WO2014006744A1 - 金属ベルト用エレメント - Google Patents
金属ベルト用エレメント Download PDFInfo
- Publication number
- WO2014006744A1 WO2014006744A1 PCT/JP2012/067349 JP2012067349W WO2014006744A1 WO 2014006744 A1 WO2014006744 A1 WO 2014006744A1 JP 2012067349 W JP2012067349 W JP 2012067349W WO 2014006744 A1 WO2014006744 A1 WO 2014006744A1
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- WIPO (PCT)
- Prior art keywords
- pulley
- belt
- metal belt
- continuously variable
- variable transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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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
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
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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
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
- F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
- F16H9/18—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
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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
- F16H2200/00—Transmissions for multiple ratios
Definitions
- the present invention relates to a metal belt element wound around a drive pulley and a driven pulley of a continuously variable transmission.
- FIG. 6 shows a case where the contact surfaces (hereinafter referred to as “V surfaces”) between the drive and driven pulleys 98 and 95 and the metal belt 97 in a cross section including the central axis of the drive pulley 98 and the driven pulley 95 are formed linearly.
- the deviation ⁇ e of the longitudinal center line of the metal belt 97 in the same cross section is shown.
- the metal belt 97 is driven and driven pulleys 98 and 95 by changing the transmission ratio from the maximum (Low ratio) to the minimum (overdrive (OD) ratio) through the intermediate (MID ratio).
- the movement of the metal belt 97 differs between the drive pulley 98 side and the driven pulley 95 side.
- the width of the pulley groove is set so that the inclination angle of the bus on the outer diameter side of the pulley (angle relative to the plane perpendicular to the central axis of the pulley) is wider than the inclination angle of the inner diameter side bus.
- the inner diameter side of the metal belt is set to be in line contact, and the inner diameter side angle of the metal belt is set to be in line contact with the outer diameter side of the pulley to suppress misalignment.
- Patent Document 2 since the contact portion between the pulley and the element is a point contact, there is a problem that the friction coefficient between the element and the pulley decreases in a small diameter state where the element contacts on the inner diameter side of the pulley. .
- the present invention provides a metal belt element for a continuously variable transmission that can reduce misalignment while ensuring frictional force between an element and a pulley in a small diameter state. With the goal.
- the present invention includes a drive pulley and a driven pulley each having a pulley groove defined by a fixed pulley half and a movable pulley half, and an element.
- a pulley and a belt wound around a pulley groove of the driven pulley, and at least a contact surface between the stationary pulley half and the movable pulley half of the element of the stationary pulley half is a contact surface thereof.
- a constant-angle inclined bus bar portion is formed in which the bus bar is inclined at a constant angle so that the pulley groove extends radially outward, and the radially outer side of the contact surface is radially outward.
- a curved bus bar portion is formed in which the bus bar is curved so that the inclination angle increases while the pulley groove gradually expands toward one of the drive pulley and the driven pulley.
- a belt element wherein a radially outer side of the belt at a side edge of the belt element that contacts the drive pulley and the driven pulley has a linear shape along the constant angle inclined bus portion,
- the radially inner side of the belt on the side edge tapers inward, and the inclination angle (inclination angle with respect to a plane perpendicular to the central axis of the pulley) gradually increases.
- Characterized in that it is a curved shape that curves in Kunar so.
- the constant angle inclined bus portion of the pulley and the linear portion of the side edge of the element are in contact, and the element and the pulley are in line contact.
- the curved busbar portion of the pulley and the curved portion of the side edge of the element come into contact with each other, and the element and the pulley come into point contact. Therefore, according to the present invention, it is possible to prevent a decrease in the friction coefficient when the belt is wound around the pulley with a small diameter and a decrease in the durability of the belt and the pulley due to the high surface pressure.
