JP2020012561A - Selectable one-way clutch - Google Patents

Abstract

To provide a selectable one-way clutch capable of restraining deterioration of the service life of an engagement piece, and capable of improving durability.SOLUTION: An SOWC 1 includes a pocket plate 10, a strut 12, a notch plate 20 having a plurality of notches 21, and a selector plate 30 which has a plurality of window holes 31 and can be switched between a state in which the strut 12 rises toward the notch plate 20 side through the window hole 31 and a state in which the struct 12 is stored in a pocket 11 by being rotated coaxially with the rotation axis of the notch plate 20. The strut 12 includes a protrusion 124 protruded to the rotation axis direction from a peripheral surface, and the selector plate 30 has a cutout groove formed along the forming direction of the protrusion 124 from an inner surface of the window hole 31. When the SOWC 1 is not engaged, the cutout groove is fitted to the protrusion 124, and the peripheral surface of the strut 12 and the selector plate 30 are overlapped with each other in the rotation axis direction of the SOWC 1.SELECTED DRAWING: Figure 1A

Description

  The present invention relates to a selectable one-way clutch.

  As a one-way clutch, for example, in Patent Document 1, a pocket plate in which struts (engaging pieces) are housed in a plurality of pockets (housing recesses) and a plurality of notches (engaging recesses) for engaging the struts are formed. There is disclosed a selectable one-way clutch including a notch plate provided and a selector plate located between the pocket plate and the notch plate.

U.S. Patent No. 8,844,693

  In a hybrid vehicle (HV vehicle) equipped with the above-described selectable one-way clutch, for example, during EV running, the notch plate is in the direction opposite to the engagement direction of the selectable one-way clutch, that is, the direction in which the struts are engaged with the notch. (Hereinafter referred to as “overrun direction”) in some cases (hereinafter referred to as “overrun”).

  At the time of overrun, a behavior occurs in which the strut reciprocates between the pocket plate and the notch plate. When the behavior of such a reciprocal collision becomes severe, a large yaw moment My and a translational force F1 are generated on the strut 52, for example, as shown in FIGS. As a result, the pair of ears (the inner ear 522 and the outer ear 523) of the strut 52 repeatedly collide with the inner surface 11a of the pocket 11 of the pocket plate 10, as shown in part A of FIG. 22 and part B of FIG. The life of the strut 52 may be reduced.

  The present invention has been made in view of the above, and an object of the present invention is to provide a selectable one-way clutch capable of suppressing a reduction in life of an engagement piece and improving durability.

  In order to solve the above-described problems and achieve the object, a selectable one-way clutch according to the present invention includes a pocket plate having a plurality of housing recesses formed on one surface, and an engagement piece housed in the housing recess. A notch plate that is rotatable relative to the pocket plate and has a plurality of engagement recesses formed on a surface facing the one surface of the pocket plate, and between the pocket plate and the notch plate. , Having a plurality of window holes penetrating in the thickness direction, and by rotating coaxially with the rotation axis of the notch plate, the engagement piece passes through the window hole and the notch from the pocket plate side. A selectable one including a selector plate that switches between a state in which the engaging piece is raised in a plate side and a state in which the engagement piece is housed in the housing recess. In the clutch, the engaging piece includes a protruding portion that protrudes in a rotation axis direction from a surrounding surface, and the selector plate includes a cutout groove formed from the window hole along a forming direction of the protruding portion. When the selectable one-way clutch is not engaged, the notch groove is fitted into the protruding portion, and the peripheral surface of the engagement piece and the selector plate are aligned in the rotation axis direction of the selectable one-way clutch. It is characterized by being in an overlapping state.

  Thus, in the selectable one-way clutch, when the selectable one-way clutch is not engaged (when the selector plate is closed), the distance between the engagement piece and the notch plate becomes smaller than the conventional distance, and the The rising angle of the engagement piece is smaller than the conventional rising angle. Therefore, according to the selectable one-way clutch, the down speed of the engagement piece during overrun is lower than before, and the impact force when the engagement piece makes a reciprocating collision between the notch plate and the pocket plate is reduced. Is done.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the engagement piece may include a main body extending along a circumferential direction of the selectable one-way clutch, and a radial direction extending from a circumferential end of the main body. A pair of ears that extend to opposite sides along with each other, and serve as a rotation axis when the engagement piece stands up, wherein the main body part protrudes from a position on an upper surface of the pair of ears. The upper surface of the protrusion contacts the notch plate when the engagement piece rises from the pocket plate side to the notch plate side through the window hole.

  As a result, in the selectable one-way clutch, the down speed of the engagement piece during overrun is reduced as compared with the conventional one, and the collision force when the engagement piece makes a reciprocating collision between the notch plate and the pocket plate is reduced. You.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the protruding portion has a side surface parallel to a side surface of the main body portion, and extends to an end of the main body portion on the pair of ears side. And a slanted portion inclined on the upper surface of the pair of ears on both sides of the side surface of the protruding portion.

  Thus, the selectable one-way clutch can improve the mechanical strength near the base between the main body and the pair of ears by providing the protrusion to the end of the main body.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the projecting portion has a side surface inclined with respect to a side surface of the main body portion, and is provided at an end of the main body portion on the side of the pair of ears. The projection is formed in a tapered shape, and is provided on both sides of the side surface of the protruding portion with a slope portion inclined with respect to the upper surfaces of the pair of ear portions.

  As a result, in the selectable one-way clutch, since the protruding portion is formed in a tapered shape, when the notched groove portion of the selector plate is fitted to the protruding portion of the engagement piece, the two portions come into contact with each other with the tapered surfaces. Thereby, the bending stress generated in the selector plate when the selector plate is closed can be reduced. Therefore, the durability of the selector plate and the operation responsiveness of the engagement piece can be improved.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the slope portion and the projecting portion are located in a line in the radial direction, and the pair of ears and the projecting portion are located in a line in the radial direction. It is characterized by being located.

  As a result, the selectable one-way clutch can improve the mechanical strength near the base between the main body and the pair of ears by arranging the pair of ears and the protrusion in the radial direction of the selectable one-way clutch. it can.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the pair of ears, the slope portion, and the protruding portion are located side by side in the radial direction.

  With this arrangement, the selectable one-way clutch can shorten the notch groove of the selector plate by arranging the pair of ears, the inclined surface, and the protrusion in the radial direction of the selectable one-way clutch. Rigidity and durability around the groove can be improved.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the slope portion is formed in a curved shape from a side surface of the projecting portion to a side surface of the main body portion.

  With this configuration, the selectable one-way clutch has a curved inclined surface so that when the notched groove of the selector plate is fitted to the protrusion of the engagement piece, the lower surface of the selector plate and the inner surface of the window hole are engaged. Sliding while always in line contact with the slope of one piece. Therefore, since the contact surface pressure between the selector plate and the engagement piece can be reduced, the wear resistance of both can be improved.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, the slope portion includes a flat contact portion parallel to a lower surface of the selector plate, and the flat contact portion is the selectable one-way clutch among the slope portions. Is provided at a position where the lower surface of the selector plate is in contact with the non-engagement of the selector plate.

  Thus, when the selector plate is closed and the engagement piece is housed in the housing recess, the selectable one-way clutch makes surface contact between the lower surface of the selector plate and the flat contact portion of the engagement piece. Can be countered without external force against the spring force that tries to raise the spring. Therefore, the driving force of the actuator for rotating the selector plate can be reduced, and the size and cost of the actuator can be reduced.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, in a state where the engagement piece rises from the pocket plate side to the notch plate side through the window hole, the slope portion with respect to the lower surface of the selector plate. Is larger than the angle of the upper surface of the engagement piece with respect to the lower surface of the selector plate.

