WO2005085673A1 - 動力伝達チェーンおよび動力伝達装置 - Google Patents
動力伝達チェーンおよび動力伝達装置 Download PDFInfo
- Publication number
- WO2005085673A1 WO2005085673A1 PCT/JP2005/004380 JP2005004380W WO2005085673A1 WO 2005085673 A1 WO2005085673 A1 WO 2005085673A1 JP 2005004380 W JP2005004380 W JP 2005004380W WO 2005085673 A1 WO2005085673 A1 WO 2005085673A1
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- WIPO (PCT)
- Prior art keywords
- chain
- power transmission
- link
- power
- hole
- Prior art date
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Classifications
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/18—V-belts, i.e. belts of tapered cross-section consisting of several parts in the form of links
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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
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
Definitions
- the present invention relates to a dynamic chain and a power transmission device.
- CVTs continuously variable transmissions
- a chain a plurality of links, usually arranged in the direction of chain travel, are connected to each other via a pair of pins. are doing.
- Each link unit includes a plurality of links arranged in a chain width direction orthogonal to the chain traveling direction.
- Each link has a pair of through holes aligned in the chain traveling direction, and the pair of pins is loosely fitted in each through hole.
- a protrusion that engages with each pin is provided on the outermost link in the chain width direction to function as a retaining link (for example, see Japanese Utility Model Application Laid-Open No. 11-104444).
- first and second transmission pins that are in rolling contact with each other are inserted into each of the pair of through holes formed in the link, and the corresponding links are mutually connected via the first and second transmission pins.
- the retaining link of the former power transmission chain increases the distance between a pair of through holes. Subject to severe pulling load.
- a guide portion is provided on the inner peripheral surface of the through hole of each link, and the guide portion guides the first and second transmission pins for mutual rolling and worm movement.
- An object of the present invention is to provide a low-cost manufacturing chain, a low-cost chain and a low-cost device without the need to perform the function of guiding the power transmission sound by a link.
- preferred embodiments of the present invention include a plurality of link units arranged in the chain traveling direction, a plurality of connection sounds for connecting the above-mentioned number of link units so as to be bendable with each other, and A power transmission chain having a correspondingly provided guide sound is provided.
- Each link unit includes a plurality of links arranged in a chain width direction orthogonal to the chain traveling direction. Each link extends in the direction of the chain and has a corresponding connection ⁇ Includes first and second through holes for penetrating the attachment.
- Each link includes a first and a second power transmission ⁇ .
- Either one of the first and second power transmissions S is guided by the above-mentioned guidance transmission, and as a result, one of the power transmission transmissions rolls on the other moving chimney to prevent the worms and the worms from sliding. While moving in a vermiform state including at least one, move to the other power transmission sound.
- the guide sound has a function of guiding the interaction between the first and second power transmission devices, it is not necessary for the link to perform the function of guiding as described above. Therefore, it is not necessary to provide a guide on the inner peripheral surface of the through hole of the link, and the manufacturing cost can be reduced. In addition, when assembling the power chain, the work of passing the power transmission sound through the through hole of the link becomes easy, and from this point, the manufacturing cost can be reduced. Since a guide is provided for each connection, no pulling force is applied to the guide member as a link receives. As a result, the durability is high.
- FIG. 1 is a perspective view schematically showing the essentials of a chain-type continuously variable transmission including a dynamic gear chain according to an embodiment of the present invention.
- FIG. 2 is a partially enlarged sectional view of a drive pulley (driven pulley) and a chain of the continuously variable transmission.
- Fig. 3 is a # 3 ⁇ 4 diagram schematically showing the configuration of the power chain.
- FIG. 4 is a cross-sectional view of a main part of the power transmission chain, showing three link units.
- FIG. 5 is a sectional view taken along the line I-I of FIG.
- FIG. 6 is a cross-sectional view taken along the line II-II of FIG.
- 7A and 7B are schematic cross-sectional views of the guide pin and the transmission pin, respectively, showing one transmission pin force S and one transmission pin when rolling against the other transmission pin. Is shown.
- FIG. 8 is a plan sectional view showing a main part of a power transmission chain according to another embodiment of the present invention.
- FIG. 9 is a cross-sectional view along the line III-III in FIG.
- FIGS. 10A, 10B, and 10C are schematic side views of a drive pulley and a driven pulley, respectively, for explaining misalignment.
- FIG. 11 is a sectional view of a main part of a power transmission chain according to another embodiment of the present invention.
