the female mould part (6), activating the binder (10) by an energy input (p, T) into the mould (4) to form a mould element (12) which is open to diffusion, joining together the mould element (12) which is open to diffusion and a preform structure (14), supplying a resin, so that the resin infiltrates at least partially into the mould element (12) which is open to diffusion and into the preform structure (14), and curing the resin, so that in this way the fibre composite body (2) is formed without a boundary layer.
B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29B 15/08 - Pretreatment of the material to be shaped, not covered by groups of reinforcements or fillers
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B29C 70/12 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of short length, e.g. in the form of a mat
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B29C 70/84 - Moulding material on preformed parts to be joined
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
The invention relates to a tool (20) for producing a workpiece from a textile semi-finished product (13), having a first half-shell (1) with a first housing (1a) and having a second half-shell (2) with a second housing (2a). In an unclamped state, the textile semi-finished product can be positioned between the half-shells, and the first half-shell can be clamped with the second half-shell from an unclamped state into a clamped state in a clamping direction. The tool additionally has a clamping device (17) with a needle (3) which can be moved in the clamping direction and opposite the clamping direction, wherein the needle (3) is arranged in the first housing and has a groove (3a), the second housing has a locking device (16), by means of which the needle is locked in the second housing in the clamped state, and a clamping force is applied to the needle in the clamping direction in the clamped state in order to clamp the first half-shell with the second half-shell.
A method for producing a partially contoured, fiber-reinforced plastic profile includes providing a plurality of first reinforcing fibers. The first reinforcing fibers are combined to produce a uni-, bi-, or tridirectional fiber bundle. The fiber bundle is impregnated with a first plastic matrix. The impregnated fiber bundle is supplied to a unit for at least partial shaping or for at least partial shaping and at least partial curing of the first plastic matrix to produce a fiber-reinforced plastic base element. Second reinforcing fibers are provided for at least partial application to the fiber-reinforced plastic base element. The fiber-reinforced plastic base element is provided with the second reinforcing fibers for at least partial fiber-reinforced profiling and/or shaping to produce an at least partially contoured, fiber-reinforced plastic strand and the at least partially contoured, fiber-reinforced plastic strand is cut to produce an at least partially contoured, fiber-reinforced plastic profile.
B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
E04C 5/03 - Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance, i.e. of essentially one-or two-dimensional extent with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
THYSSENKRUPP FEDERN UND STABILISATOREN GMBH (Germany)
THYSSENKRUPP CARBON COMPONENTS GMBH (Germany)
THYSSENKRUPP AG (Germany)
Inventor
Kiessling, André
Kiele, Jörn
Werner, Jens
Lechner, Dieter
Abstract
The present invention relates to a coil spring (100, 100') having a plurality of windings of a helix-wound spring wire (10, 10', 10''), made from fibre-reinforced plastic material comprising a fibre reinforcement and a matrix material, wherein the fibre reinforcement runs over the entire length of the spring wire (10, 10', 10'') as an endless fibre material with a constant fibre count, wherein the coil spring has two spring ends and a transition region (B) at at least one of the spring ends in a last winding (1) of the coil spring (100, 100') and, adjoining said transition region in the direction of the end of the spring wire, an end region (E), wherein a cross-sectional area of the spring wire (10, 10', 10'') in the transition region (B) transitions from a cross-sectional area (A0) of the spring wire in a centre portion of the spring into a smaller cross-sectional area (A1) of the end region (E) by a continuous increase in the fibre volume content in the spring wire (10, 10', 10'') in the course of the transition region (B).
The invention relates to a wheel, especially for motor vehicles, comprising a wheel rim and a wheel disc, the wheel rim having a rim base made of fiber composite material. The invention is characterized in that the wheel disc (3, 11, 20, 29, 40) can be indirectly connected to the wheel rim (1), in particular the rim base (2), by means of a connecting element (5, 14, 22, 31, 35, 42) which is designed and associated with the rim base (2) in such a way that the connected wheel disc (3, 11, 20, 29, 40) is not in contact with the rim base (2).
The invention relates to a vehicle wheel which has a wheel disc, a wheel rim and at least one connecting element which connects the wheel disc to the wheel rim, wherein the connecting element is guided through a passage in the wheel rim and is joined in the wheel disc and a seal is provided for hermetically sealing the passage in the wheel rim, wherein one or more seals (10) is/are arranged between an attachment region of the wheel disc (2) and an attachment region of the wheel rim (1), wherein the seal(s) (10) surrounds/surround the connecting element(s) (4) in a contact-free manner.