  Thus, the selectable one-way clutch can reduce the drive angle of the arm that operates the selector plate. Therefore, the driving force of the actuator that rotates the selector plate via the arm can be reduced, and the size and cost of the actuator can be reduced.

  Further, in the selectable one-way clutch according to the present invention, in the above invention, in the radial direction, a gap between a side surface of the engagement piece and an inner surface of the window hole is formed between the side surface of the engagement piece and the housing recess. It is characterized by being smaller than the gap between the side surface.

  Thus, the selectable one-way clutch can reduce the amount of movement of the engagement piece in the yaw direction, and can sufficiently suppress the movement of the engagement piece in the yaw direction. Therefore, the yaw moment and the translational force can be further reduced, and the collision force when one or both of the pair of ears of the engagement piece collide with the inner surface of the housing recess can be further reduced.

  ADVANTAGE OF THE INVENTION According to the selectable one-way clutch which concerns on this invention, at the time of an overrun, the impact force at the time of an engagement piece reciprocatingly colliding between a notch plate and a pocket plate is eased, and generation | occurrence | production of a yaw moment and translation force is suppressed. Therefore, a reduction in the life of the engagement piece can be suppressed, and the durability can be improved.

FIG. 1A is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the first embodiment of the present invention, and is a cross-sectional view illustrating a state where the selectable one-way clutch is not engaged. FIG. 1B is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the first embodiment of the present invention, and is a perspective view illustrating a state where the selectable one-way clutch is not engaged. FIG. 2A is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the first embodiment of the present invention, and is a cross-sectional view illustrating a state when the selectable one-way clutch is engaged. FIG. 2B is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the first embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 3 is a perspective view showing a strut configuration of the selectable one-way clutch according to the first embodiment of the present invention. FIG. 4 is a perspective view showing the configuration of the selector plate of the selectable one-way clutch according to the first embodiment of the present invention. FIG. 5 shows the gap between the side surface of the strut and the inner surface of the window hole and the gap between the side surface of the strut and the side surface of the pocket when the selectable one-way clutch according to the first embodiment of the present invention is disengaged. It is a top view which shows a relationship. FIG. 6 shows the relationship between the gap between the side surface of the strut and the inner surface of the window hole and the gap between the side surface of the strut and the side surface of the pocket when the selectable one-way clutch according to the first embodiment of the present invention is engaged. FIG. FIG. 7 is a plan view for explaining the difference in the operation angle of the selector plate from the conventional one in the selectable one-way clutch according to the first embodiment of the present invention. FIG. 8 is a perspective view showing a strut configuration of a selectable one-way clutch according to a second embodiment of the present invention. FIG. 9 is a perspective view showing the configuration of the selector plate of the selectable one-way clutch according to the second embodiment of the present invention. FIG. 10 is a perspective view showing a strut configuration of a selectable one-way clutch according to a third embodiment of the present invention. FIG. 11 is a perspective view showing a state in which the selectable one-way clutch is not engaged in the selectable one-way clutch according to the third embodiment of the present invention. FIG. 12 is a perspective view illustrating a strut configuration of a selectable one-way clutch according to a fourth embodiment of the present invention. FIG. 13 is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to a fourth embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 14 is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to a modification of the fourth embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 15 is a perspective view illustrating a configuration of a strut of a selectable one-way clutch according to a fifth embodiment of the present invention. FIG. 16 is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to a fifth embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 17 is a perspective view showing a strut configuration of a selectable one-way clutch according to a sixth embodiment of the present invention. FIG. 18A is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to a sixth embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 18B is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the sixth embodiment of the present invention, and is a perspective view illustrating a state where the selectable one-way clutch is not engaged. FIG. 19 is a perspective view showing a strut configuration of a selectable one-way clutch according to a seventh embodiment of the present invention. FIG. 20A is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to a seventh embodiment of the present invention, and is a perspective view illustrating a state when the selectable one-way clutch is engaged. FIG. 20B is a diagram illustrating a configuration of a main part of the selectable one-way clutch according to the seventh embodiment of the present invention, and is a perspective view illustrating a state where the selectable one-way clutch is not engaged. FIG. 21 is a perspective view showing a strut configuration of a selectable one-way clutch according to the eighth embodiment of the present invention. FIG. 22 is a plan view for explaining a yaw moment generated on a strut at the time of overrun in a selectable one-way clutch according to the related art. FIG. 23 is a plan view for explaining a translation force generated on a strut at the time of overrun in a selectable one-way clutch according to the related art. FIG. 24 is a perspective view showing a strut configuration of a selectable one-way clutch according to the related art. FIG. 25 is a perspective view showing a configuration of a selector plate of a selectable one-way clutch according to the related art. FIG. 26 is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to the related art, and is a cross-sectional view illustrating a state where the selectable one-way clutch is not engaged. FIG. 27 is a diagram illustrating a configuration of a main part of a selectable one-way clutch according to the related art, and is a cross-sectional view illustrating a state when the selectable one-way clutch is engaged.

  A selectable one-way clutch (hereinafter, referred to as SOWC) according to an embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the following embodiments. The components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

[First Embodiment]
The SOWC 1 according to the first embodiment is mounted on a power transmission device in a hybrid vehicle, for example, and as shown in FIGS. 1A and 1B, a pocket plate 10, a notch plate 20, a selector plate 30, an arm 40. FIG. 1A is a cross-sectional view showing a state in which SOWC1 is cut in the XX direction (the position of the inner ear 122 (see FIG. 3) of the strut 12) shown in FIG. 1B, and FIG. FIG. 3 is a perspective view showing a state where a notch plate 20 is removed. The “rotation direction” illustrated in FIG. 1A indicates a direction in which the notch plate 20 rotates during an overrun (an overrun direction, a direction in which the SOWC1 is disengaged).

  The pocket plate 10 is formed in a cylindrical shape. On one surface of the pocket plate 10, that is, a surface facing the notch plate 20, a plurality of pockets (housing recesses) 11 that are recessed in the thickness direction of the SOWC 1 are formed, and a plate-like strut ( An engagement piece 12 is accommodated therein.

  The pocket 11 is formed at a position corresponding to the notch 21 of the notch plate 20. An elastic member 14 for urging the strut 12 toward the notch plate 20 is arranged between the strut 12 and the recess 13 (see FIG. 7) formed in the pocket 11. When the pocket plate 10 is viewed from the notch plate 20 side, the elastic member 14 is provided at the center of the strut 12 in the width direction, and does not actually exist in the cross section shown in FIG. 1A. For convenience of explanation, it is shown by a broken line (the same applies to the following figures).

  The strut 12 has a state in which the selector plate 30 rotates coaxially with the rotation axis of the notch plate 20 so that one end thereof rises from the pocket plate 10 side to the notch plate 20 side. It is configured to switch between a state in which it is accommodated in the pocket 11. Then, the strut 12 regulates the rotation of the notch plate 20 by engaging with the notch 21 under a predetermined condition, as described later.

  The notch plate 20 is formed in an annular shape (hollow disk shape). The notch plate 20 is arranged to face the surface of the pocket plate 10 on which the pockets 11 are formed, and is configured to be rotatable relative to the pocket plate 10.

