JP2016094958A - Operation device for transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation device for transmission capable of maintaining a state of excellently pressing operation to an intermittent power mechanism, without increasing an installation space.SOLUTION: An operation device for transmission includes: a slide member 43 sliding along a rotational axial core direction of a friction type intermittent power mechanism 24, and pressing the intermittent mechanism 24; a rotational operation member 45 operating the slide member 43 rotatably around a rotational axial core; a stationary member 35 positioned on the outer peripheral surface side of the slide member 43, and supported to a stationary part; and a cam mechanism 47 positioned between the outer peripheral part of the slide member 43 and the inner peripheral part of the stationary member 35, and slidably moving the slide member 43 in the rotational axial core direction with rotation of the slide member 43 around the rotational axial core.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a transmission operating device for operating a frictional power interrupting mechanism.

  For example, in a work vehicle such as a combine vehicle, a multi-plate friction type parking brake as a friction type power interrupting mechanism is provided inside a transmission case, and the configuration for operating the parking brake is configured as follows. It was.

  That is, an annular slide member that pushes and operates the parking brake along the rotation axis direction is provided in a state of being supported by the transmission case so as to be slidable along the rotation axis direction. A cam mechanism including an engaging ball and a cam groove along the circumferential direction is provided between the end surface on one side and the inner surface of the transmission case. Then, when the slide member is rotated around the rotation axis by the operation member operated in accordance with the operation of the brake pedal, the slide member slides along the rotation axis by the action of the cam mechanism, and the parking brake. (See, for example, Patent Document 1).

JP 2012-62973 A

  In the above configuration, the sliding amount in the direction of the rotation axis accompanying the rotation of the sliding member, that is, the maximum pushing operation amount of the frictional power interrupting mechanism (parking brake) by the sliding member is the moving amount by which the ball is pushed up by the cam groove. In other words, it corresponds to the outer diameter of the ball.

  However, the required push operation amount required to switch the intermittent state of the power interrupting mechanism may change to the large side due to wear of the friction plate of the power interrupting mechanism with long-term use. . As a result, even when the ball rides up to the end of the cam groove, the actual push operation amount due to the action of the cam mechanism may be less than the required push operation amount. In this state, there is a disadvantage that even if the slide member is rotated, the power interrupting mechanism cannot be switched properly.

  In order to avoid such disadvantages, it is conceivable to increase the pushable range by the action of the cam mechanism using a large-diameter ball, but in such a configuration, the installation space along the rotational axis direction However, there is a disadvantage that the size of the slide member is unnecessarily large, and there is a possibility that it is difficult to rotate the slide member.

  Therefore, there has been a demand for a transmission operating device that can maintain a state in which the push operation to the power interrupting mechanism can be favorably performed for a long time without increasing the installation space.

  A characteristic configuration of the transmission operating device according to the present invention includes a slide member that slides along a rotational axis direction of a frictional power interrupting mechanism to push and operate the power interrupting mechanism, and the slide member that moves the rotating shaft core. A rotation operation member that is freely rotatable around, a fixing member that is positioned on the outer peripheral side of the slide member and supported by the fixing portion, and an outer periphery of the slide member and an inner periphery of the fixing member And a cam mechanism that slides the slide member in the direction of the rotational axis as the slide member rotates about the rotational axis.

  According to the present invention, the fixing member is provided on the outer peripheral side of the slide member. As the slide member is rotated by the rotation operation member, the slide member is moved in the direction of the rotation axis by the action of the cam mechanism provided between the outer peripheral portion of the slide member and the inner peripheral portion of the fixing member. It will slide.

  Since the cam mechanism is provided between the outer peripheral portion of the slide member and the inner peripheral portion of the fixed member, the amount of movement operation along the rotational axis direction of the slide member is, for example, a ball cam mechanism of a conventional configuration As described above, it is not caused by the engagement depth between the cam groove and the cam follower (ball), but can be set to an arbitrary movement amount by changing the length of the cam groove.

