JP2012184784A - Continuously variable transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress lowering of power transmission efficiency while securing a supply amount of lubricating oil.SOLUTION: This continuously variable transmission includes: an input shaft 11; an output shaft 12; an input cone 21; an output cone 22; a ring 31; a ring support device 40 moving together with the ring 31 when changing a shift ratio; and an oil guide member 51 which extends from the inside of the lubricating oil in a rotating direction of the ring 31 so that an end part is located on an upper side of an oil surface of the lubricating oil in an oil reservoir part 91 while covering an outer peripheral surface and a side surface of the ring 31 with a gap C and guides the lubricating oil entering into the gap C toward an exhaust port 52 of the end part.

Description

  In the present invention, two conical rotators (cones) arranged on the torque input side and the output side, respectively, one of the rotators is inserted, and an outer peripheral surface is provided on each inclined surface of each rotator. And an annular body (ring) sandwiched between the inner circumferential surface and the inner peripheral surface, and a continuously variable transmission that continuously changes the gear ratio by moving the annular body in the axial direction.

  2. Description of the Related Art Conventionally, a so-called cone ring type continuously variable transmission is known in which a gear ratio is continuously changed between two conical rotating bodies (cones) and an annular body (ring). For example, this type of continuously variable transmission is described in Patent Documents 1 and 2 below. The continuously variable transmission of Patent Document 1 is provided with a guide (fluid medium supply body) that generally follows each outer shape (inclined surface) at the lower part of each rotating body. A technique for supplying lubricating oil by scraping is disclosed. Further, the continuously variable transmission of Patent Document 2 is filled with a lubricating oil in a casing that accommodates each rotating body and annular body, whereby the lubricating performance and cooling performance of the contact portion between the rotating body and the annular body are filled. A technique for improving the above is disclosed.

  In Patent Document 3 below, the lubricating oil is returned to the gear box that houses the gear, and an oil drain hole outlet is provided in the vicinity of the rim side surface of the gear, and the oil hole outlet is used to rotate the gear. Discloses a technique for returning the lubricating oil to the gearbox by using a negative pressure.

Special table 2009-506279 gazette JP 2007-315599 A Japanese Patent Laid-Open No. 9-152020

  However, in the continuously variable transmission of Patent Document 1, the inclined surface on the lower side of each rotating body is substantially covered with a guide in the axial direction, and the inclined surface of each rotating body and the wall surface of the guide are in a wide range. Facing each other. Therefore, in this continuously variable transmission, there is a possibility that a large drag resistance is generated by the lubricating oil contacting the opposed inclined surfaces and wall surfaces, and the power transmission efficiency is greatly reduced. Further, in the continuously variable transmission of Patent Document 2, since the entire rotating member in the casing such as the rotating body or the annular body is filled with the lubricating oil, drag resistance due to the lubricating oil is generated in the whole, and the power There is a possibility that the transmission efficiency is greatly reduced.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a continuously variable transmission having a lubrication structure for improving the disadvantages of the conventional example and suppressing a decrease in power transmission efficiency.

  In order to achieve the above object, the present invention provides a first rotating shaft disposed in the housing as one of the input shaft or the output shaft, and the other in the housing as the other of the input shaft or the output shaft. And a second rotating shaft arranged in parallel with the first rotating shaft, a cone arranged concentrically with the first rotating shaft, and a lower side immersed in the lubricating oil of the oil reservoir in the housing A first rotating body having a shape, a conical second rotating body disposed concentrically with the second rotating shaft, and a portion of the outer peripheral surface of the first rotating body in the axial direction so as to cover the inner peripheral surface side. While being arranged eccentrically with respect to the first rotating body, it is arranged in a state sandwiched between the first rotating body and the second rotating body that rotate with each other, while rotating by frictional force between them. An annular body that transmits power between the first rotating body and the second rotating body, and the annular body can be relatively rotated. An annular body support device that supports the annular body together with the annular body and is movable in an axial direction and along the inclined surfaces of the first rotating body and the second rotating body. Covering the outer peripheral surface and side surfaces of the annular body, extending from the lubricating oil toward the rotational direction of the annular body so that the end portion is located above the oil surface of the lubricating oil of the oil reservoir, And an oil guide member that guides the lubricating oil that has entered the gap toward the discharge port of the end portion.

  Here, it is desirable that the oil guide member has an opening communicating with the gap in the lubricating oil of the oil reservoir.

  In addition, it is preferable that the area of the discharge port is narrower than the area of the gap.

