JPS6141059A - Operation mechanism - Google Patents

Abstract

PURPOSE:To set shift pattern of a shift lever at a single H type and to improve speed change operability by operating sleeves in select direction and shift direction by a single shift lever in a speed change gear comprising a main speed change gear and an auxiliary speed change gear. CONSTITUTION:In a speed change gear where sleeves respectively provided on a main speed change gear and an auxiliary speed change gear are axially slided by operation of forks 3C, 3D, 4D to obtain a designated speed change step, the forks 3C, 3D are operated by actuators 5A, 5B, a fork 4D is operated by a shift lever 4A, and the actuators 5A, 5B are operated by oil pressure controlled to be supplied and discharged through switch valves 5D, 5C. The movement for selection of the shift lever 4A interlocks with switch valves 5C, 5D and a sleeve select mechanism. The sleeve select mechanism includes a clutch structure where one of output members of the actuators 5A, 5B is selectively engaged with a shaft 3A or 3B.

Description

[Detailed description of the invention] [Subject of invention and field of application] The present invention relates to an operation mechanism for a transmission in an automobile.

[Prior Art] Conventionally, particularly in trucks, etc., a transmission has been used which combines a main transmission capable of multi-stage shifting and an auxiliary transmission capable of two-stage shifting, high and low.

A feature of this transmission is that due to the presence of the auxiliary transmission, the shifting range of the entire transmission is twice the number of gears in the main transmission, making the entire transmission smaller and lighter compared to the wider number of gears. It has the advantage of being able to

FIG. 1 shows a conventional shift pattern in this type of transmission, where L and H indicate the deceleration and direct gear shift positions in the auxiliary transmission, respectively, and R1 and R2 indicate the reverse first and second gear positions, respectively. Indicates the gear shift position, Fl, F
2, F3, F4, F5 and F6 indicate respective shift positions from the first forward speed to the sixth forward speed.

In this way, the shift pattern in FIG. 1 consists of pattern A on the left side and pattern B on the right side.

[Problems with the prior art and their technical analysis] In this pattern, assuming that the car is going up a slope, the speed of the car will drop unless the gear change operation is done quickly. , the gear shift may not be possible.

In such a case, if the speed change is performed using the speed change pattern shown in FIG. 1, the following will occur.

For example, if you are currently driving in 4th gear F4, you may want to shift down to 3rd gear.
wn) When attempting to do this, in Figure 1, from the F4 shift position of pattern B, first go through the H and L shift positions, and then set to the F3 shift position of pattern A. Become.

Therefore, the gear shifting path becomes extremely complicated, making it extremely difficult to perform the gear shifting.

These difficulties arise from the shift pattern as described above, which arises from the configuration shown in FIG. 2 below.

In FIG. 2, shaft 10 operates the shift forks in the auxiliary transmission, and shafts 1 and 12 operate the respective shift forks in the main transmission.

Also, the claws 10a, lla, llb, 12a and 12b
are the respective portions that the shift levers engage with.

The operation of the configuration shown in FIG. 2 above will be explained as follows.

When the shift I lever engages the pawl lOa and sets the shaft IQ to the position shown, this is the H
This means that it is set to the position of .

In other words, the sub-transmission has been shifted to high.

From this position, slide the shift lever in the select direction to engage the pawl 11a, and use the shift lever to move the shaft l.
If l is manipulated in its axial direction, this results in a shift of R2-F2 in FIG.

Furthermore, when the shift lever is moved from the pawl 11a to the pawl 12a and the shaft 12 is operated in its axial direction, this results in a shift from F4 to F6 in FIG.

Note: When shifting from pattern B to pattern A, move the shift lever to the pawl 10a position, and shift the pawl 10a of the shift lever to the fob position, which will set it to the L shift position in Fig. 1. That means that.

In other words, the sub-transmission has been shifted to low.

To operate the shaft 11 or 12 from this position, slide the shift lever onto the pawl 11b or 12b, and by operating the pawl 11b or 12b, the shaft 11 or 12 is operated in its axial direction. .

The operation of this shirt l-11 or 12 is R1, -F1 or F3 in pattern A in FIG.
This means that a shift of ~F5 has been performed.

Thus, it can be seen that the pattern in FIG. 1 arises from the fact that the shaft 10 in the auxiliary transmission exists independently of the shaft 11 or 12 in the main transmission.

[Technical Problem] A technical problem of the present invention is to provide a shift pattern with a simple shift operation.

[Technical means The present invention is configured as follows.

Each of the first to nth gear trains branched from the input shaft is sequentially divided from the first to nth gear trains in which adjacent fractional gear trains and even number gear trains form one set. nth
/ 2 to n 72 sets are formed, and between the final gear in the odd-numbered gear train and the other final gear in the even-numbered gear train, in the axial direction,
A sleeve is interposed in each of the sets, and the sleeve is fitted to the intermediate shaft so as to be able to transmit 1/L at all times, and the sleeve is selectively moved from a neutral position in the axial direction to one or the other of the axial directions. A main transmission configured as described above, in which the rotation of the final gear or the other final gear is alternatively transmitted to the intermediate shaft via the sleeve by unifying shifting; and the intermediate shaft; Another sleeve is interposed in the axial direction between the final gear of the gear train branched from the intermediate shaft and is fitted to the output shaft so as to enable constant torque transmission, and the other sleeve By shifting from the neutral position in the axial direction to one or the other of the axial directions, rotation of the first and the first final gears or the intermediate shaft is alternatively transmitted to the output shaft via the sleeve. In a gear transmission comprising both of the transmissions, and a sub-transmission having the above configuration.

The movement of the shift lever in the select direction is linked to a switching valve and a sleeve selection mechanism, and each set is provided with an actuator that operates the sleeve of the set, and the switching valve is configured to:a2. is set sequentially from the first select position to the n-th select position, from the first select position to the nth select position, from the actuator in the first set to the The setting state of transmitting the signal of the value l to the actuators in the n/2 sets is sequentially switched, and when the shift lever is set to the middle of the select position, a zero signal is transmitted to each of the actuators. Each of the actuators has the above-mentioned configuration, in which a signal of a value is given to the actuator, and when the signal given to the actuator is a zero value, one output member of the actuator and the other output member of the actuator are Both members are set at neutral positions in the axial direction, and b. When the signal given to the actuator has a value of 1, the one output member is moved to one direction in the axial direction, and the other output member is moved to one direction in the axial direction. to the other output member.

With the above configuration, the sleeve selection mechanism changes from a state in which the switching valve is transmitting a zero value signal to one actuator at an intermediate position between each select position to a state in which it transmits a one value signal. For that actuator, a: When the shift lever is set to an odd-numbered select position, the sleeve in the actuator set is linked to the one output member in its axial movement; 1. Separate from the other output member, and b. When the shift lever is set to an even-numbered select position, the sleeve in the actuator set is linked to the other output member in its axial movement. and is separated from the one output member, the movement of the shift lever in the shift direction is interlocked with the other sleeve, and the interlocking is such that the shift lever moves around its neutral position in the shift direction. The above structure, wherein when the other sleeve is alternatively operated in one direction or the other direction, the other sleeve is alternatively shifted from the neutral position in the axial direction to the one force or the other direction. It consists of:

Further, other inventions of the present invention are as follows.