- the curved shape on the inner side in the radial direction of the side edge of the element is such that the pulley and the element come into contact with each other from the inclination angle of the linear shape on the outer side in the radial direction of the side edge of the element. It is preferable to be configured to smoothly curve to an angle equal to or greater than the tangential angle of the outermost diameter in the contact range.
- the portion where the element and the pulley are in contact with each other moves as the speed ratio changes. Therefore, during shifting, the same part of the element can be prevented from coming into contact with the pulley for a relatively long time, and the durability of the element can be improved.
- the oil drain groove is preferably formed in a linear portion excluding the boundary portion between the linear shape and the curved shape of the element. According to such a configuration, when the contact portion between the element and the pulley changes between the linear portion of the pulley and the curved portion of the pulley as the gear shifts, the shift becomes smooth.
- Explanatory drawing which shows typically the continuously variable transmission using the element of one Embodiment of this invention.
- Explanatory drawing which shows the metal belt of this embodiment.
- Explanatory drawing which shows the element of this embodiment.
- Explanatory drawing which shows the pulley and element of this embodiment.
- Explanatory drawing which shows the state of the metal belt wound around the pulley of this embodiment.
- Explanatory drawing which shows the misalignment of the conventional continuously variable transmission.
- FIG. 1 shows the overall configuration of a belt-type continuously variable transmission 1 using elements according to an embodiment of the present invention.
- the belt type continuously variable transmission 1 includes a transmission input shaft 2 connected via an output shaft of an engine ENG as a drive source via a flywheel damper 10, a transmission counter shaft 3 disposed in parallel thereto,
- the metal belt mechanism 4 is disposed between the shafts 2 and 3 and the forward / reverse switching mechanism 20 is disposed on the transmission input shaft 2.
- the belt type continuously variable transmission 1 is provided with a hydraulic pump 30 and a transmission control valve 60.
- the hydraulic pump 30 sends hydraulic oil to the transmission control valve 60 via the oil passage 30c.
- the transmission control valve 60 can adjust and control the hydraulic pressure of the hydraulic fluid sent. Then, the hydraulic oil regulated by the transmission control valve 60 is sent to the metal belt mechanism 4 through the oil passages 30d and 30e, whereby the transmission control of the belt type continuously variable transmission 1 is performed.
- the metal belt mechanism 4 includes a drive pulley 5 that is rotatably disposed on the transmission input shaft 2 and a driven pulley 8 that is disposed on the transmission counter shaft 3 so as to rotate integrally with the transmission counter shaft 3. And a metal belt 7 wound around both pulleys 5 and 8.
- the metal belt 7 includes a large number of elements 40 connected in a ring shape and two bundles of rings 50 attached to the elements 40 in a stacked state.
- the element 40 is formed in a flat plate shape, a head portion 41 extending from the ear portion 42 to the left and right, a body portion 44 extending from the ear portion 42 to the left and right, and the body portion 44 and the head.
- the neck portion 43 is connected to the portion 41.
- a nose hole 41a is formed on one surface of the head portion 41, and a nose portion 41b that can be inserted into the nose hole 41a of the adjacent element 40 is formed on the other surface.
- the nose portions 41b are fitted into the nose holes 41a between the adjacent elements 40, the adjacent elements 40 are connected to each other.
- the ring 50 is configured by laminating annular endless metal strips in the radial direction, and is disposed in a space defined by the ear part 42, the neck part 43, and the body part 44 formed on the left and right sides of the element 40. It is sandwiched between the lower edge of the portion 42 and the upper edge (saddle surface 45) of the body portion 44.
- a V surface 46 having a V-shape is formed on both left and right edges of the body portion 44 so as to gradually taper inward in the belt radial direction.
- the V surface 46 is formed by a drive pulley 5 and a driven pulley described later. 8 is held in contact with the V surface 11.
- the drive pulley 5 is disposed on the transmission input shaft 2 so as to be rotatable and immovable in the axial direction.
- the drive pulley 5 is moved relative to the fixed pulley half 5A in the axial direction. It is composed of a movable pulley half 5B that can be used.
