WO2021129929A1 - Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant - Google Patents

Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant Download PDF

Info

Publication number
WO2021129929A1
WO2021129929A1 PCT/EP2019/086956 EP2019086956W WO2021129929A1 WO 2021129929 A1 WO2021129929 A1 WO 2021129929A1 EP 2019086956 W EP2019086956 W EP 2019086956W WO 2021129929 A1 WO2021129929 A1 WO 2021129929A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing portion
bearing
injection
male
female
Prior art date
Application number
PCT/EP2019/086956
Other languages
English (en)
Inventor
Hitoshi Nakamura
Original Assignee
Toyota Motor Europe
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Europe filed Critical Toyota Motor Europe
Priority to PCT/EP2019/086956 priority Critical patent/WO2021129929A1/fr
Priority to DE112019008004.0T priority patent/DE112019008004T5/de
Publication of WO2021129929A1 publication Critical patent/WO2021129929A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0628—Construction or details of the socket member with linings
    • F16C11/0633—Construction or details of the socket member with linings the linings being made of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0685—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/026—Constructions of connecting-rods with constant length made of fibre reinforced resin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof

Definitions

  • FIELD [0001] The present description relates to the field of injection molding.
  • JPH10151931 discloses a link rod for stabilizer and manufacture thereof, comprising a resin material.
  • the inventors have recognized that injection-molded bearing components are weak in proximity to a weld line (also known as a knit line or meld line, for example) in the component. It is therefore a goal of the present disclosure to provide a means for mitigating the weakening effect of the weld line.
  • a weld line also known as a knit line or meld line, for example
  • an injection-molded component including a reinforcing insert embedded across a weld line of the injection-molded component.
  • a reinforcing insert embedded across a weld line of the injection-molded component.
  • the reinforcing insert may include a metal.
  • At least one surface of the reinforcing insert may be textured, to improve adhesion of the reinforcing insert to the adjacent material.
  • At least a portion of the reinforcing insert may be curved.
  • the reinforcing insert may define a closed path.
  • the reinforcing insert may be embedded adjacent to a cavity provided in the injection-molded component
  • a female bearing portion may be provided, including an injection-molded component as described earlier herein.
  • a cavity may be provided in the injection-molded component, and this cavity may be configured to receive at least a portion of a male bearing portion.
  • Such a female bearing portion may have a reduced weight and/or mass and/or manufacturing cost than a female bearing portion which uses full metal construction, while mitigating the effects of the weld line which may be present from injection molding.
  • a bearing may be provided.
  • the bearing may include a female bearing portion as described earlier herein at least partially surrounding a male bearing portion.
  • At least one portion of the male bearing portion and at least one portion of the female bearing portion may be movable relative to one another along or about at least one axis. At least a portion of the reinforcing insert may be arranged obliquely or perpendicularly the at least one axis.
  • the bearing may include a liner.
  • the liner may be disposed between the female bearing portion and the male bearing portion.
  • the reinforcing insert may surround at least a portion of the female bearing portion and/or at least a portion of the male bearing portion.
  • the bearing may be a ball-joint.
  • the female bearing portion may include a socket, and the male bearing portion may include a ball.
  • the reinforcing insert may at least partially surround the socket.
  • a suspension linkage may be provided, including a bearing as described earlier herein.
  • a vehicle may be provided, including a bearing as described earlier herein.
  • bearing portion may be fabricated according to a method including the following steps:
  • the method may be suitable for fabricating a male bearing portion and/or a female bearing portion, such as the female bearing portion as described earlier herein, for example.
  • An injection-molded component as described earlier herein may constitute the at least a portion of the bearing portion molded in step "b" above.
  • a bearing as described earlier herein may be fabricated according to a method including the following steps: [0027] fabricating a female bearing portion, and
  • the male and/or female bearing portion(s) may be fabricated according to the method of fabricating a bearing portion as described earlier herein.
  • Figure 1 shows a plan view of a bearing
  • Figure 2 shows a partial cross-sectional view taken along line II-II of the bearing shown in Figure 1;
  • Figure 3 shows a cross-sectional view taken along III-III of the bearing shown in Figure 2;
  • Figure 4 shows a suspension linkage
  • FIG. 5 shows a vehicle.
  • such a bearing 200 may form part of a suspension linkage 2, such as a stabilizer linkage, for example.
  • the suspension linkage 2 may be reinforced at least in a region of the bearing 200.
