KR950003582B1 - Change-speed gearing control device - Google Patents

Abstract

No content.

Description

Gearbox controls

1 is a longitudinal sectional view showing a shift mechanism part of a transmission operating device according to a first embodiment of the present invention.

2 is a longitudinal sectional view showing a shift actuator provided in the shift mechanism portion;

3 is a longitudinal sectional view showing a damper mechanism provided in the shift mechanism portion.

4 is a longitudinal sectional view showing a damper mechanism provided in the shift mechanism portion according to the second embodiment of the present invention.

5 is a longitudinal sectional view showing a shift mechanism part of a transmission operating device according to another embodiment of the present invention.

6 is a longitudinal sectional view showing a shift actuator and a damper mechanism provided in the shift mechanism portion.

Fig. 7 is a longitudinal sectional view showing a shift actuator and a damper mechanism provided in the shift mechanism portion according to the second embodiment of the present invention.

8 is a longitudinal sectional view showing a shift actuator and a damper mechanism provided in a shift mechanism portion of a transmission operating apparatus according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1,8 cylinder housing 2: shift rod

6: Rotating lever 7: Shift actuator

9: output load 10: output lever

12: fixed piston 13: moving piston

14,15,16: pressure chamber 18: sleeve

19: casing 20: opening

21: damper force applying member 22: damper mechanism

23: damper housing 24: insertion hole

25: bulkhead 26: pressure fluid chamber

27: damper piston 28,29: damper chamber

30,31: orifice

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a transmission operating device, and in particular, a transmission operation provided by providing a damper mechanism for directly or indirectly applying a damper force to a shift rod having a shift actuator. Relates to a device.

In a conventional transmission operating device using fluid pressure (especially pneumatic pressure), since a large shift operation force is required at the time of gear input, if the shift operation is performed with this large shift operation force even after completion of synchronization, a gear collision will occur. It occurred, and the case where the transmission or the control device was damaged by the collision force occurred. Therefore, conventionally, the solution which provides an oil damper mechanism in a transmission operation apparatus, and solves the said unsuitable thing in the damper action of this oil damper mechanism is proposed.

By the way, in the conventional transmission operation apparatus mentioned above, since the oil damper mechanism is located on the axis line of a shift rod, and is directly provided in the said shift rod, it becomes easy to be influenced by coaxiality. If the coaxiality is poor, the damper piston interferes with the damper cylinser, and the damper piston is stuck by the wear of the damper cylinder and the damper piston, or oil leaks from the damper cylinder. Appear phenomenon. As a result, the damper action of the oil damper mechanism is not effectively performed, and an improper force is generated or an abnormality such as the normal operation of the transmission operating device is disturbed by the oil damper mechanism is generated. That is, the oil damper mechanism must be securely disposed on the axis of the shift rod, and attention must be paid to the pasting operation. Therefore, there is a drawback that the efficiency of the pasting operation can be improved. In addition, since the oil damper mechanism regulates the operating speed of the apparatus main body, the oil damper mechanism has an unsuitable lengthening speed time.

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and an object thereof is to eliminate the inadequateness of the coaxiality of the shift rod and the damper mechanism, and to increase the degree of freedom of the layout of the damper mechanism and to shorten the shift time. It is to provide a transmission operating apparatus which is possible.

In order to solve the above problems of the prior art, in the present invention, a damper mechanism is provided which performs a damper action after providing a shift rod driven by a shift actuator and moving the shift rod a predetermined amount from a neutral position. In the transmission operating device provided, the end of the electric shift rod is integrally provided with a damper force applying member, and the electric damper mechanism is provided separately from the electric shift rod in connection with the damper force applying member, and the electric damper is provided. The damper piston is disposed in the housing of the mechanism, communicates with the pressure fluid chamber via damper chamber orifices formed on both sides of the damper piston, and at the same time, the tip of the electric damper force applying member and the electric damper piston. And the damper force in the electric damper mechanism after the electric shift rod has moved a predetermined amount from the neutral position. By way of the electric damper-force applying member is configured to give the de-shift.