- FIG. 12 is a front view of a dynamic chain i according to still another embodiment of the present invention.
- FIG. 1 is a schematic diagram showing the essential components of a chain-type continuously variable transmission (hereinafter, also simply referred to as a continuously variable transmission) as a dynamic chain i device including a dynamic chain si chain according to an embodiment of the present invention. It is a partially broken oblique view shown typically.
- a chain-type continuously variable transmission hereinafter, also simply referred to as a continuously variable transmission
- a dynamic chain i device including a dynamic chain si chain according to an embodiment of the present invention. It is a partially broken oblique view shown typically.
- the continuously variable transmission 100 is mounted on a vehicle such as an automobile.
- the continuously variable transmission 100 includes a first pulley as one of a pair of pulleys, a drive pulley 60 made of a metal (such as structural steel), and a second pulley as the other of the pair of pulleys.
- a chain an endless dynamic chain 1 wound between these pulleys 60 and 70
- the dry pulley 60 and the dry pulley 70 are variable diameter pulleys.
- the drive pulley 60 is connected to the input shaft 61 that is connected to both drive sources so that the power can be transmitted. It is attached so that it can rotate integrally.
- the drive pulley 60 includes a fixed sheave 62 and a movable sheave 63.
- the fixed sheave 62 and the movable sheave 63 have a pair of opposing sheave surfaces 62a and 63a, respectively.
- Each sheave surface 62a, 63a includes a conical inclined surface.
- a groove is defined between the sheave surfaces 62a and 63a, and the chain 1 is held between the grooves with high pressure.
- a hydraulic actuator (not shown) for changing the groove width is connected to the movable sheave 63, and is movable in the axial direction of the input shaft 61 (the fe ⁇ direction in FIG. 2) during gear shifting. By moving the sheave 63, the groove width is changed.
- the effective radius of the drive pulley 60 with respect to the chain 1 can be changed by moving the chain 1 in the radial direction of the input shaft 61 (the vertical direction in FIG. 2).
- the driven pulley 70 in the driven pulley 70, the reference numbers corresponding to the drive pulley 60 are shown in parentheses.
- the driven pulley 70 is attached to an output shaft 71 movably connected to an atriowheel (irf in the drawing), and is attached to the main shaft so as to be rotatable.
- a fixed sheave 73 and a movable sheave 72 each having a pair of opposing sheave surfaces 73a and 72a for forming a groove for sandwiching the chain 1 with high pressure are provided.
- the movable sheave 72 of the drip pump 70 is connected to a hydraulic actuator (FIG.
- Fig. 2 and Fig. 3 which is a perspective view schematically showing the configuration of a main part of a power transmission chain (hereinafter, also simply referred to as a chain), the chain 1 has plate-like links arranged in a plurality of rows. 2 and a plurality of connections 50 for mutually connecting the corresponding links 2 to each other.
- Each connection 3 ⁇ 43 ⁇ 4 ⁇ 50 includes a first transmission pin 3 as a power transmission sound Including the second transmission pin 4.
- FIG. 4 is a cross-sectional view of a main part of the chain 1.
- the chain 1 includes a plurality of link units arranged in the chain traveling direction XI, and among these link units, the first, second, and third link units 51, 52, 53 are shown in FIG. Have been.
- the link units 51, 52, 53 are connected to each other via a connecting sound 50 including first and second transmission pins 3, 4 so as to be bendable with each other.
- first or second guides 12 and 13 are provided corresponding to each connection 50.
- FIG. 5 is a cross-sectional view taken along line II of FIG. 4
- FIG. 6 is a cross-sectional view taken along line II-II of FIG.
- each link 2 includes a front 155 and a rear 6 as a pair of t arranged before and after the chain traveling direction X1, and each end 5 and 6 has a front through hole, respectively. 7 and rear through hole 8 force S formed.
- the front through-hole 7 of the link 2 of the first link unit 51 and the rear through-hole 8 of the link 2 of the second link unit 52 are arranged side by side in the chain width direction W1 perpendicular to the chain traveling direction X1.
- the first and second transmission pins 3 and 4 passing through the through holes 7 and 8 allow the first and second link units 51 and 52 to have two links S It is connected to bendable.
- the first transmission pin 3 is fixed to the front through-hole 7 of the corresponding link 2 by press-fitting, the relative rotational force S relative to the link 2 is regulated, and for example, the first transmission pin 3 is inserted into the rear through-hole 8 of the corresponding link 2. It is fitted with a small gap by means of a loose fit, and it is possible for the link 2 to move.