- a drive-side cylinder chamber 6 is formed on the side of the movable pulley half 5B, and a shaft that moves the movable pulley half 5B in the axial direction by the hydraulic pressure supplied from the transmission control valve 60 via the oil passage 30d.
- Directional thrust (drive pulley axial thrust) is generated.
- a portion (contact surface) that contacts the metal belt 7 of the fixed pulley half 5A is formed with a V surface 11, and this V surface 11 also faces the fixed pulley half 5A in the movable pulley half 5B. It is formed to do. And the metal belt 7 is clamped by the V surface 11 formed in the fixed pulley half 5A and the movable pulley half 5B.
- the driven pulley 8 includes a fixed-side pulley half 8A that is coupled to the transmission counter shaft 3 and a movable-side pulley half that can move relative to the fixed-side pulley half 8A in the axial direction. 8B.
- a driven cylinder chamber 9 is formed on the side of the movable pulley half 8B, and a shaft that moves the movable pulley half 8B in the axial direction by the hydraulic pressure supplied from the speed change control valve 60 through the oil passage 30e.
- Directional thrust (driven pulley axial thrust) is generated.
- the driven pulley 8 also has a V surface 11, and the metal belt 7 is sandwiched between the V surface 11 of the stationary pulley half 8A and the movable pulley half 8B.
- the radially inner portion 11a of the V surface 11 is defined between the stationary pulley halves 5A and 8A and the movable pulley halves 5B and 8B in the radially outward direction.
- the bus is a constant-angle inclined bus portion that is inclined at a constant angle ⁇ (where ⁇ is an angle with respect to a plane perpendicular to the central axis of the pulley) so that the pulley grooves 5C and 8C expand.
- the radially outer portion 11b of the V surface 11 is a curved busbar portion where the busbar is curved so that the pulley grooves 5C and 8C gradually expand outward in the radial direction and the inclination angle gradually increases.
- the belt radial outer portion 46b of the V surface 46 that is the side edge of the element 40 has a linear shape along the radial inner portion 11a of the V surface 11 that is a constant angle slope of the pulleys 5 and 8, and the inclination angle is set to ⁇ .
- a plurality of oil drain grooves 47 extending in the plate thickness direction of the element 40 are provided in the belt radial direction outer portion 46b.
- the belt radial direction inner side 46a of the V surface 46 has a curved shape that curves so as to make point contact with the radial direction outer side portion 11b of the V surface 11 that is a curved slope.
- the oil drain groove 47 is not provided at the boundary between the belt radial direction outer portion 46b and the belt radial direction inner portion 46a.
- 5 and 8 and the element 40 are configured to be smoothly curved so as to be the tangential angle ( ⁇ ′ + ⁇ ) of the outermost diameter of the V surface 11 as a contact range.
- a pulley shaft thrust (slip prevention shaft thrust) that does not cause the metal belt 7 to slip.
- the pulley widths of the drive pulley 5 and the driven pulley 8 can be variably set.
- the belt-type continuously variable transmission 1 can continuously change the wrapping radius of the metal belt 7 around the pulleys 5 and 8 to control the speed ratio continuously (continuously).
- the forward / reverse switching mechanism 20 includes a planetary gear mechanism PGS, a forward clutch 24, and a reverse brake 25.
- the planetary gear mechanism PGS includes a sun gear 21 coupled to the transmission input shaft 2, a ring gear 23 coupled to the stationary pulley half 5A, and a pinion 22a meshing with the sun gear 21 and the ring gear 23 so as to freely rotate and revolve. It is comprised by the single pinion type
- the reverse brake 25 is configured to be able to fix and hold the carrier 22 to the casing Ca.
- the forward clutch 24 is configured to be able to connect the sun gear 21 and the ring gear 23.
- the forward clutch 24 When the forward clutch 24 is engaged, the sun gear 21, the carrier 22 and the ring gear 23 rotate integrally with the transmission input shaft 2, and the drive pulley 5 is driven in the same direction (forward direction) as the transmission input shaft 2. Is done.