In still another aspect of the present invention, there is provided a shift rod driven by a shift actuator, and a gear shift device including a damper mechanism that performs a damper action after the shift rod moves a predetermined amount from a neutral position. A damper force applying member is integrally provided on the output rod of the actuator, and an electric damper mechanism is provided in relation to the damper force applying member, a damper piston is disposed in the housing of the electric damper mechanism, and both sides of the damper piston are provided. The damper chamber formed in the main body is connected to the pressure fluid chamber via an orifice, and at the same time, the tip of the electric damper force applying member and the electric damper piston are connected to each other, and after the electric shift rod moves a predetermined amount from the neutral position, the electric damper mechanism To provide the damper force to the shift rod through the electric damper force applying member and the output rod. It can control.

Moreover, another invention is provided in the transmission operating apparatus provided with the shift rod driven by the shift actuator, and providing the damper mechanism which performs a damper function after the shift rod moves a predetermined amount from a neutral position, and is electric shift. An electric damper mechanism is provided on an extension line of the output rod of the actuator, and a damper piston having a reverse displacement control valve is disposed in the housing of the damper mechanism, and the damper piston is formed into a damper chamber and a pressure fluid chamber in the electrical housing. At the same time, the spring is brought into contact with the electric output rod by the force of the spring returning the piston rod of the electric damper piston, and after the electric shift rod is moved a predetermined amount from the neutral position, the damper force in the electric damper mechanism is applied to the electric piston rod and the output rod. It is configured to intervene and impart to the shiftload.

In the transmission operating apparatus of the present invention, the damper mechanism is provided separately from the shift rod, and after the shift rod is moved a predetermined amount from the neutral position, the damper force is transferred from the damper mechanism through a damper applying member, a piston rod, or the like to shift the rod. Since the coaxiality of the shift rod and the damper mechanism is not bad, it is possible to eliminate various inadequacies based on the coaxial failure, and the layout of the damper mechanism can be freely performed. At the same time, the shift time can be shortened.

EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates in detail based on the Example which shows this invention.

1 to 3 show a first embodiment of a transmission operating apparatus according to the present invention.

This operating device has a cylinder housing 1 for shift operation provided on a housing upper surface of a transmission (not shown), in which the shift rod 2 is rotatable about its axis. Being supported. A spline is formed in the middle part of this shift rod 2, and the gear shift lever 4 is provided in this spline part 3 so that a movement is possible. However, the gear shift lever 4 can be moved along the axial direction of the shift rod 2 via the select lever 5 by a select operation of a select rod (not shown), and the shift operation is performed at a desired select position. It is configured to be done.

In addition, one end of the shift rod 2 is integrally provided with an upper end of the rotation lever 6, and a shift actuator 7 for rotating the shift rod 2 through the rotation lever 6 is provided. ) Is connected. This actuator 7 is arranged in the direction orthogonal to the shift rod 2, and has the cylinder housing 8 fixed to the opening end 1a of the cylinder housing 1 for shift operation.

In this cylinder housing 8, the output rod 9 is supported by sliding along the axial direction. On the outer periphery of the middle of the output rod 9, an output lever 10 is connected to the lower end of the rotation lever 6, and when the output lever 10 moves together with the sliding of the output rod 9, The shift rod 2 is made to rotate through the rotation lever 6. In addition, the cylinder housing 8 is located in front of the fixed piston 12 and the output rod 9 which are fixed to the snap ring 11 at the outer periphery of the output rod 9, and is sealed. A pre-piston 13 having a seal member 8a is disposed to face the fixed piston 12, and the three pressure chambers are provided by the fixed piston 12 and the free piston 13. 14), (15) and (16) are in harmony.

However, each of the pressure chambers 14, 15, and 16 of the shift actuator 7 is connected to an air tank through an electronic switching valve (not shown), and the electronic switching valve is selectively selected. For example, when extruded air is supplied only to the pressure chamber 14, the output rod 9 moves to the left in FIG. 2. In addition, if compressed air is supplied only to the pressure chamber 15, the output rod 9 will move to the right direction in FIG. Moreover, when compressed air is supplied to the pressure chambers 14 and 16, the output rod 9 is fixed to the neutral position without moving to the left and right directions. That is, since the shift rod 2 is rotationally driven to the actuator 7 in three shift positions, the operating device is configured to obtain a desired gear shift of the gear when one of the three shift positions is selected. . Moreover, the stroke sensor 17 which detects the stroke position of the said output rod 9 is arrange | positioned at the other end side of the output rod 9.