  • Figure 4 shows the suspension linkage 2 as a stabilizer linkage, and as having two substantially identical bearings 200, arranged at the extremities of a slender central body 22, oriented in substantially the same direction as one another, neither the type of suspension linkage 2, nor the quantity of bearings 200 in the suspension linkage 2, nor the resemblance of bearings 200 to one another (when multiple are present), nor the position of the bearing(s) relative to other components of the suspension linkage 2 (or to other bearings 200 when multiple are present), nor the characteristics of other components of the suspension linkage 2 besides the bearing(s) 200, nor the orientation of the bearing (s) relative to other components of the suspension linkage 2 (or to other bearings 200 when multiple are present) is intended to be limiting.
  • Figure 4 shows the central body 22 as being formed monolithically with the female bearing portion 220, such a formation is not intended to be limiting.
  • An automobile (see Figure 5) is a non-limiting example of a vehicle 1, which may include such a bearing 200, possibly as part of a stabilizer linkage or other suspension linkage 2. Such a vehicle 1 may be reinforced at least in a region of the bearing 200.
  • a bearing 200 is a mechanism that imposes a kinematic pair between two or more objects.
  • kinematic pairs include a revolute pair, a cylindrical joint, a prismatic joint, a screw pair, and a spherical joint, such as the ball joint presented herein.
  • a revolute pair is imposed between a male bearing portion and a female bearing portion the male and female bearing portions are rotatable relative to one another about one axis, but substantially immobilized in rotation about the remaining axes, and immobilized in translation along all three axes.
  • the pintle of the male bearing portion is received in the gudgeon of the female bearing portion, allowing rotation of the male and female bearing portion about the axis of the pintle, but opposing translation of the male and female bearing portions relative to one another.
  • the male and female bearing portions may translate relative to one another in a direction that is parallel or tangential to their respective contact surfaces, but is substantially limited in terms of translation along and rotation about axes orthogonal thereto.
  • a piston of a male bearing portion is received in the cylinder of the female bearing portion, allowing translation along the axis of the cylinder, but opposing translation along and rotation about axes orthogonal thereto.
  • the piston and cylinder have circular cross sections as taken normal to the axis along which translation occurs, rotation of the piston relative to the cylinder about the translation axis is also possible.
  • the piston and cylinder have non-circular cross- sections as taken normal to the axis of the cylinder, rotation about the translation axis is opposed. This is a non-limiting example of a prismatic joint.
  • a screw pair is imposed between a male bearing portion and a female bearing portion
  • rotation about and translation along a given axis accompany one another.
  • applying a rotation of the male bearing portion relative to the female bearing portion about an axis may cause translation of the male bearing portion relative to the female bearing portion, possibly along the same axis.
  • applying a translation of the male bearing portion relative to the female bearing portion along an axis may cause rotation of the male bearing portion relative to the female bearing portion, possibly along the same axis.
  • the male bearing portion may be rotatable relative to the female bearing portion about as many as three mutually orthogonal axes, but translation of the male bearing portion relative to the female bearing portion along a given axis may be opposed.
  • a ball of the male bearing portion may be rotatable in a socket of the female bearing portion about three mutually orthogonal axes, but substantially immobilized in translation along these axes (notwithstanding mechanical play between components in the bearing such as the male and female bearing portions, or a liner arranged therebetween - if present).
  • a ball joint is a non-limiting example of a spherical joint.
  • the bearing 200 visible in Figure 1 is shown in cross-section taken along line II-II, revealing that a portion of the male bearing portion 230 is received in a cavity of the female bearing portion 220.
  • the geometry of the cavity and the portion of the male bearing portion 230 received therein dictates the manner in which the male 230 and female 220 bearing portions cooperate with one another.
  • the bearing 200 is shown as including a male bearing portion 230 that is movable relative to a female bearing portion 220 along or about one or more axes 301, 302, 303.
  • Figures 1 & 2 show axis 301 as being coincident with lines II-II and III-III, this coincidence is not intended to be limiting.
  • the mobility of male 230 and female 220 bearing portions relative to one another along or about this or these axes 301, 302, 303 arises from cooperation between the male bearing portion 230 and the female bearing portion 220.
  • the male bearing portion 230 may also be rotatable relative to the female bearing portion 220 about axes 301 and 302, seen in Figures 1 & 2 respectively.
  • the cavity of the female bearing portion 220 may at least partially surround the portion of the male bearing portion 230 received therein. This arrangement may limit translational mobility of the cavity relative to the portion of the male bearing portion 230 received therein.
  • the cavity is a socket 221.
  • a socket 221 is a non-limiting example of a cavity.
  • this arrangement may form a ball joint.