Each gear train from No. 1 to No. n branched from the input shaft constitutes one set with adjacent gear trains of "1" and even-numbered gear trains sequentially starting from No. 1. forming n/2 sets from the first to the n/2, and between the final gear in the odd-numbered gear train and the other final gear in the even-numbered gear train in the axial direction, each For each set, a sleeve is provided that is fitted to the intermediate shaft to enable constant torque transmission, and the sleeve is selectively shifted from a neutral position in the axial direction to one force or the other in the axial direction. A main transmission configured as above, in which the rotation of the final gear or the other final gear is alternatively transmitted to the intermediate shaft via the sleeve; Another sleeve is interposed in the axial direction between the final gear of the branched gear train and the output shaft so as to enable constant torque transmission, and the other sleeve is connected to the shaft. The above configuration, wherein rotation of the one final gear or the intermediate shaft is alternatively transmitted to the output shaft via the sleeve by shifting from a neutral position in the direction to one or the other of the axial directions. In the gear transmission consisting of both transmissions, the movement of the shift lever in the select direction is linked to the first switching valve and the sleeve selection mechanism, and each set has a An actuator for operating the sleeves of the set is provided, and the first switching valve is configured to move the shift lever from a first select position to an n-th select position when the shift lever is set at a neutral position in the shift direction. When sequentially setting the first select position to the first select position, a signal from the second switching valve or a signal from the actuator in the first set is sequentially set every 1ξ of the two adjacent select positions from the first select position. Switching to a state in which transmission is possible to the actuators in the n/2 group, each of the actuators has the following configuration: a: The signal from the second switching valve becomes zero value. When,
Both one output member and the other output member in the actuator are set to neutral positions in the axial direction, and b: When the signal from the second switching valve becomes a fraction of 1, the axial direction in which the one output member is directed to one side;
and shifting the other output member to the other, the sleeve selection mechanism having the above configuration, wherein the first switching valve is configured to transmit a signal from the second switching valve to the actuator. a: When the shift lever is set to an odd numbered select position, the sleeve in the actuator set is linked to the one output member in its axial movement, and the other output member is b = in an even-numbered select position setting of said shift lever one, said sleeve in said actuator set is associated with and from said one output member in its axial movement; the shift lever has the above relationship, the movement of the shift lever in the shift direction is interlocked with the other sleeve and the second switching valve, and the interlocking is such that the shift lever moves around its neutral position in the shift direction. A relationship in which when the other sleeve and the second switching valve are alternatively operated in one or the other direction in the shift direction, the other sleeve and the second switching valve are alternatively shifted from the neutral position in the axial direction to one or the other. the second switching valve: a: transmits a zero value signal when set at the neutral position in the axial direction; and b: when shifted from the neutral position in the axial direction to one or the other. It consists of the above-mentioned structure, which transmits a signal with the value of ■.

[Effect of technical means] 1-Distribution The effects of the present invention are as follows.

(1) 1: The action switching valve on the transmission side gives a zero value signal to each actuator when the shift lever is set in the middle of each select I position. The value signals cause the actuators to set both one output member and the other output member of the actuators to respective axial neutral positions.

Further, following the above state, when the switching valve is set from the intermediate position of its select position to the select position on either side adjacent to the intermediate position, the switching valve will move to a specific position as described below. The actuator is now ready to send a signal with a value of 1.

In this way, as the switching valve begins to move from the intermediate position of its select position to the side of any select position adjacent to the intermediate position, the switching valve applies a value of 1 to that one actuator. When attempting to form a position for generating a signal, the sleeve selection mechanism moves the first actuator while the one output member and the other output member are both set at the neutral position in the axial direction. It acts as follows.

a: When the shifter is set to an odd-numbered select position from the middle of the select positions, the sleeve in the actuator set is linked to one output member and the other When separating from the output member and setting it to the select position of [b: even number from the middle position of the shift gear or select position], the actuator 1-
In its axial movement, the sleeve in the evening set is connected to and separated from the other output member.

That is, when the shift lever is operated from an intermediate position of each select position to any select position adjacent to the intermediate position, and a signal with a value of 1 is given to the actuator, the value of a. When the select position to which the signal is applied is an odd number, the sleeve in that actuator set is ready to be set in an interlocking relationship with one of the output members in that actuator, and b When the position is an even number, the sleeve in the actuator set is in a position to be set in interlocking relationship with the other output member in the actuator.

- With respect to the relationship between such an actuator and the sleeve in the actuator set, the relationship with the select position where the value 4A of 1 can be learned for that one actuator is as follows.

When the shift lever is set at the neutral position in the shift direction, when the shift lever is sequentially upshifted from the first select position to the nth select position, the switching valve shifts from the first select position to the nth select position. For every two adjacent select positions, from the actuator in the first set to the actuator in the n/2 set,
In this case, in which the setting state of transmitting the signal with the value of l is sequentially switched, the actuator that receives the signal with the value of One output member is shifted to the other.

As described above, at the intermediate position between the two adjacent select positions, a zero value signal is given to the actuator.

As can be understood from the explanation below, a. When one actuator receives a signal with a value of 1 due to the shift lever being set to an odd numbered select position, the output member of one force in that actuator or that actuator When one actuator receives a signal with a value of 1 due to the shift lever being set to an even numbered select position, The output member will shift the sleeve in the actuator to the other side in the axial direction.

Therefore, the operation in the main transmission caused by the shift amplifier operation in the select direction will be specifically explained as follows.

l) Effect when the shift lever is set to the first select position: When the shift lever is set to the first select position on the neutral position in its shift direction, the switching valve is set to the first select position. A signal with a value of 1 is transmitted only to the actuator at .

As a result, since the first select position is the odd-numbered select position, when the actuator in the first set receives a signal with a value of 1, one output member of the actuator in the set Shift the sleeve to one side in its axial direction.

In this case, the shift sets a state in which only the rotation of the first gear train in the main transmission is transmitted to the intermediate shaft.

Note that when the switching valve is set to the first select position, the actuators in the first group and subsequent groups are given a zero value signal, and
The output member of one force and the output member of the other actuator in groups other than the group remain set at their neutral positions.

2) Shift lever to 1st select position and 2fFl-
Effect when the shift lever is set in the middle of the first select position: In the process of operating the shift lever from the first select position to the second select position, when the shift lever moves to the intermediate position, the switching valve , the actuator in the first set is switched from the state in which a signal with a value of 1 has been given until now to the state in which a signal with a value of zero is given to that actuator.

Thus, when the actuator is given a zero value Gi, the one output member of the actuator engaged with the sleeve of the first set returns to its neutral position, so that the first The sleeves in the set will also be returned to their neutral position by one of the output members.

Also, in this case, the other output member in the actuator is also returned to its neutral position, since in this case the other output member is in a state 58 in which it is not engaged with the sleeve in the first set. , the other output members of the actuator are in a state of play.

Also, in this case, the switching valve causes all actuators in the groups other than the first group to be given zero value signals, and one output member of the actuators in the groups other than the first group. The other output member remains set in its neutral position.

From this set intermediate position, the switching valve is ready to move to the second select position adjacent to the intermediate position, thereby causing the switching valve to set the first set of actuators to a value of 1. When the sleeve selection mechanism attempts to form a position for transmitting a signal, the first output member and the other output member remain set at their respective neutral positions in the axial direction. The actuators in the set act as shown below.

In other words, the shift lever is in a state where it selects the even-numbered select positions 2 and 11. In this case, the sleeve selection mechanism selects the sleeves in the first set in its axial movement. It is the turn of the actuators in the first set to be linked to the other force output member and disconnected from the one force output member.

3) Effect when the shift lever is set to the second select position: Following the above state, the shift lever further shifts up, and the shift lever shifts from the neutral position 1 to the second position in the shift direction. When set to the select position, this second select position corresponds to the second adjacent select position from the first select position, so the switching valve continues to operate as it would in the first select position. Similarly, only the actuators in the first set are signaled with a value of 1.

As a result, since the second select position is an even-numbered select position, when the actuator in the first set receives a signal with a value of 1, the other output member of the actuator or the sleeve in the set is activated. Shift it to the other side in the axial direction.

In this case, the shift will set up a condition in the main transmission in which only the rotation in the second gear train is transmitted to the intermediate shaft.

In this case as well, the actuators in the groups other than the first group remain in the state where the zero value signal is applied, and the single force output members of the actuators in the groups other than the first group and the other actuators in the groups other than the first group remain. The force output member remains set in its neutral position.

4) Effect when the shift lever is set between the second and third select positions: Even in the process of operating the shift lever from the second select position to the third select position, the shift lever - moves to a position intermediate between its second select position Y and third select position i, the switching valve, which had hitherto given a signal with a value of 1, to the actuator in the first set. Switch from the state to the state where zero value 4g is given to the actuator.

When a zero value signal is thus applied to the actuator, the other output member of the actuator engaged with the sleeve in the set %'t 1 returns to its neutral position, so that its The sleeves in the first set will also be returned to their neutral position by the other force output members.

Also, in this case, one of the output members in the actuator will also be returned to its neutral position, since in this case, the force output member is in a state of disengagement with the sleeve in the first set. It is in a state of play.

