Drive pulley and weight member for continuously variable transmission

Abstract

To provide a drive pulley and a weight member for a continuously variable transmission that can arbitrarily expand the ratio and change the shifting characteristics in the expanded ratio range, thereby improving the feeling during high-speed operation.SOLUTION: A weight roller 8 comprises a core member 8a having a predetermined weight and an outer member 8b that covers and encloses the outside of the core member 8a. The center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b are different. It slides from an inner radial position to an outer radial position by centrifugal force, and is subjected at the outer radial position to further centrifugal force so as to rotate and thus enable a movable sheave 6 to approach a fixed sheave 5.SELECTED DRAWING: Figure 14

Description

[Technical field]

[0001] The present invention relates to a drive pulley and a weight member for a continuously variable transmission capable of transmitting power by entraining an endless V-belt between a drive pulley and a driven pulley. [Background technology]

[0002] A continuously variable transmission used in a scooter-type motorcycle includes a drive pulley that rotates when driven by an engine, a driven pulley with an endless V-belt stretched between the drive pulley and the driven pulley, and a weight member that can slide from an inner diameter position to an outer diameter position when centrifugal force is applied. In the process in which the weight member slides from the inner diameter position to the outer diameter position due to centrifugal force, the movable sheave is brought close to the fixed sheave, thereby changing the effective diameter of the drive pulley and enabling continuous speed change (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-203004 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, the movable sheave is brought close to the fixed sheave during the process in which the weight member slides from the inner diameter position to the outer diameter position, so that the ratio cannot be expanded arbitrarily, and furthermore, it is difficult to change the shift characteristics in the expanded ratio range. Therefore, the applicant has earnestly studied how to expand the ratio arbitrarily and change the shift characteristics in the expanded ratio range to improve the feeling at high speeds.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a drive pulley and weight member for a continuously variable transmission that can arbitrarily expand the ratio and change the speed change characteristics in the expanded ratio range to improve the feeling at high speeds. [Means for solving the problem]

[0006] The invention described in claim 1 is a sheave having a fixed tapered surface, a movable sheave having a movable tapered surface opposed to the fixed tapered surface of the fixed sheave, and an endless V-belt is wound between the fixed tapered surface and the movable tapered surface, and the movable sheave is rotatable together with the fixed sheave and can approach or move away from the fixed sheave, and a weight member that brings the movable sheave close to the fixed sheave in the process of sliding from an inner diameter position to an outer diameter position by applying centrifugal force, and the weight member is arranged between the movable sheave and a driven pulley. A drive pulley for a continuously variable transmission capable of transmitting power by means of an endless V-belt suspended therearound, the weight member comprising a core member having a predetermined weight and an outer member covering and enclosing the outside of the core member, and configured such that the center of gravity of the core member and the center of gravity of the outer member are different from each other, and characterized in that the weight member slides from the inner diameter position to the outer diameter position by centrifugal force, and rotates at the outer diameter position when further centrifugal force is applied thereto, thereby bringing the movable sheave closer to the fixed sheave.

[0007] The invention described in claim 2 is characterized in that, in the drive pulley for a continuously variable transmission described in claim 1, it is provided with a receiving member that is maintained in contact with the weight member and can receive a reaction force as the weight member slides from the inner diameter position to the outer diameter position, and the weight member is formed with a first contact plane that contacts the receiving member when sliding from the inner diameter position to the outer diameter position, and a second contact plane that contacts the receiving member after rotating at the outer diameter position.

[0008] The invention described in claim 3 is a drive pulley for a continuously variable transmission described in claim 1, characterized in that the weight member makes the center of gravity of the core member and the center of gravity of the outer member different by setting the inclusion of the core member in the outer member at a desired position.

[0009] According to a fourth aspect of the present invention, in the drive pulley for a continuously variable transmission according to the first aspect, the weight member has a weight of the core member greater than that of the outer member.

[0010] The invention according to claim 5 is the drive pulley for a continuously variable transmission according to claim 4, wherein the weight member has a core member made of a metal material and an outer member made of a resin material.