On the other hand, the other end of the shift rod 2 protruding from the cylinder housing 1 is rotatable to the other end opening 1b of the cylinder housing 1 for shift operation via a sleeve 18. A supporting casing 19 is fixed, and an opening 20 is formed in the lower surface of the casing 19. However, at the other end of the shift rod 2, a damper force applying member 21 for imparting a damper force of the damper mechanism described later to the shift rod 2 is integrally provided through the sleeve 18. The damper force applying member 21 is disposed orthogonal to the shift rod 2, and the proximal end 21a can be attached to the sleeve 18 and is usually formed, so that the distal end portion 21b has a third shape. As shown in the figure, it is possible to rotate with the shift rod 2 in the same direction (direction perpendicular to the axial direction of the shift rod 2).

In the lower part of the casing 19, a damper mechanism 22 is provided separately from the shift rod 2 in relation to the damper force applying member 21. The damper mechanism 22 has a hollow damper housing 23 fixed to the lower surface of the casing 19, as shown in FIG. 3, and the opening of the casing 19 on the upper surface of the housing 23. Corresponding to 20, an insertion opening 24 is formed. Inside the damper housing 23, two upper and lower chambers formed by the partition wall 25 extending in the horizontal direction are provided, and the upper chamber is a pressure fluid chamber 26 for filling a pressure fluid. In the lower chamber, damper pistons 27 are provided with sliding materials, and the damper pistons 27 are formed on the left and right sides of the two damper chambers 28 and 29. The damper chambers 28 and 29 communicate with the pressure fluid chamber 26 via the orifices 30 and 31 which are located in the partition walls 25.

Moreover, the hollow 32 is formed in the substantially center part of the damper piston 27 in the axial direction, and the damper piston 27 is inserted by inserting the front-end | tip part 21b of the damper force applying member 21 in this hollow 32. As shown in FIG. ) And the damper force applying member 21 are configured to connect with each other. In addition, the damper piston 27 is blocked by the damper piston 27 so as not to communicate with the pressure fluid chamber 26 and the damper chambers 28, 29, orifices 30, 31.

In the transmission operating apparatus of the present embodiment, first, the gear shift lever 4 is shifted to the select lever 5 at the time of gear input of a transmission (not shown) from the neutral position to the shift position. The selector is operated by moving it to the desired select position along the axial direction. Subsequently, when the shift rod 7 is operated to slide the output rod 9, the shift rod 2 rotates by a predetermined amount at the neutral position via the output lever 10 and the rotation lever 6. Accordingly, since the damper force applying member 21 also rotates in the same direction with the seat rod 2, the damper piston 27 of the damper mechanism 22 slides in the left direction and the pressure fluid of the damper chamber 28 Flows through the orifice 30 into the pressure fluid chamber 26, and a damper action is performed.

However, after the shift rod 2 is rotated a predetermined amount in the neutral position, the damper force in the damper mechanism 22 is applied to the shift rod 2 via the damper force applying member 21. This damper force acts as a reaction force of the shift operation force, acts in the reverse direction of the shift direction of the gear shift lever 4, and turns off the shift operation force immediately after the completion of synchronization, thereby eliminating gear collision during gear insertion and smooth shift operation. Can be done.

In the transmission operating apparatus of the present embodiment, since the damper mechanism 22 is provided separately from the shift rod 2 and is separately provided and connected to the shift rod 2 via the damper force applying member 21, the shift rod (2) and the damper action of the damper mechanism 22 are effectively performed without the problem that the coaxial degree of the damper mechanism 22 is bad, and normal operation is not prevented by the presence of the damper mechanism 22. FIG.

4 shows a second embodiment of the transmission operating apparatus according to the present invention. In the lower chamber formed in the housing 23 of the damper mechanism 22, the tip portion 21b of the damper force applying member 21 is provided. A pair of damper pistons 37 and 38 which are disposed to face each other are provided as sliding materials. The damper pistons 37 and 38 are always attached to the damper force applying member 21 side by the return springs 39 and 40 provided in the damper chambers 28 and 29.

Moreover, the communication paths 43 and 44 which provided the reverse direction 41 and 42 were formed in the damper piston 37 and 38 inside, and this communication path 43 and 44 is provided. And the pressure fluid chambers 26 and the damper chambers 28 and 29 communicate with each other when the reverse valves 41 and 42 are opened. The check valves 41 and 42 are always urged on the toilet seats 43a and 44a by the bushing springs 45 and 46, and the pressure fluid of the pressure fluid chamber 26 is a damper piston 37. (38) flows through the damper chamber (28) and (29), and the pressure fluid in the damper chamber (28) and (29) passes through the damper pistons (37) and (38) to the pressure fluid chamber (26). It does not flow. The rest of the configuration is almost the same as in the above embodiment.