The invention relates to a transport module (1) for a vertical take-off and landing aircraft for transporting persons and/or loads, having a conveying pod (2) and a connection device (3) for connecting the conveying pod (2) to a flight module (5). The connection device (3) has an elongate shaft (6), one end of which has a coupling device (4) and the other end of which is attached to the conveying pod (2).
The invention relates to a modular vertical take-off and landing aircraft (1) for transporting persons and/or loads, having: — a flight module (2) with multiple drive units (4) arranged on a wing assembly (3), each drive unit (4) having an electric motor (5) and a propeller (6) that is operatively connected to the electric motor (5), — a transport module (7) having a conveying pod (8) and a connection device (9) for connecting the conveying pod (8) to the flight module (2), the connection device (9) having an elongate shaft (10), one end of which is attached to the conveying pod (8), and — a coupling device (11) for connecting the flight module (2) to another end of the elongate shaft (10) of the transport module (7).
The invention relates to a flight module (1) for a vertical take-off and landing aircraft comprising multiple drive units (3) arranged on a wing assembly (2), the wing assembly (2) having wing assembly struts (5) interconnected at node points (4) and each drive unit (3) having an electric motor (6) and a propeller (7) that is operatively connected to the electric motor (6). each drive unit (4) having an electric motor (5) and a propeller (6) that is operatively connected to the electric motor (5)A number of the drive units (3) are arranged outside the node points (4).
The invention relates to a take-off and landing station (1) for a flying vehicle (2) for transporting people and/or loads, which flying vehicle takes off and lands vertically and comprises a flight module (3), having a plurality of drive units (17) arranged on a main structure (16) of the flight module (3), and a transportation module (4), which can be coupled to the flight module (3). The take-off and landing station (1) comprises a holding apparatus (21) having a plurality of gripper elements and support elements (11) for supporting, fixing and/or orienting the main structure (16) during take-off and landing of the flying vehicle (2) or the flight module (3).
The invention relates to a vehicle wheel arrangement which has a wheel (1) with a wheel hub (4) and at least one support element (5) for mounting the wheel (1) on a vehicle part and/or for the arrangement of a force transmission unit. According to the invention, it is provided that the wheel hub (4) has at least one joining section (6), which, in the joining state of the vehicle wheel arrangement, corresponds with a joining section (6) of the support element (5), wherein the surface profiles (7, 7.1, 7.2) of the joining sections (6) are designed in such a manner that, in the joining state of the vehicle wheel arrangement, the wheel hub (4) and the support element (5) are connected to each other in a form-fitting manner at least in the circumferential direction of the wheel hub axis (R). The invention also relates to a method for producing a vehicle wheel arrangement with a wheel hub (4) composed of a fibre composite material and with at least one support element (5).
The invention relates to a vehicle wheel which is connectable to a brake system, wherein the wheel rim and/or wheel disc of said vehicle wheel has a supporting structure made from fibre-reinforced plastic. It is proposed that the wheel rim (2) and/or the wheel disc (3) at least on a side of the supporting structure (11) that faces the brake system (6) has a thermal function structure (7) which is thermally more conductive than the supporting structure (11) and is arranged extended in such a manner that thermal energy generated by the brake system (6) is substantially removed from a region of the wheel rim (2) and/or of the wheel disc (3) that is thereby thermally highly loaded into at least one thermally less loaded region of the wheel rim (2) and/of the wheel disc (3).
The invention relates to a pultrusion process for the continuous production of blanks from a fibre-plastic composite material (23), an arrangement for carrying out a pultrusion process and use of the pultrusion process according to the invention and the arrangement according to the invention. The pultrusion process comprises at least the following process steps: i. providing a strand of unimpregnated fibres (21); ii. feeding the strand of unimpregnated fibres (21) to a vacuum device (5, 5’, 5’’), which has at least one vacuum chamber (52, 52’, 52’’); iii. generating a negative relative pressure in the at least one vacuum chamber (52, 52’, 52’’) of the vacuum device (5, 5’, 5’’), whereby air (200) escapes from the strand of unimpregnated fibres (21); iv. removing the almost airless strand of unimpregnated fibres (22) from the vacuum device (5, 5’, 5’’) and feeding the almost airless strand of unimpregnated fibres (22) to an injection device (6, 6’), which has at least one injection chamber (61, 61’), wherein the vacuum device (5, 5’, 5’’) and the injection device (6, 6’) are connected to one another in an airtight manner, at least with respect to the surroundings; v. injecting matrix material (230) in a flowable state into the at least one injection chamber (61, 61’) of the injection device (6, 6’) and impregnating the strand (2) with the matrix material (230); vi. removing of the blank (23) from the injection device (6, 6’). With the process according to the invention, a homogeneous and complete wetting of the fibres of the strand is advantageously achieved at a high drawing rate. Furthermore, the fibre-plastic composite is not pressed in the process.