- the first transmission pin 3 is press-fitted and fixed to the front through-hole 7 of each link 2 of the first link unit 51, and the relative rotation of the first link unit 51 with respect to each link 2 is regulated.
- each link 2 of the second link unit 52 is loosely fitted in the rear through hole 8, so that the movement of each link 2 of the second link unit 52 is enabled.
- the front through hole 7 of the link 2 of the second link unit 5 2 is aligned with the rear through hole 8 of the link 2 of the third link unit 5 3 in the chain width direction W 1.
- 8 are connected to each other by the link 2 forces S of the second and third link units 52, 53 by a first transmission pin 3 passing through. That is, the first transmission pin 3 is fixed to the front through-hole 7 of each link 2 of the second link unit 52 by press-fitting and the rear through-hole 8 of each link 2 of the third link unit 53. Is loosely fitted.
- the links 2 of the third and fourth link units are connected to each other, and thus the two link units are sequentially connected to form an endless chain 1 as a whole. .
- a pair of ends of the first transmission pin 3 are respectively connected to a pair of outermost links 2 arranged in the chain width direction W 1 of the chain 1 in the chain width direction W 1. Projecting. A pair of end surfaces of the first transmission pin 3 are provided with power transmission surfaces 9 and 10 for contacting a sheave surface.
- the first transmission pin 3 is formed of a high-strength material such as bearing steel (for example, SUJ2) because it directly contributes to power transmission by its power transmission surfaces 9 and 10.
- bearing steel for example, SUJ2
- the second transmission pin 4 (also referred to as a strip or an interpiece) is connected to the first transmission pin 3 so as not to be infested with the sheave surfaces of the subsequent drive pulley and driven pulley. It is also a young rod.
- the second transmission pin 4 is press-fitted and fixed to the corresponding rear through-hole 8 of the link 2 to regulate the movement with respect to this link 2 and, at the same time, is loosely fitted to the front through-hole 7 of the corresponding link 2. It is fitted with a small gap, and it is possible for the link 2 to move.
- the second transmission pin 4 is, for example, loosely fitted in the front through-hole 7 of each link 2 of the first link unit 51, so that the relative movement of the first link unit 51 with respect to each link 2 is enabled. Both are fixed to the rear through holes 8 of the links 2 of the second link unit 52 by press-fitting, and the relative rotation of the links 2 of the second link unit 52 is regulated.
- the feature of the present embodiment is that the first and second guide members 12 and 13 exchange with respect to the chain traveling direction XI as the internal sounds corresponding to the respective couplings 50 of the link 2 respectively. It is in the point provided mutually.
- the second transmission pin 4 includes the first transmission pin 3 which is difficult in the chain traveling direction XI, and the rolling sliding bug (rolling thrush and sliding bug). Insects can be operated in a state where at least one of the insects is infested. As a result, it is possible to bend between adjacent link units while preventing the first transmission pin 3 force S from rotating substantially with respect to the sheave surface of the pulley. As a result, friction loss has been reduced to ensure high transmission efficiency.
- a front through hole 7, a rear through hole 8, and a communication groove 11 that connects the front through hole 7 and the rear through hole 8 to each other are formed in each link 2.
- the front through hole 7, the communication groove 11 and the rear through hole 8 as a whole form a long hole 14 extending in the chain traveling direction X1.
- the peripheral surface of the long hole 14 is preferably formed with a curvature as large as possible in order to suppress the occurrence of stress concentration, and is preferably formed in a local shape with local projections and depressions.
- the observation hole 7 is located at one of the long holes 14 (in front of the link 2) in the chain traveling direction XI, and has a fitting portion 15 and a loosely fitting portion 16 provided on the periphery of the long hole 14. Compartments are formed by The fitting part 15 is formed in a curved shape corresponding to the shape of the fitted part 17 formed on the peripheral surface of the first transmission pin 3.
- the loose fitting portions 16 are arranged near the rear end 6 of the link 2 with respect to the fitting portion 15 to form a pair, and extend in parallel with each other along the chain traveling direction X1. Each loose fitting portion 16 is connected smoothly (without a step) to the corresponding fitting portion 15.
- the space defined between the loose fitting portions 16 is larger than the cross-sectional shape of the second transmission pin 4, and the second transmission pin 4 rolls with respect to the corresponding first transmission pin 3. It is a word.