- the reverse brake 25 is engaged, the carrier 22 is fixedly held in the casing Ca, and the ring gear 23 is driven in the reverse direction (reverse direction) to the sun gear 21.
- the planetary gear mechanism PGS can also be configured as a double pinion type.
- the stationary pulley half 5A may be coupled to the carrier, and a reverse brake may be provided on the ring gear.
- the power of the engine ENG is shifted through the metal belt mechanism 4 and the forward / reverse switching mechanism 20 and transmitted to the transmission countershaft 3.
- the power transmitted to the transmission countershaft 3 is transmitted to the differential mechanism 29 via the starting clutch 26 and the gears 27a, 27b, 28a, 28b, and is divided and transmitted from here to left and right wheels (not shown).
- the hydraulic pressure supply to the drive-side cylinder chamber 6 and the driven-side cylinder chamber 9 is controlled by the shift control valve 60, and the shift control is performed.
- the operation control of the shift control valve 60 is performed by the shift control unit.
- the shift control signals CDR and CDN from 70 are used.
- the shift control valve 60 includes two solenoid valves that control the hydraulic pressure supplied to the drive side cylinder chamber 6 and the driven side cylinder chamber 9, and these solenoid valves are output from the shift control unit 70. Shift control is performed in response to signals CDR and CDN . As a result, the hydraulic pressure in the cylinder chambers 6 and 9 is set based on the shift control signals C DR and C DN , and the drive and driven pulley axial thrust acting on the drive and driven pulleys 5 and 8 is set.
- the shift control unit 70 For this shift control, the shift control unit 70, the engine speed signal Ne, an engine throttle opening signal T H, the vehicle speed signal V, a drive pulley obtained from the drive-side rotational speed detector 71 rotation signal N DR and the driven side obtained from the rotational speed detector 72 driven pulley rotational signal N DN is input is detected.
- the shape of the generatrix of the radially inner portion 11a of the V surface 11 of the pulleys 5 and 8 is a straight line with a constant angle slope, and the radially outer portion 46b of the V surface 46 of the element 40 is the same as the radially inner portion 11a of the pulleys 5 and 8.
- the friction coefficient ⁇ between the V surface 11 of the pulleys 5 and 8 and the V surface 46 of the element 40 is not constant.
- the friction coefficient ⁇ increases, and the V surface 11 And the V surface 46 are in point contact, the friction coefficient ⁇ becomes small.
- the radial inner portion 11 a and the radial outer portion 11 b of the V surface 11 the radial inner portion 11 a whose bus shape is a straight line is in line contact with the radial outer portion 46 b of the V surface 46.
- the friction coefficient ⁇ is increased, and the radially outer portion 11b having a curved bus bar shape is brought into point contact with the radially inner portion 46a of the V surface 46, and the friction coefficient ⁇ is decreased.
- FIG. 5A shows the state of the metal belt 7 when the gear ratio i is LOW, and the winding radius of the metal belt 7 decreases on the drive pulley 5 side and increases on the driven pulley 8 side. Therefore, the number of elements 40 that engage with the drive pulley 5 is smaller than the number of elements 40 that engage with the driven pulley 8.
- the transmission torque is given by the product of the frictional force borne by each element 40, the number of elements 40 engaged with the pulleys 5 and 8, and the distance from the axis to the winding position. Since the number of elements 40 engaged with the distance and the distance from the axis to the winding position are both small, the frictional force borne by each element 40 is increased. On the other hand, on the driven pulley 8 side, since the number of elements 40 that engage with each other and the distance from the axis to the winding position are both large, the frictional force that each element 40 bears is small.