In the damper mechanism 22 of this embodiment, when the damper force applying member 21 rotates clockwise with the shift rod 2, for example, in FIG. Since the damper piston 37 of the damper piston 37 slides in the left direction against the counter force of the spring 39 which returns the reverse side 41 as it is closed, the pressure fluid of the damper chamber 28 passes through the orifice 30. It flows to 26, and a damper action is performed. On the other hand, when the gear of the transmission is pulled out (when moving from the shift position to the neutral position), the damper piston 37 on the left side slides to the left due to the force of the returning spring 39, so that the shift rod 2 ) Rotates counterclockwise through the damper force applying member 21 and returns to the neutral position. At this time, since the pressure fluid in the pressure fluid chamber 26 presses the reverse displacement 41 through the communication path 43, the reverse displacement 41 is the left edge 43a against the bias force of the bushing spring 45. Ivan from However, since the pressure fluid chamber 26 and the damper chamber 28 communicate with each other via the communication path 43 of the damper piston 37, the damper piston 37 moves smoothly in the right direction. When the damper force applying member 21 rotates in the counterclockwise direction in FIG. 4, the right damper piston 38 performs the same operation with the damper piston 37 on the left reversed in the moving direction. The rest of the action is almost the same as in the above embodiment.

According to the transmission operating device of the present embodiment, the shift rod 2 is neutral due to the force of the springs 39 and 40 to which the damper pistons 37 and 38 of the damper mechanism 22 return when the gear is removed. Since it can return to a position and moves and presses the front-end | tip part 21b of the damper applying member 21, it becomes possible to perform a quick shift operation and can shorten a shift time.

5 and 6 show a first embodiment of another transmission operating apparatus according to the present invention, wherein the damper mechanism 22 is provided in the shift actuator 7. That is, under the output lever 10, a damper on the rod which imparts the damper force of the dam opening mechanism 22 to the shift rod 2 via the output rod 9, the output lever 10 and the rotation lever 6. The force applying member 51 is integrally installed. For this reason, the damper force applying member 51 moves together in the same direction as the output rod 9 slides.

In addition, the damper force applying member 51 is disposed in direct line with the output rod 9, and the tip portion 51a protrudes downward from the long hole 52 provided in the lower portion of the cylinder housing 8. However, the damper force applying member 51 and the damper piston 27 are connected to each other by inserting the tip portion 51a into the hollow 32. Moreover, the long hole 52 is extended along the axial direction of the output rod 9, and the damper force applying member 51 which does not move does not interfere with the cylinder housing 8. The rest of the configuration is almost the same as in the first embodiment of the invention described above.

In the transmission operating apparatus of the present embodiment, the shift rod 2 is moved when the output rod 9 is moved in the left direction in FIG. 6 by operating the shift actuator 7 in performing gear input of a transmission (not shown). Rotates a predetermined amount in the neutral position via the output lever 10 and the rotation lever 6. In addition, since the damper force applying member 51 also moves in the same direction with the output rod 9, the damper piston 27 of the damper mechanism 22 slides in the left direction, and the pressure fluid of the damper chamber 28 Flows into the pressure fluid chamber 26 through the orifice 30, and a damper action is performed.

However, after the shift rod 2 is rotated a predetermined amount in the neutral position, the damper force in the damper mechanism 22 is reduced by the damper applying member 51, the output rod 9, the output lever 10, and the rotation lever 6. Is given to the shift rod 2 via. This damper force acts as a reaction force of the shift operation force, acts in the opposite direction to the shift direction of the gear shift lever 4, and moves to turn off the shift operation force immediately after synchronization is completed. The rest of the action is almost the same as in the first embodiment of the invention described above.

7 shows a second embodiment of a transmission operating device according to another embodiment of the present invention. In the second embodiment of the present invention, a damper mechanism 22 is provided on the shift actuator 7 side. That is, the present embodiment has a configuration in which the arrangement structure of the damper mechanism 22 shown in FIG. 4 and the damper mechanism 22 shown in FIGS. 5 and 6 is combined, and the operation thereof is almost the same, and description thereof is omitted. do.