Disclosed is a vehicle wheel having a wheel rim and a wheel disc connected to an inner side of the wheel rim. The wheel disc is connected to the wheel rim by a connecting element which is guided through a through-hole of the rim base and inserted in the wheel disc. The through-hole is arranged in the tire seat of the rim base and the connecting element is joined substantially in the direction of the radial extension of the wheel disc which is associated to the tire seat on the inner side of the rim. In the method for producing the wheel the connection between wheel rim and wheel disc is produced in the region of the tire seat of the rim base, and, after the insertion of the connecting element into the wheel disc, a portion of the connecting element protruding the contour of the outer side of the rim of the tire seat is shaped so that the connecting element conforms to the contour of the outer side of the rim of the tire seat.
A torsion spring may be configured as a torsion bar or a helical spring made of a spring wire made of fiber-composite material. The torsion spring may have a plurality of layers of fiber reinforcement that have been saturated with a matrix material, wherein the layers may have fibers that are tension-loaded and fibers that are compression-loaded. The at least one compression-loaded group may have a lower group stiffness than the tension-loaded group with the highest group stiffness. Methods for designing or making torsion springs made of fiber-composite material are also disclosed.
F16F 1/366 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction made of fibre reinforced plastics
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
F16F 1/373 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape
A torsion spring may be formed as a bar spring or helical spring comprising a spring wire of fiber composite material. In some examples, the torsion spring comprises a number of layers of fiber reinforcement, which are impregnated with a matrix material. The layers may comprise tensile-loaded fibers and compression-loaded fibers. Groups of layers of the same loading direction may exist and, seen from an inside to an outside, the group stiffness of at least two groups may differ. Likewise, methods for making such torsion springs of fiber composite material are disclosed.
F16F 1/36 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction
F16F 1/37 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction of foam-like material, e.g. sponge rubber
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
F16F 1/366 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction made of fibre reinforced plastics
F16F 1/373 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape
The invention relates to a vehicle wheel having a wheel rim and a wheel disc which is connected to an inner side of the wheel rim, wherein the wheel disc is connected to the wheel rim by means of at least one connecting element which is guided through a through-hole of the rim base and is inserted in the wheel disc. The invention also relates to a method for producing the vehicle wheel. The vehicle wheel is characterized in that the through-hole (3) is arranged in the tire seat (1.1) of the rim base and the connecting element (3), which is guided through, is joined substantially in the direction of the radial extension of the wheel disc (2) which is associated to the tire seat (1.1) on the inner side of the rim. In the method, it is provided that the connection between wheel rim and wheel disc is produced in the region of the tire seat (1.1) of the rim base, and, after the insertion of the connecting element (3) into the wheel disc (2), a portion of the connecting element (3), which protrudes the contour of the outer side of the rim of the tire seat (1.1), is shaped so that the connecting element (3) is adjusted conform to the contour of the outer side of the rim of the tire seat (1.1).
The invention relates to a method for producing a vehicle wheel with a connection between a wheel rim and a wheel disc, in which the wheel disc is connected to the wheel rim by means of at least one connecting element that is guided through a through-hole of the rim base and is joined in the wheel disc. After the joining of the connecting element (3) in the wheel disc (2), it is proposed that a portion of the head (3.1, 3.2) of the connecting element (3) remains projecting beyond the rim base (1.1, 1.2) on the outer side of the rim, and subsequently the head (3.1, 3.2) of the connecting element (3) is at least partially removed.
The invention relates to a vehicle wheel comprising a wheel rim, a wheel disc and at least one connecting element that connects the wheel disc and the wheel rim, wherein the connecting element is guided through a through-hole of the wheel rim and is joined in a joining channel of the wheel disc. According to the invention, an elongated sleeve (4, 4.1, 4.2, 4.3) is provided that surrounds the connecting element (3, 3.1, 3.2) coaxially, which sleeve is designed and arranged in such a way that at least part of said sleeve interlockingly extends into a corresponding recess (7) of the wheel rim (1.1, 1.2) and into a corresponding recess (8) of the wheel disc (2.1).