Also, in this case, the switching valve causes all actuators in the groups other than the first group to be given zero value signals, and one output member of the actuators in the groups other than the first group. The other output member remains set in its inward position.

From this intermediate position, the switching valve is ready to move to the third select position adjacent to the intermediate position, thereby causing the switching valve to set the second set of actuators to a value of 1. When the sleeve selection mechanism attempts to form a position for transmitting a signal, the sleeve selection mechanism selects the second output member while keeping both the one output member and the other output member set at the neutral position in the axial direction. The following actions are performed on the actuators in the set.

That is, since the shift lever is in a state where it selects the third odd-numbered selection position, in this case, the sleeve selection mechanism selects the sleeve in the second set in its axial movement. It is connected to the output member of one of the actuators in the set and separated from the output member of the other actuator.

5) Effect when the shift lever is set to the third select position: Following the above state, the shift lever further shifts and amps, so that the soft lever is set to the third select position in the neutral position in the shift direction. When the switching valve is set to the select position, it becomes the third select position 1δ or the first select position after passing the two adjacent select positions from the first select position. The target actuator is moved by one position from the first and second select positions, and a signal having a value of 1 is transmitted only to the actuators in the second set.

Here, since the third select position is an odd-numbered select position, when the actuator in the second set receives a signal with a value of 1, one output member of that actuator moves the sleeve in that set. Shift it to one side in the axial direction.

In this case, the shift will set up a state in which only the rotation in the third gear train is transmitted to the intermediate shaft in the main transmission.

In this case, the actuators in the groups other than the second group remain in a state where a zero value signal is given, and the output of one output member and the output of the other actuator of the actuators in the groups other than the second group remain. The member remains set in its neutral position.

6) Effect when the shift lever is set between the third and fourth select positions: Even in the process of operating the shift lever from the third select position to the fourth select position, the shift lever - When the switching valve moves to an intermediate position between the third select position and the fourth select position, the switching valve changes from the state in which it had been providing a signal with a value of 1 to the actuator in the second set. Switch to a state where zero value Iha is given to the actuator.

When a zero value signal is thus applied to the actuator, the one output member of the actuator engaged with the sleeve of the second set returns to its neutral position, so that the second The sleeves in the set will also be returned to their neutral position by one of the output members.

In addition, in this case, the other output member in the actuator is also returned to its neutral position, but in this case, the other output member is in a state where it is not engaged with the sleeve in the second set. It is in a state of play.

Also in this case, the switching valve causes all the actuators in the groups other than the second group to be given zero-value signals, so that one output member of the actuators in the groups other than the second group The other output member remains set in its neutral position.

From this intermediate position, the switching valve is ready to move to the fourth select position adjacent to the intermediate position, thereby causing the switching valve to set the second set of actuators to a value of 1. When the sleeve selection mechanism attempts to become ready to transmit the signal again, the sleeve selection mechanism selects the second output member while keeping both the one output member and the other output member set at their respective axial neutral positions. The following actions are performed on the actuators in the set.

That is, since the shift lever is in a state where it selects the even numbered fourth select position, in this case, the sleeve selection mechanism selects the sleeve in the second set in its axial movement. It will be linked to and disconnected from the other output member of the actuator in the set.

7) Action when the shift lever is set to the 4th select position: Following the above state, as the shift lever further shifts up, the shift lever changes to 4@ at the neutral position in the 21 direction. When set to the second select position, this fourth select position corresponds to the second adjacent select position from the third select position, so the switching valve continues to be in the third select position. Similarly, it sends a belief of value 1 only to the actuators in the second set.

Here, since the fourth select position is an even-numbered select position, the actuator in the second set is one
In response to receiving a signal with a value of , the other output member of the actuator shifts the sleeve in the set to the other axial side.

In this case, the shift will set up a state in which only the rotation in the fourth gear train is transmitted to the intermediate shaft in the main transmission.

In this case as well, the actuators in the groups other than the second group remain in a state where a zero value signal is applied, and the output member of one of the actuators in the group other than the second group and the output member of the other actuator in the group other than the second group remain. The output member remains set at the neutral position of 7.

In this way, it becomes possible to shift up the shift lever to the nth select position according to the above engagement order.

(2) Operation on the side of the auxiliary transmission The movement of the shift lever in the shift direction is interlocked with the other sleeves, and the interlocking means that the shift lever can be selected from a neutral position in the shift direction to one side or the other in the shift direction. The relationship is such that, when operated in unison, the other sleeves are alternatively shifted from an axial neutral position to one or the other.

Therefore, when the shift lever is set to any select position, when the shift lever is set to the neutral position in the soft direction, the other sleeves are set to the neutral position in the axial direction, and one sleeve is set to the neutral position in the soft direction. It is in a state where it does not engage with either the final gear or the intermediate shaft.

When the shift lever is shifted from this state to one side or the other in its shift direction, the other sleeve is shifted from its neutral position to one force or the other in its axial direction, and the rotation of one final tooth profile is transferred to the output shaft. The intermediate shaft is set to a transmitting state, or the rotation of the intermediate shaft is set to a transmitting state to the output shaft, and this state is set to a low or high gear ratio in the sub-transmission.

(3) Comprehensive operation of the entire transmission As described above, the present invention has the following advantages as a result of both the main transmission and the sub-transmission being operated by a single shift lever in the select direction and the shift direction. When set to the 1st select position, the 1st gear train remains set in the transmission path on the main transmission side, and in this state, the shift lever is not moved. When shifting from the neutral position to one side or the other in the shift direction, a low or high gear ratio can be selected in the auxiliary transmission; 2) When the shift lever is set to the second select position, the second select position When set to , the second gear train remains set in the transmission path on the main transmission side, and in this state, when the shift lever is shifted from its neutral position to one or the other direction in the shift direction, 3) Similarly, when the shift lever is set to the third select position, when the shift lever is set to the third select position, the main transmission On the other hand, the third gear train remains set in the transmission path, and in this state, when the shift lever is shifted from its neutral position to one or the other direction in the shift direction, the auxiliary transmission shifts to a low or high gear. ratio can be selected.

4) Furthermore, when the shift lever is set to the fourth select position, the fourth gear train remains set in the transmission path on the main transmission side. In that state, shift lever
By shifting the transmission gear from its neutral position to one or the other direction in the shift direction, a low or high gear ratio can be selected in the auxiliary transmission.

As described above, the operation mechanism of the transmission according to the present invention consists of an operation in the select direction of the shift lever from the first select position to the nth select position, and an operation in one or the other of the shift directions at each select position. All gear ratios can be selected using a shift pattern, that is, a single H-type shift pattern.Also, in the above explanation of the operation, the case where the select position shifts up from the 1st to the nth position is explained, but the reverse is true. In the case of shifting town, the above-mentioned action returns from the nth position to the first position.

Next, the effects of other inventions in the present invention are as follows.

(1) Effects on the main transmission side Effects in operation in the select direction: With the shift lever set at the neutral position in the shift direction, when the shift lever is shifted up in the select direction, The first switching valve, which is linked to the movement of the shift lever in the select direction, operates as follows.

When the shift lever is sequentially set from the first select position to the nth select position, a signal from the second switching valve is sent from the first select position to each of the two adjacent select positions. The state is sequentially switched from the actuator in the node 1 set to the actuator in the n/2 set to enable transmission.

However, in this case, the movement of the shift lever in the shift direction is linked to the second switching valve, and when the shift lever is set at the neutral position in the shift direction as described above, the second switching valve It is transmitting a zero value signal.

In this case, each actuator sets both one output member and the other output member in the actuator to the neutral position in the axial direction when the signal from the second switching valve becomes zero value. ing.

Therefore, when the shift lever is set to the neutral position in the shift direction as described above, when the shift lever is set to any select position, the output of one output member and the output of the other of each actuator are Both members remain set at the neutral position in the axial direction.In this way, one output member and the other output member in each actuator remain set at the neutral position in the axial direction. When the shift lever is shifted up from the neutral position ball in the shift direction in the select direction,
The sleeve selection mechanism operates as follows.