8 shows an embodiment of a transmission operating device according to another embodiment of the present invention, wherein the damper mechanisms 62 and 63 are installed on extension lines on the left and right sides of the output rod 9 of the shift actuator 7. It is. The damper housing 64a of the damper mechanism 62 on the left side is formed in the box shape of the opening once, and is integrally provided in the side surface of the cylinder housing 8 of the actuator 7. Moreover, the damper housing 64b of the damper mechanism 63 on the right side is formed in the box shape of one end opening like the housing 64a of the left side, and is integral with the casing 17a of the stoch sensor 17. Formed. However, since the configurations of the left and right damper mechanisms 62 and 63 are almost the same, only the left damper mechanism 62 will be described.

Inside the damper housing 64b of the damper mechanism 62, two upper and lower chambers formed by the partition wall 65 are provided, and the upper chamber is a pressure fluid chamber 66 that fills the pressure fluid. In the lower chamber, a damper piston 67 having a reverse variable displacement control valve is disposed as sliding material, and a damper chamber 68 is formed by the damper piston 67 and the inner wall of the housing 64a. It is. Moreover, the seal member 69 which closes the opening of one end of the housing 64a is provided in the lower seal.

The damper piston 67 has a piston rod 70 extended in one direction, and an end portion of the piston rod 70 penetrates the seal member 69 and the cylinder housing 8 of the actuator 7. The free piston 13 abuts and engages with the output rod 9 via the free piston 13. However, the piston rod 70 is always attached to the free piston 13 side via the damper piston 67 by the return spring 71 provided in the damper chamber 68.

On the other hand, inside the damper piston 67, a communicating portion 73 is provided with a reverse displacement 72 is formed, and the through hole provided in the communicating portion 73, the reverse displacement 72 and the partition wall 65 ( Through 74, the pressure fluid chamber 66 and the damper chamber 68 communicate with the start of the reverse displacement 72. In addition, an orifice 75 is formed in the reverse displacement 72, and the pressure fluid chamber 66 and the damper chamber 68 are always in communication with the orifice 75.

The reverse direction 72 is always urged by the member spring 76 to the toilet seat 73a side, and the pressure fluid of the pressure fluid chamber 66 flows into the damper chamber 68 through the damper piston 67, The pressure fluid of the damper chamber 68 flows to the pressure fluid chamber 66 only through the orifice 75 in the damper piston 67. However, the reverse displacement classification amount control edge is constituted by the reverse displacement 72 and the orifice 75. The rest of the configuration is almost the same as in the above-described embodiment of the invention.

In the transmission operating device of the present embodiment, when the output rod 9 is swung in the left direction in FIG. 8 when the shift actuator 7 is engaged in gear transmission of a transmission (not shown), FIG. 1 and FIG. The shift rod 2 shown in FIG. 5 rotates a predetermined amount in the neutral position via the output lever 10 and the rotation lever 6. In addition, since the piston rod 70 moves in the same direction with the output rod 9 through the free piston 13, the damper piston 67 also has a spring 71 returning the reverse displacement 72 as it is closed. Swipe left against the side forces. Accordingly, the pressure member of the damper chamber 68 flows into the pressure fluid chamber 66 through the orifice 75 of the reverse direction 72, the communicating portion 73 and the through hole 74 of the damper piston 67, The action is performed. However, after the shift rod 2 is rotated a predetermined amount in the neutral position, the damper force in the damper mechanism 62 is reduced by the piston rod 70, the free piston 13, the output rod 9, the output lever 10, and the like. It is provided to the damper mechanism 63 via the rotation lever 6.

On the other hand, when the gear of the transmission is removed, the damper piston 67 slides in the right direction due to the biasing force of the returning spring 71, so that the shift rod 2 is the piston rod 70 and the free piston 13. The motor rotates in the reverse direction through the output rod 9, the output lever 10, and the rotation lever 6, and returns to the neutral position. At this time, since the pressure fluid of the pressure fluid chamber 66 presses the reverse displacement 67 through the through hole 74 and the communication path 73, the reverse displacement 67 is opposed to the force of the bushing spring 76. It deviates from the toilet seat 73a. However, since the pressure fluid chamber 66 and the damper chamber 68 communicate with each other via the communication path 73 of the damper piston 67, the damper piston 67 moves smoothly in the right direction. Other actions are almost the same as those of the above-described embodiment.

