WO2024255865A1 - Charnière à friction et composant intérieur de véhicule comprenant cette dernière - Google Patents

Charnière à friction et composant intérieur de véhicule comprenant cette dernière Download PDF

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Publication number
WO2024255865A1
WO2024255865A1 PCT/CN2024/099317 CN2024099317W WO2024255865A1 WO 2024255865 A1 WO2024255865 A1 WO 2024255865A1 CN 2024099317 W CN2024099317 W CN 2024099317W WO 2024255865 A1 WO2024255865 A1 WO 2024255865A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction
shaft
hinge according
cantilever
housing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2024/099317
Other languages
English (en)
Chinese (zh)
Inventor
高岩
王晓波
王洪木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanfeng International Automotive Technology Co Ltd
Original Assignee
Yanfeng International Automotive Technology Co Ltd
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 Yanfeng International Automotive Technology Co Ltd filed Critical Yanfeng International Automotive Technology Co Ltd
Publication of WO2024255865A1 publication Critical patent/WO2024255865A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • F16C11/10—Arrangements for locking

Definitions

  • the present disclosure relates to a friction pair, and more particularly to a friction hinge and a vehicle interior component including the friction hinge.
  • the friction hinge assembly is used to provide friction torque in the rotation direction.
  • the components of the friction hinge assembly in the prior art are relatively complex, including at least three parts: a housing, a friction plate and a core shaft, wherein the housing is fixed, one or more friction plates are limited in the housing, and the core shaft is fixedly connected to the rotating component and can rotate.
  • the torque is provided by friction between the inner circle of the friction plate hole and the outer circle of the core shaft.
  • the present disclosure provides a friction hinge and a vehicle interior component including the friction hinge.
  • the friction hinge includes a friction shaft and a shell, wherein the friction shaft has a cantilever structure formed as a core shaft friction portion, and the shell has a shell cavity to provide a cavity for the cantilever structure to be inserted into to form a friction pair, and when the friction shaft moves relative to the shell, torque is provided by friction between the inner wall of the hole of the shell cavity and the outer circle of the cantilever structure.
  • the friction shaft further comprises a sealing cover, and the cantilever structure is connected to the sealing cover.
  • the cantilever structure comprises a connecting portion and a cantilever portion in the axial direction, wherein the cantilever portion is connected to the cover via the connecting portion.
  • the cantilever portion and the cover define a slot therebetween.
  • a through hole is formed inside the cantilever portion.
  • the through hole is connected to the outside through the gap so that the cantilever portion is formed into a non-closed ring structure.
  • the through hole and the cantilever portion are eccentrically arranged so that the annular structure of the cantilever portion has a gradually varying thickness.
  • a plurality of friction protrusions are formed on the outside of the cantilever portion, which are interference-fitted with the inner wall of the hole of the housing cavity and provide a rotational friction torque.
  • the plurality of friction protrusions include: a pair of friction protrusions symmetrically located on both sides of the gap; and another friction protrusion located in the same radial direction of the cantilever portion as the gap.
  • the plurality of friction protrusions include: a pair of friction protrusions symmetrically located on both sides of the gap; and another friction protrusion, the distance between the other friction protrusion and one of the pair of friction protrusions is different from the distance between the other friction protrusion and the other of the pair of friction protrusions.
  • the shell further comprises a seal, which is connected and fixed at the outlet of the shell cavity to cooperate with the cover to form a closed space to protect the friction pair contained therein.
  • the friction shaft further comprises a shaft end interface, the shaft end interface and the cantilever structure are respectively connected to opposite sides of the cover, and the shaft end interface is connected to the rotating component.
  • the shaft end interface comprises a cylindrical two-side cut platform structure.
  • a vehicle interior component according to the present disclosure includes the friction hinge described above.
  • the vehicle interior component comprises a flip armrest of a secondary instrument panel, a flip small table, a flip screen, a rotating screen or a seat headrest ear piece.
  • the vehicle interior component comprises a fixed component fixed in the vehicle and a rotating component rotatable relative to the fixed component, wherein one of the friction shaft and the housing is fixedly connected to the fixed component, and the other is fixedly connected to the rotating component.
  • the friction plate and the core shaft in the prior art are combined into one friction shaft, the number of assembly parts is reduced, and there is no need for precise alignment when assembling the friction shaft to the housing. It can be installed at any angle position on the circumference, which reduces the difficulty of assembly, makes the cost lower, and is more conducive to mass production.
  • FIG. 1 is an overall schematic diagram of a vehicle equipped with a friction hinge according to a preferred embodiment of the present disclosure.
  • FIG. 2 shows an application scenario of a friction hinge according to a preferred embodiment of the present disclosure.
  • FIG. 3 shows another application scenario of the friction hinge according to a preferred embodiment of the present disclosure.
  • FIG. 4 is an assembly diagram of a friction hinge according to a preferred embodiment of the present disclosure.
  • FIG. 5 is an exploded view of the friction hinge of FIG. 4 .
  • FIG. 6 is a first view of the friction shaft of the friction hinge of FIG. 5 .
  • FIG. 7 is a second view of the friction shaft of the friction hinge of FIG. 5 .
  • FIG. 8 shows the interference friction between the friction protrusion of FIG. 7 and the housing.
  • FIG. 9 is a schematic structural diagram of a housing of the friction hinge of FIG. 5 .
  • FIG. 10 is a perspective view of an alternative embodiment of the friction shaft in FIGS. 6 to 8 .
  • a friction hinge according to a preferred embodiment of the present disclosure is installed at the rotating hinge portion of the interior functional part product circled by the dotted frame of the vehicle V.
  • a friction hinge A according to the present disclosure is installed on the flip armrest B of the auxiliary instrument panel.
  • a friction hinge A according to the present disclosure is installed on the flip screen C. It should be understood that the application scenarios and locations shown in the figure are only examples and not limitations, and they can also be applied to components such as a flip small table, a rotating screen, and a seat headrest ear.
  • These vehicle interior components all include a fixed component fixed in the vehicle and a rotating component rotatable relative to the fixed component.