  As a result, the engagement depth between the cam groove and the cam follower (ball) does not have to be so deep, and there is no possibility that the installation space along the rotational axis direction will be unnecessarily large, and it depends on the cam mechanism. By the engagement guide action, the sliding operation can be smoothly performed along the rotation axis direction of the slide member.

  Accordingly, it has become possible to provide a transmission operating device capable of maintaining a state in which the push operation to the power interrupting mechanism can be favorably performed for a long time without increasing the installation space.

  In the present invention, the cam mechanism includes an engagement recess formed in one of the outer peripheral surface of the slide member and the inner peripheral surface of the fixing member, the outer peripheral surface of the slide member, and the fixing member. On the other of the inner peripheral surfaces, a guide groove formed in a long shape so as to follow a spiral around the axis, and engaged and held in a fixed position in the engagement recess, and spiraled in the guide groove And a ball that is engaged and held in a freely movable manner along the rotation axis, and the rotation of the slide member around the rotational axis causes the engagement guidance between the ball and the guide groove portion, It is preferable that the slide member is configured to slide in the direction of the rotation axis.

  According to this configuration, when the slide member rotates around the rotation axis, the ball is engaged and held in the engagement recess formed on either the outer peripheral surface of the slide member or the inner peripheral surface of the fixed member. The ball is engaged and guided along the guide groove formed on the other of the outer peripheral surface of the slide member and the inner peripheral surface of the fixed member, and the slide member slides in the direction of the rotation axis. Become.

  Thus, since the cam mechanism is configured to guide engagement using a ball as a cam follower, the slide member can be smoothly slid in the direction of the rotation axis with little sliding resistance or the like.

  A characteristic configuration of the transmission operating device according to the present invention includes a slide member that slides along a rotational axis direction of a frictional power interrupting mechanism to push and operate the power interrupting mechanism, and the slide member that moves the rotating shaft core. A rotation operation member that is freely rotatable around, a fixing member that is positioned on an inner peripheral side of the slide member and supported by a fixing portion, an inner peripheral portion of the slide member, and an outer peripheral portion of the fixing member And a cam mechanism that slides the slide member in the direction of the rotation axis as the slide member rotates about the rotation axis.

  According to the present invention, the fixing member is provided on the outer peripheral side of the slide member. Then, as the slide member is turned by the turning operation member, the slide member is moved in the direction of the rotation axis by the action of the cam mechanism provided between the inner periphery of the slide member and the outer periphery of the fixed member. It will slide.

  Since the cam mechanism is provided between the inner peripheral portion of the slide member and the outer peripheral portion of the fixed member, the amount of movement along the rotational axis direction of the slide member is, for example, a ball cam mechanism having a conventional configuration. As described above, it is not caused by the engagement depth between the cam groove and the cam follower (ball), but can be set to an arbitrary movement amount by changing the length of the cam groove.

  As a result, the engagement depth between the cam groove and the cam follower (ball) does not have to be so deep, and the installation space along the direction of the rotation axis does not have to be unnecessarily large. Due to the engagement guide action, the sliding member can be smoothly moved along the rotational axis direction.

  Therefore, it is possible to maintain a state in which the push operation to the power interrupting mechanism can be favorably performed for a long time without increasing the installation space.

  In the present invention, the cam mechanism includes an engagement recess formed in one of an inner peripheral surface of the slide member and an outer peripheral surface of the fixing member, an inner peripheral surface of the slide member, and the fixing member. A guide groove formed in an elongated shape so as to follow a spiral around the axis, and is engaged and held in a fixed position in the engagement recess, and spiraled in the guide groove And a ball that is engaged and held in a freely movable manner along the rotation axis, and the rotation of the slide member around the rotational axis causes the engagement guidance between the ball and the guide groove portion, It is preferable that the slide member is configured to slide in the direction of the rotation axis.

  According to this configuration, when the slide member rotates around the rotation axis, the ball is engaged and held in the engagement recess formed on either the inner peripheral surface of the slide member or the outer peripheral surface of the fixed member. The ball is engaged and guided along the guide groove formed on the other of the inner peripheral surface of the slide member and the outer peripheral surface of the fixed member, and the slide member slides in the direction of the rotation axis. Become.