According to the transmission operating device of the present embodiment, the damper mechanisms 62 and 63 are provided on an extension line of the output rod 9 of the actuator 7, and the damper mechanisms 62 and 63 when the gear is removed. Since the damper piston 67 of the damper piston 67 returns to the neutral position of the shift rod 2 due to the biasing force of the spring 71, it moves and presses the output rod 9, so that the shifting operation is performed more quickly. It becomes possible, and the shift time becomes short.

As mentioned above, although the Example of this invention was described, this invention is not limited to the Example of technology, A various deformation | transformation and a change are possible based on the technical idea of this invention.

As described above, the transmission operating apparatus according to the present invention integrally installs a damper force applying member at the end of the shift rod and the output rod of the shift actuator, and also provides a damper mechanism in relation to the damper force applying member. After the tip of the damper force applying member and the damper piston communicate with each other and the electric shift rod moves a predetermined amount from the neutral position, the damper force in the electric damper mechanism is intervened through the damper force applying member or the damper force applying member and the output rod. Since the shift rod or output rod and the damper mechanism are not located on the coaxial shaft, the coaxial shaft is also based on a defect, thereby eliminating various incompatibilities and improving durability. Like the model), it can cope with severe tolerances in the radial direction and has excellent quality performance. In addition, the transmission operating apparatus of the present invention can be freely laid out in accordance with various transmissions and the like, and thus is excellent in versatility.

Moreover, the transmission operating apparatus which concerns on this invention is provided with the damper mechanism on the extension line of the output rod of a shift actuator, and arrange | positions the damper piston which has a reverse displacement classification control valve in the housing of the damper mechanism, and this damper The biasing force of the spring returning the piston rod of the piston is brought into contact with the electrical output rod, and after the shift rod moves a predetermined amount from the neutral position, the damper force of the electric damper mechanism is applied to the shift rod via the piston rod and the output rod. Since it is configured to impart, the effect of the above-described invention can be obtained, and even if the damper mechanism is disposed coaxially with respect to the output rod, the influence of coaxiality is not affected. Furthermore, the shift time can be shortened, and the shift operation can be made. Can be improved.

Claims (3)

A transmission operating device comprising a shift rod driven by a shift actuator and a damper mechanism that performs a damper action after the shift rod moves a predetermined amount from a neutral position, and a damper force is applied to an end of the electric shift rod. The damper piston is provided integrally with the damper force applying member, and the electric damper mechanism is provided separately from the electric shift rod, the damper piston is disposed in the housing of the electric damper mechanism, and is formed on both sides of the damper piston. The damper chamber communicates with the pressure fluid chamber via the orifice, and the tip of the electric damper force applying member and the electric damper piston communicate with each other, and after the electric shift rod moves a predetermined amount from the neutral position, the damper in the electric damper mechanism The force is applied to the shift rod via the electric damper force applying member. Gearbox controls. A transmission operating device comprising a shift rod driven by a shift actuator and a damper mechanism that performs a damper action after the shift rod moves a predetermined amount from a neutral position, wherein the output rod of the electric shift actuator is provided. The damper force applying member is integrally provided, and an electric damper mechanism is provided in relation to the damper force applying member, a damper piston is disposed in the housing of the electric damper mechanism, and damper chambers formed on both sides of the damper piston are provided. It communicates with the pressure fluid chamber via the orifice, connects the tip of the electric damper force applying member and the electric damper piston to each other, and after the electric shift rod moves a predetermined amount from the neutral position, the damper force in the electric damper mechanism is applied. Characterized in that it is configured to impart to the shift rod through the damper force applying member and the output rod Gearbox controls. A transmission operating device comprising: a shift rod driven to a shift actuator; and a damper mechanism for damper action after the shift rod is moved from a neutral position by a predetermined amount, wherein the output rod of the electric shift actuator is extended. An electric damper mechanism is installed on the ship, and a damper piston having a reverse variable displacement control valve is disposed in the housing of the damper mechanism, and the damper piston forms a damper chamber and a pressure fluid chamber in the electrical housing, and at the same time, the electric damper piston Contact the electric output rod with the bias force of the spring returning the piston rod of the piston rod, and after the electric shift rod moves a predetermined amount from the neutral position, the damper force in the electric damper mechanism is transferred to the shift rod via the electric piston rod and the output rod. The transmission operating apparatus characterized by the above-mentioned.