  In the continuously variable transmission according to the present invention, the lubricating oil between the annular body and the oil guide member is sent to the outlet along with the rotation of the annular body and then discharged, and the first rotating body and the second rotating body. Supplied to the contact portion between the ring and the annular body. In this continuously variable transmission, when the lubricating oil is supplied, the lubricating oil can be sent out toward the contact portion only by the rotation of the annular body. Rather than dragging, drag resistance due to lubricating oil is reduced. Further, according to this continuously variable transmission, it is possible to supply the lubricating oil by rotating the annular body by immersing at least the lower side of the first rotating body in the lubricating oil of the oil reservoir. The drag resistance is reduced as compared with the case where the entire first rotating body is immersed in the lubricating oil. As described above, the continuously variable transmission according to the present invention has drag resistance due to lubricating oil while ensuring power transmission performance, lubrication performance, and cooling performance at the contact portion between the first rotating body and the second rotating body and the annular body. The reduction in power transmission efficiency can be suppressed by reducing this.

FIG. 1 is a schematic view of a main part of a continuously variable transmission as viewed from above with an input shaft and an output shaft placed on the same plane. FIG. 2 is a cross-sectional view of the continuously variable transmission cut along the line XX in FIG. 1 and is a diagram illustrating an arrangement in a use state. FIG. 3 is a perspective view showing a ring, a ring support device, and a lubricant guide device. FIG. 4 is an enlarged view of the vicinity of the lubricant guide device of FIG.

  In the continuously variable transmission according to the present invention, two conical rotating bodies (cones) arranged on the torque input side and the output side, respectively, one rotating body is inserted, and each of the rotating bodies is inserted. An annular body (ring) sandwiched between the outer peripheral surface and the inner peripheral surface by an inclined surface, and a so-called cone ring type in which the gear ratio is continuously changed by moving the annular body in the axial direction. It is what is said.

  Therefore, this continuously variable transmission has the 1st rotating shaft arrange | positioned in a housing | casing as one of an input shaft or an output shaft, and the 2nd rotating shaft arrange | positioned in a housing | casing as the other of them. . The second rotating shaft is parallel to the first rotating shaft, and is the same height as the first rotating shaft when viewed from the ground in use (that is, in a vehicle-mounted state if it is a continuously variable transmission for a vehicle). It arrange | positions above the 1st rotating shaft or below the said 1st rotating shaft.

  The continuously variable transmission also includes a conical first rotating body that is concentrically arranged on the first rotating shaft and has a lower part immersed in the lubricating oil in the oil reservoir in the housing, and a second rotation. The conical second rotating body arranged concentrically with the shaft and the first rotating body are arranged eccentrically with respect to the first rotating body so as to cover a part of the outer circumferential surface of the first rotating body in the axial direction. And arranged between the first rotating body and the second rotating body that rotate between each other, and rotating between the first rotating body and the second rotating body while being rotated by the frictional force between them. And an annular body for transmitting power. The first rotating body has an inclined surface on the small diameter side close to the inclined surface on the large diameter side of the second rotating body, and an inclined surface on the large diameter side is close to the inclined surface on the small diameter side of the second rotating body. Arrange. That is, the first rotating body and the second rotating body are arranged in the opposite directions in the axial direction.

  Further, the continuously variable transmission supports the annular body so as to be relatively rotatable, and causes the annular body along the inclined surfaces of the first rotating body and the second rotating body together with the annular body in the axial direction. An annular support device is provided that is movable in the direction. This continuously variable transmission moves the annular body in the same direction with the movement of the annular body support device, whereby the outer diameter ratio of the contact portion between the first rotating body and the second rotating body with the annular body is increased. By changing the speed ratio, the gear ratio (the rotation ratio between the first rotating body and the second rotating body) is changed steplessly.

  Here, the continuously variable transmission has an annular shape from the inside of the lubricating oil so as to cover the outer peripheral surface and the side surface of the annular body with a gap, and the end portion is positioned above the oil surface of the lubricating oil in the oil reservoir. An oil guide member that extends in the direction of rotation of the body and guides the lubricating oil that has entered the gap toward the discharge port of the end, and the lubricating oil in the oil reservoir is provided by the oil guide member. It supplies to the contact part of a 1st and 2nd rotary body and an annular body.

  Embodiments of a continuously variable transmission according to the present invention will be described below in detail with reference to the drawings. The present invention is not limited to the embodiments.