  Thus, since the cam mechanism is configured to guide engagement using a ball as a cam follower, the slide member can be smoothly slid in the direction of the rotation axis with little sliding resistance.

It is a whole side view of an ordinary combine. It is a longitudinal cross-sectional view of a transmission mechanism. It is a side view which shows a linkage operation mechanism. It is a longitudinal cross-sectional view of the principal part in a transmission mechanism. It is a longitudinal cross-sectional view of a right side clutch brake. It is a figure which shows the rotation operation state of a slide member. It is a perspective view of a slide member. It is a longitudinal cross-sectional view of a mission case upper part.

  Hereinafter, the case where the embodiment of the transmission operating device according to the present invention is applied to a normal combine will be described with reference to the drawings.

  FIG. 1 shows an ordinary combine that harvests rice or wheat. This combine is provided with a traveling machine body equipped with a pair of left and right crawler traveling devices 2 at the lower part of the machine frame 1, and harvested planted cereals to be harvested at the front part of the traveling machine body and conveyed backward. The conveyance unit 3 is connected to be swingable up and down around the horizontal axis. And the threshing apparatus 4 and the threshing apparatus 4 which perform a handling process with respect to the threshing cereal from the harvesting conveyance part 3 on the body frame 1, and perform a selection process with respect to the threshing processed material obtained by the handling process. Tank 5 for storing the grains from the grain, grain discharging device 6 for discharging the grains stored in the grain tank 5 to the outside of the machine, the driving unit 7 on which the operator gets on and operates Is provided.

  The operation part 7 is located on the right side of the front part of the machine body, and the grain tank 5 is located behind the operation part 7. The threshing device 4 and the grain tank 5 are arranged in the left-right direction with the threshing device 4 located on the left side and the grain tank 5 located on the right side. A driving engine 8 is provided below the operation unit 7, and the power of the engine 8 is transmitted to each unit.

  The cutting and conveying unit 3 divides the planted cereals into planted cereals that are to be harvested and planted cereals that are not to be harvested, and the planted cereals that are to be harvested. Rotating reel 10 scraped toward the rear, clipper-shaped cutting device 11 for cutting the planted side of the planted culm to be harvested, and collecting the chopped cereal after cutting at a predetermined position on the center side in the left-right direction And a feeder 13 that conveys the harvested cereal meal toward the threshing device 4 and the like. The cutting and conveying unit 3 is supported by the hydraulic cylinder 14 so as to be movable up and down around the horizontal axis.

  Although not described in detail, the threshing device 4 is configured to handle the harvested cereals conveyed from the feeder 13 and then sort the processed products into grains, second products, waste straws, and the like. Yes. The grain is stored in the grain tank 5, and after the harvesting operation is finished, the grain stored in the grain tank 5 is discharged out of the machine by a grain discharging device 6 which is a screw type conveying device having a well-known structure.

[Transmission mechanism]
A mission case 15 that transmits driving force to the left and right crawler traveling devices 2 is disposed at the center position in the left-right direction at the front position of the traveling machine body. As shown in FIG. 2, a hydrostatic continuously variable transmission 16 is connected to an upper portion of the transmission case 15, and the driving force of the engine 8 is transmitted to the continuously variable transmission 16, so that the continuously variable transmission 16 Is transmitted to the mission case 15.

  As shown in FIG. 2, the gear transmission type sub-transmission device 18 that shifts the power from the output shaft 17 of the continuously variable transmission 16 in three stages of high speed, medium speed, and low speed, and the relay transmission gear from the sub transmission 18. The power from the left and right side clutch brakes 20 transmitted via the pair of left and right side clutch brakes 20 and the input gear 22a is selectively transmitted to the left and right crawler travel devices 2 after the shift. A pair of left and right speed reduction mechanisms 22 that transmit the speed to the left and right travel drive shafts 21 are provided.