[0011] The invention described in claim 6 is a weight member for a continuously variable transmission that is attached to a drive pulley of a continuously variable transmission capable of transmitting power by suspending an endless V-belt between a drive pulley and a driven pulley, and that can change the effective diameter of the drive pulley by sliding from an inner diameter position to an outer diameter position when centrifugal force is applied, thereby bringing a movable sheave in the drive pulley closer to a fixed sheave.The weight member comprises a core member having a predetermined weight and an outer member that covers and contains the outside of the core member, and is configured such that the center of gravity of the core member and the center of gravity of the outer member are different, and the weight member slides from the inner diameter position to the outer diameter position by centrifugal force, and rotates at the outer diameter position when further centrifugal force is applied, thereby bringing the movable sheave closer to the fixed sheave.

[0012] The invention described in claim 7 is characterized in that, in the weight member for a continuously variable transmission described in claim 6, the drive pulley is provided with a receiving member that is maintained in contact with the weight member and can receive a reaction force as the weight member slides from the inner diameter position to the outer diameter position, and is formed with a first contact plane that contacts the receiving member when sliding from the inner diameter position to the outer diameter position, and a second contact plane that contacts the receiving member after rotating at the outer diameter position.

[0013] The invention described in claim 8 is characterized in that, in the weight member for a continuously variable transmission described in claim 6, the inclusion of the core member in the outer member is set at a desired position, thereby making the center of gravity of the core member different from the center of gravity of the outer member.

[0014] The invention according to claim 9 is characterized in that in the weight member for a continuously variable transmission according to claim 6, the core member is heavier than the outer member.

[0015] The invention as set forth in claim 10 is the weight member for a continuously variable transmission as set forth in claim 9, characterized in that the core member is made of a metal material and the outer member is made of a resin material. Effect of the Invention

[0016] According to the invention of claims 1 and 6, the weight member comprises a core member having a predetermined weight, and an outer member that covers and encloses the outside of the core member, and is configured so that the center of gravity of the core member and the center of gravity of the outer member are different. The weight member slides from the inner diameter position to the outer diameter position due to centrifugal force, and further centrifugal force is applied at the outer diameter position, causing it to rotate and bring the movable sheave closer to the fixed sheave. This makes it possible to arbitrarily expand the ratio and change the shifting characteristics in the expanded ratio range to improve the feeling at high speeds.

[0017] According to the invention of claims 2 and 7, the drive pulley is provided with a receiving member that is maintained in contact with the weight member and can receive a reaction force as the weight member slides from the inner diameter position to the outer diameter position, and is formed with a first contact plane that contacts the receiving member when sliding from the inner diameter position to the outer diameter position, and a second contact plane that contacts the receiving member after rotating at the outer diameter position, so that the receiving member can be brought into stable contact with the weight member.

[0018] According to the inventions of claims 3 and 8, the weight member makes the center of gravity of the core member different from that of the outer member by setting the inclusion of the core member in the outer member at a desired position, so that the amount of deviation and relative positions of the center of gravity of the core member and the center of gravity of the outer member can be set with high precision.

[0019] According to the invention of claims 4 and 9, since the weight member has a core member heavier than the outer member, the weight member can be reliably rotated at the outer diameter position.

[0020] According to the invention of claims 5 and 10, the weight member has a core member made of a metal material and an outer member made of a resin material, so that the core member can easily be made heavier than the outer member and wear of the weight member during sliding can be suppressed. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a schematic diagram showing a continuously variable transmission to which a drive pulley according to an embodiment of the present invention is applied; [Diagram 2] Three-view drawing of the drive pulley [Diagram 3] FIG. 2 is a perspective view of the drive pulley seen from the movable sheave side. [Figure 4] FIG. 2 is a perspective view of the drive pulley seen from the fixed sheave side. [Diagram 5] FIG. 2 is an exploded perspective view of the drive pulley seen from one direction. [Figure 6] FIG. 4 is an exploded perspective view of the drive pulley seen from another direction. [Figure 7] FIG. 2 is a two-sided view showing a movable sheave in the drive pulley. [Figure 8] Cross-sectional view of line VIII-VIII in FIG. [Figure 9] FIG. 3 is a three-view diagram showing a receiving member in the drive pulley. [Figure 10] Cross-sectional view of line XX in FIG. [Figure 11] FIG. 4 is a perspective view showing a weight roller (weight member) in the driving pulley; [Figure 12] FIG. 4 is a cross-sectional view showing the weight roller in an inner diameter position. [Figure 13] FIG. 4 is a cross-sectional view showing the weight roller in an outer diameter position. [Figure 14] FIG. 11 is a cross-sectional view showing the weight roller rotated at the outer diameter position. [Figure 15] Graph showing the speed change characteristics of the weight roller according to the present embodiment and a conventional weight roller [Figure 16] FIG. 13 is a perspective view showing a weight roller (weight member) according to another embodiment of the present invention; [Figure 17] FIG. 13 is a perspective view showing a weight roller (weight member) according to still another embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The drive pulley according to this embodiment is applied to a continuously variable transmission (a power transmission mechanism that continuously changes the gear ratio using a mechanism other than gears) in a scooter-type motorcycle. Such a continuously variable transmission continuously changes the gear ratio of the vehicle, and is configured with a drive pulley 1, a driven pulley 2, an endless V-belt 3, and a centrifugal clutch section K, as shown in Fig. 1.