- the rear through hole 8 is located at the other end of the elongated hole 14 in the chain traveling direction XI (after the link 2), and is provided with a fitting portion 18 and a loosely fitted portion 1 provided on the periphery of the elongated hole 14. It is divided by nine.
- the fitting portion 18 is formed in a shape corresponding to the shape of the fitted portion 20 formed on the peripheral surface of the second transmission pin 4.
- the loose fitting portions 19 are arranged near the front end 5 of the link 2 with respect to the fitting portion 18 to form a pair, and extend mutually along the chain traveling direction X1. Each loose fitting portion 19 is connected to the corresponding end of the fitting portion 18 smoothly (without a step).
- the space defined between the loose fitting portions 19 is made larger than the cross-sectional shape of the first transmission pin 3, and as a result, the first transmission pin 3 corresponds to the force of the second transmission pin 4. versus Rolling Mi3 ⁇ 4 is possible.
- the communication groove 11 is located between the front through-hole 7 and the rear through-hole 8.
- the communication groove 11 is defined by a pair of intermediate portions 21 on the periphery of the long hole 14.
- the pair of intermediate portions 21 extend from each other to ⁇ f along the chain traveling direction XI.
- the width of the communication groove 11 is not particularly limited, but in the example of FIG. 5, the width of the communication groove 11 is substantially equal to the width of the front through hole 7 and the rear through hole 8. If the first and second transmission pins 3 and 4 loosely fitted to the link 2 are not guided by the corresponding guides 1 and 12, the first and second transmission pins 3 and 4 The state of engagement of transmission pins 3 and 4 with link 2 becomes unstable. As a result, the state of infestation between the first and second transmission pins 3 and 4 adjacent to the chain traveling direction XI becomes unstable, and there is a risk that the insect repelling force between the transmission pins 3 and 4 will be released.
- the first and second directions in the chain traveling direction XI can be obtained.
- the first and second transmission pins 3 and 4 are associated with each other so that they cannot be released.
- the first guide sound 12 is a pair of the first and second transmission pins 3, 4, for example, a front penetrating link 2 of the second link unit 52.
- the pair of first and second transmission pins 3 and 4 that are passed through the hole 7 are respectively disposed on the pair of holes.
- the first guide 12 has a disk shape with a first through hole 22 formed in the center.
- the inner peripheral surface of the first insertion hole 22 has a first fitting 23 and a first play 24.
- the first fitting portion 23 is formed in a shape corresponding to the shape of the fitted portion 17 of the first transmission pin 3, and the fitted portion 17 of the corresponding first transmission pin 3 is formed. Are fitted by press fitting. A corresponding second transmission pin 4 force S is loosely fitted to the first loose fitting portion 24. As a result, the second transmission pin 4 is able to perform a rolling motion in a state in which the second transmission pin 4 inverts with respect to the first transmission pin 3.
- the first loose fitting portion 24 is provided with a first guide surface 25 for guiding the rolling contact movement of the second transmission pin 4 to the corresponding first transmission pin 3.
- one pair of transmission pin 3 and second transmission pin 4 has opposing portions 31 and 32 facing each other.
- the first transmission pin 3 is connected to the second transmission pin Insects at the pin 4 and the point T.
- Fig. 6 corresponds to link 2 in the hot spring area L1 of chain 1 (see Fig. 1)
- the inversion point ⁇ between the first and second transmission pins 3 and 4 is the inversion point T1.
- the position of the inversion point ⁇ 1 corresponds to the position of the starting point of the following involute curve.
- the opposed portions 31 and 32 are provided on the peripheral surfaces of the first and second transmission pins 3 and 4, respectively.
- the inversion point ⁇ is a tangent line between the opposed portions 31 and 32 of the first and second transmission pins 3 and 4 and extends along the chain width direction W1 when viewed along the chain width direction W1. This corresponds to the state where
- the first transmission pin 3 and the second transmission pin 4 roll and slide while displacing the reciprocating point ⁇ of each other as the links 2 adjacent to each other in the chain traveling direction X 1 bend the links 2. I do. At this time, the movement «of the rolling point ⁇ ⁇ of the rolling motion forms an involute curve.
- the opposing portion 32 of the second transmission pin 4 is formed on a flat surface (represented as a straight line in FIG. 6) extending in the chain width direction W1, and the opposing portion 3 1 of the first transmission pin 3 is formed. Are formed on the curved surface.
- the curved surface of the opposing portion 31 is viewed along the chain width direction, it has the above-mentioned impregnated curve.