[Example]
An embodiment of a continuously variable transmission according to the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIGS. 1 and 2 represents a continuously variable transmission according to the present embodiment. 1 and 2 show a main part of the continuously variable transmission 1. FIG. FIG. 1 shows the input shaft and the output shaft on the same plane as viewed from above. FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1, and shows a use state of the continuously variable transmission 1 (in this example, a vehicle-mounted state) for convenience of explanation. Here, the first rotating shaft and the first rotating body are illustrated as the input side, and the second rotating shaft and the second rotating body are illustrated as the output side. An arrow A in FIG. 2 represents the rotation direction of the input cone 21 and the ring 31 when power from a power source described later is transmitted, and an arrow B in FIG. 2 represents power from a power source described later. Represents the rotation direction of the output cone 22 when is transmitted.

  The continuously variable transmission 1 includes an input shaft 11 as a first rotating shaft, an output shaft 12 as a second rotating shaft, an input cone 21 as a first rotating body, and an output cone 22 as a second rotating body. And a ring 31 as an annular body is provided inside the housing 90. In this example, the input shaft 11 and the output shaft 12 are each attached to the housing 90 via bearings (not shown). In this example, the input cone 21 is attached so as to rotate integrally with the input shaft 11, and the output cone 22 is attached so as to rotate integrally with the output shaft 12.

  The illustrated output shaft 12 is disposed at a position higher than the input shaft 11 in the use state. In this example, the input cone 21 and the output cone 22 are formed in the same conical shape. Therefore, the lower end portion in the use state of the illustrated output cone 22 is positioned higher than the lower end portion in the use state of the input cone 21. Further, the input cone 21 and the output cone 22 are arranged with their inclined surfaces facing each other, with a predetermined gap (a thickness corresponding to the thickness of the ring 31) therebetween. Accordingly, as shown in FIG. 1, the gap continues from the small diameter side to the large diameter side of the input cone 21 and the output cone 22 at regular intervals.

  The ring 31 is formed so that its inner diameter is larger than, for example, the maximum outer diameter of the input cone 21. The ring 31 is sandwiched between the inclined surface of the input cone 21 and the inclined surface of the output cone 22 that are inserted with their axial directions aligned. The ring 31 has a width (in other words, an axial height) that is shorter than the axial lengths of the input cone 21 and the output cone 22. The continuously variable transmission 1 moves the ring 31 in the axial direction and along the inclined surfaces of the input cone 21 and the output cone 22 so that the rotation ratio between the input cone 21 and the output cone 22 is increased. To change the gear ratio. At that time, the ring 31 moves along the gap between the input cone 21 and the output cone 22 described above. Therefore, the inner peripheral surface of the ring 31 is an inclined surface having an inclination angle with respect to the axial direction equivalent to the inclination angle with respect to the axial direction of the inclined surface of the input cone 21. Similarly, the outer peripheral surface of the ring 31 is an inclined surface having an inclination angle with respect to the axial direction equivalent to the inclination angle with respect to the axial direction of the inclined surface of the output cone 22.

  The ring 31 is supported by a ring support device 40 as an annular body support device (FIGS. 2 and 3). The ring support device 40 includes an arcuate main body 41 whose inner diameter is larger than the maximum outer diameter of the ring 31 and whose width is wider than the width of the ring 31. The illustrated main body 41 is an arc-shaped member of approximately 180 degrees, and is arranged concentrically with the ring 31 so that one end is located above and the lower end is located below in the used state. The main body 41 is not necessarily an arc-shaped member concentric with the ring 31, and is not limited to a member arranged concentrically with the ring 31. For example, the main body 41 may be arranged with its arcuate member eccentric with respect to the ring 31 or may be an elliptical member. The ring support device 40 is provided with a support member 42 that supports the ring 31 from both sides. The support member 42 is formed into a cylindrical shape or a columnar shape, and is disposed on the main body 41 so that the axial direction thereof is orthogonal to the rotation center axis of the ring 31. Here, two support members 42 are disposed at both ends of the main body 41, and are sandwiched from both side surfaces of the ring 31 by the two support members 42. The support member 42 is attached to the main body 41 so as to be rotatable about its own axis, and can roll on the side surface of the ring 31 as the ring 31 rotates.

  The ring support device 40 is held with respect to the housing 90 so as to reciprocate in the axial direction and along the inclined surfaces of the input cone 21 and the output cone 22 by a drive unit (not shown). The drive unit reciprocates the ring 31 together with the ring support device 40 by reciprocating the main body 41 with the power of a drive source such as an electric motor.