[0023] The drive pulley 1 is connected to an input shaft 4 (crankshaft) and configured to rotate together with the input shaft 4 when the vehicle engine (not shown) is driven. An endless V-belt 3 is stretched between the drive pulley 2 and the driven pulley 1, and the driven pulley 2 is connected to an output shaft L capable of rotating a drive wheel (not shown). When the vehicle engine is driven and the drive pulley 1 rotates, the rotational force is transmitted to the driven pulley 2 via the endless V-belt 3, causing the drive shaft to rotate.

[0024] The drive pulley 1 in this embodiment is capable of transmitting power by having an endless V-belt 3 suspended between it and the driven pulley 2, and is configured with a fixed sheave 5 having a fixed side tapered surface 5a, a movable sheave 6 having a movable side tapered surface 6a, a receiving member 7, a weight roller 8 (weight member), and a connecting member 9 that connects the fixed sheave 5 and the movable sheave 6, as shown in Figures 1 to 6.

[0025] The fixed sheave 5 is made of a metal molded product having a circular shape in a plan view, has a fixed side tapered surface 5a that is inclined from the inner diameter side to the outer diameter side, and has a center hole 5b in its center through which the connecting member 9 can be inserted. The connecting member 9 is made of a tubular member through which the input shaft 4 can be inserted, and its tip side is connected to the fixed sheave 5, and is formed with splines that fit with splines formed on the outer circumferential surface of the input shaft 4, so that the connecting member 9 and the fixed sheave 5 can rotate as the input shaft 4 rotates.

[0026] The movable sheave 6 is made of a metal molded product having a circular shape in a plan view, has a movable-side tapered surface 6a inclined from the inner diameter side toward the outer diameter side, and has a center hole 6c in its center through which a connecting member 9 can be inserted, and a sleeve 6d is formed on the opening edge of the center hole 6c. Then, as shown in FIG. 1, the connecting member 9 is inserted into the sleeve 6d, the crankshaft 4 (input shaft) is inserted into the connecting member 9, and the tip of the crankshaft 4 is tightened with a nut to assemble. As a result, the movable sheave 6 and the fixed sheave 5 can rotate together due to the tightening of the crankshaft 4 by the nut and the friction of the endless V-belt 3, and the movable sheave 6 can move toward or away from the fixed sheave 5.

[0027] The fixed sheave 5 and the movable sheave 6 are attached so that the fixed tapered surface 5a and the movable tapered surface 6a face each other, and an endless V-belt 3 is wound between the fixed tapered surface 5a and the movable tapered surface 6a. As a result, when the fixed sheave 5 and the movable sheave 6 rotate, power is transmitted to the driven pulley 2 via the endless V-belt 3, and the effective diameter of the drive pulley 1 can be changed by the movable sheave 6 approaching or moving away from the fixed sheave 5. That is, when the movable sheave 6 approaches the fixed sheave 5, the effective diameter of the drive pulley 1 becomes large and the ratio (speed ratio) becomes high, and when the movable sheave 6 moves away from the fixed sheave 5, the effective diameter of the drive pulley 1 becomes small and the ratio becomes low.