- connection pitch ⁇ ⁇ for connecting the link units adjacent in the chain traveling direction is set to a predetermined amount.
- the connection pitch ⁇ is an arrangement interval between the pair of first transmission pins 3 adjacent to each other in the chain traveling direction XI in the 3 ⁇ 4
- the connection pitch ⁇ is determined by the contact point ⁇ 1 between the first transmission pin 3 and the second transmission pin 4 in the front through-hole 7 of the link 2 in the linear region of the chain 1, and It corresponds to the distance in the chain traveling direction XI between the first transmission pin 3 and the second transmission pin 4 in the rear through hole 8 of the link 2 and the contact point ⁇ 1 of each other.
- the second transmission pin 4 rolls with respect to the corresponding first transmission pin 3. 7A (the hatching of the second transmission pin 4 is not shown).
- the first guide surface 25 is formed in a shape corresponding to this.
- the second guide 1 appendix 13 includes a pair of the first and second transmission pins 3 and 4, for example, the link 2 of the second link unit 52.
- the first and second transmission pins 3 and 4 that are inserted into the rear through hole 8 are disposed on a pair of ⁇ 3 ⁇ 4 ⁇ , respectively.
- the second guide 13 has a disk shape with a second through hole 26 formed in the center.
- the inner peripheral surface of the second through hole 26 has a second fitting part 27 and a second loose fitting part 28.
- the second fitting part 27 is formed in a shape corresponding to the shape of the fitting part 20 of the second transmission pin 4, and the fitting part 20 force of the corresponding second transmission pin 4 is formed. S Press fit.
- the corresponding first transmission pin 3 force S is loosely fitted to the second free fitting portion 28, and the first transmission pin 3 is rolled with respect to the second transmission pin 4 that is in contact with each other. Exercise is enabled.
- the second loose fitting portion 28 is provided with a second guide surface 29 for guiding the rolling contact movement of the first transmission pin 3 to the corresponding second transmission pin 4.
- the first transmission pin 3 when the first transmission pin 3 makes a rolling motion with respect to the corresponding second transmission pin 4 in a state where the second guide 1 is viewed from the side, The first transmission pin 3 follows the difficulty shown in FIG. 7B (the hatching of the first transmission pin 3 is not shown).
- the second plan Inner surface 29 is formed in a shape corresponding to this réelle
- the corresponding first and second transmission pins 3 and 4 are associated with each other by the first and second guides 1 and 12 and 13. Therefore, it is possible to surely achieve the rolling and infestation movement of the two and to prevent rattling between the transmission pins 3 and 4.
- the link 2 does not need to fulfill the function of guiding the rolling contact movement of the first and second transmission pins 3 and 4. Therefore, it is not necessary to provide guide portions in the front through-hole 7 and the rear through-hole 8 of the link 2, so that the manufacturing cost can be reduced.
- each link 2 is easily elastically deformed.
- the initial stress and power stress generated at the periphery of each through hole 7, 8 into which the corresponding first and second transmission pins 3, 4 are press-fitted can be significantly reduced.
- the weight of each link 2 can be reduced, so that the entire chain 1 can be reduced in weight.
- first and second guides (1) and (12) and (13) is not limited to the above-described embodiment. It is sufficient if at least one is provided for each pair of corresponding first and second transmission pins 3 and 4.
- the first and second guides 12 and 13 may be provided at any one of the first and second transmission pins 3 and 4 in the axial direction, at the other, or at the intermediate portion. Alternatively, three or more of the corresponding first and second transmission pins 3 and 4 may be provided.
- first guide 12 and the second guide 5 13 may be interchanged. Further, only one of the first and second guides 1 and 2 and 13 may be provided on the swing pins 3 and 4.
- FIG. 8 is a cross-sectional view of a main part of a power transmission chain 30 according to another embodiment of the present invention
- FIG. 9 is a cross-sectional view taken along the line II-II of FIG.
- points different from the embodiment shown in FIG. 4 will be mainly described, and the same components will be denoted by the same reference numerals in the drawings, and description thereof will be omitted.
- the present embodiment is different from the embodiment shown in FIG. 2 mainly in the following two points. That is, the point that the first and second transmission pins 3 and 4 are movably fitted into both the front through-hole 7 and the rear through-hole 8 of each link 2 and the first and second guide pins ⁇ Appendices 12 and 13 cooperate with each other to prevent the link 2 from coming off from the first and second transmission pins 3 and 4.