To the actuator, the first switching valve is arranged to transmit a signal from the second switching valve to the actuator.

a: in the odd-numbered select position setting of shift lever 1, the sleeve of the actuator set is coupled to and decoupled from the other force output member in its axial movement; b = of shift lever 1; In the even-numbered select position setting, the sleeve of the actuator set is coupled to the other force output member and separated from one of the output members in its axial movement.

Effects in operation in the shift direction: As described above, the shift lever is set at the neutral position in the shift direction at any select position, and then the shift lever is shifted from the neutral position in the shift direction to one or the other position. When this happens, the second switching valve emits a signal with a value of 1.

That is, when the first switching valve is set to any select position, when the shift register A shifts from its neutral position in its shift direction to any direction in its shift direction, the switching valve operates as described above. Then, the signal of the value of l transmitted from the second switching valve is transmitted to the actuator corresponding to the select position.

In this case, when the actuator receives a signal with a value of 1, the actuator shifts the - - output member of the actuator to one side and the other output member of the actuator to the other side in its axial direction.

Therefore, the operation at the time of upshifting in the main transmission by the operation in the select direction and the operation in the shift direction will be specifically explained as follows.

l) Effect when the shift lever is set to the 1st select position: When the shift lever is set to the 1st select position and is set to the neutral position in the shift direction at that select position, at this time The first switching valve is a first switching valve.
A configuration is set in which a signal from the second switching valve can be transmitted to the actuator in the group.

However, in this state, as mentioned above, the second switching valve is still transmitting a zero-value signal, so both one output member and the other output member of the actuator in the first set are It is set at its neutral position.

In addition, in this state, since the select position in this state is set to an odd-numbered select position, the sleeve switching mechanism engages one output member of the actuator of the first set with the sleeve of the first set. death,
The relationship between the sleeve and the other output member of the first set of actuators is set to a non-coherent state.

In the above state, when the shift lever is shifted from the neutral position in the shift direction to any direction in the shift direction, the signal from the second switching valve changes from the state where it was transmitting a zero value signal to a value of 1. A signal is transmitted, and the signal of the value of l is transmitted to the first actuator via the first switching valve.

Thus, when a signal with a value of ■ is applied to a first actuator, a single force output member in that actuator shifts the sleeves in the first set to one side in the axial direction.

This means that no matter which direction the shift lever is shifted from its neutral position, only the rotation in the first gear train is transmitted to the intermediate shaft in the main transmission.

In this case, the other output member in the first set of actuators is not engaged with the sleeve in that set, and is therefore in a state of play.

Furthermore, when the first switching valve is set to the first select position, the actuators in groups other than the first group will have a zero value even when the shift lever is shifted in the shift direction. When the signal is applied, one output member and the other force output member of these actuators are all set at their neutral positions.

2) Effect when the shift lever is set to the second select position: When the shift lever is set to the second select position on the neutral position in the shift direction, it means that the shift lever is set to the second select position from the first select position. This means that the first selector valve is set to the second select position (second select position), which corresponds to the second select position. The signal from the second switching valve is set to be able to be transmitted to the actuator at.

However, in this state, as mentioned above, the second switching valve is still transmitting a zero-value signal, so the output member of the first group and the output member of the other force are not activated. Both are set at their neutral positions.

In addition, in this state, the sleeve switching mechanism is set to the select position in this state or an even-numbered select position, so that the external force output member of the actuator of the first set is connected to the sleeve of the first set. together,
The relationship between the sleeve and one output member of the first set of actuators is set to a non-coherent state.

In the second state, when the shift lever is shifted from the neutral position in the shift direction to either direction in the shift direction, the signal from the second switching valve changes from the state in which it was transmitting a zero value signal to the first value. It becomes a state where a value signal is transmitted, and the value of l, No. 44, is the first! iI] is transmitted to the first actuator via the switching valve.

Thus, when a signal with a value of 1 is applied to a first actuator, the other output member of that actuator shifts the sleeves in the first set to the other axial side thereof.

This means that no matter which shift direction the shift lever is shifted from its neutral position, only the rotation in the No. 2 H gear train is transmitted to the intermediate shaft in the main transmission.

In this case, one output member in the first set of actuators is not engaged with the sleeve in that set, and is therefore in a loose state.

Furthermore, when the first switching valve is set to the second select position in this way, the actuators in groups other than the first group will not operate even when the shift lever is shifted in the shift direction. With a zero value signal being applied, one output member and the other output member in the actuators 1-1 are all set at their neutral positions.

3) Effect when the shift lever is set to the third select position: When the shift lever is set to the third select position on the neutral position in the shift direction, it means that the shift lever is set to the third select position from the first select position. The first selector valve is now set to the next upshifted select position (third select position) beyond the second select position (second select position). , the signal from the second switching valve is set to be able to be transmitted to the actuator in the second group, which is moved one position from the state when it is set at the second select position.

However, in this state, the second switching valve is still transmitting a zero value signal as shown in -1=, so the output of one output member of the actuator in the second set is also the same as the output of the other. Both members are also set at their neutral positions.

In addition, in this state, since the select position in this state is set to the odd-numbered Seleno I position, the sleeve switching mechanism switches one output member of the 7-cut unit of the second set to the sleeve switching mechanism of the second set. and sets the relationship between the sleeve and the other output member of the second set of actuators to be in a non-coupled state.

In the above state, when the shift lever is shifted from the neutral position in the shift direction to any direction in the shift direction, the signal from the second switching valve changes from the state where it was transmitting a zero value signal to the value l. A signal is then transmitted, and the signal of the value of l is transmitted to the actuators in the second set via the first switching valve.

Thus, when a signal of one value is applied to an actuator in the second set, one output member of that actuator shifts the sleeve in the second set to one side in its axial direction.

This means that no matter which shift direction the shift lever is shifted from its neutral position, only the rotation in the $3 gear train is transmitted to the intermediate shaft in the main transmission.

In this case, the other output member in the second set of seven cutuators is not engaged with the sleeve in that set, and is therefore in a loose state.

Furthermore, when the first switching valve is set to the third select position in this way, all the actuators in the groups other than the second group operate even when the shift lever is shifted in the shift direction. A zero-value signal is applied, and the output member for one force and the output member for other force in these actuators are set at their neutral positions.

4) Effect when the shift lever is set to the fourth select position: When the shift lever is set to the fourth select position on the neutral position in the shift direction, it means that the shift lever is set to the fourth select position from the third select position. This means that the first selector valve is set to the second set select position (fourth select position), which corresponds to the second select position. The signal from the second switching valve is set to be able to be transmitted to the actuator at.

However, in this state, as mentioned above, the second switching valve is still transmitting a zero-value signal, so in the actuator in the second set, both one output member and the other output member are It is set at its neutral position.

Also, in this state, the sleeve switching mechanism engages the other output member of the actuator of the second set with the sleeve of the second set, since the select position in this state is set to an even numbered select position. death,
The relationship between the sleeve and one output member of the second set of actuators is set to a non-coherent state.

In the above state, when the shift lever is shifted from the neutral position in the shift direction to any direction in the shift direction, the signal from the second switching valve changes from the state where it was transmitting a zero value signal to a value of 1. The state is such that a signal is transmitted, and the signal having a value of 1 is transmitted to the second actuator via the first switching valve.

Thus, when a signal with a value of 1 is applied to an actuator of the second set, the other output member of that actuator shifts the sleeve of the second set to the other side in its axial direction.

This means that no matter which shift direction the shift lever is shifted from its neutral position, only the rotation in the fourth gear train is transmitted to the intermediate shaft in the main transmission.

In this case, one output member in the second set of actuators is in a locked state because it is not engaged with the sleeve in that set.

Furthermore, since the first switching valve is set to the fourth select position, all the actuators in the groups other than the second group can be operated even when the shift lever is shifted in the shift direction. With a zero value signal being applied, one output member and the other output member of these actuators are set at their neutral positions.

In this manner, the select position can be shifted up to the nth select position according to the above order.