  • the socket 221 at least partially surrounds the ball 231. As such movement of the ball 231 along axes 301, 302, 303 relative to the socket 221 may be limited or even prevented.
  • a boot 400 may be provided about the interface of the male 230 and female 220 bearing portions.
  • the boot 400 may be materially flexible and/or mobile relative to one or more of the male 230 and female 220 bearing portions, so as to minimize interference with the relative mobility of the male bearing portion 230 relative to the female bearing portion 220.
  • forces transmitted between the male 230 and female 220 bearing portions may cause one or more of the male 230 and female 220 bearing portions to fail.
  • This failure may be catastrophic, as with rupture of one or more of the male 230 or female 220 bearing portions, or gradual, as with wear of a surface of one or more of the bearing surfaces of the male 230 or female 220 bearing portions, or as with fatigue of one or more of the male 230 or female 220 bearing portions.
  • a liner 240 may be desirable to provide a liner 240 between the male 230 and female 220 bearing portions.
  • a liner 240 is provided between the ball 231 of the male bearing portion 230 and the socket 221 of the female bearing portion 220.
  • the liner 240 may prevent forces from being transmitted directly to the female bearing portion 220 from the male bearing portion 230. For example, in Figure 2, a force transmitted to the socket 221 by the ball 231 may pass through the liner 240. [0061] As seen in Figure 2, the liner 240 may also reduce local stresses in one or more of the male 230 and female 220 bearing portions, by distributing the force(s) transmitted through the liner 240 across a larger contact surface of the female bearing portion 220 and/or the male bearing portion 230.
  • force transmission from the ball 231 to the liner 240 may occur over a smaller area than transmission of the same force from the liner 240 to the socket 221, leading to a reduction in stress applied to the socket 221, compared to direct transmission of the force from the ball 231 to the socket 221.
  • a liner 240 may offer desirable properties in terms of hardness and/or smoothness that could facilitate cooperation between the male bearing portion 230 and the female bearing portion 220.
  • the ball 231 and the socket 221 may be more smoothly rotatable relative to one another and/or exhibit reduced wear when a socket liner 240 is provided between the socket 221 and the ball 231.
  • the bearing is presented in cross-section along line III-III and overlaid with arrows 211-213 indicating material flow during injection molding of a component 219.
  • the component 219 shown in Figure 3 is presented as belonging to a female bearing portion 220, or even being a female bearing portion 220.
  • a bearing portion 220, 230 that includes an injection-molded component 219 may be lighter and/or cheaper to produce.
  • a bearing 200 including the bearing portion 220, 230 may be lighter and/or cheaper to produce than a bearing that lacks such an injection-molded component 219.
  • a force may be transmitted to the female bearing portion 220 from the male bearing portion 230, and/or vice versa. This transmission may occur directly, as with direct contact between the male bearing portion 230 and the female bearing portion 220, or indirectly, as with a liner 240 provided to contact each of the male 230 and female 220 bearing portions.
  • a liner 240 between the male 230 and female 220 bearing portions may improve the ability of the male bearing portion 220 and/or the female bearing portion 230 to resist failure under a given load transmitted therebetween, the male 230 and/or female 220 bearing portion may still be at risk of failure due to transmission of a force between the liner 240 and one or more of the male 230 and female 220 bearing portions.
  • a weld-line is an example of a defect that can arise during injection-molding of a component.
  • injection-molding of the female bearing portion 220 from an injection site located near the right hand side of the image causes injected material to flow leftward 213 in the mold, towards a region of the mold where the cavity in the female bearing portion 220 is formed. As the injected material encounters this region of the mold, the injected material is made to diverge, leading to the formation of multiple flow fronts 211, 212, which converge downstream of this region relative to the injection site.
  • the flow fronts 211, 212 can also be understood to converge downstream of the cavity in the injection-molded component 219 relative to the injection site in the injection-molded component 219.
  • Convergence of flow fronts occurs along a surface, referred to hereafter as a convergence surface.
  • a convergence surface When the flow fronts 211, 212 fail to adequately bond to one another during convergence, a weld line may form.
  • flow fronts 211, 212 converge around the cavity at a convergence surface, where weld line 210 would form.
  • component or mold geometry may make alternative flow patterns undesirable or unsuitable, and/or mechanical performance requirements may dictate the use of a material which degrades under higher injection and/or mold temperatures, and/or which is unsuitable for higher injection speeds.
  • the regions in which the defects would otherwise form may continue to constitute areas of weakness in the injection-molded component.
  • the convergence surface of the injection-molded component 219 may cause localized weakening of the injection-molded component 219.
  • injection-molded component 219 female bearing portion 220
  • the reinforcing insert 100 may be embedded adjacent to the cavity, for at least local reinforcement of the cavity.