- the shape of the generatrix of the radially inner portion 11a of the drive pulley 5 is a straight line, and the radially outer portion 46b of the V surface 46 is in line contact with the radially inner portion 11a of the drive pulley 5. Since the friction coefficient ⁇ increases, the slip of the metal belt 7 can be reliably prevented. Further, even if the shape of the bus bar of the radially outer portion 11b of the drive pulley 5 and the shape of the radially inner portion 46a of the element 40 are configured with curves to compensate for misalignment, each element 40 bears on the large diameter side. Since the frictional force to be applied is small, the metal belt 7 does not slip.
- FIG. 5 (B) shows the state of the metal belt 7 when the gear ratio i is OD, and the winding radius of the metal belt 7 decreases on the driven pulley 8 side and increases on the drive pulley 5 side. Therefore, the number of elements 40 that engage with the driven pulley 8 on the small diameter side is smaller than the number of elements 40 that engage with the drive pulley 5 on the large diameter side.
- the transmission torque is given by the product of the frictional force borne by each element 40, the number of elements 40 engaged with the pulleys 5 and 8, and the distance from the axis to the winding position. Since the number of elements 40 engaged with the distance and the distance from the axis to the winding position are both small, the frictional force borne by each element 40 is increased. On the other hand, on the drive pulley 5 side, since the number of elements 40 engaged with the drive pulley 5 and the distance from the axis to the winding position are both large, the frictional force borne by each element 40 is small.
- the shape of the generatrix of the radially inner portion 11 a of the driven pulley 8 is a straight line, and the radially outer portion 46 b of the V surface 46 is in line contact with the radially inner portion 11 a of the driven pulley 8. Since the friction coefficient ⁇ increases, the slip of the metal belt 7 can be reliably prevented. Even if the shape of the bus bar of the radially outer portion 11b of the drive pulley 5 and the shape of the radially inner portion 46a of the element 40 are configured with curves to compensate for misalignment, the individual elements 40 are arranged on the large diameter side. Since the frictional force to be borne is small, the metal belt 7 does not slip.
- the continuously variable transmission 1 using the element 40 of the present embodiment when the metal belt 7 is wound around the pulleys 5 and 8 with a small diameter, the inside of the pulleys 5 and 8 in the radial direction as the constant angle inclined bus portion.
- the part 11a and the belt radial direction outer part 46b as a linear part of the side edge of the element 40 are in contact with each other, and the element 40 and the pulleys 5 and 8 are in line contact with each other.
- the belt outer diameter 11b as the curved bus bar portion of the pulleys 5 and 8 and the belt diameter as the curved portion of the side edge of the element 40 are used.
- the direction inner part 46a comes into contact, and the element 40 and the pulleys 5 and 8 are brought into point contact.
- the portion where the element and the pulley come in contact with the change of the gear ratio moves. Therefore, during shifting, the same part of the element can be prevented from coming into contact with the pulley for a long period of time, and the durability of the element can be improved.
- the oil drain groove 47 extending in the plate thickness direction of the element 40 is formed in the linearly outer portion of the side edge of the element 40, that is, the belt radial outer portion 46b, the element 40 and the pulley 5 are formed. , 8 can be appropriately discharged (released) from the oil drain groove 47, and slip of the metal belt 7 can be prevented.
- the oil drain groove 47 provided on the side edge of the element 40 excludes the boundary portion between the belt radial direction outer portion 46b that is a linear shape of the element 40 and the belt radial direction inner portion 46a that is a curved shape.
- a plurality of belt-shaped outer portions 46b, which are linear portions, are formed. According to such a configuration, the transition of the contact portion between the element 40 and the pulleys 5 and 8 accompanying the speed change becomes smooth between the radially inner portion 11a and the radially outer portion 11b of the pulleys 5 and 8.
- SYMBOLS 1 Belt type continuously variable transmission, 2 ... Transmission input shaft, 3 ... Transmission counter shaft, 4 ... Metal belt mechanism, 5 ... Drive pulley, 5A ... Fixed pulley half, 5B ... Movable pulley half, 5C ... pulley groove, 6 ... drive side cylinder chamber, 7 ... metal belt, 8 ... driven pulley, 8A ... fixed side pulley half, 8B ... movable side pulley half, 8C ... pulley groove, 9 ... driven side cylinder chamber, DESCRIPTION OF SYMBOLS 10 ... Flywheel damper, 11 ... V surface, 11a ...