The invention relates to a vehicle wheel which has a wheel rim with a rim well made from fibre composite material and a wheel disc, wherein the wheel disc is connected to the wheel rim by means of at least one connecting element which is guided through a passage of the rim well and is received in the wheel disc. The invention provides that the wheel rim (1) has at least one connecting arrangement (5) with at least one connecting element (6, 21) and a seal element (15, 30, 33, 36, 43, 45) which covers in a complete and hollow manner a part (8, 26, 25, 40, 42) of one or more adjacent connecting arrangements (5), which part (8, 26, 25, 40, 42) extends over the rim outer side (9) of the rim well (4), and a circumferential edge (16, 31, 35, 38, 44) of the seal element (15, 30, 33, 36, 43, 45) is adhesively bonded in an air-tight manner to the rim well (4). The invention also provides that the wheel rim (1) has at least one connecting arrangement (5) with at least one connecting element (6, 21) and a flexible seal layer (46) which is made from preferably viscoelastic plastic and completely covers, by means of coating, a part (8, 26, 25, 40, 42) of the connecting arrangement (5), which part (8, 26, 25, 40, 42) extends over the rim outer side (9) of the rim well (4), and an edge region of the flexible seal layer (46) is connected in an air-tight manner to the rim well (4).
The invention relates to a wheel, especially for motor vehicles, comprising a wheel rim and a wheel disk, the wheel rim having a rim base made of fiber composite material. The invention is characterized in that the wheel disk (3, 11, 20, 29, 40) can be indirectly connected to the wheel rim (1), in particular the rim base (2), by means of a connecting element (5, 14, 22, 31, 35, 42) which is designed and associated with the rim base (2) in such a way that the connected wheel disk (3, 11, 20, 29, 40) is not in contact with the rim base (2).
The invention relates to a method for producing a wheel rim, having a rim base, from a fibre composite. The problem to be solved by the invention is that of improving the production of the wheel rim, and especially to ensure a reliably functioning wheel structure which can be achieved with little financial and technical outlay. The problem is solved in that during the production of the rim base (2) a connection element (3, 13, 21, 31, 42, 51) is joined to the rim base (2), said connection element (3, 13, 21, 31, 42, 51) being designed and arranged in such a way that a wheel disk (4, 14, 22, 36, 45) can be connected to said connection element (3, 13, 21, 31, 42, 51).
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.
A mould system for a “resin transfer moulding” process is presented, a system in which the cavity of a workpiece (1) to be produced is fully enclosed circumferentially by a multi-part shaping mould (2) and this shaping mould (2) is enclosed in a sealed manner by an outer, at least two-part enveloping mould (7, 8). A method for consolidating a fibre composite component with this mould system is also presented. And a method for producing a fibre composite component on the basis of the RTM process is shown, a method in which the intermediate space between a shaping mould (2) and a surrounding enveloping mould (7, 8) is filled with resin during the resin injection, after the curing the resin initially remains on the shaping mould (2) as a resin body but is destroyed during the demoulding of the workpiece (1), preferably at predetermined breaking points, and thus the demoulding of the workpiece (1) from the shaping mould (2) is assisted.
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
25.
Wheel made of fiber composites and process for the manufacture thereof
A one-part wheel which is made of fiber composites without interruption of fibers with excellent mechanical properties and with low weight at the same time as well as a process for the manufacture thereof. The wheel has especially a rim well as well as a wheel disk passing over into a wheel flange of the rim well, where the wheel disk is formed at least partly by fiber layers, which run from the rim well over a wheel flange and the wheel disk. The wheel is manufactured by a multipart mold with parts displaceable at least in the axial direction. The mold is completely removed after the deposition of fibers or remains as a lost core in the wheel.
B60B 3/02 - Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29L 31/32 - Wheels, pinions, pulleys, castors or rollers
26.
DEVICE FOR PRODUCING A COMPONENT FROM FIBRE COMPOSITE MATERIAL
The invention relates to a device for producing a component made from a fibre composite material from a semifinished fibrous product by means of a multipart moulding and infiltration tool with tool parts, the moulding functional surfaces thereof forming, when the tool is closed, a cavity that defines the component. The device is characterized in that the tool (1) has a sealing frame (2, 16, 18, 20, 21, 22) which is designed as a hollow body and in which the semifinished fibrous product (3) can be arranged, and the tool parts (4) are configured and can be associated with the sealing frame (2, 16, 18, 20, 21, 22) such that, when the tool (1) is closed, the tool parts (4) are connected tightly to the sealing frame (2, 16, 18, 20, 21, 22).
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
27.
