WO2020050078A1 - Joint for power transmission shaft - Google Patents

Joint for power transmission shaft Download PDF

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Publication number
WO2020050078A1
WO2020050078A1 PCT/JP2019/033237 JP2019033237W WO2020050078A1 WO 2020050078 A1 WO2020050078 A1 WO 2020050078A1 JP 2019033237 W JP2019033237 W JP 2019033237W WO 2020050078 A1 WO2020050078 A1 WO 2020050078A1
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WO
WIPO (PCT)
Prior art keywords
yoke
opening
shaft
disk member
rotation axis
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Application number
PCT/JP2019/033237
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French (fr)
Japanese (ja)
Inventor
青木　英和
川崎　剛
健一郎 石倉
Original Assignee
日立オートモティブシステムズ株式会社
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Publication date
Application filed by 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Publication of WO2020050078A1 publication Critical patent/WO2020050078A1/en

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    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/78—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings
    • F16D3/79—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings the disc or ring being metallic

Definitions

  • the present invention relates to a coupling for a power transmission shaft.
  • Patent Document 1 discloses a coupling for a power transmission shaft in which an annular plate (disc member) is disposed at an abutting portion between an output shaft on the transmission side and a shaft main body of a propeller shaft.
  • a yoke having a plurality of arms is attached to ends of the output shaft and the shaft main body. Each arm is bolted to the disk member at regular intervals in the circumferential direction such that the arm on the output shaft side and the arm on the shaft body alternate in the circumferential direction.
  • Lightening holes are formed between the bolt insertion holes in the circumferential direction of the annular plate.
  • a cutout hole is formed inside each bolt insertion hole in the radial direction of the annular plate.
  • An object of the present invention is to provide a power transmission shaft coupling that can reduce stress concentration occurring in a region between openings of a disk member.
  • the first opening provided in each flexible region of the disk member includes a first opening wide portion on the radial outside and a first opening on the radial inside.
  • the first opening intermediate portion provided between the first opening and the narrow portion has a convex shape protruding toward the center of the first opening, and the second opening and the third opening are formed in the circumferential direction. It is provided between the disk member connecting portion and the first opening narrow portion and at a position radially overlapping with the first opening narrow portion.
  • FIG. 2 is an axial end view of the power transmission shaft coupling 1 of the first embodiment.
  • FIG. 3 is a view of the annular plate 6 of the first embodiment as viewed from the X-axis positive direction side.
  • FIG. 3 is an enlarged view of a main part of FIG. 2.
  • FIG. 1 is an axial end view of a power transmission shaft joint 1 according to the first embodiment.
  • the power transmission shaft coupling 1 of the first embodiment is mounted on a vehicle, and connects between an output shaft (first shaft) 2 of a transmission and a shaft main body (second shaft) 3 of a propeller shaft.
  • the transmission is connected to a crankshaft of an engine which is a driving source.
  • the propeller shaft is connected to a rear wheel, which is a driving wheel, via a differential gear.
  • the X axis is set in the direction along the rotation axis O of the output shaft 2, the direction along the X axis is defined as the X axis direction (or simply the axial direction), and The direction toward the shaft body 3 is defined as the X-axis positive direction.
  • the radial direction of the rotation axis O is called a radial direction, and the direction around the rotation axis O is called a circumferential direction.
  • the power transmission shaft coupling 1 is made of metal and includes a first yoke 4, a second yoke 5, and an annular plate (disk member) 6.
  • the first yoke 4 is forged.
  • the first yoke 4 has a first yoke main body 41 and three arm portions (first yoke first connection portion, first yoke second connection portion, first yoke third connection portion) 42.
  • the first yoke main body 41 has a cylindrical shape with both ends opened in the X-axis direction, and the output shaft 2 penetrates inside.
  • the first yoke main body 41 is coupled to the vicinity of the end of the output shaft 2 on the X-axis positive direction side.
  • the three arms 42 branch off from the first yoke main body 41 in a trifurcated manner and protrude radially outward and toward the X-axis positive direction.
  • the arms 42 are arranged at regular intervals (120 deg) in the circumferential direction.
  • Each of the arm portions 42 has a bolt hole 42a near the distal end thereof that penetrates the arm portion 42 in the X-axis direction.
  • the second yoke 5 is a press-formed product.
  • the second yoke 5 has a second yoke main body 51 and three arm parts (second yoke first connection part, second yoke second connection part, second yoke third connection part) 52.
  • the second yoke main body 51 has a hat shape that opens on the X-axis negative direction side.
  • the second yoke main body 51 is fixed to the end of the shaft main body 3 on the X-axis negative direction side by welding.
  • the end of the output shaft 2 on the X-axis positive direction side is inserted radially inward of the second yoke main body 51.
  • the three arm portions 52 branch off from the second yoke body portion 51 in a trifurcated manner and protrude radially outward.
  • the arms 52 are arranged at equal intervals (120 deg) in the circumferential direction.
  • Each of the arm portions 52 has a bolt hole 52a near the distal end thereof that penetrates the arm portion 52 in the X-axis direction.
  • FIG. 2 is a view of the annular plate 6 as viewed from the X-axis positive direction side.
  • the annular plate 6 has a plate body (disk member body) 61, six bolt holes (disk member connection) 62, and a flexible portion 63.
  • the plate main body 61 is formed by laminating a number of flexible metal plates (first disk plate 6a, second disk plate 6b,..., Nth disk plate 6N) in the X-axis direction.
  • the plate body 61 has a circular shape centered on the rotation axis O when viewed from the X-axis direction.
  • the plate main body 61 has a central through hole 61a at the center thereof.
  • the central through-hole 61a has a circular shape centered on the rotation axis O.
  • the output shaft 2 passes through the central through hole 61a. Further, a part of the second yoke main body 51 is located radially inward of the central through hole 61a.
  • the six bolt holes 62 are provided in the plate body 61.
  • the six bolt holes 62 are through holes that penetrate the plate body 61 in the X-axis direction, and are arranged at equal intervals (30 deg) in the circumferential direction.
  • the center of each bolt hole 62 is arranged on a pitch circle C about the rotation axis O.
  • Each bolt hole 62 has three bolt holes (a disk member second yoke first connection portion, a disk member second yoke second connection portion, and a disk member second yoke first connection portion) corresponding to the arm portion 52 on the second yoke 5 side.
  • Three bolt holes (a disc member first yoke first connection portion, a disc member first yoke second connection portion, a disc member first yoke second connection portion) corresponding to the arm portion 42 on the first yoke 4 side. 3b) 62b are alternately arranged.
  • Each arm 42 of the first yoke 4 is fastened to the plate body 61 by bolts (first bolt, third bolt, fifth bolt) 7 and nuts (first nut, third nut, fifth nut) 8. ing.
  • Washers (first washer, third washer, fifth washer) 12a and 12b are interposed between the bolt 7 and the plate body 61 and between the nut 8 and the plate body 61.
  • Each arm 52 of the second yoke 5 is fastened to the plate body 61 by bolts (second bolt, fourth bolt, sixth bolt) 9 and nuts (second nut, fourth nut, sixth nut) 10. ing. Washers (second washers, fourth washers, sixth washers) 13a and 13b are interposed between the bolt 9 and the plate body 61 and between the nut 10 and the plate body 61.
  • the flexible portion 63 is provided on the plate body 61.
  • the flexible portion 63 includes six flexible regions (first flexible region, second flexible region, third flexible region, and fourth flexible region) provided between the bolt holes 62 adjacent in the circumferential direction. Region, fifth flexible region, and sixth flexible region) 63a to 63f.
  • Each of the flexible regions 63a to 63f has a first opening 631, a second opening 632, a third opening 633, a fourth opening 634, and a fifth opening 635.
  • Each of the openings 631, 632, 633, 634, and 635 is a through hole that penetrates the plate body 61 in the X-axis direction.
  • the first opening 631 is a line segment L1 connecting the center of a certain bolt hole 62a and the rotation axis O, and a line segment connecting the center of a certain bolt hole 62a and the center of the bolt hole 62b circumferentially adjacent to the rotation axis O.
  • the first opening 631 has a wide portion (first opening wide portion) 631a, a narrow portion (first opening narrow portion) 631b, and an intermediate portion (first opening intermediate portion) 631c.
  • the wide portion 631a is provided radially inward of the narrow portion 631b and the intermediate portion 631c.
  • the wide portion 631a has a larger circumferential width than the narrow portion 631b and the intermediate portion 631c.
  • the wide portion 631a has an arc shape that protrudes radially inward.
  • the narrow portion 631b is provided radially outside the wide portion 631a.
  • the narrow portion 631b has an arc shape that protrudes radially outward.
  • the outermost portion in the radial direction is located radially outside the pitch circle C.
  • the intermediate portion 631c is provided between the wide portion 631a and the narrow portion 631b.
  • the intermediate portion 631c has a convex shape protruding toward the straight line L3.
  • the second opening 632 is, when viewed from the X-axis positive direction side, in the circumferential direction with the bolt holes 62a and 62b and the first opening 631 (closest to the bolt holes 62a and 62b in the counterclockwise direction). It is provided between the narrow portion 631b). The area of the second opening 632 is smaller than the narrow portion 631b. The second opening 632 is provided at a position overlapping the narrow portion 631b in the radial direction. The second opening 632 has a shape whose outer portion in the radial direction substantially conforms to the outer shape of the plate main body 61.
  • the third opening 633 is, when viewed from the X-axis positive direction side, in the circumferential direction, the width of the bolt holes 62a, 62b and the width of the first opening 631 (closest to the clockwise direction from the bolt holes 62a, 62b).
  • the area of the third opening 633 is smaller than the narrow portion 631b.
  • the third opening 633 is provided at a position overlapping the narrow portion 631b in the radial direction.
  • the third opening 633 has a shape whose outer portion in the radial direction substantially conforms to the outer shape of the plate body 61.
  • the second opening 632 and the third opening 633 have shapes that are symmetric with respect to the straight line L3.
  • the shortest distance d1 between the second opening 632 and the third opening 633 and the outer peripheral edge 61b of the plate main body 61 is between the narrow portion 631b and the outer peripheral edge 61b of the plate main body 61. It is shorter than the shortest distance d2.
  • the fourth opening 634 is provided radially inside the bolt hole 62a. That is, the fourth opening 634 is provided at a position overlapping the bolt hole 62a in the circumferential direction.
  • the fourth opening 634 is located radially inward of the intermediate portion 631c of the first opening 631.
  • the fifth opening 635 is provided radially inside the bolt hole 62b. That is, the fifth opening 635 is provided at a position overlapping the bolt hole 62b in the circumferential direction.
  • the fifth opening 635 is located radially inward of the intermediate portion 631c of the first opening 631.
  • the fourth opening 634 and the fifth opening 635 have shapes that are symmetric with respect to the straight line L3. In the radial direction, the shortest distance d3 between the fourth opening 634 and the fifth opening 635 and the central through-hole 61a is shorter than the shortest distance d4 between the wide portion 631a and the central through-hole 61a.
  • FIG. 3 is an enlarged view of a main part of FIG.
  • Each of the disk plates 6a to 6N constituting the annular plate 6 has a plurality of caulking fixing portions 11 partially connected to each other by caulking in a cross section perpendicular to the rotation axis O.
  • Two each of the caulking fixing portions 11 are provided radially outside of each bolt hole 62.
  • Two caulking fixing portions 11, 11 provided radially outside of a certain bolt hole 62a are arranged at line-symmetric positions with an axis L4 connecting the center of the bolt hole 62a and the rotation axis O as a symmetric axis. .
  • each caulking fixing portion 11 is arranged at a position offset in the circumferential direction with respect to the axis L4 connecting the center of the bolt hole 62 and the center of the annular plate 6.
  • the caulking fixing portion 11 overlaps with the washer 12b in a cross section perpendicular to the rotation axis O.
  • the first openings 631 provided in the flexible regions 63a to 63f of the annular plate 6 include a radially outer wide portion 631a and a radially inner narrow portion 631b.