  The continuously variable transmission 1 is mounted on a vehicle, for example, and connects an input shaft 11 to a power source (not shown) such as an engine or an electric motor, and connects an output shaft 12 to a drive wheel side (not shown). In this continuously variable transmission 1, when the power of the power source is input to the input shaft 11, the input torque is transmitted to the input cone 21, and through an oil film of lubricating oil between the inclined surface of the input cone 21. Is transmitted to the inner peripheral surface of the ring 31. The ring 31 is rotated by a frictional force (traction force) between the input cone 21 and the inclined surface of the input cone 21, and transmits torque to the inclined surface of the output cone 22 via an oil film of lubricating oil between the ring 31 and the outer peripheral surface. The output cone 22 is rotated by a frictional force with the outer peripheral surface of the ring 31. The torque of the output cone 22 is transmitted to the output shaft 12 and transmitted to the drive wheel side.

  As described above, the continuously variable transmission 1 is a transmission that transmits power by the shear stress of the lubricating oil. The lubricating oil (so-called traction oil) is used as the contact portion between the input cone 21 and the output cone 22 and the ring 31. (Hereinafter referred to as “power transmission unit”). For this reason, the housing 90 of the continuously variable transmission 1 is formed with an oil storage portion 91 for storing the lubricating oil at a lower portion in the use state. While the input cone 21 is immersed in the lubricating oil in the oil reservoir 91, the output cone 22 is not immersed. Due to the position of the oil surface of the lubricating oil in the oil reservoir 91, drag resistance due to the lubricating oil in the oil reservoir 91 does not occur in the output cone 22. Therefore, the continuously variable transmission 1 can suppress a decrease in torque transmission efficiency in the output cone 22.

  In the continuously variable transmission 1, it is possible to scoop up the lubricating oil in the oil reservoir 91 upward as the input cone 21 and the ring 31 rotate. However, since the continuously variable transmission 1 can reduce the drag resistance due to the lubricating oil of the oil reservoir 91 accompanying the rotation of the ring 31 because the ring 31 has a narrow width, power transmission and lubrication to the power transmission unit are possible. There is a possibility that it is difficult to supply the amount of lubricating oil necessary for cooling.

  Therefore, the continuously variable transmission 1 is provided with a lubricating oil guide device that guides the lubricating oil in the oil reservoir 91 to the power transmission unit.

  This exemplary lubricant guide device includes an oil guide member 51 (FIGS. 2 to 4). The oil guide member 51 covers the outer circumferential surface and the respective side surfaces of the ring 31 with a gap C therebetween, and the lubrication oil 51 is lubricated so that one end is positioned above the oil surface of the lubricating oil in the oil reservoir 91. Lubricating oil that extends from the oil in the direction of rotation of the ring 31 and that has entered the gap C between the ring 31 and the rotation of the ring 31 is guided toward the discharge port 52 at the end. It is a member to do. For the gap C, the size between the outer peripheral surface of the ring 31 and the inner peripheral surface of the oil guide member 51 is matched with the size between the side surface of the ring 31 and the side surface of the oil guide member 51. You may change the size of each.

  The lubricating oil guided to the end portion is discharged from a discharge port 52 formed between the ring 31 and the oil guide member 51. This lubricating oil guide device also supplies the discharged lubricating oil to the power transmission unit. Therefore, the discharge port 52 (that is, one end portion of the oil guide member 51) is provided at a height at which the discharged lubricating oil reaches the power transmission unit. The height is determined by various requirements such as the outer diameter and rotation speed of the ring 31, the size of the gap C between the ring 31 and the oil guide member 51, the viscosity of the lubricating oil, and the like. It is set by experiment or simulation according to the specification of 1 or the specification of the vehicle to be mounted. For example, the height of the discharge port 52 is preferably provided below the rotation center axis of the input cone 21. Thereby, in this continuously variable transmission 1, since the oil level of the lubricating oil in the oil reservoir 91 is adjusted to a position lower than the height of the discharge port 52, the lower part of the input cone 21 is added to the lubricating oil. Only the side can be immersed. Therefore, the continuously variable transmission 1 does not mean that the entire input cone 21 is immersed in the lubricating oil in the oil reservoir 91, so the oil is stored in the oil reservoir 91 due to the rotation of the input cone 21 and the ring 31. Drag resistance can be reduced as much as possible. Here, when the ring 31 is located on the large-diameter side of the input cone 21, the illustrated discharge port 52 is highest from the ground. For this reason, it is preferable to set the height of the discharge port 52 and the height of the oil surface of the lubricating oil in the oil reservoir 91 with reference to the time when the ring 31 is located on the large diameter side of the input cone 21.