  • the friction hinge A disclosed in the present invention combines the friction plate and the core shaft into a new part, namely the friction shaft 1, and the number of assembly parts is reduced from at least three (or more friction plates) to only two.
  • the friction shaft 1 When the friction shaft 1 is assembled to the housing 2, the friction shaft 1 does not need to be precisely aligned, and can be installed at any angle position on the circumference, which reduces the difficulty of assembly and makes the cost lower. More conducive to mass production.
  • the friction shaft 1 includes a shaft end interface 11 and a cover 12, wherein the shaft end interface 11 is connected to the rotating component, and the cover 12 is fixedly connected to the shaft end interface 11.
  • the shaft end interface 11 includes a cylindrical two-side cut platform structure. It should be understood that the cylindrical two-side cut platform structure is only used as an example and not as a limitation.
  • the friction shaft 1 includes a cantilever structure 15, which is fixedly connected to the end surface of the cover 12 facing away from the shaft end interface 11 to provide elastic deformation.
  • the cantilever structure 15 is formed as a core shaft friction part, and its thickness D can be adjusted as needed, that is, the torque can be adjusted accordingly.
  • the friction part is between the inner circle of the friction plate and the outer circle of the core shaft, and the friction torque needs to be adjusted stepwise by changing the number of friction plates, and arbitrary torque changes cannot be achieved.
  • the friction part of the friction hinge A disclosed in the present invention is changed to between the outer circle of the friction shaft 1 and the inner wall of the hole of the housing 2.
  • the thickness D of the friction part of the core shaft can be adjusted steplessly by machining, and any required friction torque can be adjusted within the design range, so that the flip product can achieve any angle stop or slow closing function.
  • the cantilever structure 15 includes a connecting portion 151 and a cantilever portion 152 in the axial direction, wherein the cantilever portion 152 is connected to the cover 12 via the connecting portion 151 .
  • a slot 13 is defined between the cantilever portion 152 and the cover 12, so that the cantilever portion 152 is formed into an elastic structure. It should be understood that the size of the slot 13 can be adjusted as needed to provide the required torque.
  • a through hole 14 is formed inside the cantilever portion 152, so that the cantilever portion 152 is formed into an elastic structure.
  • the through hole 14 is connected to the outside through the gap 141, so that the cantilever portion 152 is formed into a non-closed annular structure.
  • the through hole 14 is not located at the rotation center of the cantilever portion 152, and its eccentric arrangement makes the annular structure of the cantilever portion 152 have a gradual thickness, as shown in FIG8 .
  • Three friction protrusions 16 are formed on the outside of the cantilever part 152, which are interference-fitted with the inner wall of the hole of the housing 2 and can provide rotational friction torque, as shown in FIG8.
  • two friction protrusions 16 are symmetrically located on both sides of the gap 141, and another friction protrusion 16 is located directly below the gap 141, that is, in the same radial direction of the cantilever part 152 as the gap 141.
  • This arrangement can provide the same friction torque/friction force when the friction shaft 1 rotates forward or reversely relative to the housing 2. It should be understood that the specific position and number of the friction protrusions 16 can be adjusted as needed.
  • the housing 2 includes a seal 21 and a shell cavity 22, wherein the shell cavity 22 provides a cavity for the cantilever structure 15 of the friction shaft 1 to be inserted therein to form a friction pair, and the seal 21 is connected and fixed at the outlet of the shell cavity 22 to cooperate with the cover 12 of the friction shaft 1 to form a closed space, thereby protecting the friction pair contained therein and preventing foreign matter from entering.
  • the inner wall of the hole of the shell cavity 22 is interference-fitted with the friction protrusion 16 of the friction shaft 1.
  • FIG. 10 shows a variant of the friction shaft 1, which differs from the friction shaft 1 shown in FIG. 6 to FIG. 8 only in that, for the three friction protrusions 16 formed outside the cantilever portion 152, in the orientation shown in the figure, the first friction protrusion 16a and the second friction protrusion 16b are respectively located on both sides of the gap 141 in a bilaterally symmetrical manner, but the third friction protrusion 16c is not located directly below the gap 141, but is located below the gap 141 and closer to the second friction protrusion 16b, that is, the third friction protrusion 16c and the gap 141 are not in the same radial direction of the cantilever portion 152, and thus are separated from the first friction protrusion 16a and the second friction protrusion 16b by different distances.
  • the length of the first section 152a of the cantilever portion 152 located between the first friction protrusion 16a and the third friction protrusion 16c is greater than the length of the second section 152b of the cantilever portion 152 located between the second friction protrusion 16b and the third friction protrusion 16c.
  • this arrangement can provide a larger lever arm when the friction shaft 1 rotates rightward relative to the housing 2, and provide a smaller lever arm when the friction shaft 1 rotates leftward relative to the housing 2, that is, the force required when the friction shaft 1 rotates rightward relative to the housing 2 is smaller than the force required when the friction shaft 1 rotates leftward relative to the housing 2. Therefore, this arrangement can achieve the effect of providing different friction torques/friction forces in forward and reverse rotations.
  • the cantilever portion 152 can form a multi-layer structure along its axial direction, that is, the thickness D can be formed by multiple layers, grooves are provided between adjacent layers, and each layer is provided with one or more friction protrusions 16.
  • the housing 2 further includes a mounting point 23 and a mounting structure 24, wherein the mounting point 23 is formed on the mounting structure 24 so that the housing 2 is fixed.
  • the mounting point 23 is a screw hole, and a screw is installed through the screw hole to install and connect the housing 2 to the fixing bracket.
  • the screw hole here is only used as an example and not a limitation, and structures such as rivet holes can also be used here.
  • the mounting structure 24 is an ear piece, which contacts the fixing bracket to prevent the housing 2 from rotating.
  • the deformation stiffness of the cantilever structure 15 can be controlled by the width of the slot 13 of the friction shaft 1 or the shape of the through hole 14.
  • the protrusion size of the friction protrusion 16 can control the friction shaft 1 and the shell.
  • the positive pressure of the interference part between the friction shaft 1 and the housing 2 can be controlled by the deformation stiffness and the interference, thereby controlling the friction torque during relative rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