  • An intermediate portion 631c provided between the first opening 631 and the second opening 631 has a convex shape protruding toward the center of the first opening 631.
  • the cross-sectional area of the annular plate 6 on the outer side in the circumferential direction of the intermediate portion 631c is reduced by the amount of the protrusion.
  • the peripheral length of the outer peripheral edge 61b of the first opening 631 becomes longer. Therefore, it is possible to suppress an increase in internal stress of the annular plate 6 in each of the region between the first opening 631 and the second opening 632 and the region between the first opening 631 and the third opening 633.
  • the second opening 632 and the third opening 633 are provided between the bolt hole 62 and the narrow portion 631b in the circumferential direction and at a position radially overlapping the narrow portion 631b. Thereby, deformation in the second opening 632 and the third opening 633 is suppressed, and breakage in the second opening 632 and the third opening 633 can be suppressed.
  • stress concentration occurring in the region between the openings of the annular plate 6 can be reduced as compared with the conventional power transmission shaft joint.
  • the narrow portion 631b of the first opening 631 has an arc shape that protrudes outward in the radial direction. As a result, the change in the radial dimension at the circumferential position of the radially outer portion of the narrow portion 631b becomes gentle, so that the stress concentration at this portion can be reduced.
  • the narrow portion 631b of the first opening 631 has a radially outermost portion passing through the center of the annular plate 6 in a cross section perpendicular to the rotation axis O and having a diameter smaller than the pitch circle C centered on the rotation axis O. It has a shape located outside in the direction.
  • each of the second opening 632 and the third opening 633 has a radially outer portion having a shape along the outer shape of the annular plate 6.
  • the wide portion 631a of the first opening 631 has an arc shape that protrudes radially inward.
  • the change in the radial dimension at the circumferential position of the radially inner portion of the outer peripheral edge of the wide portion 631a becomes gentle, so that the stress concentration at this portion can be reduced.
  • Each of the flexible regions 63a to 63f has a fourth opening 634 and a fifth opening 635, which are through holes provided in the annular plate 6, and each of the fourth opening 634 and the fifth opening 635 has a peripheral portion. In the direction, it overlaps with any of the bolt holes 62, and is provided inward of the intermediate portion 631c in the radial direction.
  • the fourth opening 634 and the fifth opening 635 are provided in each of the flexible regions 63a to 63f, the flexibility of the annular plate 6 in the axial direction is improved, and the output shaft 2 of the transmission as the power transmission shaft is provided. In addition, the vibration absorption characteristics of the shaft body 3 of the propeller shaft can be improved.
  • the wide portion 631a of the first opening 631 is formed such that the shortest distance d4 between the center opening 61a in the radial direction and the center opening 61a in the radial direction is the distance between the fourth opening 634 and the fifth opening 635. It is longer than the shortest distance d3. Since the wide portion 631a has a relatively large opening area, the rigidity of the wide portion 631a and the radially inner portion can be reduced by securing a sufficient length (width) of the plate body portion 61 on the radially inner portion. Excessive reduction can be suppressed.
  • the wide portion 631a has an arc shape that protrudes inward in the radial direction.
  • the radial dimension of the portion between the wide portion 631a and the fourth opening 634 and the fifth opening 635 changes gradually at the circumferential position, so that stress concentration at this portion can be reduced.
  • the shortest distance d2 between the outer peripheral edge 61b of the plate main body 61 in the radial direction and the outer peripheral edge 61b of the plate main body 61 in the radial direction, the second opening 632, and the third opening 633 are different from each other. Longer than the shortest distance d1 between.
  • the narrow portion 631b has a relatively large opening area as a whole of the first opening 631, by ensuring a sufficient length (width) of the plate body portion 61 in the radially outer portion, the narrow portion 631b is formed. And it can suppress that rigidity in the radial outside part falls too much.
  • the plate main body 61 is formed of a metal material and includes a first disk plate 6a, a second disk plate 6b,..., An N-th disk plate 6N, and each of the disk plates 6a to 6N has a cross section perpendicular to the rotation axis O. Has a caulking fixing portion 11 connected to each other by partial caulking.
  • Each caulking fixing portion 11 overlaps a washer (washer 12b or washer 13b) in a cross section perpendicular to the rotation axis O. That is, by applying an axial force to the caulking fixing portion 11 by fastening a bolt (bolt 7 or bolt 9) and a nut (nut 8 or nut 10) via a washer (washer 12b or washer 13b), the annular plate 6 is formed. It is possible to suppress the breakage of the caulking fixing portion 11 when the caulking fixing portion 11 is bent and stress is generated.
  • the caulking fixing portion 11 is provided outside the bolt hole 62 in the radial direction.
  • the moment arm which is the distance between the center (rotation axis O) of the annular plate 6 and the caulking fixing portion 11
  • the caulking fixing portion 11 is provided at a position offset in the circumferential direction with respect to an axis L4 connecting the center of the bolt hole 62 and the center of the annular plate 6 in a cross section perpendicular to the rotation axis O.
  • the number of disk plates may be two or more.
  • the number of disk member connection portions may be four or more.
  • the number of the flexible portions may be three or more.
  • the caulking fixing portion may be one or more in the entire disk member.
  • the power transmission shaft coupling is a first yoke in a power transmission shaft coupling provided between a first shaft and a second shaft provided between a driving source of a vehicle and a driving wheel.
  • the first connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the first shaft, and the first yoke second connection portion is provided with the first shaft with respect to the first shaft.
  • a first yoke and a second yoke which are provided radially outward with respect to the rotation axis of the second yoke, a second yoke main body, a second yoke first connection portion, and a second yoke second connection portion.
  • the second yoke main body is connectable to the second shaft, and the second yoke first contact
  • the portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the second shaft
  • the second yoke second connection portion is provided with a rotation axis of the first shaft with respect to the second shaft.
  • the disk member connecting portion is formed of a conductive material and has a plate shape, and the disk member connecting portion is provided on the disk member main body portion, and the disk member first yoke first connecting portion, the disk member first yoke second connecting portion, A disk member second yoke first connection portion; and a disk member second yoke second connection portion, wherein the flexible portion is provided in the disk member main body portion and includes a first flexible region and a second flexible region.
  • the disk member first yoke first connection portion, the first flexible region, the disk member second yoke first connection portion, the second flexible region, the disk member first yoke second A connecting portion, the third flexible region, and the disc member second yoke second connecting portion are arranged in this order, the disc member first yoke first connecting portion, the disc member first yoke second connecting portion,
  • the disc member second yoke first connection portion and the disc member second yoke second connection portion are respectively the first yoke first connection portion, the first yoke second connection portion, and the second yoke first connection portion.
  • the second yoke and the second connecting portion are connected to each other, and each of the first flexible region, the second flexible region, and the third flexible region is provided on the disk member main body.
  • a first opening which is a through hole; , A second opening, and a third opening, wherein the first opening comprises a first opening wide part, a first opening narrow part, and a first opening middle part,
  • the wide opening portion has a circumferential width with respect to the rotation axis of the first shaft that is larger than the first narrow opening portion and the first middle opening portion
  • the first narrow opening portion includes: The first opening is provided outside the wide portion of the first opening in the radial direction with respect to the rotation axis of the first shaft, and the intermediate portion of the first opening is provided with the first opening in the radial direction with respect to the rotation axis of the first shaft.
  • a convex portion provided between the wide portion and the narrow portion of the first opening, and protruding toward a central portion of the first opening in a circumferential direction about a rotation axis of the first shaft;
  • Each of the second opening and the third opening is provided in the circumferential direction with respect to the rotation axis of the first shaft.
  • the first opening narrow portion has an arc shape that protrudes radially outward with respect to the rotation axis of the first shaft.
  • the disc member connecting part is a through hole provided in the disc member main body part, and the first opening narrow part is the first shaft narrow part. The outermost portion in the radial direction with respect to the rotation axis passes through the center of the disk member connection portion in a cross section perpendicular to the rotation axis of the first shaft, and is larger than the pitch circle centered on the rotation axis of the first shaft. It has a shape located on the outside in the radial direction.
  • an outer shape of the disk member body has a circular shape centered on a rotation axis of the first axis
  • the second opening The third opening has a shape in which a radially outer portion with respect to the rotation axis of the first shaft has a shape along the outer shape of the disk member main body.
  • the first opening wide portion has an arc shape that protrudes radially inward with respect to the rotation axis of the first shaft.
  • each of the first flexible region, the second flexible region, and the third flexible region is a through hole provided in the disk member main body.
  • a fourth opening and a fifth opening are provided, and each of the fourth opening and the fifth opening is connected to one of the disk member connecting portions in a circumferential direction with respect to the rotation axis of the first shaft. It overlaps and is provided inside the first opening intermediate portion in the radial direction with respect to the rotation axis of the first shaft.
  • the disc member has a central through-hole, and the central through-hole is provided in the disk member main body, and is centered on a rotation axis of the first shaft.
  • the first opening wide portion has a shortest distance from the central through-hole in a radial direction with respect to a rotation axis of the first shaft, and the first opening wide portion has a rotation axis of the first shaft.
  • the length is longer than the shortest distance between the central through hole and the fourth opening or the fifth opening in the radial direction.
  • the first opening wide portion has an arc shape that protrudes radially inward with respect to the rotation axis of the first shaft.
  • an outer shape of the disk member main body has a circular shape centered on a rotation axis of the first shaft, and the first opening portion The narrow portion has a shortest distance between the outer peripheral edge of the disk member main body in the radial direction with respect to the rotation axis of the first shaft and the outermost portion of the narrow portion outside the disk member main body in the radial direction with respect to the rotation axis of the first shaft. It is longer than the shortest distance between the peripheral edge and the second opening or the third opening.
  • the disk member is formed of a metal material, and includes a first disk plate and a second disk plate, wherein the first disk plate and the second disk plate are A crimp fixing portion partially connected to each other by caulking in a section perpendicular to the rotation axis of the first shaft.
  • the nut fastens the second yoke first connection portion and the disk member second yoke first connection portion, and the third washer is provided between the third nut and the disk member.
  • the fourth bolt and the fourth nut fasten the second yoke second connection portion and the disk member second yoke second connection portion, and the fourth washer is connected to the fourth nut and the fourth nut.
  • the caulking fixing portion is provided between the disk members, and has a cross section perpendicular to the rotation axis of the first shaft, the first washer, the second washer, the third washer, or the fourth washer. And overlap.
  • the caulking fixing portion is provided outside the disk member connection portion in a radial direction of a rotation axis of the first shaft.
  • the disk member connecting portion is a through hole provided in the disk member main body and having a circular shape in a cross section perpendicular to the rotation axis of the first shaft.
  • the caulking fixing portion is related to a rotation axis of the first shaft with respect to an axis connecting the center of the disk member connection portion and the center of the disk member in a cross section perpendicular to the rotation axis of the first shaft. It is provided at an offset position in the circumferential direction.
  • the present invention is not limited to the above-described embodiment, and includes various modifications.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described above.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of one embodiment can be added to the configuration of another embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

This joint for a power transmission shaft is configured such that a first opening is provided in each flexible region of an annular plate, and an intermediate section provided between a wide section on the radial outer-side and a narrow section on the radial inner-side has a protruding shape protruding towards a central section of the first opening.

Description

動力伝達軸用継手Power transmission shaft coupling
　本発明は、動力伝達軸用継手に関する。 The present invention relates to a coupling for a power transmission shaft.
　特許文献１には、変速機側の出力軸とプロペラシャフトのシャフト本体との突き合わせ部に環状プレート（ディスク部材）が配置された動力伝達軸用継手が開示されている。出力軸およびシャフト本体の端部には、複数のアームを有するヨークが取り付けられている。各アームは、出力軸側のものとシャフト本体側のものとが周方向で交互となるように、ディスク部材に周方向一定間隔でボルト締結されている。環状プレートの周方向において、各ボルト挿通孔間には、肉抜き孔が形成されている。また、環状プレートの径方向において、各ボルト挿通孔の内側には、切り欠き孔が形成されている。 Patent Document 1 discloses a coupling for a power transmission shaft in which an annular plate (disc member) is disposed at an abutting portion between an output shaft on the transmission side and a shaft main body of a propeller shaft. A yoke having a plurality of arms is attached to ends of the output shaft and the shaft main body. Each arm is bolted to the disk member at regular intervals in the circumferential direction such that the arm on the output shaft side and the arm on the shaft body alternate in the circumferential direction. Lightening holes are formed between the bolt insertion holes in the circumferential direction of the annular plate. A cutout hole is formed inside each bolt insertion hole in the radial direction of the annular plate.