  As shown in FIG. 8, the lubricating oil is stored inside the mission case 15, and the upper surface L of the lubricating oil is set to be the vertical position corresponding to the auxiliary transmission 18. As indicated by the phantom line Q in FIG. 8, the drive side gear 18 </ b> A and the driven side gear 18 </ b> B in the auxiliary transmission 18 direct the lubricant toward the stored oil side that moves away from the wall surface of the transmission case 15 as it rotates. The rotation direction of each gear is set so that the lubricating oil is stirred in the state of being carried around.

  As shown in FIG. 4, each side clutch brake 20 brakes the corresponding crawler traveling device 2 and the meshing side clutch 23 that intermittently transmits power from the relay transmission gear 19 to the corresponding crawler traveling device 2. A multi-plate type side brake 24 is provided. The left side clutch brake 20 acts on the left crawler travel device 2 via the left speed reduction mechanism 22 and the left travel drive shaft 21, and the right side clutch brake 20 is connected to the right speed reduction mechanism 22 and the right side. It is comprised so that it may act on the crawler traveling apparatus 2 on the right side via the traveling drive shaft 21.

  When the traveling machine body travels straight, the left and right side clutches 23 are engaged together, and the pair of left and right crawler traveling devices 2 are rotationally driven at the same speed. Further, when turning, the side clutch 23 corresponding to the crawler traveling device 2 inside the turning is switched to the disengaged state, the rotational speed is reduced, and the vehicle slowly turns, or the side brake corresponding to the crawler traveling device 2 inside the turning. It is possible to make a sudden turn with the brake 24 in a braking state.

  As shown in FIG. 4, each side clutch 23 includes a cylindrical shaft 26 that is externally fitted to the clutch transmission shaft 25, a moving-side rotating body 27 having a meshing portion 27 </ b> A at one end, and a meshed portion 28 </ b> A. And a compression spring 29 that urges the moving-side rotator 27 toward a position where the meshing portion 27A and the meshed portion 28A mesh with each other. Then, when the corresponding moving side rotating body 27 slides to the entry position by the action of the compression spring 29, the meshing portion 27A of the moving side rotating body 27 and the meshed portion 28A of the fixed side rotating body 28 mesh with each other. By switching to the state and sliding to the cutting position against the action of the compression spring 29, the meshing portion 27A of the moving side rotating body 27 and the meshed portion 28A of the fixed side rotating body 28 release the meshing. It is configured to switch to the shut-off state.

  When the side clutch 23 is switched to the transmission state, the power transmitted to the clutch transmission shaft 25 via the relay transmission gear 19 is transmitted to the fixed side rotating body 28, the moving side rotating body 27, the cylindrical shaft 26, the speed reduction mechanism 22, And it is transmitted to the travel drive shaft 21, and the crawler travel device 2 is driven.

  Each side brake 24 includes a plurality of separator plates 31 that are externally fitted to a brake hub 30 that rotates integrally with the cylinder shaft 26, a plurality of separator plates 31, a plurality of brake disks 32 that are arranged alternately in the axial direction, and a single A pressure plate 33 and a brake housing 34 for supporting them are provided.

  When the moving side rotating body 27 is moved to the left and right center side, a braking state in which the plurality of separator plates 31 and the brake disc 32 are pressed against each other by pressing the plurality of separator plates 31 and the brake disc 32 via the pressure plate 33. Switch to Further, when the movement operation of the moving side rotating body 27 to the left and right center side is stopped, the operation is switched to the brake release state by the action of the compression spring 29. In FIG. 4, for the sake of easy understanding, the left side in the drawing represents the braking release state, and the right side represents the braking state.

  The transmission case 15 allows passage of a separator plate 31, a brake disc 32, a pressure plate 33, and the like at locations facing the side clutch brakes 20 in the axial direction of the clutch transmission shaft 25 on the left and right side walls. Opening 15A is formed. A cover member 35 that closes the opening 15A is detachably attached by bolt connection.