  • the reinforcing insert 100 may be metallic, and is at least partially embedded in material on at least two sides of the weld line 210.
  • the term "material on (at least) two (or more) sides of a/the weld line” is equivalent to the terms “material on (at least) two (or more) sides of a/the convergence surface", “across a/the weld line”, and "across a/the convergence surface”.
  • Resistance of this stress by the reinforcing insert 100 may thereby prevent failure of the female bearing portion 221 along the weld line 210 or the convergence surface.
  • the ball 231 is arranged within the socket 221.
  • a layer of material of the socket 221 is provided between the ball 231 and a reinforcing insert 100.
  • the reinforcing insert 100 at least partially surrounds the socket 221, which may allow the socket to be reinforced against loads transmitted thereto from the ball 231.
  • the reinforcing insert 100 may be provided in the injection-molded component 219 during fabrication of the injection-molded component 219. This may be accomplished, for example, by arranging at least a portion of the reinforcing insert 100 within a mold for the injection-molded component 219.
  • the injection-molded component 219 may be molded therearound by injecting a resin-containing material into the mold. As such, the reinforcing insert 100 is at least partially embedded in the injection-molded component 219.
  • the flow pattern 211, 212, 213 of the resin-containing material may be such that a weld line 210 (if one were to form) would form obliquely or perpendicularly to the at least a portion of the reinforcing insert 100. Obliqueness or perpendicularity of the weld line 210 relative to the reinforcing insert 100 may allow the reinforcing insert to be embedded in material on two sides of the weld line 210 (if one were to form).
  • the location of a weld line 210 or a convergence surface within an injection-molded component 219 may be knowable based on the location of the injection site on a mold for the injection-molded component 219 and the geometry of the mold or the component. The same may be true regarding the orientation of the weld line 210 or convergence surface.
  • the flow pattern 211, 212, 213 of the resin-containing material may be such that the flow fronts 211, 212 converge along a surface which oblique or perpendicular to the at least a portion of the reinforcing insert 100.
  • Oblique or perpendicular orientation of the weld line 210, or the flow front convergence surface, to the reinforcing insert 100 may allow the reinforcing insert 100 to resist separation of material on either side of the weld line 210 (or the convergence surface), because the reinforcing insert 100 is at least partially embedded in the material on two sides of the weld line 210.
  • the reinforcing insert 100 may be desirable to at least partially embed the reinforcing insert 100 in the resin-containing material downstream of the cavity relative to the injection site.
  • at least a portion of the cavity may be located between at least a portion of the reinforcing insert 100 and the injection site.
  • a female bearing portion 220 includes the injection- molded component 219
  • a male bearing portion 230 may additionally or alternatively include the injection-molded component.
  • the injection-molded component 219 may even constitute the bearing portion 220, 230.
  • the bearing portion 220, 230 includes the injection- molded component 219 or the injection-molded component 219 constitutes the bearing portion 220, 230
  • the bearing portion may be fabricated by disposing at least a portion of the reinforcing insert 100 within a mold for the injection-molded component 219, and molding a resin-containing material therearound.
  • a bearing 200 may be fabricated using one or more bearing portions 220, 230 fabricated in this manner (i.e. so that a reinforcing insert is provided therein).
  • a female bearing portion 220 may be provided with a reinforcing insert 100, and assembled with a male bearing portion 230.
  • the assembly of the male 230 and female 220 bearing portions may occur sequentially or simultaneously with injection of the resin-containing material.
  • a male bearing portion 230 is assembled with a female bearing portion 220 during injection of the resin-containing material. This may be accomplished, for example, by arranging the male bearing portion 230 in a mold used to injection mold the female bearing portion 220, and injecting a resin-containing material into the mold and around the male bearing portion 230.
  • the ball 231 of the male bearing portion 230 is arranged in the mold used to injection mold the socket 221 of the female bearing portion 220, and a resin-containing material is injected into the mold, flowing towards a region of the mold where the ball 231 is situated and where the cavity will be formed (see 213), whereupon the flow diverges into multiple flow fronts 211, 212 which reconverge beyond the ball 231, thus forming a socket 221 that at least partially surrounds the ball 231.
  • a liner 240 may be arranged in the mold instead of the ball 231. Flow thus diverges into multiple flow fronts 211, 212 which reconverge beyond the liner 240, thus forming a socket 221 that at least partially surrounds the liner 240. Subsequent assembly of the ball 231 and the liner 240 causes the socket 221 to at least partially surround the ball 231.
  • the socket 240 and ball 231 may be assembled together prior to arrangement in the mold. Flow thus diverges into multiple flow fronts 211, 212 which reconverge beyond the liner 240 and the ball 231, thus forming a socket 221 that at least partially surrounds the liner 240 and/or the ball 231.