特開2003-49863号公報JP 2003-49863 A
　しかしながら、上記特許文献１にあっては、出力軸およびシャフト本体部間のトルク伝達時、環状プレートの肉抜き孔および切り欠き孔間の領域に応力が集中し、環状プレートが破損するおそれがあった。 However, according to Patent Document 1, when torque is transmitted between the output shaft and the shaft body, stress concentrates in a region between the lightening hole and the cutout hole of the annular plate, and the annular plate may be damaged. Was.
  本発明の目的の一つは、ディスク部材の開口部間の領域に生じる応力集中を緩和できる動力伝達軸用継手を提供することにある。
　本発明の一実施形態における動力伝達軸用継手は、ディスク部材の各可撓領域に設けられた第１開口部は、径方向外側の第１開口部幅広部と径方向内側の第１開口部幅狭部との間に設けられた第１開口部中間部が、第１開口部の中央部に向かって突出する凸形状を有し、第２開口部および第３開口部は、周方向におけるディスク部材接続部と第１開口部幅狭部との間であって、第１開口部幅狭部と径方向にオーバーラップする位置に設けられている。 An object of the present invention is to provide a power transmission shaft coupling that can reduce stress concentration occurring in a region between openings of a disk member.
In the power transmission shaft joint according to one embodiment of the present invention, the first opening provided in each flexible region of the disk member includes a first opening wide portion on the radial outside and a first opening on the radial inside. The first opening intermediate portion provided between the first opening and the narrow portion has a convex shape protruding toward the center of the first opening, and the second opening and the third opening are formed in the circumferential direction. It is provided between the disk member connecting portion and the first opening narrow portion and at a position radially overlapping with the first opening narrow portion.
　よって、本発明の一実施形態によれば、ディスク部材の開口部間の領域に生じる応力集中を緩和できる。 Therefore, according to the embodiment of the present invention, it is possible to reduce stress concentration occurring in the region between the openings of the disk member.
実施形態１の動力伝達軸用継手1の軸方向端面図である。FIG. 2 is an axial end view of the power transmission shaft coupling 1 of the first embodiment. 実施形態１の環状プレート6をX軸正方向側から見た図である。FIG. 3 is a view of the annular plate 6 of the first embodiment as viewed from the X-axis positive direction side. 図２の要部拡大図である。FIG. 3 is an enlarged view of a main part of FIG. 2.
　〔実施形態１〕
  図１は、実施形態１の動力伝達軸用継手1の軸方向端面図である。
  実施形態１の動力伝達軸用継手1は、車両に搭載され、変速機の出力軸（第１軸）2およびプロペラシャフトのシャフト本体部（第２軸）3間を接続する。変速機は、駆動源であるエンジンのクランクシャフトと連結されている。プロペラシャフトは、デファレンシャルギアを介して、駆動輪である後輪と連結されている。以下の説明では、出力軸2の回転軸線Oに沿う方向にX軸を設定し、X軸に沿う方向をX軸方向（または単に軸方向）とし、X軸方向のうち出力軸2の側からシャフト本体部3の側へ向かう方向をX軸正方向とする。また、回転軸線Oの放射方向を径方向、回転軸線O周りの方向を周方向という。 [Embodiment 1]
FIG. 1 is an axial end view of a power transmission shaft joint 1 according to the first embodiment.
The power transmission shaft coupling 1 of the first embodiment is mounted on a vehicle, and connects between an output shaft (first shaft) 2 of a transmission and a shaft main body (second shaft) 3 of a propeller shaft. The transmission is connected to a crankshaft of an engine which is a driving source. The propeller shaft is connected to a rear wheel, which is a driving wheel, via a differential gear. In the following description, the X axis is set in the direction along the rotation axis O of the output shaft 2, the direction along the X axis is defined as the X axis direction (or simply the axial direction), and The direction toward the shaft body 3 is defined as the X-axis positive direction. The radial direction of the rotation axis O is called a radial direction, and the direction around the rotation axis O is called a circumferential direction.
　動力伝達軸用継手1は、金属製であり、第１ヨーク4、第２ヨーク5および環状プレート（ディスク部材）6を有する。
  第１ヨーク4は、鍛造製である。第１ヨーク4は、第１ヨーク本体部41および３つのアーム部（第１ヨーク第１接続部、第１ヨーク第２接続部、第１ヨーク第３接続部）42を有する。第１ヨーク本体部41は、X軸方向両端が開口する円筒形状を有し、内部に出力軸2が貫通する。第１ヨーク本体部41は、出力軸2のX軸正方向側の端部付近と結合されている。３つのアーム部42は、第１ヨーク本体部41から三叉状に分岐し、径方向外側かつX軸正方向側へ突出する。各アーム部42は、周方向に等間隔(120deg)で並ぶ。各アーム部42は、その先端付近に、アーム部42をX軸方向に貫通するボルト穴42aを有する。 The power transmission shaft coupling 1 is made of metal and includes a first yoke 4, a second yoke 5, and an annular plate (disk member) 6.
The first yoke 4 is forged. The first yoke 4 has a first yoke main body 41 and three arm portions (first yoke first connection portion, first yoke second connection portion, first yoke third connection portion) 42. The first yoke main body 41 has a cylindrical shape with both ends opened in the X-axis direction, and the output shaft 2 penetrates inside. The first yoke main body 41 is coupled to the vicinity of the end of the output shaft 2 on the X-axis positive direction side. The three arms 42 branch off from the first yoke main body 41 in a trifurcated manner and protrude radially outward and toward the X-axis positive direction. The arms 42 are arranged at regular intervals (120 deg) in the circumferential direction. Each of the arm portions 42 has a bolt hole 42a near the distal end thereof that penetrates the arm portion 42 in the X-axis direction.
　第２ヨーク5は、プレス成形品である。第２ヨーク5は、第２ヨーク本体部51および３つのアーム部（第２ヨーク第１接続部、第２ヨーク第２接続部、第２ヨーク第３接続部）52を有する。第２ヨーク本体部51は、X軸負方向側に開口するハット形状を有する。第２ヨーク本体部51は、シャフト本体部3のX軸負方向側の端縁に溶接固定されている。第２ヨーク本体部51の径方向内側には、出力軸2のX軸正方向側の端部が挿入されている。３つのアーム部52は、第２ヨーク本体部51から三叉状に分岐し、径方向外側へ突出する。各アーム部52は、周方向に等間隔(120deg)で並ぶ。各アーム部52は、その先端付近に、アーム部52をX軸方向に貫通するボルト穴52aを有する。 The second yoke 5 is a press-formed product. The second yoke 5 has a second yoke main body 51 and three arm parts (second yoke first connection part, second yoke second connection part, second yoke third connection part) 52. The second yoke main body 51 has a hat shape that opens on the X-axis negative direction side. The second yoke main body 51 is fixed to the end of the shaft main body 3 on the X-axis negative direction side by welding. The end of the output shaft 2 on the X-axis positive direction side is inserted radially inward of the second yoke main body 51. The three arm portions 52 branch off from the second yoke body portion 51 in a trifurcated manner and protrude radially outward. The arms 52 are arranged at equal intervals (120 deg) in the circumferential direction. Each of the arm portions 52 has a bolt hole 52a near the distal end thereof that penetrates the arm portion 52 in the X-axis direction.
　図２は、環状プレート6をX軸正方向側から見た図である。環状プレート6は、プレート本体部（ディスク部材本体部）61、６個のボルト穴（ディスク部材接続部）62および可撓部63を有する。
  プレート本体部61は、可撓性を有する多数の金属板（第１ディスク板6a、第２ディスク板6b、…第Nディスク板6N）をX軸方向に重ね合わせて成形されている。プレート本体部61は、X軸方向から見たとき、回転軸線Oを中心とする円形状を有する。プレート本体部61は、その中心に中央貫通孔61aを有する。中央貫通孔61aは、回転軸線Oを中心とする円形状を有する。中央貫通孔61aには、出力軸2が貫通する。また、中央貫通孔61aの径方向内側には、第２ヨーク本体部51の一部が位置する。 FIG. 2 is a view of the annular plate 6 as viewed from the X-axis positive direction side. The annular plate 6 has a plate body (disk member body) 61, six bolt holes (disk member connection) 62, and a flexible portion 63.
The plate main body 61 is formed by laminating a number of flexible metal plates (first disk plate 6a, second disk plate 6b,..., Nth disk plate 6N) in the X-axis direction. The plate body 61 has a circular shape centered on the rotation axis O when viewed from the X-axis direction. The plate main body 61 has a central through hole 61a at the center thereof. The central through-hole 61a has a circular shape centered on the rotation axis O. The output shaft 2 passes through the central through hole 61a. Further, a part of the second yoke main body 51 is located radially inward of the central through hole 61a.
　６個のボルト穴62は、プレート本体部61に設けられている。６個のボルト穴62は、プレート本体部61をX軸方向に貫通する貫通孔であって、周方向に等間隔(30deg)で並ぶ。各ボルト穴62の中心は、回転軸線Oを中心とするピッチ円C上に配置されている。各ボルト穴62は、第２ヨーク5側のアーム部52に対応する３個のボルト穴（ディスク部材第２ヨーク第１接続部、ディスク部材第２ヨーク第２接続部、ディスク部材第２ヨーク第３接続部）62aと第１ヨーク4側のアーム部42に対応する３個のボルト穴（ディスク部材第１ヨーク第１接続部、ディスク部材第１ヨーク第２接続部、ディスク部材第１ヨーク第３接続部）62bとが交互に並ぶ。第１ヨーク4の各アーム部42は、ボルト（第１ボルト、第３ボルト、第５ボルト）7およびナット（第１ナット、第３ナット、第５ナット）8によりプレート本体部61に締結されている。ボルト7とプレート本体部61との間、およびナット8とプレート本体部61との間には、ワッシャ（第１座金、第３座金、第５座金）12a,12bが介装されている。第２ヨーク5の各アーム部52は、ボルト（第２ボルト、第４ボルト、第６ボルト）9およびナット（第２ナット、第４ナット、第６ナット）10によりプレート本体部61に締結されている。ボルト9とプレート本体部61との間、およびナット10とプレート本体部61との間には、ワッシャ（第２座金、第４座金、第６座金）13a,13bが介装されている。 # Six bolt holes 62 are provided in the plate body 61. The six bolt holes 62 are through holes that penetrate the plate body 61 in the X-axis direction, and are arranged at equal intervals (30 deg) in the circumferential direction. The center of each bolt hole 62 is arranged on a pitch circle C about the rotation axis O. Each bolt hole 62 has three bolt holes (a disk member second yoke first connection portion, a disk member second yoke second connection portion, and a disk member second yoke first connection portion) corresponding to the arm portion 52 on the second yoke 5 side. Three bolt holes (a disc member first yoke first connection portion, a disc member first yoke second connection portion, a disc member first yoke second connection portion) corresponding to the arm portion 42 on the first yoke 4 side. 3b) 62b are alternately arranged. Each arm 42 of the first yoke 4 is fastened to the plate body 61 by bolts (first bolt, third bolt, fifth bolt) 7 and nuts (first nut, third nut, fifth nut) 8. ing. Washers (first washer, third washer, fifth washer) 12a and 12b are interposed between the bolt 7 and the plate body 61 and between the nut 8 and the plate body 61. Each arm 52 of the second yoke 5 is fastened to the plate body 61 by bolts (second bolt, fourth bolt, sixth bolt) 9 and nuts (second nut, fourth nut, sixth nut) 10. ing. Washers (second washers, fourth washers, sixth washers) 13a and 13b are interposed between the bolt 9 and the plate body 61 and between the nut 10 and the plate body 61.