WHEEL SPIDER COMPRISING ASSEMBLED SPOKE ELEMENTS AND CONNECTION OF SAID WHEEL SPIDER TO THE RIM WELL
The invention relates to a wheel, which comprises a rim having a rim well and rim flanges, a hub, and at least three spoke elements. Each spoke element forms at least one spoke between the hub and the rim. The spoke elements are fastened to the inside of the rim in a form-closed manner or a form-closed and bonded manner. The invention is characterized in that, in the hub region, the spoke elements are supported on each other in the circumferential direction at abutting surfaces designed therefor. The invention further relates to a method for producing the wheel according to the invention.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29L 31/32 - Wheels, pinions, pulleys, castors or rollers
The invention relates to a wheel, which consists of a rim having a rim base and a two-part wheel spider, wherein the wheel spider comprises two molded parts. The first molded part forms the spokes having an open cross-section and is joined to the second molded part. The spokes of the first molded part are completely or partially closed along the profile length by the second molded part. The wheel spider is preferably integrated in the rim in an interlocking manner. The rim and the two-part wheel spider can consist of metal, but in particular preferably of composite fiber material.
The invention relates to a wheel rim having a wheel disk (3) made of a fibre composite and having fastening means for fastening the wheel disk (3) to a wheel hub (5) of a vehicle, wherein the wheel disk (3) has at least one opening (8) for receiving the wheel hub (5) and the opening (8) is designed to have a conical centring surface (9) for the corresponding seat of a fastening means. According to the invention the reinforcing fibres of the fibre composite are arranged in planar layers (10) and at least a part of the fibre layers (10) is arranged in an edge region (12) of the opening (8) perpendicular to the centring surface (9) of the wheel disc (3).
The invention relates to a wheel rim having a rim base (3) made of fiber reinforced material and a wheel disk (2) connected to the rim base (3) in a radial edge section. The aim of the invention is to improve the connection between the rim base (3) and the wheel disk (2) and to provide a method for producing a wheel rim having an improved connection between the rim base (3) and the wheel disk (2). The radial edge section of the wheel disk (2) comprises at least two partial layers (4, 5) in which contoured joining zones (6, 7) which extend substantially axially, are provided, said joining zones being connected to the rim base (3) over their entire surface.
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
31.
WHEEL COMPRISING A WHEEL SPIDER, AND SUITABLE PRODUCTION METHOD
Disclosed is a wheel comprising a rim and a wheel spider that includes a hub (3a, 3b) and spokes (2). Said wheel is characterized in that the spokes are made of one or more linear textile strands as a reinforcement material of a fiber composite and in that each linear textile strand extends at least once and without interruption from the rim to the hub and back so as to form at least one spoke. The textile strands are positively connected and/or integrally bonded to the hub and the rim. Also disclosed is a method for producing the wheel of the invention.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29L 31/32 - Wheels, pinions, pulleys, castors or rollers
32.
WHEEL MADE OF FIBER COMPOSITES, AND PRODUCTION METHOD
The invention relates to a monolithic wheel which is made of fiber composites having uninterrupted fibers, has excellent mechanical properties, and is lightweight, as well as to a method for the production thereof. Said wheel particularly comprises a rim base and a wheel disk that extends to a rim flange of the rim base. The wheel disk is formed at least in part by layers of fibers which extend from the rim base over a rim flange and the wheel disk. The wheel is produced using a multipart mold comprising parts that can be moved at least in the axial direction. Once the fibers have been put in place, the mold is entirely removed or remains in the wheel as a lost core.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29L 31/32 - Wheels, pinions, pulleys, castors or rollers
The invention relates to a wheel, comprising an inner wheel part and an outer wheel part, wherein each wheel part has a circumferential rim flange, a part of the rim base, and a part of the wheel spider. The wheel is characterized in that openings in the wheel-spider parts of the two wheel parts are surrounded by borders. The borders mesh with each other in a dimensionally ideal manner, such that at least one border of an opening of a wheel spider surrounds or is surrounded by a border of the other wheel spider in a planar manner all around and the borders touching each other are connected to each other.
The invention relates to a rim base (15) that has an integrated flange (14) and is made of fiber composite as well as to a method for the production thereof. According to the invention, the flange is formed by inward-oriented protuberances of layers of fibers (9a) of the rim base, said layers of fibers extending without interruption from the rim base to the flange. The rim base is produced by placing fiber material on a mold (4) which corresponds to the contour of the rim base and which includes a radially continuous or segmented groove (10a). The fibers are placed such that the fibers of at least one layer of fibers have protuberances that point into the groove. Preferably, a multipart mold is used which allows the width of the groove to be reduced and thus the protuberances to be shaped.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B60B 5/02 - Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
B29L 31/32 - Wheels, pinions, pulleys, castors or rollers
patents