  Each of the left and right cover members 35 includes an auxiliary opening 35A that allows passage of the fixed-side rotating body 28, and an auxiliary cover member 36 that closes the auxiliary opening 35A is detachably provided by bolt connection. Each auxiliary opening 35 </ b> A is formed in a circular shape centered on the axis of the clutch transmission shaft 25. Each auxiliary cover member 36 includes a large-diameter portion 36 </ b> A that fits inside the auxiliary opening 35 </ b> A, and a small-diameter portion 36 </ b> B that forms an annular oil chamber 37 between the cover member 35. And the bearing 38 which supports the edge part of the transmission shaft 25 for clutches is provided in the inside of the small diameter part 36B.

  Between the inner periphery of the cover member 35 and the outer periphery of the small-diameter portion 36B of the auxiliary cover member 36, an annular piston 39 that slides the moving side rotating body 27 is provided. Is supplied, the piston 39 slides in the axial direction of the clutch transmission shaft 25, and by this sliding, the corresponding moving side rotating body 27 is slid in the axial direction of the clutch transmission shaft 25. Thus, the side clutch 23 is switched to the disconnected state, and the side brake 24 is switched to the braking state. The pressure oil is controlled by a hydraulic control valve (not shown) based on the operation of the turning operation lever.

[Parking brake]
Of the pair of left and right side brakes 24, the right side brake 24 (an example of a frictional power interrupting mechanism) is configured to function as a parking brake. Even when the engine 8 is stopped, the side brake 24 can maintain the state by switching the left and right crawler travel devices 2 to the braking state by human operation.

That is, the right side brake 24 is linked to the brake pedal 42 via a mechanical linkage mechanism.
As shown in FIG. 5, the transmission case 15 includes a right cover member 35 as a fixing member supported by the mission case 15 as a fixing portion and a right cover member 35 so as to act on the pressure plate 33. The fitted ring-shaped slide member 43 and the slide member 43 are connected to a brake operation shaft 45 as a rotation operation member that rotates about the axis of the clutch transmission shaft 25 and a right end portion of the brake operation shaft 45. The linkage arm 46 and a cam mechanism 47 that acts to convert the rotation of the slide member 43 into the sliding of the slide member 43 in the left-right direction are provided.

  The cam mechanism 47 includes an engagement concave portion 48 formed on the inner peripheral surface of the cover member 35, and a guide groove portion 49 formed on the outer peripheral surface of the slide member 43 so as to extend along the spiral around the axis. And a ball 50 that is engaged and held in a fixed state in the engagement recess 48 and that is movable and held in a guide groove 49 so as to follow a spiral. The slide member 43 is configured to slide and move in the direction of the rotation axis by the engagement guide between the ball 50 and the guide groove portion 49 in accordance with the rotation at.

  As shown in FIG. 7, the slide member 43 is formed in a ring shape and is slid on the inner peripheral surface of the brake housing 34 and the large diameter portion 43 </ b> A that is slidably fitted to the inner peripheral surface of the cover member 35. And a small-diameter portion 43B that is movably fitted therein. Three guide groove portions 49 are formed on the outer peripheral surface of the large diameter portion 43A at equal intervals in the circumferential direction. The guide groove 49 is formed in a long shape so as to follow a spiral around the axis.

  As shown in FIGS. 5 and 6, an operation surface 45 a is formed on the inner shaft end portion of the braking operation shaft 45 by cutting out a part of the braking operation shaft 45 along the substantially radial direction. In addition, a concave contact action surface 43c with which the operation surface 45a contacts is formed in the middle portion of the slide member 43 in the circumferential direction of the large diameter portion 43A. With this structure, when the braking operation shaft 45 is rotated, the operating force from the operation surface 45a is transmitted to the contact surface 43c of the slide member 43, and the slide member 43 is rotated about the rotation axis. Can be made.