　可撓部63は、プレート本体部61に設けられている。可撓部63は、周方向に隣接するボルト穴62同士の間に設けられた６個の可撓領域（第１可撓領域、第２可撓領域、第３可撓領域、第４可撓領域、第５可撓領域、第６可撓領域）63a～63fを有する。各可撓領域63a～63fは、第１開口部631、第２開口部632、第３開口部633、第４開口部634および第５開口部635を有する。各開口部631,632,633,634,635は、いずれもプレート本体部61をX軸方向に貫通する貫通孔である。
  第１開口部631は、あるボルト穴62aの中心と回転軸線Oとを結ぶ線分をL1、あるボルト穴62aと周方向に隣接するボルト穴62bの中心と回転軸線Oとを結ぶ線分をL2、線分L1と線分L2との成す角度のうち劣角θ(＝120[deg])の二等分線を直線L3としたとき、直線L3を対称軸とする線対称な形状を有する。 The flexible portion 63 is provided on the plate body 61. The flexible portion 63 includes six flexible regions (first flexible region, second flexible region, third flexible region, and fourth flexible region) provided between the bolt holes 62 adjacent in the circumferential direction. Region, fifth flexible region, and sixth flexible region) 63a to 63f. Each of the flexible regions 63a to 63f has a first opening 631, a second opening 632, a third opening 633, a fourth opening 634, and a fifth opening 635. Each of the openings 631, 632, 633, 634, and 635 is a through hole that penetrates the plate body 61 in the X-axis direction.
The first opening 631 is a line segment L1 connecting the center of a certain bolt hole 62a and the rotation axis O, and a line segment connecting the center of a certain bolt hole 62a and the center of the bolt hole 62b circumferentially adjacent to the rotation axis O. L2, has a line-symmetrical shape with the straight line L3 as the axis of symmetry when the bisector of the inferior angle θ (= 120 [deg]) is the straight line L3 among the angles formed by the line segment L1 and the line segment L2. .
　第１開口部631は、幅広部（第１開口部幅広部）631a、幅狭部（第１開口部幅狭部）631bおよび中間部（第１開口部中間部）631cを有する。幅広部631aは、幅狭部631bおよび中間部631cよりも径方向内側に設けられている。幅広部631aは、幅狭部631bおよび中間部631cよりも周方向の幅が大きい。幅広部631aは、径方向内側へ向かって凸となる円弧形状を有する。幅狭部631bは、幅広部631aよりも径方向外側に設けられている。幅狭部631bは、径方向外側へ向かって凸となる円弧形状を有する。幅狭部631bは、径方向で最も外側となる部分が、ピッチ円Cよりも径方向外側に位置する。中間部631cは、幅広部631aと幅狭部631bとの間に設けられている。中間部631cは、直線L3側へ向かって突出する凸形状を有する。 The first opening 631 has a wide portion (first opening wide portion) 631a, a narrow portion (first opening narrow portion) 631b, and an intermediate portion (first opening intermediate portion) 631c. The wide portion 631a is provided radially inward of the narrow portion 631b and the intermediate portion 631c. The wide portion 631a has a larger circumferential width than the narrow portion 631b and the intermediate portion 631c. The wide portion 631a has an arc shape that protrudes radially inward. The narrow portion 631b is provided radially outside the wide portion 631a. The narrow portion 631b has an arc shape that protrudes radially outward. In the narrow portion 631b, the outermost portion in the radial direction is located radially outside the pitch circle C. The intermediate portion 631c is provided between the wide portion 631a and the narrow portion 631b. The intermediate portion 631c has a convex shape protruding toward the straight line L3.
　第２開口部632は、X軸正方向側から見たとき、周方向において、ボルト穴62a,62bと、当該ボルト穴62a,62bから反時計回りの方向に最も近い第１開口部631（の幅狭部631b）との間に設けられている。第２開口部632の面積は、幅狭部631bよりも小さい。第２開口部632は、径方向において、幅狭部631bとオーバーラップする位置に設けられている。第２開口部632は、径方向外側の部分が、プレート本体部61の外形に略沿った形状を有する。
  第３開口部633は、X軸正方向側から見たとき、周方向において、ボルト穴62a,62bと、当該ボルト穴62a,62bから時計回りの方向に最も近い第１開口部631（の幅狭部631b）との間に設けられている。第３開口部633の面積は、幅狭部631bよりも小さい。第３開口部633は、径方向において、幅狭部631bとオーバーラップする位置に設けられている。第３開口部633は、径方向外側の部分が、プレート本体部61の外形に略沿った形状を有する。第２開口部632と第３開口部633は、直線L3に対して対称な形状を有する。
  径方向において、第２開口部632および第３開口部633とプレート本体部61の外周縁61bとの間の最短距離d1は、幅狭部631bとプレート本体部61の外周縁61bとの間の最短距離d2よりも短い。 The second opening 632 is, when viewed from the X-axis positive direction side, in the circumferential direction with the bolt holes 62a and 62b and the first opening 631 (closest to the bolt holes 62a and 62b in the counterclockwise direction). It is provided between the narrow portion 631b). The area of the second opening 632 is smaller than the narrow portion 631b. The second opening 632 is provided at a position overlapping the narrow portion 631b in the radial direction. The second opening 632 has a shape whose outer portion in the radial direction substantially conforms to the outer shape of the plate main body 61.
The third opening 633 is, when viewed from the X-axis positive direction side, in the circumferential direction, the width of the bolt holes 62a, 62b and the width of the first opening 631 (closest to the clockwise direction from the bolt holes 62a, 62b). The narrow portion 631b). The area of the third opening 633 is smaller than the narrow portion 631b. The third opening 633 is provided at a position overlapping the narrow portion 631b in the radial direction. The third opening 633 has a shape whose outer portion in the radial direction substantially conforms to the outer shape of the plate body 61. The second opening 632 and the third opening 633 have shapes that are symmetric with respect to the straight line L3.
In the radial direction, the shortest distance d1 between the second opening 632 and the third opening 633 and the outer peripheral edge 61b of the plate main body 61 is between the narrow portion 631b and the outer peripheral edge 61b of the plate main body 61. It is shorter than the shortest distance d2.
　第４開口部634は、ボルト穴62aの径方向内側に設けられている。つまり、第４開口部634は、周方向において、ボルト穴62aとオーバーラップする位置に設けられている。第４開口部634は、第１開口部631の中間部631cよりも径方向内側に位置する。
  第５開口部635は、ボルト孔62bの径方向内側に設けられている。つまり、第５開口部635は、周方向において、ボルト穴62bとオーバーラップする位置に設けられている。第５開口部635は、第１開口部631の中間部631cよりも径方向内側に位置する。第４開口部634と第５開口部635は、直線L3に対して対称な形状を有する。
  径方向において、第４開口部634および第５開口部635と中央貫通孔61aとの間の最短距離d3は、幅広部631aと中央貫通孔61aとの間の最短距離d4よりも短い。 The fourth opening 634 is provided radially inside the bolt hole 62a. That is, the fourth opening 634 is provided at a position overlapping the bolt hole 62a in the circumferential direction. The fourth opening 634 is located radially inward of the intermediate portion 631c of the first opening 631.
The fifth opening 635 is provided radially inside the bolt hole 62b. That is, the fifth opening 635 is provided at a position overlapping the bolt hole 62b in the circumferential direction. The fifth opening 635 is located radially inward of the intermediate portion 631c of the first opening 631. The fourth opening 634 and the fifth opening 635 have shapes that are symmetric with respect to the straight line L3.
In the radial direction, the shortest distance d3 between the fourth opening 634 and the fifth opening 635 and the central through-hole 61a is shorter than the shortest distance d4 between the wide portion 631a and the central through-hole 61a.
　図３は、図２の要部拡大図である。
  環状プレート6を構成する各ディスク板6a～6Nは、回転軸線Oに対し直角な断面において、部分的にかしめによって互いに接続された複数のかしめ固定部11を有する。各かしめ固定部11は、各ボルト穴62の径方向外側に２個ずつ設けられている。あるボルト穴62aの径方向外側に設けられた２つのかしめ固定部11,11は、ボルト穴62aの中心と回転軸線Oとを結ぶ軸線L4を対称軸とする線対称な位置に配置されている。つまり、各かしめ固定部11は、ボルト穴62の中心と環状プレート6の中心とを結ぶ軸線L4に対し、周方向にオフセットした位置に配置されている。かしめ固定部11は、回転軸線Oに対し直角な断面において、ワッシャ12bとオーバーラップしている。 FIG. 3 is an enlarged view of a main part of FIG.
Each of the disk plates 6a to 6N constituting the annular plate 6 has a plurality of caulking fixing portions 11 partially connected to each other by caulking in a cross section perpendicular to the rotation axis O. Two each of the caulking fixing portions 11 are provided radially outside of each bolt hole 62. Two caulking fixing portions 11, 11 provided radially outside of a certain bolt hole 62a are arranged at line-symmetric positions with an axis L4 connecting the center of the bolt hole 62a and the rotation axis O as a symmetric axis. . That is, each caulking fixing portion 11 is arranged at a position offset in the circumferential direction with respect to the axis L4 connecting the center of the bolt hole 62 and the center of the annular plate 6. The caulking fixing portion 11 overlaps with the washer 12b in a cross section perpendicular to the rotation axis O.
　次に、実施形態１の作用効果を説明する。
  実施形態１の動力伝達軸用継手1では、環状プレート6の各可撓領域63a～63fに設けられた第１開口部631は、径方向外側の幅広部631aと径方向内側の幅狭部631bとの間に設けられた中間部631cが、第１開口部631の中央部に向かって突出する凸形状を有する。この突出分だけ、中間部631cが第１開口部631の中央部に向かって突出しない従来の環状プレートの第１開口部と比べて、中間部631cの周方向外側における環状プレート6の断面積の減少が抑制されると共に、第１開口部631の外周縁61bの周長が長くなる。このため、第１開口部631および第２開口部632間の領域と、第１開口部631および第３開口部633間の領域のそれぞれにおける環状プレート6の内部応力の増大を抑制できる。また、第２開口部632および第３開口部633は、周方向におけるボルト穴62および幅狭部631b間であって、幅狭部631bと径方向にオーバーラップする位置に設けられている。これにより、第２開口部632および第３開口部633における変形が抑制され、第２開口部632および第３開口部633における破損を抑制できる。この結果、実施形態１の動力伝達軸用継手1にあっては、従来の動力伝達軸用継手と比べて、環状プレート6の各開口部間の領域に生じる応力集中を緩和できる。 Next, the operation and effect of the first embodiment will be described.
In the power transmission shaft coupling 1 according to the first embodiment, the first openings 631 provided in the flexible regions 63a to 63f of the annular plate 6 include a radially outer wide portion 631a and a radially inner narrow portion 631b. An intermediate portion 631c provided between the first opening 631 and the second opening 631 has a convex shape protruding toward the center of the first opening 631. As compared with the first opening of the conventional annular plate in which the intermediate portion 631c does not project toward the center of the first opening 631, the cross-sectional area of the annular plate 6 on the outer side in the circumferential direction of the intermediate portion 631c is reduced by the amount of the protrusion. While the decrease is suppressed, the peripheral length of the outer peripheral edge 61b of the first opening 631 becomes longer. Therefore, it is possible to suppress an increase in internal stress of the annular plate 6 in each of the region between the first opening 631 and the second opening 632 and the region between the first opening 631 and the third opening 633. The second opening 632 and the third opening 633 are provided between the bolt hole 62 and the narrow portion 631b in the circumferential direction and at a position radially overlapping the narrow portion 631b. Thereby, deformation in the second opening 632 and the third opening 633 is suppressed, and breakage in the second opening 632 and the third opening 633 can be suppressed. As a result, in the power transmission shaft joint 1 of the first embodiment, stress concentration occurring in the region between the openings of the annular plate 6 can be reduced as compared with the conventional power transmission shaft joint.