La présente invention se rapporte à une charnière à friction, comprenant un arbre de friction et un boîtier, l'arbre de friction étant doté d'une structure en porte-à-faux formée dans une partie de friction de mandrin, le boîtier étant doté d'une cavité de boîtier pour fournir une cavité pour la structure en porte-à-faux devant être insérée pour former une paire de friction, et lorsque l'arbre de friction se déplace par rapport au boîtier, un couple est fourni au moyen d'une friction entre la paroi interne d'un trou de la cavité de boîtier et le cercle externe de la structure en porte-à-faux. La présente invention concerne en outre un composant intérieur de véhicule comprenant la charnière à friction. Selon la charnière à friction de la présente invention, une plaque de friction et un mandrin sont combinés en un arbre de friction, réduisant le nombre de pièces d'assemblage ; de plus, lors de l'assemblage de l'arbre de friction au boîtier, un alignement précis n'est pas requis, et l'arbre de friction peut être installé dans le boîtier selon n'importe quel angle et dans n'importe quelle position de la circonférence, ce qui permet de réduire la difficulté d'assemblage, d'abaisser le coût et de mieux faciliter la production par lots.
PCT/CN2024/099317 2023-06-15 2024-06-14 Charnière à friction et composant intérieur de véhicule comprenant cette dernière Ceased WO2024255865A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310715915.XA CN118532390A (zh) 2023-06-15 2023-06-15 一种摩擦铰链及包含该摩擦铰链的车辆内部部件
CN202310715915.X 2023-06-15