  The engagement recess 48 of the cover member 35 is formed as a recess that enters and engages the ball 50 so as not to move in the axial direction so that the ball 50 can be engaged and held in a fixed position. Specifically, as shown in FIG. 5, a through hole 51 that penetrates in the radial direction is formed in the cover member 35, and a screw member 52 is attached to the through hole 51 from the outer peripheral side, and the screw The bottom of the engagement recess 48 is formed on the tip side of the member 52. By comprising in this way, the penetration depth of the engagement recessed part 48 can be changed and adjusted.

  As shown in FIG. 3, outside the transmission case 15, one end is integrally connected to the brake pedal 42, and the balance swinging arm is swingable around the axis of the lateral rotation support shaft 53. 54, the operation rod 56 linked to the other end of the balance swinging arm 54 via a compression spring 55 for absorbing the stroke, the brake pedal 42 and the balance swinging arm 54 are returned to the depressed release position and biased. A return spring 57 is provided.

  When the brake pedal 42 is depressed from the depression release position indicated by the solid line in FIG. 3 to the depression position indicated by the phantom line in FIG. The operating rod 56 is pulled upward, and the linkage arm 46 swings from the braking release position (OFF) to the braking position (ON). The braking operation shaft 45 rotates forward in conjunction with the operation, and the slide member 43 rotates forward in conjunction with the forward rotation (see FIG. 6). When the slide member 43 rotates in the forward direction, the slide member 43 slides in the left direction in FIG. 6 along the rotation axis direction by the action of the cam mechanism 47. Then, the pressure plate 33 is pressed, and the right side brake 24 is switched from the brake release state to the brake state.

  At the time of braking operation of the right side brake 24, the vehicle body is stopped traveling and no turning operation is performed, so that the left and right side clutches 23 are engaged. As a result, the right side brake 24 acts on the left and right crawler traveling devices 2 to exert a braking force.

  When the depression operation of the brake pedal 42 is released, the braking operation shaft 45 is reversely rotated by the urging force of the return spring 57 in conjunction with the operation, and the pressure on the pressure plate 33 is released. Then, the right side brake 24 is switched from the braking state to the braking release state.

  As described above, the guide groove portion 49 formed on the outer peripheral surface of the large-diameter portion 43A of the slide member 43, the engagement concave portion 48 formed on the inner peripheral surface of the cover member 35, and the ball 50 that enters and engages them. The cam mechanism 47 is configured. In this configuration, the movement operation amount along the rotation axis direction accompanying the rotation of the slide member 43 is set to an arbitrary movement amount by changing the length of the guide groove portion 49 regardless of the outer diameter dimension of the ball 50. It becomes possible to do.

  As a result, the engagement depth between the guide groove 49 and the ball 50 does not have to be so deep, and the ball 50 can be made small, and even if the operation stroke is increased, the rotation is possible. The installation space along the axial direction can be made compact.

  When the brake pedal 42 is depressed to an area exceeding the braking position, a lock mechanism 58 is provided to maintain this depressed state. The lock mechanism 58 includes a lock plate 60 that is swingably supported around a shaft body 59 that is in a lateral orientation, and a lock operation arm 61 that is coupled to the lock plate 60. An engagement recess 62 is formed in the lock plate 60, and a lock pin 63 that can be freely engaged with and disengaged from the engagement recess 62 protrudes from a side surface of the brake pedal 42.

  Although not shown, a release spring for urging the lock plate 60 in the release direction is provided. When the lock pin 63 is engaged with the engagement recess 62 and the lock operation arm 61 is released, the brake pedal 42 is maintained at the braking position by the engagement action by the release urging force.

  When releasing the braking state by the right side brake 24, the engagement recess 62 is detached from the lock pin 63 by the operation of the lock operation arm 61, and the brake pedal 42 is moved to the non-operation position by the urging force of the return spring 57. It returns and the braking force is also released.

[Another embodiment]
(1) In the above embodiment, the cam mechanism 47 is configured such that the slide member 43 is positioned on the radially inner side and the fixing member (cover member 35) is positioned on the radially outer side. Instead, the slide member 43 may be positioned on the radially outer side, and the fixing member may be positioned on the radially inner side.