  On the surface of the notch plate 20 facing the pocket plate 10, a plurality of notches (engaging recesses) 21 that are recessed in the thickness direction are formed. The notch 21 is a concave portion into which one end of the strut 12 rising from the pocket plate 10 side to the notch plate 20 side through the window hole 31 of the selector plate 30 is inserted.

  The selector plate 30 is formed in a ring shape (hollow disk shape) and a plate shape. The selector plate 30 is located between the pocket plate 10 and the notch plate 20. The selector plate 30 is switched between an engaged state and a disengaged state by rotating the selector plate 30 coaxially with the rotation axis of the notch plate 20 by a predetermined angle around the rotation axis, as described later. The selector plate 30 is provided with a window hole 31 penetrating in the thickness direction at a position corresponding to the pocket 11 and the strut 12 of the pocket plate 10.

  Here, when the position of the window hole 31 is shifted from the position of the pocket 11 in the circumferential direction of the SOWC 1, the strut 12 is moved by the lower surface 30 b of the selector plate 30 toward the pocket 11 as shown in FIGS. 1A and 1B. The strut 12 is accommodated in the pocket 11. As a result, SOWC1 is disengaged. In this disengaged state, the strut 12 does not engage with the notch 21 (the engagement between the strut 12 and the notch 21 is released), so that torque is not transmitted between the pocket plate 10 and the notch plate 20. Becomes

  On the other hand, when the position of the window hole 31 substantially coincides with the position of the pocket 11 in the circumferential direction of the SOWC 1, one end of the strut 12 is pushed by the elastic member 14 as shown in FIGS. It rises from the pocket plate 10 side to the notch plate 20 side through the hole 31. Then, in a state where one end of the strut 12 stands up from the pocket plate 10 side to the notch plate 20 side, the notch plate 20 is engaged with the pocket plate 10 in a direction opposite to the “rotation direction” of FIG. 1A. ), The strut 12 is engaged with the notch 21, and the SOWC 1 is in the engaged state. In this engaged state, the strut 12 is engaged with the notch 21, so that the torque is transmitted between the pocket plate 10 and the notch plate 20.

  The arm 40 transmits a driving force of an actuator (not shown) provided outside to the selector plate 30. The distal end 41 of the arm 40 is inserted into the cutout 15 formed on the outer periphery of the pocket plate 10, and is connected to the selector plate 30 inside the pocket plate 10. Further, as shown in FIG. 1B, the distal end of the arm 40 exposed from the notch 15 to the outside of the SOWC 1 is connected to an actuator (not shown). When the actuator is driven, the selector plate 30 rotates via the arm 40.

  Hereinafter, a specific configuration and operation of the strut 52 and the selector plate 70 of the conventional SOWC 101 will be described with reference to FIGS.

  As shown in FIG. 24, the conventional strut 52 includes a main body 521, an inner ear 522, and an outer ear 523. The upper surface 521a of the main body 521 is formed in a flat and gentle curved shape. Further, the main body 521 includes a flat portion 524b between the inner ear portion 522 and the outer ear portion 523, which connects the upper surface 522a of the inner ear portion 522 and the upper surface 523a of the outer ear portion 523. As described above, in the strut 52, the upper surface 522a of the inner ear 522, the upper surface 523a of the outer ear 523, and the flat portion 524b form the same plane.

  As shown in FIG. 25, a plurality of rectangular window holes 71 and a cutout 72 to which the arm 40 (see FIG. 1B) is connected are formed in the conventional selector plate 70, as shown in FIG.

  In the conventional SOWC 101 having such a configuration, as shown in FIG. 26, when the notch plate 20 is rotating at a high speed in the overrun direction, for example, an electric failure of an actuator (not shown) for driving the arm 40 is caused. When the selector plate 70 is erroneously rotated to the release side due to the above, the strut 52 rises toward the notch plate 20 by the spring force of the elastic member 14 as shown in FIG. Then, the strut 52 reciprocates between the notch plate 20 and the pocket plate 10 that are rotating at high speed, and repeats collision. As a result, the tensile stress due to the collision is concentrated near the root of the main body 521 (the flat part 524b), which is the weakest part of the strut 52, and the inner ear 522 and the outer ear 523. Could be reduced.

  Here, as shown in FIGS. 26 and 27, in the process in which the strut 52 repeats reciprocating collision between the notch plate 20 and the pocket plate 10, the strut 52 accelerates with a force greater than the restoring force of the elastic member 14, Stand up to the notch 21 deep. As a result, the strut 52 is dropped down at a high speed by the notch plate 20, and the yaw moment My (see FIG. 22) and the translational force F1 (see FIG. 23) are generated in the strut 52, so that the inner ear portion 522 and the outer ear portion 522 are formed. One or both of 523 collides with the inner surface 11a of the pocket 11 at high speed.

  As shown in FIG. 27, the strut 52 is dropped down to the pocket plate 10 side by the notch plate 20 at a high speed because the rising angle θ11 of the strut 52 is large in the conventional SOWC 101, The speed at which the ball is downed (hereinafter, referred to as “downspeed”) is increased.

  The reason why the yaw moment My and the translational force F1 are generated on the strut 52 is that, in addition to the fact that the rising angle θ11 of the strut 52 is large, as shown in FIGS. For this reason, the gap S between the inner surface 11a of the pocket 11 that determines the posture of the strut 52 and the side surface 521b of the main body 521 of the strut 52 is set large, so that the movement of the strut 52 in the yaw direction can be sufficiently suppressed. Is not possible.

  Therefore, in the SOWC 1 according to the present embodiment, by changing the shape of the strut 12 and the selector plate 30, the above-described phenomenon in which the strut 12 is dropped down at a high speed by the notch plate 20, the yaw moment My and the translational force F 1 Is suppressed. Hereinafter, specific configurations of the strut 12 and the selector plate 30 of the SOWC 1 will be described with reference to FIGS. 3 and 4.

  As illustrated in FIG. 3, the strut 12 extends along the circumferential direction of the pocket plate 10, and extends along the radial direction of the SOWC 1 from the end of the main body 121 (the end in the circumferential direction of the SOWC 1). An inner ear portion 122 and an outer ear portion 123 extending to opposite sides. Note that the inner ear 122 and the outer ear 123 function as rotation axes when the strut 12 stands up.

  The upper surface 121a of the main body 121 is formed in a gentle curved shape. In addition, the main body 121 includes a protrusion 124 and a slope 125. The protruding portion 124 is formed at the center in the width direction of the upper surface 121a of the main body 121, that is, at the radial center of the SOWC1 on the upper surface 121a of the main body 121, and is formed along the circumferential direction of the SOWC1. Further, the protruding portion 124 is formed from a position at the center in the length direction of the upper surface 121 a of the main body 121 to an end of the main body 121. Note that the “end of the main body 121” is an end in the extending direction of the main body 121 and indicates an end on the side of the inner ear 122 and the outer ear 123 in the circumferential direction of the SOWC1. I have.

  The upper surface 124a of the protrusion 124 protrudes in the thickness direction of the strut 12 from the positions of the upper surface 122a of the inner ear 122 and the upper surface 123a of the outer ear 123. That is, the upper surface 124 a of the protruding portion 124 is provided at a position higher than the upper surface 122 a of the inner ear 122 and the upper surface 123 a of the outer ear 123 in the thickness direction of the strut 12.

  The upper surface 124a of the projecting portion 124 is notched when the strut 12 rises from the pocket plate 10 side to the notch plate 20 side through the window hole 31 when the SOWC 1 is disengaged (when the selector plate 30 is released). It functions as a contact portion that contacts the plate 20. The side surface 124 b of the protruding portion 124 is formed parallel to the side surface 121 b of the main body 121. That is, the protruding portion 124 is formed to have a constant width in plan view.