(2) Effect on the side of the sub-transmission The structure of the sub-transmission in the other invention (second invention) of the present invention, including its operating mechanism, is similar to that of the main invention (first invention).
Since the structure is the same as that in the invention),
Its action is the same as that in the first invention described above. (3) Overall action of the entire transmission As described above, in the second invention, as in the first invention, the above-mentioned main transmission and sub-transmission are combined. Since both transmissions are operated by a single shift lever, l) when the shift lever is set to the first select position, the first gear train can be selected as the transmission path on the main transmission side; When the shift lever is shifted from its neutral position to one or the other direction in the shift direction, the first gear train is set as the transmission path on the main transmission side at the same time as the shift. , and at the same time a low or high gear ratio can be set in the auxiliary transmission; 2) When the shift lever is set to the second select position, the second gear ratio can be set on the main transmission side; When the gear train is set to be selectable as the transmission path, and in this setting state, when the shift lever is shifted from its neutral position to one force or the other in the shift direction, at the same time as that shift, the second gear on the main transmission side 13) When the shift lever is set to the 31st select position, On the main transmission side, the third gear train is set to be selected as the transmission path, and in this setting state, when the shift lever is shifted from its neutral position to one or the other direction in the shift direction, the shift occurs. At the same time, the third gear train is set as the transmission path on the side of the main transmission, and at the same time, a low or high gear ratio can be selected on the auxiliary transmission, and 4) the shift lever is set as the fourth gear train. When set to the select position, the fourth gear train is set to be selectable as the transmission path on the main transmission side, and in this setting state, the shift lever is moved from its neutral position to one side in the shift direction. Alternatively, when shifting to the other side, the fourth gear train is set as the transmission path on the main transmission side at the same time, and at the same time, a low or high gear ratio can be set on the auxiliary transmission. , The operation can be set up to the nth selection position according to the above order.

In this way, the other invention of the present invention also has a transmission operating mechanism that operates the shift lever in the select direction from the first select position to the nth select position, and in one or the other of the shift directions at each select position. All transmission ratios can be selected by a shift pattern consisting of the following operations, that is, a single H-type shift pattern.

In addition, in the above explanation of the operation, the case where the select position shifts up from the 1st to the nth position is explained, but the operation when the select position shifts down is as follows.
The above-mentioned action will proceed from the nth select position back to the first select position.

In addition, when the shift lever is set to the neutral position in the shift direction at each select position, one output member and the other output member of each actuator are all set to the neutral position, so that each sleeve are all set at neutral positions in the axial direction.

As can be understood from the above description of the structure and operation, the differences between the first invention of the present invention and the second invention of the present invention are as follows.

First, the difference in structure is that the first switching valve in the second invention corresponds to the switching valve in the first invention, and the second switching valve in the second invention does not exist in the first invention. Instead, the switching valve in the first invention is configured to transmit a zero value signal to the actuator corresponding to the select position when set to an intermediate position between the respective select positions during operation in the select direction. has been added.

Therefore, as a difference in operation, in the second invention,
When either sleeve in the main transmission engages the gear train corresponding to its select position, this occurs when the second selector valve is shifted from its neutral position in either shift direction. In contrast, in the first invention, when the switching valve is set at each select position, the signal of the value of l is directly guided to the actuator corresponding to that select position, and the sleeve engages with the gear train. It is something that is meant to be done.

[Specific Effects Achieved by the Present Invention] As is clear from the above description of the present invention, the transmission operating mechanism of the first invention and the second invention of the present invention directly connects the main transmission and the sub-transmission. Even with conventional transmissions,
Since it is now possible to make the shift pattern of the first shift lever into a single H type, the shift lever can be moved continuously from the first select position to the nth select position, or from the nth select position to the first select position. This makes it possible to continuously select each gear ratio in the transmission while operating the transmission.

As a result, the continuously selectable speed change operation is very suitable for cases where a quick speed change operation is required, such as when driving uphill.

This makes it possible to take advantage of the characteristics of conventional transmissions that directly connect the main transmission and auxiliary transmission, which are small and lightweight and can have a large number of gears, while also allowing easy single-shift operation. This makes it possible to operate the H-type shift pattern.

Furthermore, the fact that the transmission operating mechanism of the present invention can be used in a conventional small and lightweight transmission in which a main transmission and a sub-transmission are directly connected means that when the transmission is installed in an automobile, the sub-transmission While it is possible to operate the same H-type shift pattern as a conventional transmission without a transmission, it is possible to keep the transmission itself lightweight, contributing to the weight reduction of automobiles. In addition, the first invention is different from the second invention in that it is possible to omit the second switching valve. [Example] The first invention of the present invention will be described below based on examples. do.

FIG. 3 shows a conventional type transmission in which the main transmission 1 and the auxiliary transmission 2 are directly connected, in a side sectional view, and
FIG. 3 also shows the main body portion of the transmission according to the embodiment of the present invention.

In FIG. 3, each of the input shaft 1a, intermediate shaft ih, and output shaft 2f is pivotally supported by a casing (not shown) of the main transmission 1 or the auxiliary transmission 2.

The input shaft 1a, the intermediate shaft 1h, and the output shaft 2f are arranged in series, and the sub-shafts 1c and 2b are arranged parallel to the input shaft 1a and the like.

The gear 1b is fitted or fixed to the input shaft 1a, the gears 1d, 1e, if, and Ig are fitted to the subshaft IC, the gear 2a is fitted to the intermediate shaft 1h, and the gears 2C and 2d are fitted or fixed to the subshaft 2b. The gears are set to rotate at the same time.

The gears 1i, 1j, and 1 are fitted to the intermediate shaft 1h so that they can rotate freely, and the gear 2e is fitted to the output shaft 2f so that the gears 1b, 1d, and 1 can rotate freely.
1 and gear 1e, and gear 1j and gear 1f are always in mesh with each other, and gear 1 and gear 1g are always in mesh with each other via an idle gear (not shown).

Further, the gears 2a and 2c and the gears 2d and 2e are also always in mesh with each other.

The hubs 1m and 1p are fitted onto the intermediate shaft th so as to rotate at the same time, and the hub 2h is fitted onto the output shaft 2f so that they rotate at the same time. is a sleeve that is spliced/fitted into each of the hubs 1m, 1p, and 2h and is slidable in the axial direction.

A concave groove extending in the circumferential direction with respect to the shaft is formed on the outer periphery of each of the sleeves in, lq, and 2g, and each of the forks 3D, 3C, and 4D in FIG. 4 is fitted into the line groove.

FIG. 4 shows sleeves 1n, 1q and 2 in FIG.
The operating device of g is shown in a side sectional view.

In FIG. 4, the shift lever 4A is pivotally attached to a fulcrum portion 4Aa, and its tip 4Ab fits into a hole 4Ba in a shift lever housing 4B.

The groove 4Bd in the shift lever housing 4B connects the boss 4 of the fork 4D so that the groove 4Bd slides integrally in the axial direction.
Da is sandwiched, and the shaft 4E is inserted into the hole 4D of the fork 4D.
The shaft 4E is fitted through a hole 4Bc in the shift lever bousing 4B, and the shaft 4E is pivotally supported in a hole 6a in the casing 6.

The pin 4Bb is integrally fitted into the shift lever bousing 4B, and the tip of the pin 4Bb protrudes into a groove 4Ea cut in the shaft 4E, and the shaft 4E is fitted around the axis of the hole 4Db in the fork 4D. Sliding rotation is possible.

The fork 4D has arms 4Dc and 4Dd, which form claws 4De and 4Df, respectively, as shown in FIG. Sleeve 2 in Figure 3
It fits into the groove of g.

Here, the shift lever 4A can be swung in the d direction or the e direction within the plane shown in FIG. It is called.

Further, the shift lever 4A is pivoted clockwise or counterclockwise within the plane shown in FIG.
It is possible to set the tilt at each select position of e2, Se3, and Se4, and the direction of this movement will be referred to as "
It is called the selection direction j.

In FIG. 5, when shift lever / is shaft 4E
The relationship is such that it oscillates in a direction around 11 counterclockwise around .

In this case, the shirt) 4E is the perforation 4 in the fork 4D.
It is in a relationship that it swings together with the shift lever housing 4B while sliding within Db.

In FIG. 4, the shirt 3A is fitted into a hole 6f made in the casing 6 so as to be able to slide in the axial direction, and the right end of the shirt 3A is fitted into a hole 3Ca in the fork 3C, and the shaft On the left side of 3A is the 11th
The actuator 5A of No. 1 is attached, and the shirt) 3B slides in the axial direction into the perforation 6g made in the casing 6. An actuator 5B shown in FIG. 11, which will be described later, is attached to the left side of the shaft 3B.