Publications (1)

Publication Number Publication Date
WO2024255865A1 true WO2024255865A1 (fr) 2024-12-19

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PCT/CN2024/099317 Ceased WO2024255865A1 (fr) 2023-06-15 2024-06-14 Charnière à friction et composant intérieur de véhicule comprenant cette dernière

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CN (1) CN118532390A (fr)
WO (1) WO2024255865A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW568167U (en) * 2002-11-14 2003-12-21 Wen-Bau Jang Anti-removal hinge structure
CN2793409Y (zh) * 2005-02-04 2006-07-05 徐月霞 可调整弹性的枢纽器结构
CN2849298Y (zh) * 2005-09-02 2006-12-20 富港电子（东莞）有限公司 可作自由角度定位的枢轴
CN201034112Y (zh) * 2007-04-06 2008-03-12 富港电子（东莞）有限公司 具有定位功能的枢纽器
CN208185203U (zh) * 2018-03-28 2018-12-04 杭州安费诺飞凤通信部品有限公司 新型摩擦转轴铰链

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW568167U (en) * 2002-11-14 2003-12-21 Wen-Bau Jang Anti-removal hinge structure
CN2793409Y (zh) * 2005-02-04 2006-07-05 徐月霞 可调整弹性的枢纽器结构
CN2849298Y (zh) * 2005-09-02 2006-12-20 富港电子（东莞）有限公司 可作自由角度定位的枢轴
CN201034112Y (zh) * 2007-04-06 2008-03-12 富港电子（东莞）有限公司 具有定位功能的枢纽器
CN208185203U (zh) * 2018-03-28 2018-12-04 杭州安费诺飞凤通信部品有限公司 新型摩擦转轴铰链

Also Published As

Publication number Publication date
CN118532390A (zh) 2024-08-23

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