  • a liner 240 between the male 230 and female 220 bearing portions may be desirable.
  • the liner 240 may prevent direct contact between the male bearing portion 230 and the resin-containing material of the female bearing portion 220. Preventing such contact may prevent the formation of adhesions between the male and female bearing portions 230, 220, and thus preserve mobility therebetween.
  • the liner 240 may contact the injected resin-containing material directly. Such contact may cause help to reduce or eliminate mobility of the liner 240 relative to the resin-containing material. Such reductions or eliminations may stabilize the overall bearing 200, and increase the performance of the bearing 200.
  • direct contact between the liner 240 and the resin- containing material of the female bearing portion 220 may promote the formation of adhesions therebetween and/or prevent or reduce mobility of the liner 240 relative to the female bearing portion 220.
  • translational mobility of the ball 231 relative to the socket 221 may be substantially reduced or even limited to whatever translational mobility may exist between the liner 240 and the ball 231.
  • At least one surface of the reinforcing insert 100 that contacts the resin-containing material may be textured. Texturing of such a surface may increase resistance of the reinforcing insert 100 to movement through the resin-containing material by providing more intimate contact therebetween. As a non-limiting example, this textured surface may belong to the reinforcing insert 100. It may even be desirable to provide texturing on every surface of the reinforcing insert 100 in contact with the resin-containing material. In particular, the textured surface may extend across the weld line, in order to render separation of the surrounding material at the weld line more difficult than if the surface(s) were untextured.
  • the textured surface(s) may be knurled.
  • at least a portion of the reinforcing insert 100 may be curved.
  • the reinforcing insert 100 may be curved so as to be arranged to at least partially surround features of the item in which the insert is arranged.
  • the reinforcing insert 100 may be curved around the cavity, substantially about the axis 302 seen in Figure 2.
  • the reinforcing insert 100 may be curved around the cavity, substantially about the axis 303 and/or the axis 301 seen in Figure 1.
  • the curvature may be such that the reinforcing insert 100 defines a closed path, as seen in Figure 3.
  • a closed path may allow for the insert to reinforce a region contained therein on all sides.
  • the reinforcing insert 100 is curved so as to define a closed path surrounding the cavity of the bearing.
  • the curvature may be such that the reinforcing insert 100 does not define a closed path.
  • the path may be substantially planar (i.e. provided in a single plane) or provided in multiple planes.
  • Figures 2-3 show a path with substantially uniform curvature along the entire length of the curve, the path may alternatively be variable.
  • Non-limiting examples of variable-curvature paths include undulations and curvilinear paths.
  • Variable-curvature paths may improve bonding between the reinforcing insert 100 and the resin-containing material, such as by increasing the surface of contact therebetween.
  • Figures 2-3 show a socket liner 240 arranged between the male bearing portion 230 and the female bearing portion 220
  • a bearing 200 may lack such a socket liner. If no liner is provided between the male bearing portion 230 and the female bearing portion 220, a force may be transmitted therebetween directly.
  • this technique may also be applied to any bearing type.
  • this technique may be generalized to any weld line in any injection- molded component 219.
  • this technique may be generalized to any injection-molding defect (or any location where such defect is likely to occur) in an injection-molded component.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un composant moulé par injection (219) comprenant un insert de renforcement (100) intégré à travers une ligne de soudure (210) ou une surface de convergence avant d'écoulement du composant moulé par injection (219), ainsi que l'insert de renforcement (100). L'invention concerne également une partie palier (220, 230) comprenant le composant moulé par injection (219), l'insert de renforcement (100) étant intégré dans le composant moulé par injection (219) adjacent à une cavité ménagée en son sein. L'invention concerne également un procédé de fabrication de la partie palier (220, 230). L'invention concerne en outre un procédé de fabrication d'un palier (200). L'invention concerne ainsi un palier (200) comprenant une partie palier femelle (220), entourant au moins partiellement une partie palier mâle (220) et le composant moulé par injection (219). L'invention concerne en outre une liaison de suspension comprenant le palier (200). L'invention concerne également un véhicule comprenant le palier (200).
PCT/EP2019/086956 2019-12-23 2019-12-23 Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant WO2021129929A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2019/086956 WO2021129929A1 (fr) 2019-12-23 2019-12-23 Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant
DE112019008004.0T DE112019008004T5 (de) 2019-12-23 2019-12-23 Spritzgegossene komponente mit verstärkungseinsatz, sowie dieses aufweisendes lager und aufhängungsgestänge und fahrzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/086956 WO2021129929A1 (fr) 2019-12-23 2019-12-23 Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant

Publications (1)

Publication Number Publication Date
WO2021129929A1 true WO2021129929A1 (fr) 2021-07-01

Family

ID=69159748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/086956 WO2021129929A1 (fr) 2019-12-23 2019-12-23 Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant

Country Status (2)

Country Link
DE (1) DE112019008004T5 (fr)
WO (1) WO2021129929A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1121004A (en) * 1966-01-24 1968-07-24 Cam Gears Clevedon Ltd Improvements in ball joints
GB1150279A (en) * 1965-08-06 1969-04-30 Viktor Langen Improvements in Ball Joints.
DE19622700A1 (de) * 1995-06-07 1996-12-12 Dana Corp Zusammengesetztes und mit Gehäuse umgebenes Kugelgelenk
US5947627A (en) * 1996-02-14 1999-09-07 Chuouhatsu-Jo Kabushiki Kaisha Ball joint assembly having an integrally molded unitary or molded holder for the ball stud and link rod
KR100998508B1 (ko) * 2010-08-27 2010-12-07 주식회사 센트랄 링크텍 자동차용 필로우 볼 조인트
KR101002985B1 (ko) * 2010-08-27 2010-12-22 주식회사 센트랄 링크텍 자동차용 필로우 볼 조인트
KR101379768B1 (ko) * 2012-06-19 2014-04-02 주식회사 센트랄 스태빌라이저 링크 및 그 제조방법
EP3401145A1 (fr) * 2017-05-12 2018-11-14 TB&C Technology GmbH Système d'articulation rotative doté d'un boulon articulé fabriqué à l'aide d'un moulage par injection