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Description
Claims (6)
- 固定側プーリ半体と可動側プーリ半体とで画成されたプーリ溝を夫々備えるドライブプーリ及びドリブンプーリと、
エレメントを有し、該ドライブプーリ及び該ドリブンプーリのプーリ溝に巻き回されるベルトとを備え、
前記固定側プーリ半体と前記可動側プーリ半体のうち少なくとも前記固定側プーリ半体の前記エレメントとの接触面は、その径方向内側に、径方向外方に向かって前記プーリ溝が広がるように母線が一定の角度で傾斜する一定角度傾斜母線部分が形成され、
前記接触面の径方向外側は、径方向外方に向かって次第に前記プーリ溝が広がりながら傾斜角度が大きくなるように母線が湾曲する湾曲母線部分が形成され、
前記ドライブプーリと前記ドリブンプーリのうちの一方のプーリの前記可動側プーリ半体を該一方のプーリの前記固定側プーリ半体から離隔させることにより、該一方のプーリ溝の幅を増加させ、前記ドライブプーリと前記ドリブンプーリのうちの他方のプーリの前記可動側プーリ半体を該他方のプーリの前記固定側プーリ半体に接近させることにより、該他方のプーリ溝の幅を減少させて変速比を変更するベルト式無段変速機に用いられるベルトのエレメントであって、
前記ドライブプーリと前記ドリブンプーリとに接触する前記ベルトのエレメントの側縁の前記ベルトの径方向外側が、前記一定角度傾斜母線部分に沿う直線形状であり、前記エレメントの側縁の前記ベルトの径方向内側が、径方向内側に向かうに従って先細となり傾斜角度が次第に大きくなるように湾曲する湾曲形状であることを特徴とするベルト式無段変速機の金属ベルト用エレメント。 - 請求項1記載の金属ベルト用エレメントであって、
前記エレメントの側縁の径方向内側の湾曲形状は、前記エレメントの側縁の前記径方向外側の直線形状の傾斜角度から内方に向かうに従って前記プーリと前記エレメントとが接触する接触範囲における最外径の接線角度以上の角度へと滑らかに湾曲することを特徴とするベルト式無段変速機の金属ベルト用エレメント。 - 請求項2記載の金属ベルト用エレメントであって、
前記エレメントの側縁の径方向外側の直線形状の部分は、前記エレメントの板厚方向に延びる排油溝が形成されることを特徴とするベルト式無段変速機の金属ベルト用エレメント。 - 請求項3に記載の金属ベルト用エレメントであって、
前記排油溝は、前記エレメントの直線形状と前記湾曲形状との境界部分を除く前記直線形状の部分に形成されることを特徴とするベルト式無段変速機の金属ベルト用エレメント。 - 請求項1記載の金属ベルト用エレメントであって、
前記エレメントの側縁の径方向外側の直線形状の部分は、前記エレメントの板厚方向に延びる排油溝が形成されることを特徴とするベルト式無段変速機の金属ベルト用エレメント。 - 請求項5に記載の金属ベルト用エレメントであって、
前記排油溝は、前記エレメントの直線形状と前記湾曲形状との境界部分を除く前記直線形状の部分に形成されることを特徴とするベルト式無段変速機の金属ベルト用エレメント。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/399,255 US9279475B2 (en) | 2012-07-06 | 2012-07-06 | Element for metallic belt |
| CN201280073675.8A CN104334917B (zh) | 2012-07-06 | 2012-07-06 | 金属带用元件 |
| DE201211006666 DE112012006666T5 (de) | 2012-07-06 | 2012-07-06 | Element für metallischen Riemen |
| PCT/JP2012/067349 WO2014006744A1 (ja) | 2012-07-06 | 2012-07-06 | 金属ベルト用エレメント |
| JP2014523518A JP5840293B2 (ja) | 2012-07-06 | 2012-07-06 | 金属ベルト用エレメント |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/067349 WO2014006744A1 (ja) | 2012-07-06 | 2012-07-06 | 金属ベルト用エレメント |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014006744A1 true WO2014006744A1 (ja) | 2014-01-09 |
Family
ID=49881533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/067349 Ceased WO2014006744A1 (ja) | 2012-07-06 | 2012-07-06 | 金属ベルト用エレメント |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9279475B2 (ja) |