[0028] Furthermore, on the back surface of the movable sheave 6 (the surface opposite to the surface on which the movable-side tapered surface 6a is formed), a plurality of sliding surfaces 6b (six in this embodiment) are formed extending radially from the center outward, and a weight roller 8 (weight member) is disposed on each sliding surface 6b, as shown in Figures 7 and 8. As shown in Figure 8, the sliding surface 6b is made up of a surface inclined at a predetermined angle, and has an upward gradient from the inner diameter side to the outer diameter side.

[0029] The weight rollers 8 (weight members) are adapted to slide from an inner diameter position (see FIG. 12) to an outer diameter position (see FIG. 13) when centrifugal force is applied, thereby moving the movable sheave 6 in the drive pulley 1 closer to the fixed sheave 5, thereby changing (widening) the effective diameter of the drive pulley 1, and are housed on the sliding surface 6b of the movable sheave 6. That is, when the engine is driven and the drive pulley rotates, the centrifugal force causes the weight rollers 8 to slide upward on the sliding surface 6b, and the load generated by this causes the movable sheave 6 to be pressed closer to the fixed sheave 5.

[0030] The receiving member 7 consists of a member attached to cover the sliding surface 6b of the movable sheave 6, and is capable of receiving a reaction force by maintaining a state of contact with the weight roller 8 (weight member) as the weight roller 8 slides from the inner diameter position to the outer diameter position. As shown in Figures 9 and 10, the receiving member 7 has a central hole 7a formed in the center through which the input shaft 4 is inserted, and a receiving surface 7b consisting of multiple (six in this embodiment) flat surfaces facing the sliding surface 6b of the movable sheave 6.

[0031] 12 to 14, the receiving surfaces 7b face the sliding surfaces 6b to form spaces for slidably accommodating the weight rollers 8, and are adapted to maintain contact with the weight rollers 8 when the weight rollers 8 are in the inner diameter position and the outer diameter position, and in the process of sliding between the inner diameter position and the outer diameter position. This allows the receiving member 7 to receive, at the receiving surface 7b, the reaction force generated when the weight rollers 8 slide from the inner diameter position to the outer diameter position and press the movable sheave 6.

[0032] Here, as shown in FIG. 11, the weight roller 8 according to this embodiment comprises a core member 8a having a predetermined weight, and an outer member 8b that covers and encloses the outside of the core member 8a, and is configured so that the center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b are different (shifted). As shown in FIGS. 12 and 13, the weight roller 8 slides from the inner diameter position to the outer diameter position due to centrifugal force, and as shown in FIG. 14, when further centrifugal force is applied at the outer diameter position, the weight roller 8 can rotate and bring the movable sheave 6 closer to the fixed sheave 5.

[0033] Specifically, the center of gravity G1 of the core member 8a is made different from the center of gravity G2 of the outer member 8b by setting the inclusion of the core member 8a in the outer member 8b at a desired position (eccentric position). Also, the weight roller 8 is made such that the inner core member 8a is heavier than the outer outer member 8b, and for example, the core member 8a can be made of a metal material such as iron, and the outer member 8b can be made of a resin material with excellent wear resistance.

[0034] As a result, when further centrifugal force is applied to the weight roller 8 that has slid from the inner diameter position to the outer diameter position due to centrifugal force, a rotational force (rotational moment) is generated due to the misalignment of the center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b, which rotates in the direction of the arrow as shown in Figure 14, bringing the movable sheave 6 even closer to the fixed sheave 5. Therefore, the movable sheave 6 is not only displaced as the weight roller 8 slides from the inner diameter position to the outer diameter position, but is also further displaced as the weight roller 8 rotates at the outer diameter position.

[0035] 11, the weight roller 8 according to this embodiment is formed with a first contact plane F1 that comes into contact with the receiving surface 7b of the receiving member 7 when sliding from the inner diameter position to the outer diameter position, and a second contact plane F2 that comes into contact with the receiving surface 7b of the receiving member 7 after rotating at the outer diameter position. As a result, when the weight roller 8 slides from the inner diameter position to the outer diameter position, the first contact plane F1 comes into contact with the receiving surface 7b and can receive a reaction force, and the weight roller 8 rotates at the outer diameter position and the second plane F2 comes into contact with the receiving surface 7b, so that further rotation after rotating a predetermined angle can be restricted.