In FIG. 4, the sleeve operating device 3 consists of forks 3C and 3D, and the fork 3C has arms 3Cb and 3Cc, as shown in FIG. 6 and FIG. The arms 3Cb and 3Cc have claws 3Ce and 3Cd, respectively, and the claws 3C
d and 3Ce fit into the grooves of the sleeve lq in FIG. 3, the fork 3D has arms 3Db and 3Dc,
Arms 3Db and 3Dc have claws 3De and 3D, respectively.
d, and the claws 3Dd and 3De fit into the grooves of the sleeve ln in the third V.

FIG. 8 shows a detailed side sectional view of the area around the actuator 5A attached to the left side of the shirt 3A in FIG. The springs 5Af and 5Ag apply a biasing force toward the center in the axial direction to the output member 5Ac and the output member 5AC in the cylinder 5Ab, respectively. The portion sandwiched by the output member 5Ad forms a displacement chamber 5Ae.

Cylinder 5Aj of output member 5Ac and output member 5Ad
Each of the cylinders 5Ak has a shirt)3 in common.
The output member 5A is fitted so as to be able to slide in the axial direction of the output member 5A.
A groove 5Ah is cut in c, a groove 5Ai is cut in output member 5Ad, and holes 3Ak and 3Am are cut in shirt h3A.
and grooves 5Ah and 5Ai and holes 3Ak and 3.
The positional relationship with Am is as shown in FIG.
When Ac and 5Ad are set to their neutral positions in the axial direction, the perforations 3Ak and 3Am are arranged in a relationship such that they correspond to the positions of the grooves 5Ah and 5Ai, respectively, and each of the perforations 3Ak Alternatively, a pin-shaped locking tool 3Ai or 3Aj is fitted to 3Am so that it can slide in the vertical direction.

A cylinder 3Ac bored in the shaft 3A communicates with the conduit a from the bores 3Ab and 3Aa through the groove 6c and the bore 6b.

The borehole 3Ah in the shaft 3A is bored so as to communicate with the cylinders 3, Ac and 3Ag.
A piston 3A e is fitted to the Ag, and a piston 3Ad is fitted to the cylinder 3Ac so that they can slide in the axial direction, and a shaft 3A is fitted between the piston 3Ae and the piston 3Ad.
f is sandwiched between the spring 3Ap, the piston 3Ae, and the shaft 3.
Applying force to the right to Af and piston 3Ad,
An is a pin fitted onto the shaft 3A.

In the configuration of the actuator 5A as described above, when pressure fluid is fed from the bore 6b to the bore 3Ab via the groove 6c and the bore 3Aa, the piston 3Ad is pushed leftward by the fluid pressure, as shown in FIG. Set it to a position like .

In this way, when the piston 3Ad is suppressed to the left, the locking tool 3Aj is pushed upward by the piston 3Ad, and the locking tool 3Aj is locked in the groove 5Ai, which means that the output member 5Ad and shirt ) 3A has been engaged in its axial movement.

In this case, when the piston 3Ad is pushed to the left, the piston 3Ad resists the urging force of the spring 3Ap.
moves the piston 3Ae to the left as shown through the shaft 3Af, thereby causing the locking tool 3Ai to move into the borehole 3.
It is set in a state in which it can freely move in the downward direction L in Ak, and the output member 5Ac and the shaft 3A are brought into a non-engaged state in the axial direction.

In this state, when pressurized fluid is forced into the displacement chamber 5Ae through the perforation 5Aa, both the output members 5Ac and 5Ad are compressed and transferred to both sides in the axial direction as shown in FIG. , since the output member 5Ad is in an engaged state with the shaft 3A, the output member 5Ad shifts the shaft 3A to the right, and in this case, the output member 5Ac and the shaft 3A are in a non-coupled state, so 'The output member 5Ac is in a state of play.

On the other hand, as shown in FIG. 8, when the output members 5Ac and 5Ad are set at the neutral position in the axial direction, the perforation 6b is opened to atmospheric pressure, so that the perforation 3Ab is also brought to atmospheric pressure. When this occurs, the piston 3Ae, the shaft 3Af, and the piston 3Ad are each shifted to the right by the biasing force of the spring 3Ap.

When the pistons 3Ae and 3Ad are moved to the right in this way, the locking tool 3Ai is pushed upward by the piston 3Ae and the locking tool 3Ai is locked in the groove 5Ah, and the shirt 3A is moved in its axial direction. Output member 5Ac in motion
In contrast, as the piston 3Ad moves to the right, the locking tool 3Aj becomes free to move in the vertical direction, and the shaft 3A and the output member 5Ad are in a non-coupled state.

In this state, the displacement chamber 5A is inserted through the perforation 5Aa.
When the pressure fluid is fed to the point e, as shown in FIG. 10, both the output members 5Ac and 5Ad are suppressed and shifted in the left-right direction, and at this time, the output member 5Ac and the shaft 3A are in a locked state, so that The output member 5Ac shifts the jar 7) 3A to the left, and since the output member 5Ad and the shaft 3A are not engaged, they are in a state of play.

Also, in either case of FIG. 9 or FIG. 10, when the displacement chamber 5Ae is opened to atmospheric pressure via the perforation 5Aa, both the output members 5AC and 5Ad are connected to the springs 5Af and 5Ag. The force causes the shaft 3A to return to the neutral position shown in FIG. 8, and at this time the shaft 3A is also returned to its neutral position by the output member 5Ad or 5Ac.

That is, the actuator 5A: 1) Even when pressurized fluid is being fed to the perforation 6b, and even when the perforation 6b is at atmospheric pressure, the actuator 5A
When Aa is at atmospheric pressure, the shaft 3A is set at its neutral position in the axial direction; 2) When pressurized fluid is being fed to the borehole 6b, the borehole 5
When pressurized fluid is fed to Aa, the shaft 3A shifts to the right. 3) When the borehole 6b is at atmospheric pressure, the borehole 5A
When pressurized fluid is fed to the shaft 3A, the shaft 3A shifts to the left.

Further, the actuator 5B attached to the left side of the shaft 3B in FIG. 4 has exactly the same configuration as the actuator 5A shown in FIG. 8.

Therefore, the actuator 5B operates as follows: (1) Even when pressurized fluid is being fed to the perforation 6d, and even when the perforation 6d is at atmospheric pressure,
When Ba (Fig. 11) is at atmospheric pressure, the shaft 3B is set at its neutral position in the axial direction; 2) When pressurized fluid is being fed to the borehole 6d, the borehole 5
When pressurized fluid is pumped to Ba, the shaft 3B shifts to the right; 3) When the pressure fluid is pumped to the drilled hole 5Ba when the borehole 6d is at atmospheric pressure, the shaft 3B shifts to the left. It has the above configuration.

In FIG. 11, the actuator 5A or 5B that operates the fork 3C or 3D is configured to be operated by the switching valves 5C and 5D, and the fluid pressure source 8 is directly connected to the ports 5CC and 5Dc. A throttle channel 5Cp is interposed between the port 8 and the port 5cc.

The switching valve 5C has a rotary valve 5Cb fitted into the cylinder 5Ca so as to be slidable in the rotational direction within the cylinder SCa.
The center of rotation of the rotary valve 5Cb is directly connected to the shirt) 4H in FIG. Port 5Cd communicates with the atmosphere through hole 5Cf, and port 5Ce communicates with the atmosphere through hole 5Cg.

In the switching valve 5D, a rotary valve 5Db is fitted into the cylinder 5D, a so as to be able to slide in the rotational direction within the cylinder SCa, and the rotation center of the rotary valve 5Db is directly connected to the shaft 4E in Fig. ft54. , Bo) 5Df is perforation 6
b, the port 5Dg communicates with the perforation 6d, and the port 5Dd communicates with the atmosphere via the perforation 5De.

Also, both the switching valves 5C and 5D.