  In this illustration, the oil guide member 51 has the other end (the end immersed in the lubricating oil of the oil reservoir 91) attached to the ring support device 40. Therefore, the oil guide member 51 can move together with the ring 31 and the ring support device 40.

  The gap C between the ring 31 and the oil guide member 51 is easy to directly enter the lubricating oil if the gap is large. On the other hand, if the gap is too large, the amount of lubricating oil in the gap C is large. Thus, drag resistance due to the lubricating oil in the gap C accompanying the rotation of the ring 31 increases. On the other hand, if the gap C is small, the amount of lubricating oil in the gap C is small, and the drag resistance due to the lubricating oil in the gap C accompanying the rotation of the ring 31 is small, but on the other hand, the gap is small. If it is too long, it will be difficult for the lubricating oil to enter directly.

  Therefore, in this embodiment, first, the oil guide member 51 is formed so that the size of the gap C is reduced in order to reduce drag resistance due to the lubricating oil in the gap C. And the inflow property of the lubricating oil into the gap C corresponds to the opening 53 formed in the oil guide member 51 (FIGS. 2 to 4).

  The opening 53 is a lubricant supply port for guiding the lubricant in the oil reservoir 91 to the gap C between the ring 31 and the oil guide member 51. The opening 53 is formed in a portion immersed in the lubricating oil on the outer peripheral surface of the oil guide member 51, and the outer peripheral surface side and the inner peripheral surface side (gap C side) of the oil guide member 51 are communicated. In this example, the ring support device 40 is formed on the connection side.

  The opening 53 is for introducing the lubricating oil in the oil reservoir 91 into the gap C by using the negative pressure generated by the rotation of the ring 31. Therefore, a protrusion 54 that protrudes toward the outer peripheral surface of the ring 31 is provided in a portion where the opening 53 is formed on the inner peripheral surface of the oil guide member 51 (FIGS. 2 and 4). As a result, the gap between the projection 54 and the outer peripheral surface of the ring 31 is narrowed. Therefore, when the ring 31 is rotating, the flow rate of the lubricating oil increases between them, and negative pressure is generated on the gap C side of the opening 53. appear. The lubricating oil in the oil reservoir 91 is guided by the negative pressure due to the rotation of the ring 31 and is sucked into the gap C from the opening 53. The sucked lubricating oil is sucked up toward the discharge port 52 by the rotation of the ring 31. Here, since the projection 54 is provided for the purpose of generating negative pressure, the portion of the opening 53 may be formed in a mountain shape or the like having the largest amount of protrusion. The flow of the lubricating oil is difficult to be hindered.

  By the way, as described above, in the continuously variable transmission 1, the height of the discharge port 52 is set so that the discharged lubricating oil is supplied to the power transmission unit. For this reason, in the continuously variable transmission 1, the height of the discharge port 52 is set in consideration of the case where the ring 31 rotates at a low speed. That is, when the ring 31 is rotating at a low speed, the flow rate of the lubricating oil in the gap C is low, and there is a possibility that the lubricating oil may not reach the power transmission portion. It is necessary to set it higher. However, when the discharge port 52 is provided at a high position, it is preferable to raise the oil level of the lubricating oil in the oil reservoir 91 in order to invite the flow of the lubricating oil to the discharge port 52. As a result, the amount of the input cone 21 and the ring 31 immersed in the lubricating oil of the oil storage unit 91 increases, which causes an increase in drag resistance, which is not preferable.

  Therefore, in the continuously variable transmission 1, the area of the discharge port 52 is narrower than the area of the gap C, and the flow rate of the lubricant discharged from the discharge port 52 is increased, so that the discharged lubricant oil flies. Increase distance. Thereby, in this continuously variable transmission 1, the lubricating oil discharged | emitted from the discharge port 52 becomes easy to reach a power transmission part compared with before narrowing the area of the discharge port 52. FIG. Therefore, the continuously variable transmission 1 can reliably supply the lubricating oil to the power transmission portion even when the ring 31 is rotating at a low speed. Further, the continuously variable transmission 1 can reduce the height of the discharge port 52 after securing the amount of lubricating oil supplied to the power transmission unit when the ring 31 is rotating at a low speed. It is also possible to reduce drag resistance due to a decrease in the oil level of the 91 lubricant. The area of the discharge port 52 and the area of the gap C are, for example, the area of a cross section cut in the radial direction (the radial direction of the ring 31 and the oil guide member 51).