- the first and second guides (1) and (2) and (1) are provided for each pair of first and second transmission pins (3) and (4) that roll down to each other! / Puru. More specifically, the first and second guides 12 and 13 are provided on a pair of the first and second transmission pins 3 and 4 of each set, respectively. In the chain width direction W1, each link 2 is sandwiched by the first and second guide sounds 12 and 13.
- one of the first and second guide members 12 and 13 is disposed in difficulty with the link 2, and the other force S It is located outside one transmission pin (close to the corresponding end of the first transmission pin 3).
- the first guide member 12 is arranged on the link 2 with a difficulty, and is arranged outside the second guide member 13 and the first guide member 12.
- the second guide (1) to (13) may be difficult to place on link (2).
- each link 2 can move in the chain width direction W1 with respect to the adjacent link 2, and it is possible to prevent the frictional resistance due to the stroke between the links 2 from becoming excessive. As a result, drive loss can be sufficiently reduced and transmission efficiency can be significantly improved. In addition, noise caused by the worms between the links 2 can be significantly reduced.
- the first transmission pin 3 is moved (skewed) in the chain width direction W1 to allow this misalignment. Can be.
- misalignment is a misalignment that causes a displacement between the drive pulley 60 and the drive pulley 70 in the horizontal direction (the direction orthogonal to the power transmission direction).
- the misalignment Bl caused by the drive pulley 60 and the driven pulley 70 pointing in different directions from each other, and as shown in FIG. 10C, the drive pulley 60 and the driven pulley 70 0 Force S
- 1,2,3,3 Force Since it also has the function of preventing the link 2 from coming off from the first and second transmission pins 3,4, a special attachment sound is provided. There is no need to provide a separate device, and the device can be simplified to achieve downsizing and cost reduction.
- each link 2 is easily elastically deformed.
- the first and second transmission pins 3 and 4 are fitted into the through holes 7 and 8 of each link 2 with such strength that they can move. It is possible to significantly reduce the initial stress and the stress during power transmission that occur on the periphery of the steel. As a result, it is possible to prevent the stress concentration of each link 2 during power transmission from becoming excessive, and to transmit as much power as possible. Furthermore, the durability can be significantly improved. Further, the weight of each link 2 can be reduced by the provision of the communication groove 11, so that the entire chain 1 can be reduced in weight.
- first and second guide members 12 and 13 of each set may be interchanged.
- first transmission pin 3 has been described as invading the sheave surface to perform the movement.
- the present invention is not limited to this, and the first and second transmission pins 3 and 4 may be used. It can also be applied to power transmission by contacting both with the thief.
- connection attachments may be used as the connection attachment.
- two connecting members a first connecting member 5A and a second connecting member 50B, are used: ⁇ .
- the moving demand at the inversion point Tb of rolling sliding between the first transmission pin 3B of B and the corresponding second transmission pin 4 is set to be mutually different.
- the shape of the facing portion 31A of the first transmission pin 3A and the shape of the facing portion 31B of the first transmission pin 3B are different from each other.
- the basic circle of the impulse ⁇ formed by the opposing portion 31 B of the transmission pin 1 B of 1 ⁇ differs from ⁇ f ⁇ R b ⁇ of the base circle KB.
- ⁇ ⁇ ⁇ RbB is larger than judgment RbA (RbA ⁇ RbB).
- the first connection ⁇ Appendix 5 OA and the second connection ⁇ Appendix 50B force The chain of the chain 1 is randomly arranged in at least ⁇ in the traveling direction X.
- the first connection ⁇ Appendix 5 OA and the second connection member 50B force may be arranged randomly in the; ⁇ region of the chain traveling direction X1 of the chain 1. It suffices that at least one of the first connection 5A and the second connection 50B is randomly arranged in at least a part of the chain 1 in the chain traveling direction X.
- a random arrangement is an arrangement without at least one of periodicity and regularity.
- At least one of the first transmission pin 3A and the first transmission pin 3B is a chain.
- the non-fiber IJ at least part of the chain travel direction X of the shaft 1.
- the position of the imitation point T a1 between the first transmission pin 3 A of the first connection appendix 50 and the corresponding second transmission pin 4 is the force that is aligned along the chain traveling direction X1. It is preferable because unnecessary moment is not generated between each first transmission pin 3 and the corresponding second transmission pin 4.
- the position of the above-mentioned inversion point T a1 and the position and force of the inversion point T b1 may be offset in the orthogonal direction Y 1 orthogonal to both the chain traveling direction X 1 and the chain width direction W 1 .