(1) When the shift lever 4A is set to the select position S'el, the state shown in Fig. 11 is set; (2) When the shift lever 4A is set to the intermediate position between the select position Sel and the select position Se2. (3) When the shift lever 4A is set to the select position Se2, it is set to the state shown in FIG. When set to the intermediate position, the state shown in Fig. 14 is set, and (5) the shift lever 4A is in the select position ift S e3.
(6) The shift lever 4A is in the select position fiffiSe3.
(7) When the shift lever 4A is set to the select position WS e4, the state shown in FIG. 17 is set. It is the above-mentioned structural acid.

In addition, one output member (5Acl) or the other output member (5Acl) in each actuator 5A or 5B
The clutch configuration in which c) and shirt) 3A or 3B are selectively engaged, and the switching valve 5D in Figure tiS11 constitute a sleeve selection mechanism.

The operation of the configuration of the first embodiment of the present invention described above will be explained below.

The illustration at ¥1S31Δ shows a state in which each of the sleeves In, lq, and 2g is set at a neutral position in the axial direction.

Also, in FIG. 4, as described later, the fork 3C
and 3D are set at their neutral positions in the axial direction.

Therefore, in this state shown in FIGS. 3 and 4, power from the engine (not shown) is not transmitted from the input shaft 1a to the output shaft 2f via the main transmission 1 and the auxiliary transmission 2. It's pa.

From this state, the sleeve lq or 1 in FIG.
The operation in the main transmission l when only n is operated will be explained.

In the main transmission 1, when only the sleeve lq is operated to the right from the state shown in FIG. 3 to bring the gear lk and the hub tp into a coupled state, the power flow is caused by the input shaft 1a, the gears 1b and 1d, Subshaft lC1 gear 1g, idle gear (not shown)
and is transmitted to the intermediate shaft ih via the gear 1k, sleeve 1q, and hub 1p.

In the transmission in this case, since an idle gear is interposed between the gear 1g and the gear 1, the rotation of the intermediate shaft ih is reversed to the rotation of the input shaft 1a.

Moreover, if only the sleeve lq is operated to the left from the state shown in FIG. 3, and the gear 1j and the hub lp are brought into the coupled state,
Power flow is transmitted to the intermediate shaft 1h via the input shaft 1a, gears ib and I'd, counter shaft 1c, gears 1f and lj, sleeve lq and hub 1p.

In this case, the transmission is based on the gear ratio of the input shaft 1a.
This means that the rotation of the intermediate shaft 1h is decelerated and transmitted to the intermediate shaft 1h, and the rotation of the intermediate shaft 1h is set to a low speed state of forward operation.

When only the sleeve ln is operated to the right from the state shown in FIG. 3, and the gear 1i and the hub 1m are brought into a coupled state, the power flows to the input shaft 1a, the gears lb and ld, the subshaft 1c,
The power is transmitted to intermediate shafts 1 and h via gears 1e and lj, sleeve 1n and hub 1m.

In this case, the transmission is based on the gear ratio of the input shaft 1a.
This means that the rotation of the intermediate shaft 1h is decelerated and transmitted to the intermediate shaft 1h, and the rotation of the intermediate shaft 1h is set to a medium speed state of forward operation.

Furthermore, if only the sleeve in is operated to the left from the state shown in FIG. 3 to bring the gear 1b and the hub 1m into a connected state,
The flow of power is the input shaft 1a, gear 1b, sleeve In
and is transmitted to the intermediate shaft 1h via the hub 1m.

In this case, the rotation of the human power shaft 1a is directly transmitted to the intermediate shaft lh without going through the subshaft 1c, so that the rotation of the intermediate shaft ih is directly connected to the input shaft 1a.

That is, the main transmission l allows the following speed change operations.

■) Reverse operation in the No. 1 gear train of gears 1k and 1g.

2) Low speed operation in the second gear train of gears 1j, lf.

3) Medium speed operation in the third gear train of gears 1i, le.

4) Gear ib and intermediate shaft 1. Directly connected operation with h.

The shift operation of the main shift ja, 1 as described above can be performed by operating the select position of the shift lever 4A as described below.

Hereinafter, the shift amplifier (shift amplifier in the -8 transmission l)
t up) operation will be explained.

■) Function of select ()l, position Sel: shift lever 4
When A is set to the select position Set on the neutral position in the shift direction, the movement to be set is the fifth
As shown in the figure and FIG. 4, the switching valves 5C and 5D are set to the state shown in FIG. 11 via the tip 4Ab, shift lever housing 4B, pin 4Bb, groove 4Ea and shaft 4E.

In this state, the switching valve 5C has ports 5C1 and 5C.
Close Ck and close port 5Ba in actuator 5B.
port 5C which is at atmospheric pressure via port) 5Cj
It is in a state where it is connected to e.

Therefore, since the perforation 5Ba in the actuator 5B is at atmospheric pressure, the actuator 5B keeps the shirt 3B set at its neutral position.
And thereby the shaft 3B keeps the fork 3D set in its neutral position.

In this case, the switching valve 5D connects the port 5Dc communicating with the fluid pressure source 8 to the perforation 6b via the port 5Df, and the switching valve 5C connects the port 5Cc communicating with the fluid pressure source 8. is in communication with port 5Aa in actuator 5A via port 5Ch.

Therefore, the pressure fluid of the fluid pressure source 8 is forced to be fed to both the perforation 6b and the perforation 5Aa, and as a result, the actuator 5A in this case shifts the shaft 3A to the right.

This rightward shift of the shaft 3A causes the sleeve 1q to shift toward the gear 1 in FIG. 3 via the fork 3C.

That is, on the side of the main transmission l, the shift lever 4
By setting A to the select position Set, the power flow path is set to the aforementioned 11) reverse operation j in the first gear train of gears lk and 1g.

2) Operation between the select position Sel and the select position Se2: In the process of shifting up the shift lever 4A from the select position Sel to the select position Se2 on the neutral position in the shift direction, the shift lever 4A is moved to the select position Sel. When set to the middle of the select position Se2, the switching valves 5C and 5D are set to the state shown in FIG. 12.

In the switching valve 5C in this state, the port 5Ci is closed, the port 5Cc is also closed, and the port 5Cd, which is at atmospheric pressure, communicates with the port 5Aa of the actuator 5A via port 5ch, and the pressure becomes atmospheric. The port 5Ce connected to the actuator 5B is in communication with the hole 5Ba in the actuator 5B via the port 5Cj or 5Ck.

Therefore, in this case, the perforation 5Aa in the actuator 5A and the perforation 5 in the actuator 5B
Since both Ba is exposed to the atmosphere, the actuator 5A
is the fork 3c from the state 8 of the select position Se1 (the state 8 in which the phonic 3C is shifted to the right) via the shaft 3A.
is returned to its neutral position, and the actuator 5B also keeps the fork 3D set at its neutral position via the shaft 3B.

In this way, when the select position of the shift lever 4A is shifted up toward Se2 with both the forks 3C and 3D set to the neutral position, the port 5cc of the switching valve 5C communicates with the port 5Ci. (i.e., the pressure fluid of the fluid pressure source 8 is connected to the hole 5Aa from the port 5Cc through the port 5ci.
At the switching valve 5D, the port l-5 is
D d communicates with port 5Df, and perforation 6b communicates with port 5Df.
The state is such that Df and 5Dd are opened to the atmosphere via the perforation 5De.

This means that the actuator 5A still has the perforation 5A.
In a state where no pressure fluid is being fed to a, that is, in a state where one output member 5Ad and the other output member 5Ac are set and maintained at their neutral positions, the shaft 3A engages with the output member 5Ac of external force, The engagement between the shaft 3A and one output member 5Ad is set to a non-engaged state.

3) Effect of select position Se2: When the shift lever is further shifted up to the select position: @HS e 2 position while the shift lever 4A is on the neutral position in the shift direction, the switching valves 5C and 5D are in the position shown in Fig. 12. From the state shown in FIG. 13, set it to the position shown in FIG.

In this case, the switching valve 5C in FIG. 13 has ports 5ch and 5Cj closed, and the actuator 5
Port 5Ba in B is in communication with port 5Ce, which is at atmospheric pressure, via port 5Ck.

Therefore, in this case, since the perforation 5Ba in the actuator 5B remains open to the atmosphere, the actuator 5B continues to set the fork 3D at its neutral position via the jab 3B.