  Here, the reduction of the discharge port 52 is, for example, tilting the end portion of the oil guide member 51 on the discharge port 52 side toward the outer peripheral surface side of the ring 31, or the outer peripheral surface of the ring 31 on the inner peripheral surface of the end portion. For example, a narrowed portion may be formed by providing a protruding portion toward the surface, and this may be realized.

  As described above, the continuously variable transmission 1 is configured such that the oil guide member 51 of the lubricant guide device causes the oil in the oil reservoir 91 to flow from the opening 53 to the ring 31 with a negative pressure accompanying the rotation of the ring 31. The lubricating oil in the gap C can be sent from the discharge port 52 to the power transmission unit. Further, in the continuously variable transmission 1, since the flow rate of the lubricating oil is increased by narrowing the discharge port 52, the lubricating oil discharged from the discharge port 52 is used as a power transmission unit even when the ring 31 is rotating at a low speed. Can be supplied. Therefore, this continuously variable transmission 1 can obtain power transmission performance, lubrication performance and cooling performance in the power transmission section.

  Further, in the continuously variable transmission 1, since the lubricating oil can be sucked into the gap C using negative pressure, it is not necessary to store an excessive amount of lubricating oil in the gap C. The drag resistance due to the lubricating oil in the gap C can be reduced. At that time, the lubricating oil can be drawn into the gap C only by the rotation of the ring 31 and can be guided to the discharge port 52 and sent to the power transmission unit, so that the lubricating oil is sent by scraping the input cone 21 and the like. Drag resistance is reduced more than. Accordingly, the oil guide member 51 only needs to cover the ring 31, and thus the size thereof can be reduced. Furthermore, in this continuously variable transmission 1, the oil level of the lubricating oil in the oil reservoir 91 can be lowered as the flying distance of the lubricating oil by the throttle portion of the discharge port 52 increases, so that the oil storage The amount of lubricating oil in the portion 91 can be reduced. Further, the continuously variable transmission 1 only needs to immerse only the lower side of the input cone 21 and the ring 31 in the lubricating oil in the oil reservoir 91 as the oil level decreases, and outputs to the lubricating oil. Since it is not necessary to immerse the cone 22, drag resistance due to the lubricating oil in the oil reservoir 91 is reduced.

  As described above, the continuously variable transmission 1 according to the present embodiment suppresses a decrease in power transmission efficiency by reducing drag resistance due to lubricating oil while ensuring power transmission performance, lubrication performance, and cooling performance in the power transmission section. Can do.

DESCRIPTION OF SYMBOLS 1 Continuously variable transmission 11 Input shaft 12 Output shaft 21 Input cone 22 Output cone 31 Ring 40 Ring support device 51 Oil guide member 52 Discharge port 53 Opening 54 Protruding part 90 Housing 91 Oil storage part C Gap

Claims (3)

A first rotating shaft disposed in the housing as one of the input shaft or the output shaft;
A second rotating shaft disposed in the casing as the other of the input shaft or the output shaft and disposed in parallel with the first rotating shaft;
A conical first rotating body disposed concentrically on the first rotating shaft, and having the lower side immersed in the lubricating oil of the oil reservoir in the housing;
A conical second rotating body disposed concentrically with the second rotating shaft;
The first rotating body and the second rotating body are arranged so as to be eccentric with respect to the first rotating body so as to cover a part of the outer peripheral surface of the first rotating body in the axial direction on the inner peripheral surface side. An annular body that is arranged in a state sandwiched between the body and that transmits power between the first rotating body and the second rotating body while rotating by friction between them;
An annular body that supports the annular body in a relatively rotatable manner and is movable in the axial direction together with the annular body and in a direction in which the annular body is along the inclined surfaces of the first rotating body and the second rotating body. A support device;
Covering the outer peripheral surface and the side surface of the annular body with a gap, and from the inside of the lubricating oil toward the rotational direction of the annular body so that the end portion is located above the oil surface of the lubricating oil of the oil reservoir. An oil guide member that extends and guides the lubricating oil that has entered the gap toward the outlet of the end;
A continuously variable transmission comprising:   The continuously variable transmission according to claim 1, wherein the oil guide member has an opening communicating with the gap in the lubricating oil of the oil reservoir.   The continuously variable transmission according to claim 1 or 2, wherein an area of the discharge port is smaller than an area of the gap.

Images