　第１開口部631の幅狭部631bは、径方向の外側に向かって凸となる円弧形状を有する。これにより、幅狭部631bの径方向外側部分の周方向位置における径方向寸法の変化が緩やかとなるため、この部分の応力集中を緩和できる。
  第１開口部631の幅狭部631bは、径方向における最も外側の部分が、回転軸線Oに対し直角な断面における環状プレート6の中心を通り回転軸線Oを中心とするピッチ円Cよりも径方向外側に位置する形状を有する。これにより、幅狭部631bよりも径方向外側の部分の径方向寸法を充分に小さくできるため、この部分における環状プレート6の柔軟性を確保でき、動力伝達軸である変速機の出力軸2およびプロペラシャフトのシャフト本体部3の振動吸収特性の向上を図れる。
  第２開口部632および第３開口部633は、径方向外側の部分が、環状プレート6の外形に沿った形状を有する。これにより、第２開口部632および第３開口部633の径方向外側部分の周方向位置における径方向寸法の変化が緩やかとなるため、この部分の応力集中を緩和できる。 The narrow portion 631b of the first opening 631 has an arc shape that protrudes outward in the radial direction. As a result, the change in the radial dimension at the circumferential position of the radially outer portion of the narrow portion 631b becomes gentle, so that the stress concentration at this portion can be reduced.
The narrow portion 631b of the first opening 631 has a radially outermost portion passing through the center of the annular plate 6 in a cross section perpendicular to the rotation axis O and having a diameter smaller than the pitch circle C centered on the rotation axis O. It has a shape located outside in the direction. Thereby, the radial dimension of the portion radially outside the narrow portion 631b can be made sufficiently small, so that the flexibility of the annular plate 6 in this portion can be ensured, and the output shaft 2 of the transmission, which is the power transmission shaft, and The vibration absorption characteristics of the shaft body 3 of the propeller shaft can be improved.
Each of the second opening 632 and the third opening 633 has a radially outer portion having a shape along the outer shape of the annular plate 6. As a result, the change in the radial dimension at the circumferential position of the radially outer portion of the second opening 632 and the third opening 633 becomes gentle, so that the stress concentration at these portions can be reduced.
　第１開口部631の幅広部631aは、径方向内側に向かって凸となる円弧形状を有する。これにより、幅広部631aの外周縁のうち径方向内側部分の周方向位置における径方向寸法の変化が緩やかとなるため、この部分の応力集中を緩和できる。
  各可撓領域63a～63fは、環状プレート6に設けられた貫通孔である第４開口部634および第５開口部635を備え、第４開口部634と第５開口部635のそれぞれは、周方向において、ボルト穴62のうちの何れかとオーバーラップしており、径方向において、中間部631cよりも内側に設けられている。各可撓領域63a～63fに第４開口部634および第５開口部635が設けられているため、軸方向における環状プレート6の柔軟性が向上し、動力伝達軸である変速機の出力軸2およびプロペラシャフトのシャフト本体部3の振動吸収特性の向上を図れる。 The wide portion 631a of the first opening 631 has an arc shape that protrudes radially inward. As a result, the change in the radial dimension at the circumferential position of the radially inner portion of the outer peripheral edge of the wide portion 631a becomes gentle, so that the stress concentration at this portion can be reduced.
Each of the flexible regions 63a to 63f has a fourth opening 634 and a fifth opening 635, which are through holes provided in the annular plate 6, and each of the fourth opening 634 and the fifth opening 635 has a peripheral portion. In the direction, it overlaps with any of the bolt holes 62, and is provided inward of the intermediate portion 631c in the radial direction. Since the fourth opening 634 and the fifth opening 635 are provided in each of the flexible regions 63a to 63f, the flexibility of the annular plate 6 in the axial direction is improved, and the output shaft 2 of the transmission as the power transmission shaft is provided. In addition, the vibration absorption characteristics of the shaft body 3 of the propeller shaft can be improved.
　第１開口部631の幅広部631aは、径方向における中央貫通孔61aとの間の最短距離d4が、径方向における中央貫通孔61aと第４開口部634および第５開口部635との間の最短距離d3よりも長い。幅広部631aは、比較的開口面積が大きいため、その径方向内側の部分のプレート本体部61の長さ（幅）を充分に確保することにより、幅広部631aおよびその径方向内側部分における剛性が過度に低下するのを抑制できる。
  幅広部631aは、径方向の内側に向かって凸となる円弧形状を有する。これにより、幅広部631aと第４開口部634および第５開口部635との間の部分の周方向位置における径方向寸法の変化が緩やかとなるため、この部分の応力集中を緩和できる。
  幅狭部631bは、径方向におけるプレート本体部61の外周縁61bとの間の最短距離d2が、径方向におけるプレート本体部61の外周縁61bと第２開口部632および第３開口部633との間の最短距離d1よりも長い。幅狭部631bは、第１開口部631全体として、比較的開口面積が大きいため、その径方向外側部分のプレート本体部61の長さ（幅）を十分に確保することにより、幅狭部631bおよびその径方向外側部分における剛性が過度に低下するのを抑制できる。 The wide portion 631a of the first opening 631 is formed such that the shortest distance d4 between the center opening 61a in the radial direction and the center opening 61a in the radial direction is the distance between the fourth opening 634 and the fifth opening 635. It is longer than the shortest distance d3. Since the wide portion 631a has a relatively large opening area, the rigidity of the wide portion 631a and the radially inner portion can be reduced by securing a sufficient length (width) of the plate body portion 61 on the radially inner portion. Excessive reduction can be suppressed.
The wide portion 631a has an arc shape that protrudes inward in the radial direction. As a result, the radial dimension of the portion between the wide portion 631a and the fourth opening 634 and the fifth opening 635 changes gradually at the circumferential position, so that stress concentration at this portion can be reduced.
In the narrow portion 631b, the shortest distance d2 between the outer peripheral edge 61b of the plate main body 61 in the radial direction and the outer peripheral edge 61b of the plate main body 61 in the radial direction, the second opening 632, and the third opening 633 are different from each other. Longer than the shortest distance d1 between. Since the narrow portion 631b has a relatively large opening area as a whole of the first opening 631, by ensuring a sufficient length (width) of the plate body portion 61 in the radially outer portion, the narrow portion 631b is formed. And it can suppress that rigidity in the radial outside part falls too much.
　プレート本体部61は、金属材料で形成され、第１ディスク板6a、第２ディスク板6b、…、第Nディスク板6Nを含み、各ディスク板6a～6Nは、回転軸線Oに対し直角な断面において、部分的なかしめによって互いに接続されたかしめ固定部11を有する。プレート本体部61を複数のディスク板6a～6Nの組み合わせによって構成することにより、プレート本体部61に必要な柔軟性と剛性とを共に確保できる。また、各ディスク板6a～6Nをかしめによって互いに接続し、１つの部材としておくことにより、環状プレートを第１ヨーク4および第２ヨーク5と接続する際の組み立て作業性を向上できる。
  各かしめ固定部11は、回転軸線Oに対し直角な断面において、ワッシャ（ワッシャ12bまたはワッシャ13b）とオーバーラップしている。すなわち、かしめ固定部11にワッシャ（ワッシャ12bまたはワッシャ13b）を介してボルト（ボルト7またはボルト9）とナット（ナット8またはナット10）との締結による軸力をかけることにより、環状プレート6が撓んでかしめ固定部11に応力が発生する際のかしめ固定部11の破損を抑制できる。 The plate main body 61 is formed of a metal material and includes a first disk plate 6a, a second disk plate 6b,..., An N-th disk plate 6N, and each of the disk plates 6a to 6N has a cross section perpendicular to the rotation axis O. Has a caulking fixing portion 11 connected to each other by partial caulking. By configuring the plate body 61 with a combination of the plurality of disk plates 6a to 6N, both the flexibility and rigidity required for the plate body 61 can be secured. Further, by connecting the disk plates 6a to 6N to each other by caulking and forming one member, the workability in assembling when connecting the annular plate to the first yoke 4 and the second yoke 5 can be improved.
Each caulking fixing portion 11 overlaps a washer (washer 12b or washer 13b) in a cross section perpendicular to the rotation axis O. That is, by applying an axial force to the caulking fixing portion 11 by fastening a bolt (bolt 7 or bolt 9) and a nut (nut 8 or nut 10) via a washer (washer 12b or washer 13b), the annular plate 6 is formed. It is possible to suppress the breakage of the caulking fixing portion 11 when the caulking fixing portion 11 is bent and stress is generated.
　かしめ固定部11は、径方向において、ボルト穴62よりも外側に設けられている。これにより、環状プレート6の中心（回転軸線O）およびかしめ固定部11間の距離であるモーメントアームが長くなるため、環状プレート6が撓んだとき、かしめ固定部11に発生する内部応力が抑えられ、かしめ固定部11の耐久性を向上できる。
  かしめ固定部11は、回転軸線Oに対し直角な断面におけるボルト穴62の中心と環状プレート6の中心とを結ぶ軸線L4に対し、周方向において、オフセットした位置に設けられている。ボルト穴62は、円形状を有するため、ボルト穴62の中心と環状プレート6の中心とを結ぶ軸線L4上であってボルト穴62の径方向外側の幅（環状プレート6の外周縁61bとの距離）は短くなる。そこで、かしめ固定部11を、この軸線L4から周方向にオフセットした位置、換言すると、ボルト穴62の径方向外側の幅が比較的大きい部分に設けることにより、かしめ固定部11にかかる応力を広い範囲に分散でき、環状プレート6の耐久性を向上できる。 The caulking fixing portion 11 is provided outside the bolt hole 62 in the radial direction. As a result, the moment arm, which is the distance between the center (rotation axis O) of the annular plate 6 and the caulking fixing portion 11, becomes longer, so that when the annular plate 6 bends, the internal stress generated in the caulking fixing portion 11 is suppressed. Therefore, the durability of the caulking fixing portion 11 can be improved.
The caulking fixing portion 11 is provided at a position offset in the circumferential direction with respect to an axis L4 connecting the center of the bolt hole 62 and the center of the annular plate 6 in a cross section perpendicular to the rotation axis O. Since the bolt hole 62 has a circular shape, the width on the axis L4 connecting the center of the bolt hole 62 and the center of the annular plate 6 and the radially outer width of the bolt hole 62 (with respect to the outer peripheral edge 61b of the annular plate 6). Distance) becomes shorter. Therefore, by providing the caulking fixing portion 11 at a position offset in the circumferential direction from the axis L4, in other words, by providing the portion outside the bolt hole 62 in which the width in the radial direction is relatively large, the stress applied to the caulking fixing portion 11 is widened. It can be dispersed in the range, and the durability of the annular plate 6 can be improved.
　〔他の実施形態〕
  以上、本発明を実施するための実施形態を説明したが、本発明の具体的な構成は実施形態の構成に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更等があっても本発明に含まれる。
  ディスク板は、２枚以上であればよい。
  ディスク部材接続部は、４箇所以上であればよい。
  可撓部は、３箇所以上であればよい。
  かしめ固定部は、ディスク部材全体で１箇所以上であればよい。 [Other embodiments]
As described above, the embodiment for carrying out the present invention has been described. However, the specific configuration of the present invention is not limited to the configuration of the embodiment, and there are design changes and the like within a range not departing from the gist of the invention. Are also included in the present invention.
The number of disk plates may be two or more.
The number of disk member connection portions may be four or more.
The number of the flexible portions may be three or more.
The caulking fixing portion may be one or more in the entire disk member.