  Although the side surface 124b of the protruding portion 124 and the side surface 121b of the main body portion 121 are each formed in a planar shape in FIG. 3, at least one of them may be provided with a predetermined radius to form a curved surface. Therefore, the expression “the side surface 124b of the protruding portion 124 is parallel to the side surface 121b of the main body portion 121” includes not only a case where both are completely parallel but also a case where they are substantially parallel (substantially parallel).

  The slopes 125 are formed on both sides of the side surface 124 b of the protrusion 124, and are inclined with respect to the upper surface 122 a of the inner ear 122 and the upper surface 123 a of the outer ear 123. In the strut 12 having such a configuration, the slope portion 125 and the protruding portion 124 are located side by side in the radial direction of the SOWC1, and the inner ear portion 122, the outer ear portion 123 and the protruding portion 124 are located side by side in the radial direction of the SOWC1. are doing.

  As shown in FIG. 4, the selector plate 30 is provided with a plurality of rectangular window holes 31 and a cutout 32 to which the arm 40 (see FIG. 1B) is connected. A cutout groove 311 is formed in the selector plate 30 from the inner surface 31 a of the window hole 31 along the direction in which the protrusion 124 is formed, that is, along the circumferential direction of the SOWC 1. The cutout groove 311 is formed in a convex shape and has a length substantially equal to the length of the protruding portion 124 of the strut 12.

  As shown in FIGS. 1A and 1B, the SOWC 1 including the strut 12 and the selector plate 30 having such a shape has the notched groove 311 of the selector plate 30 when the SOWC 1 is not engaged (when the selector plate 30 is closed). The strut 12 moves so as to slide with respect to the protrusion 124, and the notch groove 311 fits into the protrusion 124. Then, as shown in FIG. 1A, the strut 12 and the selector plate 30 overlap each other in the direction of the rotation axis of the SOWC 1. Note that, specifically, “the state in which the strut 12 and the selector plate 30 overlap with each other in the rotation axis direction of the SOWC 1” means that the selector plate is at least higher than the upper surface 121 a of the main body 121 of the strut 12 as shown in FIG. 30 is in a state where the lower surface 30b is located on the lower side in the rotation axis direction, preferably in a state where the upper surface 121a of the main body 121 of the strut 12 and the upper surface 30a of the selector plate 30 are located at substantially the same height. Means that.

  Thereby, as shown in FIG. 1A, when the SOWC 1 is not engaged (when the selector plate 30 is closed), the distance between the strut 12 and the notch plate 20, that is, the upper surface 121a of the main body 121 of the strut 12 and the notch The distance D12 from the bottom surface 21 of the conventional SOWC 101 is smaller than the distance D11 of the conventional SOWC 101 (see FIG. 26). Then, as shown in FIG. 2A, the rising angle θ12 of the strut 12 at the time of overrun becomes smaller than the rising angle θ11 of the conventional SOWC 101 (see FIG. 27). Therefore, according to the SOWC 1 according to the present embodiment, the downstroke speed of the strut 12 at the time of the overrun is reduced as compared with the related art, and the collision when the strut 12 reciprocates between the notch plate 20 and the pocket plate 10 is performed. The power is eased.

  In the SOWC 1, the notch groove 311 of the selector plate 30 is fitted into the protrusion 124 provided at the center of the strut 12 in the width direction to limit the rising angle θ12 of the strut 12. This is the portion C in FIG. 3, that is, the upper surface 124a of the protrusion 124. Therefore, at the time of collision with the notch plate 20, a downward force from the notch plate 20 acts on the strut 12, and a frictional force F2 from the notch plate 20 is generated on the upper surface 124a of the protrusion 124. Therefore, since the SOWC 1 has the protrusion 124, the frictional force F2 acts on the protrusion 124 at the time of collision with the notch plate 20, and the frictional force F2 acts evenly in the width direction of the strut 12, so that the strut 1 12 can be prevented from generating a rolling motion.

  Here, in the SOWC1, as shown in FIGS. 5 and 6, a gap S1 between the side surface 121b of the main body 121 of the strut 12 and the inner surface 31a of the window hole 31 of the selector plate 30 in the radial direction of the SOWC1. It is preferable to set the gap smaller than the gap S2 between the side surface 121b of the main body 121 of the strut 12 and the inner surface 11a of the pocket 11.

  Thereby, the amount of movement of the strut 12 in the yaw direction can be reduced, and the movement of the strut 12 in the yaw direction can be sufficiently suppressed. Accordingly, the yaw moment My and the translational force F1 can be further reduced, and the collision force when one or both of the inner ear portion 122 and the outer ear portion 123 of the strut 12 collides with the inner surface 11a of the pocket 11 can be further reduced. .

  The relationship between the gap S1 and the gap S2 described above (gap S1 <gap S2) as shown in FIGS. 5 and 6 can be realized under the structure of the SOWC 1 according to the present embodiment. This is not feasible under the technical SOWC 101 structure.

  For example, in the SOWC 1 according to the present embodiment, as shown in FIG. 1A, when the selector plate 30 is closed (when the SOWC 1 is not engaged), the strut 12 and the selector plate 30 are overlapped in the rotation axis direction of the SOWC 1. It has become. The position of the strut 12 in the pocket 11 and the movement in the yaw direction are restricted by fitting the notch groove 311 of the selector plate 30 into the protrusion 124 of the strut 12. Upon release, the struts 12 rise directly above. Therefore, even if the gap S1 between the strut 12 and the window hole 31 is smaller than the gap S2 between the strut 12 and the pocket 11, the strut 12 does not get caught in the window hole 31 and can stand up normally. It is possible.

  On the other hand, in the SOWC 101 according to the related art, as shown in FIG. 26, when the selector plate 70 is closed (when the SOWC 101 is not engaged), the strut 52 and the selector plate 70 do not overlap in the rotation axis direction of the SOWC 101. In addition, since the position of the strut 52 and the movement in the yaw direction in the pocket 11 are not particularly restricted, the strut 52 may not stand upright when the selector plate 70 is released. Therefore, if the gap between the strut 52 and the window hole 71 is made smaller than the gap between the strut 52 and the pocket 11, the strut 52 may be caught by the window hole 71 and may not stand up normally.

  Here, in the SOWC1, as shown in FIG. 2A, when the strut 12 rises from the pocket plate 10 side to the notch plate 20 side through the window hole 31 at the time of overrun, the slope portion 125 with respect to the lower surface 30b of the selector plate 30. Is preferably set to be larger than the angle θ21 of the upper surface 121a of the main body 121 of the strut 12 with respect to the lower surface 30b of the selector plate 30.

  Thus, as compared with the conventional SOWC 101 having the strut 52 without the slope 125 (see FIG. 27), the strut 12 (specifically, the slope 125) of the lower surface 30b of the selector plate 30 when the selector plate 30 is closed. , And the strut 12 can be accommodated in the pocket 11 with a shorter stroke than before. Therefore, as shown in FIG. 7, the drive angle θ32 of the arm 40 that operates the selector plate 30 can be made smaller than the drive angle θ31 of the conventional SOWC 101. Therefore, the stroke amount of an actuator (not shown) that operates the arm 40 to rotate the selector plate 30 can be shortened, and the actuator can be reduced in size and cost.