| JP (1) | JP5840293B2 (ja) |
| CN (1) | CN104334917B (ja) |
| DE (1) | DE112012006666T5 (ja) |
| WO (1) | WO2014006744A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023502624A (ja) * | 2019-11-20 | 2023-01-25 | エスアールアイ インターナショナル | 連続可変トランスミッションのためのベルト |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0724177B2 (ja) | 1986-02-19 | 1995-03-15 | アルプス電気株式会社 | 押釦スイッチ |
| WO2017132411A1 (en) * | 2016-01-29 | 2017-08-03 | Kernbaum Alexander | Compact infinitely variable transmission |
| JP6452668B2 (ja) * | 2016-12-09 | 2019-01-16 | 本田技研工業株式会社 | ベルト式無段変速機の変速制御方法 |
| JP6465100B2 (ja) * | 2016-12-13 | 2019-02-06 | トヨタ自動車株式会社 | ベルト式無段変速機 |
| US11149820B2 (en) * | 2017-03-03 | 2021-10-19 | Aisin Aw Co., Ltd. | Element designing method and power transfer belt |
| JP6859915B2 (ja) * | 2017-10-10 | 2021-04-14 | トヨタ自動車株式会社 | 伝動ベルト |
| WO2019112026A1 (ja) * | 2017-12-07 | 2019-06-13 | アイシン・エィ・ダブリュ株式会社 | 伝達ベルトおよび無段変速機並びにエレメントの設計方法、エレメントの製造方法 |
| JP2020056470A (ja) * | 2018-10-03 | 2020-04-09 | バンドー化学株式会社 | ベルト式変速装置 |
| JP2021036167A (ja) * | 2019-08-30 | 2021-03-04 | 本田技研工業株式会社 | 無段変速機及び無端伝動帯 |
| JP7398282B2 (ja) * | 2020-01-09 | 2023-12-14 | 本田技研工業株式会社 | ベルト式無段変速機及びその製造方法 |
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- 2012-07-06 DE DE201211006666 patent/DE112012006666T5/de not_active Ceased
- 2012-07-06 JP JP2014523518A patent/JP5840293B2/ja active Active
- 2012-07-06 CN CN201280073675.8A patent/CN104334917B/zh active Active
- 2012-07-06 WO PCT/JP2012/067349 patent/WO2014006744A1/ja not_active Ceased
- 2012-07-06 US US14/399,255 patent/US9279475B2/en active Active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023502624A (ja) * | 2019-11-20 | 2023-01-25 | エスアールアイ インターナショナル | 連続可変トランスミッションのためのベルト |
| JP7422875B2 (ja) | 2019-11-20 | 2024-01-26 | エスアールアイ インターナショナル | 連続可変トランスミッションのためのベルト |
| US12007023B2 (en) | 2019-11-20 | 2024-06-11 | Sri International | Belt for continuously variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| US9279475B2 (en) | 2016-03-08 |
| US20150105194A1 (en) | 2015-04-16 |
| JPWO2014006744A1 (ja) | 2016-06-02 |
| CN104334917B (zh) | 2016-03-09 |
| CN104334917A (zh) | 2015-02-04 |
| JP5840293B2 (ja) | 2016-01-06 |
| DE112012006666T5 (de) | 2015-03-19 |
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