　以上説明した実施形態から把握し得る技術的思想について、以下に記載する。
  動力伝達軸用継手は、その一つの態様において、車両の駆動源と駆動輪の間に設けられた第１軸と第２軸の間に設けられる動力伝達軸用継手において、第１ヨークであって、第１ヨーク本体部と、第１ヨーク第１接続部と、第１ヨーク第２接続部を備え、前記第１ヨーク本体部は、前記第１軸と接続可能であり、前記第１ヨーク第１接続部は、前記第１軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、前記第１ヨーク第２接続部は、前記第１軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられている、前記第１ヨークと、第２ヨークであって、第２ヨーク本体部と、第２ヨーク第１接続部と、第２ヨーク第２接続部を備え、前記第２ヨーク本体部は、前記第２軸と接続可能であり、前記第２ヨーク第１接続部は、前記第２軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、前記第２ヨーク第２接続部は、前記第２軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられている、前記第２ヨークと、ディスク部材であって、ディスク部材本体部と、ディスク部材接続部と、可撓部を備え、前記ディスク部材本体部は、可撓性材料で形成され、板形状を有し、前記ディスク部材接続部は、前記ディスク部材本体部に設けられ、ディスク部材第１ヨーク第１接続部と、ディスク部材第１ヨーク第２接続部と、ディスク部材第２ヨーク第１接続部と、ディスク部材第２ヨーク第２接続部を含み、前記可撓部は、前記ディスク部材本体部に設けられ、第１可撓領域と、第２可撓領域と、第３可撓領域を含み、前記第１軸の回転軸線の周方向において、前記ディスク部材第１ヨーク第１接続部、前記第１可撓領域、前記ディスク部材第２ヨーク第１接続部、前記第２可撓領域、前記ディスク部材第１ヨーク第２接続部、前記第３可撓領域、前記ディスク部材第２ヨーク第２接続部の順に配置されており、前記ディスク部材第１ヨーク第１接続部、前記ディスク部材第１ヨーク第２接続部、前記ディスク部材第２ヨーク第１接続部、前記ディスク部材第２ヨーク第２接続部のそれぞれは、前記第１ヨーク第１接続部、前記第１ヨーク第２接続部、前記第２ヨーク第１接続部、前記第２ヨーク第２接続部のそれぞれと接続されており、前記第１可撓領域、前記第２可撓領域、前記第３可撓領域のそれぞれは、前記ディスク部材本体部に設けられた貫通孔である第１開口部と、第２開口部と、第３開口部を備え、前記第１開口部は、第１開口部幅広部と、第１開口部幅狭部と、第１開口部中間部を備え、前記第１開口部幅広部は、前記第１軸の回転軸線に関する周方向の幅が、前記第１開口部幅狭部および前記第１開口部中間部よりも大きく、前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向において前記第１開口部幅広部の外側に設けられており、前記第１開口部中間部は、前記第１軸の回転軸線に関する径方向において前記第１開口部幅広部と前記第１開口部幅狭部の間に設けられ、前記第１軸の回転軸線に関する周方向における前記第１開口部の中央部に向かって突出する凸形状を有し、前記第２開口部と前記第３開口部のそれぞれは、前記第１軸の回転軸線に関する周方向において、前記ディスク部材接続部のうち最も近いものと前記第１開口部幅狭部の間であって、前記第１軸の回転軸線に関する径方向において、前記第１開口部幅狭部とオーバーラップする位置に設けられている、前記ディスク部材と、を有する。 The technical ideas that can be grasped from the embodiment described above will be described below.
In one aspect, the power transmission shaft coupling is a first yoke in a power transmission shaft coupling provided between a first shaft and a second shaft provided between a driving source of a vehicle and a driving wheel. A first yoke main body, a first yoke first connection, and a first yoke second connection, wherein the first yoke main body is connectable to the first shaft. The first connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the first shaft, and the first yoke second connection portion is provided with the first shaft with respect to the first shaft. A first yoke and a second yoke, which are provided radially outward with respect to the rotation axis of the second yoke, a second yoke main body, a second yoke first connection portion, and a second yoke second connection portion. The second yoke main body is connectable to the second shaft, and the second yoke first contact The portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the second shaft, and the second yoke second connection portion is provided with a rotation axis of the first shaft with respect to the second shaft. A second yoke and a disk member provided on a radially outer side of the disk member, the disk member including a disk member main body, a disk member connecting portion, and a flexible portion; The disk member connecting portion is formed of a conductive material and has a plate shape, and the disk member connecting portion is provided on the disk member main body portion, and the disk member first yoke first connecting portion, the disk member first yoke second connecting portion, A disk member second yoke first connection portion; and a disk member second yoke second connection portion, wherein the flexible portion is provided in the disk member main body portion and includes a first flexible region and a second flexible region. And a third flexible region, wherein the rotation of the first axis In the circumferential direction of the axis, the disk member first yoke first connection portion, the first flexible region, the disk member second yoke first connection portion, the second flexible region, the disk member first yoke second A connecting portion, the third flexible region, and the disc member second yoke second connecting portion are arranged in this order, the disc member first yoke first connecting portion, the disc member first yoke second connecting portion, The disc member second yoke first connection portion and the disc member second yoke second connection portion are respectively the first yoke first connection portion, the first yoke second connection portion, and the second yoke first connection portion. , The second yoke and the second connecting portion are connected to each other, and each of the first flexible region, the second flexible region, and the third flexible region is provided on the disk member main body. A first opening which is a through hole; , A second opening, and a third opening, wherein the first opening comprises a first opening wide part, a first opening narrow part, and a first opening middle part, The wide opening portion has a circumferential width with respect to the rotation axis of the first shaft that is larger than the first narrow opening portion and the first middle opening portion, and the first narrow opening portion includes: The first opening is provided outside the wide portion of the first opening in the radial direction with respect to the rotation axis of the first shaft, and the intermediate portion of the first opening is provided with the first opening in the radial direction with respect to the rotation axis of the first shaft. A convex portion provided between the wide portion and the narrow portion of the first opening, and protruding toward a central portion of the first opening in a circumferential direction about a rotation axis of the first shaft; Each of the second opening and the third opening is provided in the circumferential direction with respect to the rotation axis of the first shaft. Between the closest one of the screw member connecting portions and the first opening narrow portion, in a position overlapping with the first opening narrow portion in the radial direction with respect to the rotation axis of the first shaft; And the disk member provided.
　より好ましい態様では、上記態様において、前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向の外側に向かって凸となる円弧形状を有する。
  別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材接続部は、前記ディスク部材本体部に設けられた貫通孔であって、前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向における最も外側の部分が、前記第１軸の回転軸線に対し直角な断面における前記ディスク部材接続部の中心を通り前記第１軸の回転軸線を中心とするピッチ円よりも前記径方向の外側に位置する形状を有する。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材は、前記ディスク部材本体部の外形が、前記第１軸線の回転軸線を中心とする円形状を有し、前記第２開口部および前記第３開口部は、前記第１軸の回転軸線に関する径方向の外側の部分が、前記ディスク部材本体部の外形に沿った形状を有する。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向の内側に向かって凸となる円弧形状を有する。 In a more preferred aspect, in the above aspect, the first opening narrow portion has an arc shape that protrudes radially outward with respect to the rotation axis of the first shaft.
In another preferred aspect, in any one of the above aspects, the disc member connecting part is a through hole provided in the disc member main body part, and the first opening narrow part is the first shaft narrow part. The outermost portion in the radial direction with respect to the rotation axis passes through the center of the disk member connection portion in a cross section perpendicular to the rotation axis of the first shaft, and is larger than the pitch circle centered on the rotation axis of the first shaft. It has a shape located on the outside in the radial direction.
In still another preferred aspect, in any one of the above aspects, in the disk member, an outer shape of the disk member body has a circular shape centered on a rotation axis of the first axis, and the second opening The third opening has a shape in which a radially outer portion with respect to the rotation axis of the first shaft has a shape along the outer shape of the disk member main body.
In still another preferred aspect, in any of the above aspects, the first opening wide portion has an arc shape that protrudes radially inward with respect to the rotation axis of the first shaft.
　さらに別の好ましい態様では、上記態様のいずれかにおいて、前記第１可撓領域、前記第２可撓領域、前記第３可撓領域のそれぞれは、前記ディスク部材本体部に設けられた貫通孔である第４開口部と第５開口部を備え、前記第４開口部と前記第５開口部のそれぞれは、前記第１軸の回転軸線に関する周方向において、前記ディスク部材接続部のうちの何れかとオーバーラップしており、前記第１軸の回転軸線に関する径方向において、前記第１開口部中間部よりも内側に設けられている。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材は、中央貫通孔を備え、前記中央貫通孔は、前記ディスク部材本体部に設けられ、前記第１軸の回転軸線を中心とした円形状を有する貫通孔であって、前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向における前記中央貫通孔との間の最短距離が、前記第１軸の回転軸線に関する径方向における前記中央貫通孔と前記第４開口部または前記第５開口部との間の最短距離よりも長い。 In still another preferred aspect, in any one of the above aspects, each of the first flexible region, the second flexible region, and the third flexible region is a through hole provided in the disk member main body. A fourth opening and a fifth opening are provided, and each of the fourth opening and the fifth opening is connected to one of the disk member connecting portions in a circumferential direction with respect to the rotation axis of the first shaft. It overlaps and is provided inside the first opening intermediate portion in the radial direction with respect to the rotation axis of the first shaft.
In still another preferred aspect, in any one of the above aspects, the disc member has a central through-hole, and the central through-hole is provided in the disk member main body, and is centered on a rotation axis of the first shaft. Wherein the first opening wide portion has a shortest distance from the central through-hole in a radial direction with respect to a rotation axis of the first shaft, and the first opening wide portion has a rotation axis of the first shaft. The length is longer than the shortest distance between the central through hole and the fourth opening or the fifth opening in the radial direction.
　さらに別の好ましい態様では、上記態様のいずれかにおいて、前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向の内側に向かって凸となる円弧形状を有する。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材は、前記ディスク部材本体部の外形が、前記第１軸の回転軸線を中心とする円形状を有し、前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向における前記ディスク部材本体部の外周縁との間の最短距離が、前記第１軸の回転軸線に関する径方向における前記ディスク部材本体部の外周縁と前記第２開口部または前記第３開口部との間の最短距離よりも長い。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材は、金属材料で形成され、第１ディスク板と、第２ディスク板を含み、前記第１ディスク板と前記第２ディスク板は、前記第１軸の回転軸線に対し直角な断面において、部分的にかしめによって互いに接続されたかしめ固定部を有する。 In still another preferred aspect, in any of the above aspects, the first opening wide portion has an arc shape that protrudes radially inward with respect to the rotation axis of the first shaft.
In still another preferred aspect, in any one of the above aspects, in the disk member, an outer shape of the disk member main body has a circular shape centered on a rotation axis of the first shaft, and the first opening portion The narrow portion has a shortest distance between the outer peripheral edge of the disk member main body in the radial direction with respect to the rotation axis of the first shaft and the outermost portion of the narrow portion outside the disk member main body in the radial direction with respect to the rotation axis of the first shaft. It is longer than the shortest distance between the peripheral edge and the second opening or the third opening.
In still another preferred aspect, in any one of the above aspects, the disk member is formed of a metal material, and includes a first disk plate and a second disk plate, wherein the first disk plate and the second disk plate are A crimp fixing portion partially connected to each other by caulking in a section perpendicular to the rotation axis of the first shaft.
　さらに別の好ましい態様では、上記態様のいずれかにおいて、第１ボルト、第２ボルト、第３ボルト、第４ボルト、第１ナット、第２ナット、第３ナット、第４ナット、第１座金、第２座金、第３座金、第４座金を有し、前記ディスク部材接続部は、前記ディスク部材本体部に設けられた貫通孔であって、前記第１ボルトと前記第１ナットは、前記第１ヨーク第１接続部と前記ディスク部材第１ヨーク第１接続部とを締結しており、前記第１座金は、前記第１ナットと前記ディスク部材の間に設けられており、前記第２ボルトと前記第２ナットは、前記第１ヨーク第２接続部と前記ディスク部材第１ヨーク第２接続部とを締結しており、前記第２座金は、前記第２ナットと前記ディスク部材の間に設けられており、前記第３ボルトと前記第３ナットは、前記第２ヨーク第１接続部と前記ディスク部材第２ヨーク第１接続部とを締結しており、前記第３座金は、前記第３ナットと前記ディスク部材の間に設けられており、前記第４ボルトと前記第４ナットは、前記第２ヨーク第２接続部と前記ディスク部材第２ヨーク第２接続部とを締結しており、前記第４座金は、前記第４ナットと前記ディスク部材の間に設けられており、前記かしめ固定部は、前記第１軸の回転軸線に対し直角な断面において、前記第１座金、前記第２座金、前記第３座金、または前記第４座金とオーバーラップしている。 In still another preferred aspect, in any of the above aspects, the first bolt, the second bolt, the third bolt, the fourth bolt, the first nut, the second nut, the third nut, the fourth nut, the first washer, A second washer, a third washer, and a fourth washer, wherein the disc member connecting portion is a through hole provided in the disc member main body, and wherein the first bolt and the first nut are the A first yoke first connection portion and the disc member first yoke first connection portion are fastened, the first washer is provided between the first nut and the disc member, and the second bolt And the second nut fasten the first yoke second connection portion and the disc member first yoke second connection portion, and the second washer is provided between the second nut and the disc member. And the third bolt and the third bolt The nut fastens the second yoke first connection portion and the disk member second yoke first connection portion, and the third washer is provided between the third nut and the disk member. The fourth bolt and the fourth nut fasten the second yoke second connection portion and the disk member second yoke second connection portion, and the fourth washer is connected to the fourth nut and the fourth nut. The caulking fixing portion is provided between the disk members, and has a cross section perpendicular to the rotation axis of the first shaft, the first washer, the second washer, the third washer, or the fourth washer. And overlap.