  That is, although not shown, an engagement recess is formed on the inner peripheral surface of the slide member, and a long guide groove portion along the spiral around the axis is formed on the outer peripheral surface of the fixing member. The engagement recess may be engaged and held in a fixed position, and the guide groove may be engaged and held in a movable state along a spiral.

(2) In the above embodiment, the guide groove portion 49 is formed in the slide member 43 and the engaging recess 48 is formed in the fixing member (cover member 35), but instead of this configuration, the slide member 43 is engaged. It is good also as a structure which forms the recessed part 48 and forms the guide groove part 49 in the outer peripheral surface of a fixing member (cover member 35).

(3) In the above embodiment, the cam mechanism is configured to use a ball for the cam follower. However, instead of the ball, a round bar-shaped pin may be used, and either the slide member or the fixed member may be spiral. The present invention can be implemented in various forms, such as a configuration in which a helical engagement concave portion is formed and a helical engagement concave portion that can be engaged with and engaged with the engagement convex portion is formed on the other side.

(4) In the above-described embodiment, the case where one of the pair of left and right side brakes 24 is made to function as a parking brake is described as a frictional power interrupting mechanism. Not only the configuration but also various configurations can be used.
For example, a dedicated parking brake provided separately from the pair of left and right side brakes 24 may be used, or a power transmission clutch mechanism for intermittently transmitting the driving force may be used instead of the brake. Good.

(5) Although what was applied to the combine was shown in the said embodiment, not only a combine but the present invention can be applied to various working machines, such as a tractor and a rice transplanter.

  The present invention can be applied to a transmission operating device for operating a frictional power interrupting mechanism such as a friction brake or a friction clutch.

24 Power Intermittent Mechanism 35 Fixing Member 43 Slide Member 45 Rotating Operation Member 47 Cam Mechanism 48 Engaging Recess 49 Guide Groove 50 Ball

Claims (4)

A slide member that slides along the rotational axis direction of the frictional power interrupting mechanism and pushes the power interrupting mechanism;
A rotation operation member capable of freely rotating the slide member around the rotation axis;
A fixing member located on the outer peripheral side of the slide member and supported by the fixing portion;
The slide member is positioned between the outer peripheral portion of the slide member and the inner peripheral portion of the fixed member, and the slide member is slid in the direction of the rotation axis as the slide member rotates around the rotation axis. A transmission operating device comprising a cam mechanism for movement. The cam mechanism is
An engagement recess formed in one of the outer peripheral surface of the slide member and the inner peripheral surface of the fixing member;
On the other of the outer peripheral surface of the slide member and the inner peripheral surface of the fixing member, a guide groove portion formed in a long shape so as to follow a spiral around the axis,
A ball that is engaged and held in a fixed position in the engagement recess, and that is held in a movable state along the spiral along the guide groove,
The slide member is configured to slide in the direction of the rotation axis by the engagement guide between the ball and the guide groove as the slide member rotates around the rotation axis. Item 1. The transmission operating device according to Item 1. A slide member that slides along the rotational axis direction of the frictional power interrupting mechanism and pushes the power interrupting mechanism;
A rotation operation member capable of freely rotating the slide member around the rotation axis;
A fixing member located on the inner peripheral side of the slide member and supported by the fixing portion;
The slide member is positioned between the inner peripheral portion of the slide member and the outer peripheral portion of the fixed member, and the slide member is slid in the direction of the rotation axis as the slide member rotates around the rotation axis. A transmission operating device comprising a cam mechanism for movement. The cam mechanism is
An engagement recess formed in one of the inner peripheral surface of the slide member and the outer peripheral surface of the fixing member;
On the other of the inner peripheral surface of the slide member and the outer peripheral surface of the fixing member, a guide groove portion formed in a long shape so as to follow a spiral around the axis,
A ball that is engaged and held in a fixed position in the engagement recess, and that is held in a movable state along the spiral along the guide groove,
The slide member is configured to slide in the direction of the rotation axis by the engagement guide between the ball and the guide groove as the slide member rotates around the rotation axis. Item 4. The transmission operating device according to Item 3.

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