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1150279A (en) * 1965-08-06 1969-04-30 Viktor Langen Improvements in Ball Joints.
GB1121004A (en) * 1966-01-24 1968-07-24 Cam Gears Clevedon Ltd Improvements in ball joints
DE19622700A1 (de) * 1995-06-07 1996-12-12 Dana Corp Zusammengesetztes und mit Gehäuse umgebenes Kugelgelenk
US5947627A (en) * 1996-02-14 1999-09-07 Chuouhatsu-Jo Kabushiki Kaisha Ball joint assembly having an integrally molded unitary or molded holder for the ball stud and link rod
KR100998508B1 (ko) * 2010-08-27 2010-12-07 주식회사 센트랄 링크텍 자동차용 필로우 볼 조인트
KR101002985B1 (ko) * 2010-08-27 2010-12-22 주식회사 센트랄 링크텍 자동차용 필로우 볼 조인트
KR101379768B1 (ko) * 2012-06-19 2014-04-02 주식회사 센트랄 스태빌라이저 링크 및 그 제조방법
EP3401145A1 (fr) * 2017-05-12 2018-11-14 TB&C Technology GmbH Système d'articulation rotative doté d'un boulon articulé fabriqué à l'aide d'un moulage par injection

Also Published As

Publication number Publication date
DE112019008004T5 (de) 2022-10-27

Similar Documents

Publication Publication Date Title
US9487058B2 (en) Composite structural element, particularly for a vehicle suspension, and method for manufacturing the same
CN106536146B (zh) 导杆以及导杆的制造方法
US7195398B2 (en) Two-component bearing shell for an injection-molded ball-and-socket joint
US8505204B2 (en) Method of manufacturing a ball joint assembly
GB2412150A (en) A resin torque rod and method of producing the same
WO2012026218A1 (fr) Articulation de stabilisateur et procédé de fabrication de celle-ci
US20080063466A1 (en) High-performance ball socket
US20220373025A1 (en) Bearing structure component
US6978886B2 (en) Non-metallic drive chain
US8641409B2 (en) Blow mold
WO2021129929A1 (fr) Composant moulé par injection avec insert de renforcement, ainsi que palier et liaison de suspension et véhicule les comprenant
KR20190134489A (ko) 커플링 로드, 휠 서스펜션 및 커플링 로드를 제조하기 위한 방법
CN109340247A (zh) 一种弹性球铰用突块型复合芯轴
CN109538625A (zh) 一种推力杆球铰及其组装方法
US20200056651A1 (en) Sealing Bellows For A Ball And Socket Joint Comprising Such A Sealing Bellows
GB2564963A (en) Method for producing a bearing bush, bearing bush and control arm for a wheel suspension of a motor vehicle
JPH0514806B2 (fr)
CN111356566B (zh) 主动式气动系统模内组装的铰链模块化框架
EP1025371B1 (fr) Piece d'accouplement elastomere a sabot composite
CN109340248A (zh) 一种具有复合突块芯轴的弹性球铰
JP7409979B2 (ja) サスペンションブッシュ
US20180272580A1 (en) Insert to reduce weld line appearance defect in injection molding
CN209557478U (zh) 一种用于弹性球铰的突块型复合芯轴
CN113685431B (zh) 一种橡胶球铰中加大径向刚度的结构
CN109578429B (zh) 一种可转动复合芯轴的弹性球铰

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19835667

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19835667

Country of ref document: EP

Kind code of ref document: A1