　さらに別の好ましい態様では、上記態様のいずれかにおいて、前記かしめ固定部は、前記第１軸の回転軸線の径方向において、前記ディスク部材接続部よりも外側に設けられている。
  さらに別の好ましい態様では、上記態様のいずれかにおいて、前記ディスク部材接続部は、前記ディスク部材本体部に設けられ、前記第１軸の回転軸線に対し直角な断面において円形状を有する貫通孔であって、前記かしめ固定部は、前記第１軸の回転軸線に対し直角な断面における前記ディスク部材接続部の中心と前記ディスク部材の中心とを結ぶ軸線に対し、前記第１軸の回転軸線に関する周方向において、オフセットした位置に設けられている。 In still another preferred aspect, in any of the above aspects, the caulking fixing portion is provided outside the disk member connection portion in a radial direction of a rotation axis of the first shaft.
In still another preferred aspect, in any one of the above aspects, the disk member connecting portion is a through hole provided in the disk member main body and having a circular shape in a cross section perpendicular to the rotation axis of the first shaft. The caulking fixing portion is related to a rotation axis of the first shaft with respect to an axis connecting the center of the disk member connection portion and the center of the disk member in a cross section perpendicular to the rotation axis of the first shaft. It is provided at an offset position in the circumferential direction.
　尚、本発明は上記した実施形態に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施形態は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施形態の構成の一部を他の実施形態の構成に置き換えることが可能であり、また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。また、各実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。 Note that the present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described above. In addition, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of one embodiment can be added to the configuration of another embodiment. Further, for a part of the configuration of each embodiment, it is possible to add, delete, or replace another configuration.
　本願は、２０１８年９月７日付出願の日本国特許出願第２０１８－１６７５１０号に基づく優先権を主張する。２０１８年９月７日付出願の日本国特許出願第２０１８－１６７５１０号の明細書、特許請求の範囲、図面、及び要約書を含む全開示内容は、参照により本願に全体として組み込まれる。 This application claims the priority based on Japanese Patent Application No. 2018-167510 filed on Sep. 7, 2018. The entire disclosure of Japanese Patent Application No. 2018-167510 filed on Sep. 7, 2018, including the specification, claims, drawings, and abstract, is incorporated herein by reference in its entirety.
1　動力伝達軸用継手2　出力軸（第１軸）3　シャフト本体部（第２軸）4　第１ヨーク41　第１ヨーク本体部42　アーム部（第１ヨーク第１接続部、第１ヨーク第２接続部）5　第２ヨーク51　第２ヨーク本体部52　アーム部（第２ヨーク第１接続部、第２ヨーク第２接続部、第２ヨーク第３接続部）6　環状プレート（ディスク部材）61　プレート本体部（ディスク部材本体部）62　ボルト穴（ディスク部材第１ヨーク第１接続部、ディスク部材第１ヨーク第２接続部、ディスク部材第２ヨーク第１接続部、ディスク部材第２ヨーク第２接続部）63　可撓部63a～63c　可撓領域（第１可撓領域、第２可撓領域、第３可撓領域）631　第１開口部631a　幅広部（第１開口部幅広部）631b　幅狭部（第１開口部幅狭部）631c　中間部（第１開口部中間部）632　第２開口部633　第３開口部634　第４開口部635　第５開口部O　回転軸線 1 Joint for power transmission shaft 2 Output shaft (first shaft) 3 Shaft main body (second shaft) 4 First yoke 41 First yoke main body 42 Arm (first yoke first connection part, first yoke second part) Connection part) 5 {second yoke 51} second yoke main body part 52 {arm part (second yoke first connection part, second yoke second connection part, second yoke third connection part) 6} annular plate (disk member) 61} plate Body (disk member body) 62 部 bolt hole (disk member first yoke first connection, disk member first yoke second connection, disk member second yoke first connection, disk member second yoke second connection Part) 63 {flexible parts 63a to 63c} flexible area (first flexible area, second flexible area, third flexible area) 631 {first opening 631a} wide part (first opening wide part) 631b} narrow Part (first opening narrow part) 631c {intermediate part (first opening intermediate part) 632} Opening 633 third opening 634 fourth opening 635 fifth opening O rotational axis

Claims (13)

  1. 　動力伝達軸用継手であって、
    　前記動力伝達軸用継手は、車両の駆動源と駆動輪の間に設けられた第１軸と第２軸との間に設けられており、
    　前記動力伝達軸用継手は、第１ヨークと、第２ヨークと、ディスク部材とを備えており、
    　前記第１ヨークは、第１ヨーク本体部と、第１ヨーク第１接続部と、第１ヨーク第２接続部を備え、
    　前記第１ヨーク本体部は、前記第１軸と接続可能であり、
    　前記第１ヨーク第１接続部は、前記第１軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、
    　前記第１ヨーク第２接続部は、前記第１軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、
    　前記第２ヨークは、第２ヨーク本体部と、第２ヨーク第１接続部と、第２ヨーク第２接続部を備え、
    　前記第２ヨーク本体部は、前記第２軸と接続可能であり、
    　前記第２ヨーク第１接続部は、前記第２軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、
    　前記第２ヨーク第２接続部は、前記第２軸に対し前記第１軸の回転軸線に関する径方向の外側に設けられており、
    　前記ディスク部材は、ディスク部材本体部と、ディスク部材接続部と、可撓部を備え、
    　前記ディスク部材本体部は、可撓性材料で形成され、板形状を有し、
    　前記ディスク部材接続部は、前記ディスク部材本体部に設けられ、ディスク部材第１ヨーク第１接続部と、ディスク部材第１ヨーク第２接続部と、ディスク部材第２ヨーク第１接続部と、ディスク部材第２ヨーク第２接続部を含み、
    　前記可撓部は、前記ディスク部材本体部に設けられ、第１可撓領域と、第２可撓領域と、第３可撓領域を含み、
    　前記第１軸の回転軸線の周方向において、前記ディスク部材第１ヨーク第１接続部、前記第１可撓領域、前記ディスク部材第２ヨーク第１接続部、前記第２可撓領域、前記ディスク部材第１ヨーク第２接続部、前記第３可撓領域、前記ディスク部材第２ヨーク第２接続部の順に配置されており、
    　前記ディスク部材第１ヨーク第１接続部、前記ディスク部材第１ヨーク第２接続部、前記ディスク部材第２ヨーク第１接続部、前記ディスク部材第２ヨーク第２接続部のそれぞれは、前記第１ヨーク第１接続部、前記第１ヨーク第２接続部、前記第２ヨーク第１接続部、前記第２ヨーク第２接続部のそれぞれと接続されており、
    　前記第１可撓領域、前記第２可撓領域、前記第３可撓領域のそれぞれは、前記ディスク部材本体部に設けられた貫通孔である第１開口部と、第２開口部と、第３開口部を備え、
    　前記第１開口部は、第１開口部幅広部と、第１開口部幅狭部と、第１開口部中間部を備え、
    　前記第１開口部幅広部は、前記第１軸の回転軸線に関する周方向の幅が、前記第１開口部幅狭部および前記第１開口部中間部よりも大きく、
    　前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向において前記第１開口部幅広部の外側に設けられており、
    　前記第１開口部中間部は、前記第１軸の回転軸線に関する径方向において前記第１開口部幅広部と前記第１開口部幅狭部との間に設けられ、前記第１軸の回転軸線に関する周方向における前記第１開口部の中央部に向かって突出する凸形状を有し、
    　前記第２開口部と前記第３開口部のそれぞれは、前記第１軸の回転軸線に関する周方向において、前記ディスク部材接続部のうち最も近いものと前記第１開口部幅狭部の間であって、前記第１軸の回転軸線に関する径方向において、前記第１開口部幅狭部とオーバーラップする位置に設けられている、
    動力伝達軸用継手。     A power transmission shaft coupling,
    The power transmission shaft coupling is provided between a first shaft and a second shaft provided between a drive source of a vehicle and drive wheels,
    The power transmission shaft coupling includes a first yoke, a second yoke, and a disk member,
    The first yoke includes a first yoke body, a first yoke first connection, and a first yoke second connection.
    The first yoke main body is connectable to the first shaft,
    The first yoke first connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the first shaft,
    The first yoke second connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the first shaft,
    The second yoke includes a second yoke body, a second yoke first connection, and a second yoke second connection.
    The second yoke body is connectable to the second shaft,
    The second yoke first connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the second shaft,
    The second yoke second connection portion is provided radially outward with respect to the rotation axis of the first shaft with respect to the second shaft,
    The disk member includes a disk member main body portion, a disk member connection portion, and a flexible portion,
    The disk member main body is formed of a flexible material, has a plate shape,
    The disk member connecting portion is provided on the disk member main body portion, and includes a disk member first yoke first connecting portion, a disk member first yoke second connecting portion, a disk member second yoke first connecting portion, and a disk. A member second yoke second connection portion,
    The flexible portion is provided on the disk member main body, and includes a first flexible region, a second flexible region, and a third flexible region,
    The disk member first yoke first connection portion, the first flexible region, the disk member second yoke first connection portion, the second flexible region, the disk in a circumferential direction of the rotation axis of the first shaft. A member first yoke second connection portion, the third flexible region, and the disk member second yoke second connection portion are arranged in this order;
    The disk member first yoke first connection portion, the disk member first yoke second connection portion, the disk member second yoke first connection portion, and the disk member second yoke second connection portion each include the first member. A yoke first connection portion, the first yoke second connection portion, the second yoke first connection portion, and the second yoke second connection portion, which are connected to each other;
    Each of the first flexible region, the second flexible region, and the third flexible region has a first opening that is a through hole provided in the disc member main body, a second opening, With three openings,
    The first opening includes a first opening wide part, a first opening narrow part, and a first opening middle part,
    The first opening wide portion has a circumferential width with respect to the rotation axis of the first shaft larger than the first opening narrow portion and the first opening middle portion,
    The first opening narrow portion is provided outside the first opening wide portion in a radial direction with respect to a rotation axis of the first shaft,
    The first opening intermediate portion is provided between the first opening wide portion and the first opening narrow portion in a radial direction with respect to the rotation axis of the first shaft, and the rotation axis of the first shaft. Having a convex shape protruding toward the center of the first opening in the circumferential direction with respect to
    Each of the second opening and the third opening is located between the closest one of the disk member connection parts and the first opening narrow part in the circumferential direction about the rotation axis of the first shaft. The first opening is provided at a position overlapping with the narrow portion of the first opening in the radial direction with respect to the rotation axis of the first shaft;
    Power transmission shaft coupling.
  2. 　請求項１に記載の動力伝達軸用継手において、
    　前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向の外側に向かって凸となる円弧形状を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    The power transmission shaft coupling, wherein the first opening narrow portion has an arcuate shape protruding radially outward with respect to a rotation axis of the first shaft.