  According to the SOWC 1 according to the first embodiment as described above, at the time of overrun, the striking force when the strut 12 reciprocates between the notch plate 20 and the pocket plate 10 is reduced, and the yaw moment My And the generation of the translational force F <b> 1 can be suppressed, so that the life of the strut 12 can be suppressed from being shortened, and the durability can be improved.

  Further, according to SOWC1, the inner ear 122, the outer ear 123, and the protrusion 124 are arranged in the radial direction of the SOWC1, that is, the protrusion 124 is provided up to the end of the main body 121, so that the main body 121 and the inner ear It is possible to improve the mechanical strength near the base between the outer ear 122 and the outer ear 123.

[Second embodiment]
The SOWC according to the second embodiment will be described with reference to FIGS. The configuration of the SOWC according to the present embodiment is the same as that of the first embodiment except that a strut 12A shown in FIG. 8 and a selector plate 30A shown in FIG. 9 are provided.

  The strut 12A is obtained by extending the slope 125 of the strut 12 of the first embodiment to the end of the main body 121. As shown in FIG. 8, the strut 12A includes a main body 121A, an inner ear 122, and an outer ear 123. A protrusion 124A is provided on the upper surface 121a of the main body 121A along the circumferential direction of the SOWC. Further, a pair of slope portions 125A are provided on both sides of the side surface 124b of the protrusion 124A.

  The protruding portion 124A is formed at the center in the width direction of the upper surface 121a of the main body 121A. The protruding portion 124A is formed from a position closer to the end of the main body 121A than the center in the longitudinal direction of the upper surface 121a of the main body 121A to the end of the main body 121A. The length of the protrusion 124A (the length in the circumferential direction of the SOWC) is formed shorter than the length of the protrusion 124 of the strut 12 of the first embodiment. Further, the slope portion 125A is formed up to the position of the end of the main body portion 121A similarly to the projecting portion 124A. In the strut 12A having such a configuration, the inner ear 122, the outer ear 123, the inclined surface 125A, and the protrusion 124A are located side by side in the radial direction of the SOWC.

  As shown in FIG. 9, a plurality of rectangular window holes 31A and a notch 32 are formed in the selector plate 30A. A cutout groove 311A is formed in the selector plate 30A from the inner surface 31a of the window hole 31A along the direction in which the protrusion 124A of the strut 12A is formed. The length (length in the circumferential direction of the SOWC) L2 of the notch groove portion 311A is shorter than the length L1 of the notch groove portion 311 (see FIG. 4) of the selector plate 30 of the first embodiment.

  According to the SOWC according to the second embodiment as described above, the inner ear 122, the outer ear 123, the slope 125A, and the protrusion 124A are arranged side by side in the radial direction of the SOWC, so that the notch groove of the selector plate 30A is formed. Since 311A can be shortened, rigidity and durability around the cutout groove 311A of the selector plate 30A can be improved. Further, by shortening the notch groove 311A, the stroke amount of an actuator (not shown) that rotates the selector plate 30A by operating the arm 40 (see FIG. 7) can be shortened, and the actuator can be reduced in size and cost. Can be achieved.

  Further, according to the SOWC according to the second embodiment, as in the first embodiment, by providing the protruding portion 124A to the end of the main body 121A, the base of the main body 121A and the inner ear 122 and the outer ear 123 is provided. The mechanical strength in the vicinity can be improved.

  Further, according to the SOWC according to the second embodiment, the slope 125A is provided to the end of the main body 121A, so that the slope 125 is not provided to the end of the main body 121 in the first embodiment (see FIG. 3). Since the thickness of the end portion of the slope portion 125A can be made thicker than that of the first embodiment, the rigidity and durability of the strut 12A can be further improved.

[Third embodiment]
The SOWC 1B according to the third embodiment will be described with reference to FIGS. The configuration of the SOWC 1B according to the present embodiment is the same as that of the second embodiment except that a strut 12B shown in FIG. 10 is provided.

  The strut 12B is obtained by making a part of the slope portion 125A in the strut 12A of the second embodiment flat. As shown in FIG. 10, the strut 12B includes a main body 121B, an inner ear 122, and an outer ear 123. A projection 124B is provided on the upper surface 121a of the main body 121B along the circumferential direction of the SOWC 1B. Further, a pair of slope portions 125B are provided on both sides of the side surface 124b of the protruding portion 124B. A flat contact portion 126B is provided at the top of the slope 125B, that is, between the slope 125B and the upper surface 121a of the main body 121B.

  The protruding portion 124B is formed at the center in the width direction of the upper surface 121a of the main body 121B. The protrusion 124B is formed at the same position and the same length as the protrusion 124A of the second embodiment.

  The planar contact portion 126B is provided at the top of the slope portion 125B. Specifically, as shown in FIG. 11, the plane contact portion 126B is a position of the slope portion 125B where the lower surface 30b of the selector plate 30A contacts when the selector plate 30A is closed (when the SOWC 1B is disengaged), that is, The slope portion 125B is provided at a position where the lower surface 30b contacts when the selector plate 30A makes a full stroke. The planar contact portion 126B is formed to be parallel to the lower surface 30b of the selector plate 30A when the selector plate 30A is closed. In the strut 12B having such a configuration, as shown in FIG. 10, the planar contact portion 126B and the protruding portion 124B are located side by side in the radial direction of the SOWC 1B, and the inner ear 122, the outer ear 123, the slope 125B, and the protruding portion are provided. 124B are located side by side in the radial direction of SOWC1B.

  According to the SOWC 1B according to the third embodiment described above, when the selector plate 30A is closed and the strut 12B is housed in the pocket 11, as shown in FIG. And the flat contact portion 126B of the strut 12B are in surface contact with each other, and the spring force of the elastic member 14 for raising the strut 12B acts substantially perpendicularly to the lower surface 30b of the selector plate 30A. Therefore, it is possible to oppose the spring force of the elastic member 14 without any external force.

  The “external force” is a force that acts on the selector plate 30A from an actuator (not shown) via the arm 40 (see FIG. 7), and holds the selector plate 30A in a closed state as shown in FIG. It shows the power to continue. As described above, according to the SOWC 1B according to the present embodiment, the driving force of the actuator (not shown) can be reduced, and the size and cost of the actuator can be reduced.

  Further, according to the SOWC 1B according to the third embodiment, similarly to the first embodiment, by providing the protruding portion 124B to the end of the main body 121B, the base of the main body 121B and the inner ear 122 and the outer ear 123 is provided. The mechanical strength in the vicinity can be improved.

  According to the SOWC 1B according to the third embodiment, similarly to the second embodiment, by providing the slope portion 125B to the end of the main body portion 121B, the thickness of the end of the slope portion 125B can be increased. Therefore, the rigidity and durability of the strut 12B can be further improved.

[Fourth embodiment]
The SOWC 1C according to the fourth embodiment will be described with reference to FIGS. The configuration of the SOWC 1C according to the present embodiment is the same as that of the first embodiment except that a strut 12C shown in FIG. 12 and a selector plate 30C shown in FIG. 13 are provided.

  The strut 12C is obtained by tapering the protrusion 124 of the strut 12 of the first embodiment. As shown in FIG. 12, the strut 12C includes a main body 121C, an inner ear 122, and an outer ear 123. A protrusion 124C is provided on the upper surface 121a of the main body 121C along the circumferential direction of the SOWC 1C. In addition, a pair of slope portions 125C are provided on both sides of the side surface 124b of the protrusion 124C. The main body 121C includes a flat portion 127C between the inner ear portion 122 and the outer ear portion 123 for connecting the upper surface 122a of the inner ear portion 122 and the upper surface 123a of the outer ear portion 123. That is, in the strut 12C, the upper surface 122a of the inner ear portion 122, the upper surface 123a of the outer ear portion 123, and the flat portion 127C form the same plane.