[0036] Next, the operation of the drive pulley 1 and the weight roller 8 according to this embodiment will be described with reference to FIGS. When the vehicle engine is stopped, the weight roller 8 is in the inner diameter position, with the receiving surface 7b in contact with the first contact plane F1, as shown in Fig. 12. When the vehicle engine is driven and the input shaft 4 rotates, thereby rotating the drive pulley 1, the weight roller 8 in the inner diameter position slides outward on the sliding surface 6b due to centrifugal force.

[0037] In this way, in the process in which the weight roller 8 slides on the sliding surface 6b, a load is generated in the direction pressing the movable sheave 6, and the receiving surface 7b is maintained in contact with the first contact plane F1, receiving a reaction force. Therefore, the movable sheave 6 gradually approaches the fixed sheave 5, the effective diameter of the drive pulley 1 continuously increases, and the ratio changes from a low ratio to a high ratio.

[0038] After that, the weight roller 8 reaches the outer diameter position, while the contact state of the receiving surface 7b with the first contact plane F1 is maintained, as shown in Fig. 13. At this time, the ratio is set to the top ratio, and when further centrifugal force is applied, a rotational force (rotational moment) is generated due to the misalignment of the center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b, and as shown in Fig. 14, it rotates in the direction of the arrow, further pressing the movable sheave 6 and bringing it closer to the fixed sheave 5 side.

[0039] When the weight roller 8 rotates a predetermined angle, the receiving surface 7b comes into contact with the second contact plane F2, restricting further rotation. The rotation of the weight roller 8 causes the ratio to become an over-top ratio. In this way, the weight roller 8, which is located at the outer diameter position, rotates to bring the movable sheave 6 even closer to the fixed sheave 5, thereby expanding the ratio and changing the speed change characteristics within the expanded ratio range.

[0040] That is, according to the weight roller 8 of this embodiment, as shown by graph γ in Fig. 15, the ratio can be expanded compared to that of graph α, and the speed change characteristics can be changed in a region of the ratio expanded compared to that of graph β. In Fig. 15, graph α shows the speed change characteristics when a simple cylindrical weight roller that does not have a flat surface in contact with the receiving surface 7b is used, and graph β shows the speed change characteristics when a cylindrical weight roller that does not rotate but has a flat surface in contact with the receiving surface 7b is used.

[0041] According to the above embodiment, the weight roller 8 (weight member) comprises a core member 8a having a predetermined weight, and an outer member 8b that covers and encloses the outside of the core member 8a, and is configured so that the center of gravity G1 of the core member 8a is different from the center of gravity G2 of the outer member 8b, and slides from the inner diameter position to the outer diameter position by centrifugal force, and further centrifugal force is applied at the outer diameter position, causing it to rotate and bring the movable sheave 6 closer to the fixed sheave 5. Therefore, the ratio can be expanded arbitrarily, and the shifting characteristics can be changed in the expanded ratio range to improve the feeling at high speeds.

[0042] In addition, the drive pulley 1 of this embodiment is equipped with a receiving member 7 that is maintained in contact with the weight roller 8 and can receive a reaction force as the weight roller 8 slides from the inner diameter position to the outer diameter position, and is formed with a first contact plane F1 that contacts the receiving member 7 when sliding from the inner diameter position to the outer diameter position, and a second contact plane F2 that contacts the receiving member 7 after rotating at the outer diameter position, so that the receiving member 7 can be brought into stable contact with the weight roller 8.

[0043] Furthermore, in the weight roller 8 of this embodiment, the inclusion of the core member 8a in the outer member 8b is set at a desired position, thereby making the center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b different, and therefore the deviation amount and relative position of the center of gravity G1 of the core member 8a and the center of gravity G2 of the outer member 8b can be set with high precision.

[0044] Furthermore, in the weight roller 8 according to this embodiment, the core member 8a is heavier than the outer member 8b, so that the weight roller 8 can reliably rotate at the outer diameter position. In particular, in the weight roller 8 according to this embodiment, the core member 8a is made of a metal material and the outer member 8b is made of a resin material, so that the core member 8a can be easily made heavier than the outer member 8b, and wear of the weight roller 8 during sliding can be suppressed.