  3. 　請求項１に記載の動力伝達軸用継手において、
    　前記ディスク部材接続部は、前記ディスク部材本体部に設けられた貫通孔であり、
    　前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向における最も外側の部分が、前記第１軸の回転軸線に対し直角な断面における前記ディスク部材接続部の中心を通り前記第１軸の回転軸線を中心とするピッチ円よりも前記径方向の外側に位置する形状を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    The disk member connection portion is a through hole provided in the disk member body,
    In the first opening narrow portion, an outermost portion in a radial direction with respect to the rotation axis of the first shaft passes through the center of the disk member connection portion in a cross section perpendicular to the rotation axis of the first shaft. A power transmission shaft joint having a shape located radially outside the pitch circle centered on the rotation axis of the first shaft.
  4. 　請求項１に記載の動力伝達軸用継手において、
    　前記ディスク部材は、前記ディスク部材本体部の外形が、前記第１軸線の回転軸線を中心とする円形状を有し、
    　前記第２開口部および前記第３開口部は、前記第１軸の回転軸線に関する径方向の外側の部分が、前記ディスク部材本体部の外形に沿った形状を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    In the disk member, an outer shape of the disk member main body has a circular shape centered on a rotation axis of the first axis,
    The power transmission shaft joint, wherein the second opening and the third opening have a radially outer portion with respect to the rotation axis of the first shaft, the shape being in conformity with the outer shape of the disk member body.
  5. 　請求項１に記載の動力伝達軸用継手において、
    　前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向の内側に向かって凸となる円弧形状を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    The power transmission shaft coupling, wherein the first wide opening portion has an arcuate shape that protrudes radially inward with respect to a rotation axis of the first shaft.
  6. 　請求項１に記載の動力伝達軸用継手において、
    　前記第１可撓領域、前記第２可撓領域、前記第３可撓領域のそれぞれは、前記ディスク部材本体部に設けられた貫通孔である第４開口部と第５開口部を備え、
    　前記第４開口部と前記第５開口部のそれぞれは、前記第１軸の回転軸線に関する周方向において、前記ディスク部材接続部のうちの何れかとオーバーラップしており、前記第１軸の回転軸線に関する径方向において、前記第１開口部中間部よりも内側に設けられている動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    Each of the first flexible region, the second flexible region, and the third flexible region includes a fourth opening and a fifth opening that are through holes provided in the disk member main body,
    Each of the fourth opening and the fifth opening overlaps with any one of the disk member connecting portions in a circumferential direction about the rotation axis of the first shaft, and the rotation axis of the first shaft. A power transmission shaft coupling provided radially inside the first opening intermediate portion in the radial direction.
  7. 　請求項６に記載の動力伝達軸用継手において、
    　前記ディスク部材は、中央貫通孔を備え、
    　前記中央貫通孔は、前記ディスク部材本体部に設けられ、前記第１軸の回転軸線を中心とした円形状を有する貫通孔であり、
    　前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向における前記中央貫通孔との間の最短距離が、前記第１軸の回転軸線に関する径方向における前記中央貫通孔と前記第４開口部または前記第５開口部との間の最短距離よりも長い動力伝達軸用継手。     The joint for a power transmission shaft according to claim 6,
    The disk member has a central through hole,
    The central through hole is a through hole provided in the disk member main body and having a circular shape centered on the rotation axis of the first shaft.
    The first opening wide portion has a shortest distance between the central through hole in the radial direction with respect to the rotation axis of the first shaft and the central through hole in the radial direction with respect to the rotation axis of the first shaft. A power transmission shaft coupling longer than the shortest distance between the fourth opening and the fifth opening.
  8. 　請求項６に記載の動力伝達軸用継手において、
    　前記第１開口部幅広部は、前記第１軸の回転軸線に関する径方向の内側に向かって凸となる円弧形状を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 6,
    The power transmission shaft coupling, wherein the first wide opening portion has an arcuate shape that protrudes radially inward with respect to a rotation axis of the first shaft.
  9. 　請求項１に記載の動力伝達軸用継手において、
    　前記ディスク部材は、前記ディスク部材本体部の外形が、前記第１軸の回転軸線を中心とする円形状を有し、
    　前記第１開口部幅狭部は、前記第１軸の回転軸線に関する径方向における前記ディスク部材本体部の外周縁との間の最短距離が、前記第１軸の回転軸線に関する径方向における前記ディスク部材本体部の外周縁と前記第２開口部または前記第３開口部との間の最短距離よりも長い動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    In the disk member, an outer shape of the disk member body has a circular shape centered on a rotation axis of the first shaft,
    The first opening narrow portion is configured such that the shortest distance between the outer peripheral edge of the disk member main body in the radial direction with respect to the rotation axis of the first shaft is equal to the disk in the radial direction with respect to the rotation axis of the first shaft. A power transmission shaft joint longer than a shortest distance between an outer peripheral edge of a member main body and the second opening or the third opening.
  10. 　請求項１に記載の動力伝達軸用継手において、
    　前記ディスク部材は、金属材料で形成され、第１ディスク板と、第２ディスク板を含み、
    　前記第１ディスク板と前記第２ディスク板は、前記第１軸の回転軸線に対し直角な断面において、部分的にかしめによって互いに接続されたかしめ固定部を有する動力伝達軸用継手。     The joint for a power transmission shaft according to claim 1,
    The disk member is formed of a metal material and includes a first disk plate and a second disk plate,
    A joint for a power transmission shaft, wherein the first disk plate and the second disk plate have a caulking fixing portion partially connected to each other by caulking in a cross section perpendicular to the rotation axis of the first shaft.
  11. 　請求項１０に記載の動力伝達軸用継手において、
    　前記動力伝達軸用継手は、第１ボルト、第２ボルト、第３ボルト、第４ボルト、第１ナット、第２ナット、第３ナット、第４ナット、第１座金、第２座金、第３座金、第４座金を有し、
    　前記ディスク部材接続部は、前記ディスク部材本体部に設けられた貫通孔であり、
    　前記第１ボルトと前記第１ナットは、前記第１ヨーク第１接続部と前記ディスク部材第１ヨーク第１接続部とを締結しており、
    　前記第１座金は、前記第１ナットと前記ディスク部材の間に設けられており、
    　前記第２ボルトと前記第２ナットは、前記第１ヨーク第２接続部と前記ディスク部材第１ヨーク第２接続部とを締結しており、
    　前記第２座金は、前記第２ナットと前記ディスク部材の間に設けられており、
    　前記第３ボルトと前記第３ナットは、前記第２ヨーク第１接続部と前記ディスク部材第２ヨーク第１接続部とを締結しており、
    　前記第３座金は、前記第３ナットと前記ディスク部材の間に設けられており、
    　前記第４ボルトと前記第４ナットは、前記第２ヨーク第２接続部と前記ディスク部材第２ヨーク第２接続部とを締結しており、
    　前記第４座金は、前記第４ナットと前記ディスク部材の間に設けられており、
    　前記かしめ固定部は、前記第１軸の回転軸線に対し直角な断面において、前記第１座金、前記第２座金、前記第３座金、または前記第４座金とオーバーラップしている動力伝達軸用継手。     The joint for a power transmission shaft according to claim 10,
    The power transmission shaft coupling includes a first bolt, a second bolt, a third bolt, a fourth bolt, a first nut, a second nut, a third nut, a fourth nut, a first washer, a second washer, and a third bolt. Has a washer and a fourth washer,
    The disk member connection portion is a through hole provided in the disk member body,
    The first bolt and the first nut fasten the first yoke first connection portion and the disc member first yoke first connection portion,
    The first washer is provided between the first nut and the disk member,
    The second bolt and the second nut fasten the first yoke second connection portion and the disc member first yoke second connection portion,
    The second washer is provided between the second nut and the disk member,
    The third bolt and the third nut fasten the second yoke first connection portion and the disk member second yoke first connection portion,
    The third washer is provided between the third nut and the disk member,
    The fourth bolt and the fourth nut fasten the second yoke second connection portion and the disc member second yoke second connection portion,
    The fourth washer is provided between the fourth nut and the disk member,
    The caulking fixing portion is for a power transmission shaft overlapping with the first washer, the second washer, the third washer, or the fourth washer in a cross section perpendicular to the rotation axis of the first shaft. Fittings.
  12. 　請求項１０に記載の動力伝達軸用継手において、
    　前記かしめ固定部は、前記第１軸の回転軸線の径方向において、前記ディスク部材接続部よりも外側に設けられている動力伝達軸用継手。     The joint for a power transmission shaft according to claim 10,
    The power transmission shaft coupling, wherein the caulking fixing portion is provided outside the disc member connection portion in a radial direction of a rotation axis of the first shaft.
  13. 　請求項１０に記載の動力伝達軸用継手において、
    　前記ディスク部材接続部は、前記ディスク部材本体部に設けられ、前記第１軸の回転軸線に対し直角な断面において円形状を有する貫通孔であり、
    　前記かしめ固定部は、前記第１軸の回転軸線に対し直角な断面における前記ディスク部材接続部の中心と前記ディスク部材の中心とを結ぶ軸線に対し、前記第１軸の回転軸線に関する周方向において、オフセットした位置に設けられている動力伝達軸用継手。     The joint for a power transmission shaft according to claim 10,
    The disk member connecting portion is a through hole provided in the disk member main body portion and having a circular shape in a cross section perpendicular to the rotation axis of the first shaft,
    The caulking fixing portion is disposed in a circumferential direction about a rotation axis of the first shaft with respect to an axis connecting a center of the disk member connection portion and a center of the disk member in a cross section perpendicular to the rotation axis of the first shaft. , A power transmission shaft coupling provided at an offset position.
PCT/JP2019/033237 2018-09-07 2019-08-26 Joint for power transmission shaft WO2020050078A1 (en)

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JP2018167510A JP2020041556A (en) 2018-09-07 2018-09-07 Coupling for power transmission shaft
JP2018-167510 2018-09-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048149A (en) * 2000-08-02 2002-02-15 Unisia Jecs Corp Shaft coupling for vehicle
JP2002168265A (en) * 2000-11-28 2002-06-14 Unisia Jecs Corp Shaft coupling for vehicle
JP2003049863A (en) * 2001-08-07 2003-02-21 Hitachi Unisia Automotive Ltd Shaft coupling for vehicle
US20090098944A1 (en) * 2007-10-13 2009-04-16 Zf Friedrichshafen Ag Disk for the transmission of a torque in a torque transmission device of a motor vehicle
DE102008044052A1 (en) * 2008-11-25 2010-05-27 Zf Friedrichshafen Ag Clutch element i.e. diaphragm, for transmitting torque of internal-combustion engine to e.g. automatic gearbox of motor vehicle, has outer mounting holes whose center is arranged on lines, where element has constant material thickness
DE102014221278A1 (en) * 2013-10-30 2015-04-30 Schaeffler Technologies Gmbh & Co. Kg drive arrangement
WO2017033571A1 (en) * 2015-08-25 2017-03-02 日立オートモティブシステムズ株式会社 Power transmission device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048149A (en) * 2000-08-02 2002-02-15 Unisia Jecs Corp Shaft coupling for vehicle
JP2002168265A (en) * 2000-11-28 2002-06-14 Unisia Jecs Corp Shaft coupling for vehicle
JP2003049863A (en) * 2001-08-07 2003-02-21 Hitachi Unisia Automotive Ltd Shaft coupling for vehicle
US20090098944A1 (en) * 2007-10-13 2009-04-16 Zf Friedrichshafen Ag Disk for the transmission of a torque in a torque transmission device of a motor vehicle
DE102008044052A1 (en) * 2008-11-25 2010-05-27 Zf Friedrichshafen Ag Clutch element i.e. diaphragm, for transmitting torque of internal-combustion engine to e.g. automatic gearbox of motor vehicle, has outer mounting holes whose center is arranged on lines, where element has constant material thickness
DE102014221278A1 (en) * 2013-10-30 2015-04-30 Schaeffler Technologies Gmbh & Co. Kg drive arrangement
WO2017033571A1 (en) * 2015-08-25 2017-03-02 日立オートモティブシステムズ株式会社 Power transmission device

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