  The protruding portion 124C has a side surface 124b inclined with respect to the side surface 121b of the main body portion 121C, and is formed in a tapered shape toward an end of the main body portion 121C. Further, the protruding portion 124C is formed in a V-shape in plan view, and the V-shaped bottom surface is formed in a straight line. The side surface 124b of the protrusion 124C is formed in a flat shape. In the strut 12C having such a configuration, the slope portion 125C and the protruding portion 124C are located side by side in the radial direction of the SOWC 1C, and the inner ear 122, the outer ear 123, and the plane portion 127C are located side by side in the radial direction of the SOWC 1C. ing.

  Although the side surface 124b of the protruding portion 124C and the side surface 121b of the main body portion 121C are each formed in a planar shape in FIG. 12, at least one of them may be provided with a predetermined radius to form a curved surface. The above-mentioned “the side surface 124b of the protruding portion 124C is inclined with respect to the side surface 121b of the main body portion 121C” means that both are inclined by a predetermined angle or more, and when both are substantially parallel (substantially parallel). Is not included.

  A plurality of window holes 31C as shown in FIG. 13 are formed in the selector plate 30C. A cutout groove 311C is formed in the selector plate 30C from the inner surface 31a of the window hole 31C along the direction in which the protrusion 124C of the strut 12C is formed. This notched groove 311C is formed in a tapered shape similarly to the protrusion 124C, and the inner surface thereof is formed in a planar shape.

  According to the SOWC 1C according to the fourth embodiment described above, when the notch groove 311C of the selector plate 30C fits into the protrusion 124C of the strut 12C, the two contact each other with their tapered surfaces. The bending stress generated in the selector plate 30C when the selector plate 30C is closed can be reduced. Therefore, the durability of the selector plate 30C and the operation responsiveness of the struts 12C can be improved.

  For example, in the first embodiment described above, the corner 121c (see FIG. 3) is formed near the end of the protruding portion 124 of the strut 12, and the end of the notch groove 313 of the selector plate 30 is correspondingly formed. A corner 31b (see FIG. 4) is also formed in the vicinity. Therefore, when the selector plate 30 is closed, the corner 121c of the strut 12 comes into contact with the corner 31b of the selector plate 30, and a bending stress is generated at the corner 31b. On the other hand, in the present embodiment, since the selector plate 30C does not include the corner 31b, the bending stress at the time of contact with the strut 12C is reduced.

  In the SOWC 1C according to the fourth embodiment, the struts 12C and the selector plate 30C may be configured as shown in FIG. In the modification shown in the figure, the protruding portion 124D of the strut 12D is formed in a tapered shape like the strut 12C described above, but is formed in a U-shape in plan view. The side surface 124b of the protruding portion 124D is formed in a curved shape toward the tip of the protruding portion 124D.

  The cutout groove 311D of the window hole 31D of the selector plate 30D is formed in a tapered shape like the above-described selector plate 30C, but is formed in a U-shape in plan view. Further, the inner surface of the notch groove 311D is formed in a curved shape toward the tip of the notch groove 311D.

  According to the SOWC 1D according to the modified example of the fourth embodiment as described above, when the cutout groove 311D of the selector plate 30D is fitted to the protrusion 124D of the strut 12D, the tapered and curved surfaces contact each other. By doing so, it is possible to further reduce the bending stress generated in the selector plate 30D when the selector plate 30D is closed. Therefore, the durability of the selector plate 30D and the operation responsiveness of the struts 12D can be further improved.

[Fifth Embodiment]
The SOWC 1E according to the fifth embodiment will be described with reference to FIGS. The configuration of the SOWC 1E according to the present embodiment is the same as that of the first embodiment except that a strut 12E shown in FIG. 15 and a selector plate 30E shown in FIG. 16 are provided.

  The strut 12E is obtained by extending the protrusion 124C of the strut 12C of the fourth embodiment to the end of the main body 121C. As shown in FIG. 15, the strut 12E includes a main body 121E, an inner ear 122, and an outer ear 123. A projecting portion 124E is provided on the upper surface 121a of the main body 121E along the circumferential direction of the SOWC 1E. Further, a pair of slope portions 125E are provided on both sides of the side surface 124b of the protruding portion 124E.

  The protruding portion 124E has a side surface 124b inclined with respect to the side surface 121b of the main body portion 121E, and is formed in a tapered shape toward an end of the main body portion 121E. The protruding portion 124E is formed in a V-shape in plan view. The side surface 124b of the protruding portion 124E is formed in a planar shape. In the strut 12E having such a configuration, the slope portion 125E and the protruding portion 124E are located side by side in the radial direction of the SOWC1E, and the inner ear 122, the outer ear portion 123 and the protruding portion 124E are located side by side in the radial direction of the SOWC1E. ing.

  A plurality of window holes 31E as shown in FIG. 16 are formed in the selector plate 30E. A cutout groove 311E is formed in the selector plate 30E from the inner surface 31a of the window hole 31E along the direction in which the protrusion 124E of the strut 12E is formed. This notched groove 311E is formed in a tapered shape like the protruding portion 124E, and its inner surface is formed in a planar shape.

  According to the SOWC 1E according to the fifth embodiment described above, similarly to the first embodiment, by providing the protruding portion 124E to the end of the main body 121E, the main body 121E, the inner ear 122, and the outer ear 123 are provided. And the mechanical strength near the base can be improved.

  According to the SOWC1E, similarly to the fourth embodiment, the bending stress generated in the selector plate 30E when the selector plate 30E is closed can be reduced, so that the durability of the selector plate 30E and the strut 12E can be reduced. Operation responsiveness can be improved.

[Sixth embodiment]
The SOWC 1F according to the sixth embodiment will be described with reference to FIGS. 17 to 18B. The configuration of the SOWC 1F according to the present embodiment is the same as that of the fifth embodiment except that a strut 12F shown in FIG. 17 is provided.

  The strut 12F is obtained by making the slope portion 125E of the strut 12E of the fifth embodiment a curved surface. As shown in FIG. 17, the strut 12F includes a main body 121F, an inner ear 122, and an outer ear 123. A protrusion 124F is provided on the upper surface 121a of the main body 121F along the circumferential direction of the SOWC 1F. Further, a pair of slope portions 125F is provided on both sides of the side surface 124b of the protrusion 124F. Note that the configuration of the protruding portion 124F is the same as the configuration of the protruding portion 124E of the above-described fifth embodiment, and a description thereof will be omitted.

  The slope portion 125F is formed in a curved shape from the side surface 124b of the protruding portion 124F to the side surface 121b of the main body portion 121F.

  Here, for example, in the SOWC 1E according to the fifth embodiment, when the selector plate 30E is switched from the released state to the closed state, and the notch groove portion 311E of the selector plate 30E is fitted to the protrusion 124E of the strut 12E, D in FIG. As shown in the figure, the lower surface 30b of the selector plate 30E and the inner surface 31a of the window hole 31E slide while constantly making point contact with the slope 125E of the strut 12E.