- FIG. 12 there is a link unit having the above B3 ⁇ 4 number including the link unit 81 of the first specification and the link unit 82 of the second specification.
- the link unit 8 of the first specification 8 The arrangement interval P 1 (corresponding to the connection pitch) between the first transmission pins 3, 3 before and after the chain travel direction X 1 of the link 2 of the link 1 of 1, and the link of the second specification
- the arrangement intervals P2 (corresponding to connection pitches) of the first transmission pins 3 before and after the chain traveling direction X1 of the link 2 of the unit 82 are different from each other. The distance is longer than the interval P 2.
- link unit 81 of the first specification and the link unit 82 of the second specification are randomly arranged in at least a part of the chain traveling direction X1 of the chain 1.
- Link units 8 1 and 2 of the first specification Link specification unit 8 2 In the region of the chain traveling direction XI, they may be arranged randomly. It is sufficient that at least one of the link unit 81 of the first specification and the link unit 82 of the second specification is randomly arranged in at least ⁇ ⁇ in the chain traveling direction X1.
- a random arrangement is an arrangement without at least one of periodicity and fiber IJ.
- a random arrangement for the involute shown in FIG. 11 and a random arrangement for the connection pitch shown in FIG. 12 may be used in combination.
- the power securing device of the present invention is not limited to a mode in which the groove widths of both the drive pulley 60 and the driven pulley 70 fluctuate, but only one of the groove widths fluctuates, and
- the mode may be a fixed width that does not fluctuate.
- the mode in which the groove widths of the drive pulley 60 and the drive pulley 70 change continuously (steplessly) has been described.
- the groove width may be changed stepwise or may be fixed (stepless). It may be applied to other dynamic Si devices.
- the power transmission surfaces 9, 10 (end faces) of the first transmission pin 3 are transferred to the corresponding sheaves 62a, 63a, 72a, 73a to transmit power.
- the present invention is not limited to this, and both the first and second transmission pins 3 and 4 may contact the sheep surface to transmit power. It is also possible to use a chain of a type provided with another power transmission ⁇ , such as a power supply 5 provided with a g-plane.
- the pair of intermediate portions 21 of the long holes 14 of each link 2 are formed to have a convexly curved shape so that the distance between the long holes 14 is small, and the front through hole 7 and the rear through hole It may be formed narrower than 8.
- the communication groove 11 may be omitted, and the front through-hole 7 and the rear through-hole 8 of the link 2 may be separated from each other via a column.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05720651A EP1722127A4 (en) | 2004-03-05 | 2005-03-07 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION DEVICE |
US10/591,638 US20070191166A1 (en) | 2004-03-05 | 2005-03-07 | Power transmission chain and power transmission device |
JP2006510824A JPWO2005085673A1 (ja) | 2004-03-05 | 2005-03-07 | 動力伝達チェーンおよび動力伝達装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-062919 | 2004-03-05 | ||
JP2004062919 | 2004-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005085673A1 true WO2005085673A1 (ja) | 2005-09-15 |
Family
ID=34918134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/004380 WO2005085673A1 (ja) | 2004-03-05 | 2005-03-07 | 動力伝達チェーンおよび動力伝達装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070191166A1 (ja) |
EP (1) | EP1722127A4 (ja) |
JP (1) | JPWO2005085673A1 (ja) |
KR (1) | KR20070020211A (ja) |
CN (1) | CN100482969C (ja) |
WO (1) | WO2005085673A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013096493A (ja) * | 2011-10-31 | 2013-05-20 | Toyota Central R&D Labs Inc | 無段変速機のチェーン |