[0045] Although the present embodiment has been described above, the present invention is not limited to this. For example, as shown in FIG. 16, the weight roller 8 may have a core member 8a made of a tubular member or a member of another shape, or as shown in FIG. 17, in addition to the first contact plane F1 and the second contact plane F2, a third contact plane F3 that can come into contact with the receiving surface 7b may be formed, or multiple contact planes may be formed. [Industrial Applicability]

[0046] The present invention can also be applied to devices with different external shapes or devices with added functions, etc., so long as they have the same gist as the present invention. [Explanation of symbols]

[0047] 1 Drive pulley 2 Driven pulley 3. Endless V-belt 4 Input shaft (crankshaft) 5 Fixed sheave 5a Fixed side tapered surface 5b Center hole 6 Movable sheave 6a Movable side tapered surface 6b Sliding surface 6c center hole 6d Sleeve 7 Supporting member 7a Center hole 7b Receiving surface 8 Weight roller (weight member) 8a Core member 8b Outer member 9 Connecting members L Output shaft K Clutch section G1, G2 center of gravity position F1 1st contact plane F2 2nd contact plane

Claims

1. a fixed sheave having a fixed side tapered surface; a movable sheave having a movable side tapered surface opposed to the fixed side tapered surface of the fixed sheave, and an endless V-belt is wound between the fixed side tapered surface and the movable side tapered surface, the movable sheave being rotatable together with the fixed sheave and being movable toward or away from the fixed sheave; a weight member that brings the movable sheave closer to the fixed sheave as the movable sheave slides from an inner diameter position to an outer diameter position due to the application of centrifugal force; A drive pulley for a continuously variable transmission, the drive pulley being capable of transmitting power by having the endless V-belt suspended between the drive pulley and a driven pulley, The weight member is A core member having a predetermined weight; an outer member that covers and includes the outside of the core member; and configured such that the center of gravity of the core member and the center of gravity of the outer member are different, the movable sheave can be moved from the inner diameter position to the outer diameter position by centrifugal force, and can be rotated by being applied with further centrifugal force at the outer diameter position to bring the movable sheave closer to the fixed sheave.

2. 2. The drive pulley for a continuously variable transmission as claimed in claim 1, further comprising a receiving member that is maintained in contact with the weight member and can receive a reaction force as the weight member slides from the inner diameter position to the outer diameter position, and the weight member is formed with a first contact plane that contacts the receiving member when sliding from the inner diameter position to the outer diameter position, and a second contact plane that contacts the receiving member after rotating at the outer diameter position.

3. 2. The drive pulley for a continuously variable transmission according to claim 1, wherein the weight member is configured to set the inclusion of the core member in the outer member at a desired position, thereby making the center of gravity of the core member different from the center of gravity of the outer member.

4. 2. The drive pulley for a continuously variable transmission according to claim 1, wherein the weight member has a weight of the core member greater than that of the outer member.

5. 5. The drive pulley for a continuously variable transmission according to claim 4, wherein said weight member has said core member made of a metallic material and said outer member made of a resin material.

6. A weight member for a continuously variable transmission, which is attached to a drive pulley of the continuously variable transmission capable of transmitting power by suspending an endless V-belt between a drive pulley and a driven pulley, and which is slidable from an inner diameter position to an outer diameter position when centrifugal force is applied thereto, thereby bringing a movable sheave of the drive pulley closer to a fixed sheave, thereby changing an effective diameter of the drive pulley, A core member having a predetermined weight; an outer member that covers and includes the outside of the core member; a center of gravity of the core member and a center of gravity of the outer member being different from each other, the center of gravity of the core member being different from that of the outer member ...

7. The weight member for a continuously variable transmission as described in claim 6, characterized in that the drive pulley is provided with a receiving member that is maintained in contact with the weight member and can receive a reaction force as the weight member slides from the inner diameter position to the outer diameter position, and is formed with a first contact plane that contacts the receiving member when sliding from the inner diameter position to the outer diameter position, and a second contact plane that contacts the receiving member after rotating at the outer diameter position.

8. 7. The weight member for a continuously variable transmission according to claim 6, wherein the center of gravity of said core member is made different from the center of gravity of said outer member by setting the inclusion of said core member in said outer member at a desired position.

9. 7. The weight member for a continuously variable transmission according to claim 6, wherein the core member is heavier than the outer member.

10. 10. The weight member for a continuously variable transmission according to claim 9, wherein the core member is made of a metal material, and the outer member is made of a resin material.

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