  On the other hand, in the SOWC 1F according to the sixth embodiment, when the notched groove 311E of the selector plate 30E fits into the protruding portion 124F of the strut 12F by making the slope portion 125F a curved surface, the portion E in FIG. As shown in the F portion of 18B, the lower surface 30b of the selector plate 30E and the inner surface 31a of the window hole 31E slide while constantly making line contact with the slope portion 125F of the strut 12F. Therefore, according to SOWC1F, since the contact surface pressure between selector plate 30E and strut 12F can be reduced, the wear resistance of both can be improved.

  According to the SOWC 1F, similarly to the first embodiment, by providing the protruding portion 124F to the end of the main body 121F, the mechanical strength near the base of the main body 121F and the inner ear 122 and the outer ear 123 is improved. Can be improved.

  Further, according to the SOWC1F, similarly to the fourth embodiment, since the bending stress generated in the selector plate 30E when the selector plate 30E is closed can be reduced, the durability of the selector plate 30E and the operation of the strut 12F can be reduced. Responsiveness can be improved.

[Seventh embodiment]
The SOWC1G according to the seventh embodiment will be described with reference to FIGS. 19 to 20B. The configuration of the SOWC 1G according to the present embodiment is the same as that of the sixth embodiment except that a strut 12G shown in FIG. 19 is provided.

  The strut 12G is obtained by extending the slope 125F of the strut 12F of the sixth embodiment to the end of the main body 121F. As shown in FIG. 19, the strut 12G includes a main body 121G, an inner ear 122, and an outer ear 123. A protrusion 124G is provided on the upper surface 121a of the main body 121G along the circumferential direction of the SOWC 1G. Further, a pair of slope portions 125G are provided on both sides of the side surface 124b of the protrusion 124G. Note that the configuration of the protruding portion 124G is the same as the configuration of the protruding portion 124E of the above-described fifth embodiment, and a description thereof will be omitted.

  The slope portion 125G is formed in a curved shape from the side surface 124b of the protruding portion 124G to the side surface 121b of the main body portion 121G. Further, the slope 125G is formed up to the position of the end of the main body 121G, similarly to the protrusion 124G. In the strut 12G having such a configuration, the inner ear 122, the outer ear 123, the slope 125G, and the protrusion 124G are located side by side in the radial direction of the SOWC1G.

  Here, for example, in the SOWC 1F according to the sixth embodiment, as shown in a portion E of FIG. 18A, at the stage of starting to close the selector plate 30E, the length of the contact line between the selector plate 30E and the strut 12F is short.

  On the other hand, in the SOWC1G according to the seventh embodiment, by extending the curved slope portion 125G to the end of the main body portion 121G, as shown in a portion G in FIG. The length of the contact line between the plate 30E and the strut 12G can be longer than in the sixth embodiment. Therefore, according to SOWC1G, the contact surface pressure between selector plate 30E and strut 12G can be further reduced, and the wear resistance of both can be further improved.

  Further, according to the SOWC1G, similarly to the second embodiment, by providing the slope portion 125G to the end of the main body portion 121G, the thickness of the end portion of the slope portion 125G can be increased. Rigidity and durability can be further improved.

  According to the SOWC1G, similarly to the first embodiment, by providing the protruding portion 124G to the end of the main body 121G, the mechanical strength near the base of the main body 121G and the inner ear 122 and the outer ear 123 can be reduced. Can be improved.

  Further, according to the SOWC1G, similarly to the fourth embodiment, since the bending stress generated in the selector plate 30E when the selector plate 30E is closed can be reduced, the durability of the selector plate 30E and the operation of the struts 12G can be reduced. Responsiveness can be improved.

[Eighth Embodiment]
The SOWC according to the eighth embodiment will be described with reference to FIG. The configuration of the SOWC according to this embodiment is the same as that of the seventh embodiment except that a strut 12H shown in FIG. 21 is provided.

  The strut 12H is obtained by flattening a part of the slope portion 125G in the strut 12G of the seventh embodiment. As shown in FIG. 21, the strut 12H includes a main body 121H, an inner ear 122, and an outer ear 123. A projecting portion 124H is provided on the upper surface 121a of the main body 121H along the circumferential direction of the SOWC. Further, a pair of slope portions 125H is provided on both sides of the side surface 124b of the protrusion 124H. A flat contact portion 126H is provided at the top of the slope 125H, that is, between the slope 125H and the side surface 124b of the protrusion 124H. Note that the configuration of the protruding portion 124H and the slope portion 125H is the same as the configuration of the protruding portion 124G of the above-described seventh embodiment, and a description thereof will be omitted.

  Specifically, the planar contact portion 126H is a position of the inclined surface 125H where the lower surface 30b of the selector plate 30E contacts when the selector plate 30E (see FIG. 20A) is closed (when the SOWC is not engaged), that is, the inclined surface. The portion 125H is provided at a position where the lower surface 30b contacts when the selector plate 30E makes a full stroke. The planar contact portion 126H is formed to be parallel to the lower surface 30b of the selector plate 30E when the selector plate 30E is closed.

  According to the SOWC according to the eighth embodiment described above, as in the third embodiment, the lower surface 30b of the selector plate 30E (see FIG. 20A) comes into surface contact with the plane contact portion 126H of the strut 12H. It is possible to oppose the spring force of the elastic member 14 without any external force.

  Further, according to the SOWC according to the eighth embodiment, similarly to the first embodiment, by providing the protruding portion 124H to the end of the main body 121H, the base of the main body 121H and the inner ear 122 and the outer ear 123 is connected. The mechanical strength in the vicinity can be improved.

  Further, according to the SOWC according to the eighth embodiment, similarly to the second embodiment, by providing the slope portion 125H to the end of the main body portion 121H, it is possible to increase the thickness of the end of the slope portion 125H. Therefore, the rigidity and durability of the strut 12H can be further improved.

  Further, according to the SOWC according to the eighth embodiment, similarly to the fourth embodiment, the bending stress generated in the selector plate 30E when the selector plate 30E (see FIG. 20A) is closed can be reduced. The durability of the plate 30E and the operation responsiveness of the strut 12H can be improved.

  Further, according to the SOWC according to the eighth embodiment, similarly to the sixth embodiment, by extending the curved inclined surface 125H to the end of the main body 121H, the selector plate 30E (see FIG. 20A) and the strut are formed. It is possible to further reduce the contact surface pressure with 12H, and to further improve the wear resistance of both.

  As described above, the selectable one-way clutch according to the present invention has been specifically described by the mode for carrying out the invention. However, the gist of the present invention is not limited to these descriptions, but is based on the description in the claims. Must be widely interpreted. It goes without saying that various changes and modifications based on these descriptions are also included in the gist of the present invention.

  For example, in the SOWC according to the second to eighth embodiments, similarly to the SOWC1 according to the first embodiment, in the radial direction of the SOWC, the side surface 121b of the main body portions 121A to 121H of the struts 12A to 12H and the selector plate The gap between the inner surfaces 31a of the window holes 31A to 31E of 30A to 30E is set smaller than the gap between the side surfaces 121b of the main body portions 121A to 121H of the struts 12A to 12H and the inner surface 11a of the pocket 11. Is preferred. Thereby, the yaw moment My and the translational force F1 generated in the struts 12A to 12H are further reduced, and one or both of the inner ear 122 and the outer ear 123 of the struts 12A to 12H collides with the inner surface 11a of the pocket 11. The collision force can be further reduced.