JP2014052018A (ja) * | 2012-09-06 | 2014-03-20 | Toyota Central R&D Labs Inc | 無段変速機のチェーン |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4803423B2 (ja) * | 2005-10-14 | 2011-10-26 | 株式会社ジェイテクト | 動力伝達チェーンおよびこれを備える動力伝達装置 |
JP4826899B2 (ja) * | 2006-03-30 | 2011-11-30 | 株式会社ジェイテクト | 動力伝達チェーンおよびこれを備える動力伝達装置 |
JP4923799B2 (ja) * | 2006-07-13 | 2012-04-25 | 株式会社ジェイテクト | 動力伝達チェーンおよび動力伝達装置 |
JP5160096B2 (ja) * | 2007-01-31 | 2013-03-13 | 株式会社ジェイテクト | 動力伝達チェーンおよびこれを備える動力伝達装置 |
JP6298736B2 (ja) * | 2014-08-08 | 2018-03-20 | 株式会社豊田中央研究所 | 無段変速機及び無段変速機を設計する方法 |
DE112021001116A5 (de) * | 2020-02-19 | 2022-12-22 | Schaeffler Technologies AG & Co. KG | Wiegedruckstück für ein wiegedruckstückpaar einer laschenkette |
DE102020129931B4 (de) * | 2020-11-12 | 2022-12-22 | Schaeffler Technologies AG & Co. KG | Laschenkette und Kegelscheibenumschlingungsgetriebe |
Citations (5)
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JPH01108444U (ja) | 1988-01-16 | 1989-07-21 | ||
JPH08312725A (ja) | 1995-05-03 | 1996-11-26 | Gear Chain Ind Bv | コーンプーリトランスミッションのための伝動用チェーン |
JP2001003996A (ja) * | 1999-06-23 | 2001-01-09 | Tsubakimoto Chain Co | サイレントチェーン |
JP2002147542A (ja) * | 2000-09-06 | 2002-05-22 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | リンクプレートチェーン |
JP2002242994A (ja) * | 2001-02-08 | 2002-08-28 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | リンクプレートチェーン |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1302795B (ja) * | 1964-11-25 | 1970-11-12 | ||
NL8700144A (nl) * | 1987-01-21 | 1988-08-16 | Volvo Car Bv | Borgplaat- en pensamenstel voor de drijfketting van een continu variabele transmissie. |
DE8715815U1 (de) * | 1987-11-30 | 1988-01-21 | Schopf, Walter, Dipl.-Ing., 61440 Oberursel | Laschenkette für stufenlos verstellbare Kegelscheibengetriebe |
US5052985A (en) * | 1988-06-27 | 1991-10-01 | Mitsubishi Belting Ltd. | Chain-type power transmission belt |
DE10036258B4 (de) * | 1999-09-09 | 2013-02-28 | Schaeffler Technologies AG & Co. KG | Laschenkette |
-
2005
- 2005-03-07 KR KR1020067018116A patent/KR20070020211A/ko not_active Application Discontinuation
- 2005-03-07 US US10/591,638 patent/US20070191166A1/en not_active Abandoned
- 2005-03-07 CN CNB2005800070821A patent/CN100482969C/zh not_active Expired - Fee Related
- 2005-03-07 EP EP05720651A patent/EP1722127A4/en not_active Withdrawn
- 2005-03-07 JP JP2006510824A patent/JPWO2005085673A1/ja not_active Withdrawn
- 2005-03-07 WO PCT/JP2005/004380 patent/WO2005085673A1/ja not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01108444U (ja) | 1988-01-16 | 1989-07-21 | ||
JPH08312725A (ja) | 1995-05-03 | 1996-11-26 | Gear Chain Ind Bv | コーンプーリトランスミッションのための伝動用チェーン |
JP2001003996A (ja) * | 1999-06-23 | 2001-01-09 | Tsubakimoto Chain Co | サイレントチェーン |
JP2002147542A (ja) * | 2000-09-06 | 2002-05-22 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | リンクプレートチェーン |
JP2002242994A (ja) * | 2001-02-08 | 2002-08-28 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | リンクプレートチェーン |
Non-Patent Citations (1)
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013096493A (ja) * | 2011-10-31 | 2013-05-20 | Toyota Central R&D Labs Inc | 無段変速機のチェーン |
US9303724B2 (en) | 2011-10-31 | 2016-04-05 | Jtekt Corporation | Chain for continuously variable transmission |
US9464688B2 (en) | 2011-10-31 | 2016-10-11 | Jtekt Corporation | Chain for continuously variable transmission |
JP2014052018A (ja) * | 2012-09-06 | 2014-03-20 | Toyota Central R&D Labs Inc | 無段変速機のチェーン |
US9316287B2 (en) | 2012-09-06 | 2016-04-19 | Jtekt Corporation | Chain for continuously variable transmission |
Also Published As
Publication number | Publication date |
---|---|
CN1930406A (zh) | 2007-03-14 |
KR20070020211A (ko) | 2007-02-20 |
EP1722127A4 (en) | 2009-11-04 |
US20070191166A1 (en) | 2007-08-16 |
JPWO2005085673A1 (ja) | 2008-01-24 |
CN100482969C (zh) | 2009-04-29 |
EP1722127A1 (en) | 2006-11-15 |
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