  Further, in the SOWC according to the second to eighth embodiments, similarly to the SOWC 1 according to the first embodiment, the struts 12A to 12H pass through the window holes 31A to 31E and the notch plate from the pocket plate 10 side during overrun. 20, the angle of the slopes 125A to 125H with respect to the lower surface 30b of the selector plates 30A to 30E is set to the angle of the upper surface 121a of the main bodies 121A to 121H of the struts 12A to 12H with respect to the lower surface 30b of the selector plates 30A to 30E. It is preferable to set a larger value. Thus, the stroke amount of an actuator (not shown) that operates the arm 40 can be reduced, and the size and cost of the actuator can be reduced.

  Further, the planar contact portion 126B provided in the SOWC 1B according to the third embodiment may be provided in the SOWC 1 according to the first embodiment. In this case, the plane contact portion 126B may be provided at a position where the lower surface 30b of the selector plate 30 contacts the selector plate 30 when the selector plate 30 is closed (when the SOWC1 is not engaged) in the slope portion 125 of the first embodiment. .

  Further, the planar contact portion 126H provided in the SOWC according to the eighth embodiment may be provided in the SOWC according to the fourth to sixth embodiments. In this case, when the selector plates 30C to 30E are closed (when the SOWC is not engaged), the planar contact portions 126H of the sloped portions 125C to 125F of the fourth to sixth embodiments are turned off. What is necessary is just to provide in the position which the lower surface 30b contacts.

  Further, the planar contact portion 126B provided in the SOWC 1B according to the third embodiment may be provided in the SOWC according to the fourth to eighth embodiments, or provided in the SOWC according to the eighth embodiment. The planar contact portion 126H may be provided in the SOWC according to the first to third embodiments.

  Further, in the SOWC according to the fifth to eighth embodiments, the projecting portions 124E to 124H are formed in a V shape in plan view. The portions 124E to 124H may be formed in a U-shape in plan view.

  In the SOWC according to the first to third embodiments, the protrusions 124 to 124B are not provided to the ends of the main bodies 121 to 121B, and the inner ear 122 and the outer ear are similar to the SOWC 1C according to the fourth embodiment. A flat portion connecting the upper surface 122a of the inner ear portion 122 and the upper surface 123a of the outer ear portion 123 may be provided between the upper and lower portions 123.

  Further, in the SOWC according to the first to third embodiments, similarly to the slope portion 125F of the SOWC 1F according to the sixth embodiment, the slope portions 125 to 125B may be curved.

  In the SOWC1E according to the fifth embodiment, the slope 125E may be provided up to the end of the main body 121E, similarly to the slope 125G of the SOWC1G according to the seventh embodiment.

  In the SOWCs according to the first to eighth embodiments, the upper surface 121a of each of the main body portions 121 to 121H is formed in a gentle curved surface, but the upper surface 121a may be formed in a planar shape.

1,1B, 1C, 1D, 1E, 1F, 1G, 101 Selectable one-way clutch (SOWC)
10 pocket plate 11 pocket (accommodation recess)
11a Inner surface 12, 12A, 12B, 12C, 12D, 12E, 12F, 12G, 12H, 52 Strut (engaging piece)
121, 121A, 121B, 121C, 121E, 121F, 121G, 121H, 521 Body 121a, 521a Top 121b, 521b Side 121c Corner 122, 522 Inner ear (ear)
122a, 522a Upper surface 123, 523 Outer ear (ear)
123a, 523a Upper surface 124, 124A, 124B, 124C, 124D, 124E, 124F, 124G, 124H Projecting portion 124a Upper surface 124b Side surface 125, 125A, 125B, 125C, 125E, 125F, 125G, 125H Slope portion 126B, 126H Plane contact portion 127C, 524b Planar portion 13 Recess 14 Elastic member 15 Notch 20 Notch plate 21 Notch (recess)
30, 30A, 30C, 30D, 30E, 70 Selector plate 30a Upper surface 30b Lower surface 31, 31A, 31C, 31D, 31E, 71 Window hole 31a Inner surface 31b Corner 311, 311A, 311C, 311D, 311E Notch groove 32, 72 Notch Part 40 arm 41 terminal end D11, D12 distance F1 translational force F2 frictional force L1, L2 length My yaw moment S, S1, S2 gap θ11, θ12 rising angles θ21, θ22 angles θ31, θ32 driving angles

Claims (10)

A pocket plate having a plurality of housing recesses formed on one surface,
An engagement piece housed in the housing recess,
A notch plate that is rotatable relative to the pocket plate and has a plurality of engagement recesses formed on a surface facing the one surface of the pocket plate;
It has a plurality of window holes that are located between the pocket plate and the notch plate and penetrates in the plate thickness direction. A selector plate that switches between a state in which the pocket plate is raised from the pocket plate side to the notch plate side and a state in which the engagement piece is housed in the housing recess.
In a selectable one-way clutch comprising
The engagement piece includes a protruding portion that protrudes in a rotation axis direction from a surrounding surface,
The selector plate has a cutout groove formed along the forming direction of the protrusion from the window hole,
When the selectable one-way clutch was not engaged, the notch groove portion was fitted to the protruding portion, and the peripheral surface of the engagement piece and the selector plate overlapped in the rotation axis direction of the selectable one-way clutch. A selectable one-way clutch characterized by a state. The engagement piece,
A main body extending along the circumferential direction of the selectable one-way clutch,
A pair of ears extending from the circumferential end of the main body to opposite sides along the radial direction of the selectable one-way clutch, and serving as a rotation axis when the engagement piece stands up,
With
The main body includes the protrusion protruding from a position on the upper surface of the pair of ears,
2. The selectable according to claim 1, wherein the upper surface of the protrusion contacts the notch plate when the engagement piece rises from the pocket plate side to the notch plate side through the window hole. 3. One-way clutch. The protruding portion has a side surface parallel to a side surface of the main body portion, and is formed up to an end portion of the main body portion on the pair of ears side,
The selectable one-way clutch according to claim 2, further comprising a slope inclined on an upper surface of the pair of ears on both sides of a side surface of the protrusion. The projecting portion has a side surface inclined with respect to a side surface of the main body portion, and is formed in a tapered shape toward an end portion of the main body portion on the pair of ears side,
The selectable one-way clutch according to claim 2, further comprising a slope inclined on an upper surface of the pair of ears on both sides of a side surface of the protrusion. The slope and the protrusion are located side by side in the radial direction,
The selectable one-way clutch according to claim 3, wherein the pair of ears and the protrusion are located side by side in the radial direction.   5. The selectable one-way clutch according to claim 3, wherein the pair of ears, the slope, and the protrusion are located side by side in the radial direction. 6.   The selectable one-way clutch according to any one of claims 3 to 6, wherein the slope portion is formed in a curved shape from a side surface of the protrusion to a side surface of the main body. The slope portion includes a plane contact portion parallel to the lower surface of the selector plate,
The said flat contact part is provided in the position which the lower surface of the said selector plate contacts when the said selectable one-way clutch is disengaged among the said slope parts, The Claim 3 characterized by the above-mentioned. The selectable one-way clutch according to claim 1.   In a state where the engagement piece rises from the pocket plate side to the notch plate side through the window hole, the angle of the slope portion with respect to the lower surface of the selector plate is equal to the angle of the engagement piece with respect to the lower surface of the selector plate. The selectable one-way clutch according to any one of claims 3 to 8, wherein the angle is larger than an angle of the upper surface.   In the radial direction of the selectable one-way clutch, a gap between a side surface of the engagement piece and an inner surface of the window hole is smaller than a gap between a side surface of the engagement piece and a side surface of the housing recess. The selectable one-way clutch according to any one of claims 1 to 9, characterized in that:

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