Further, as in 2) above, the perforation 6b is opened to the atmosphere immediately before the switching valve 5D enters the state shown in FIG.
In addition, even in the state shown in FIG. 13, the hole 6b remains at atmospheric pressure at the port 5Dd.
By continuing to communicate with the hole 6b, the perforation 6b remains at atmospheric pressure.

At this time, as shown in FIG. 13, the switching valve 5C directs the pressure fluid from the fluid pressure source 8 from the port 5Cc to the port 5
It is now in a state where it is pumped to the perforation 5Aa via Ci.

This means that the hole 6b is opened to the atmosphere and at the same time the hole 5A is opened to the atmosphere.
Since the pressure fluid from the fluid pressure source 8 is being fed to the point a, the actuator 5A shifts the shirt 3A to the left.

This shift of the shaft 3A to the left causes the sleeve lq to be shifted to the side of the gear 1j in FIG. 3 via the fork 3C.

That is, on the side of the main transmission l, the shift lever 4
By setting A to the select position Se2, the power flow path is set to the low speed operation J in the second gear train of /2) south $lj, if.

In this case, port 5CC is port 5C in FIG.
port 5Cc to port) 5 by communicating with port 1
When pressurized fluid with a fluid pressure of 1iI8 is fed to the perforation 5Aa through Ci, the pressure wave body flows through the constricted channel 5CP.
Therefore, the pressurized fluid is pumped to the perforation 5Aa when the shirt) 3A switches its retention from one output member 5Ad to the other output member 5Ac, that is, when the perforation 6b reaches atmospheric pressure. This will be done well after the opening time.

This means that when the switching valves 5C and 5D shift up from the state shown in FIG. 12 to the state shown in FIG. 13, one output member 5Ad and the other output member 5A
c remain set in the neutral position, i.e. when the perforation 5Aa is still open to atmospheric pressure, the shirt) 3A is transferred from one output member 5Ad to the other output member 5Ac. This is because it is necessary to switch between the positions, and for this reason, the pressure fluid is fed to the perforation 5Aa with a sufficient delay after the perforation 6b is opened to the atmosphere.

However, this throttle channel 5Ep is not necessarily necessary. That is, when shifting up from the state shown in FIG. 12 to FIG. 13, the configuration is such that port 5Dd can open to port 5Df earlier than port 5Cc opens to port 5Ci. This is because it can be done.

That is, any of the methods described above may be used to provide the delay, or these methods may be used simultaneously.

This also applies when operating Shift Town.

4) Operation between the select position is e 2 and the select position Se3: The shift lever 4A moves from the select position S e 2 to the select position S on the neutral position in the shift direction.
In the process of upshifting to e3, when the shift lever 4A is set between the select position Se2 and the select position Se3, the switching valves 5C and 5D are set to the state shown in FIG. 14.

In this state, the switching valve 5C is connected to ports 5ch and 5.
Cj is closed, and port 5CC is also closed, communicating with port 5Aa of actuator 5A via port 5Cd or port 5C4, which is at atmospheric pressure, and port 5C'e, which is at atmospheric pressure, is communicated through port 5Ck. The actuator 5B is now in communication with the perforation 5Ba in the actuator 5B.

Therefore, in this case, the perforation 5Aa in the actuator 5A and the perforation 5 in the actuator 5B
Since both Ba is exposed to the atmosphere, the actuator 5A
is the fork 3C from the select position se2 (the fork 3C shifted to the left) via the shaft 3A.
is returned to its neutral position, and the actuator 5B also keeps the fork 3D set at its neutral position via the shaft 3B.

In this way, when the select position of the shift lever 4A is shifted up toward Se, 3 with both the forks 3C and 3D set at the neutral position, the selector valve 5c is shifted to the position 5Cc. )5Cj
That is, the pressure fluid of the fluid pressure source 8 flows from the port 5Cc to the borehole 5B via the port 5Cj.
(a) 5 at the switching valve 5D earlier than the pressure is sent to the
The pressure fluid in the fluid pressure source 8 is in communication with Dc and Por) 5Dg, and the pressure fluid in the fluid pressure source 8 is forced to be fed from Por) 5Dc to Por) 5Dg to the perforation 6d.

This means that the actuator 5B still has the perforation 5B.
A state in which no pressure fluid is being fed to a, that is, one output member of the actuator 5B (corresponding to the output member 5Ad of the actuator 5A) and the other output member of the actuator 5B (corresponding to the output member 5Ac of the actuator 5A) are in their neutral state. While set and maintained at the position, the shaft 3B or one output member of the actuator 5B is engaged, and the engagement between the shaft 3B and the other force output member of the actuator 5B is set to the disengaged state IE. It turns out.

5) Effect of select position Se3: When the shift lever is further shifted to the select position Se3 while the shift lever 4A is on the neutral position in the shift direction, the switches jt5C8 and 5D change from the state shown in FIG. 14 to the state shown in FIG. Set J￥2 at the position.

In this case, in the switching valve 5C in FIG. 15, the port 5Ci communicating with the port 5Aa of the actuator 5A is closed, and as a result, the hole 5Aa is
In the state shown in the figure, the state when opened to the atmosphere IL continues to be maintained.

Therefore, the actuator 5A keeps the fork 3C set in its neutral position via the shaft 3A.

Also, as in 4) above, J conversion j1''5D is the first
State m in Fig. 5: Immediately before entering the state, the port 5Dc leading the pressure fluid of the fluid pressure source 8 is connected to the perforation 6d via the port 5Dg, and the state is set to the state shown in Fig. 15. Continuing on, the fluid pressure source 8 is connected to the perforation 6d.
The pressure fluid continues to be pumped.

At this time, as shown in FIG.
It is in a state where it is forced to be fed to the perforation 5Ba via Cj.

This means that the pressure fluid is being fed to the borehole 6d, and at the same time, the pressure fluid is also being forced to be fed to the borehole 5Ba, so the actuator 5B shifts the shaft 3B to the right.

This rightward shift of the shaft 3B corresponds to shifting the sleeve 1n to the gear 11 side in FIG. 3 via the fork 3D.

That is, on the side of the transformer 1, the shift lever 4
By setting A to Se1/L position lSe3, the path of the power sag changes to the above-mentioned If'3) tooth l
JLE, 11Cr) Medium-speed operation in the 3rd south-middle row will be set.

In this case, port 5CC or port 5C in FIG.
port 5Cc to port) 5 by communicating with
When the pressure fluid from the fluid pressure source 8 is forced to be fed to the perforation 5Ba through Cj, the need for the pressure fluid to be forced to be fed through the curving channel 5Cp is due to the restriction flow explained in 3) above. 6) Action at the intermediate point between the select position 1se3 and the select position Se4: A process in which the shift lever 4A shifts and amplifies the neutral position in the shift direction from the select position Se3 to the select position Se4. When the shift lever 4A is set to an intermediate position between the select position Se3 and the select position Se4, the switching valves 5C and 5D are set to the state shown in FIG. 16.

In this state, ports 5ch and 5Ci of the switching valve 5C are closed, as in FIG. 15 at the select position Se3. This shows that in the case of FIG. 16 as well, the perforation 5Aa communicating with port 5Ch and 5C4 remains at atmospheric pressure as in the select position Se3.

Further, the perforation 5Ba is also opened to atmospheric pressure via the perforation 5Cf from the ports 5Cj and 5Cd.

Therefore, in this case, the perforation 5Aa in the actuator 5A remains at atmospheric pressure, and the perforation 5Ba in the second actuator 5B has become atmospheric pressure, so the actuator 5A moves the fork 3C to its neutral position via the shaft 3A. The actuator 5B returns the fork 3D from the select position Se3 (the state in which the fork 3D is shifted to the right) to its neutral position via the shaft 3B.

In this way, when the select position of the shift lever 4A is shifted toward Se4 with both the forks 3C and 3D set to the neutral position, the port 5Cc communicates with the port 5ck in the switching valve 5C. (i.e., the pressure fluid of the fluid pressure source 8 is connected to the hole 5Ba from the port 5Cc through the port 5ck.
port 5D at switching valve 5D.
d communicates with port 50g, and hole 6d communicates with port 5Dg.
5Dd is released to atmospheric pressure via the perforation 5De. This means that in the actuator 5B, pressure fluid has not yet been sent to the perforation 5Ba, that is, one output member in the actuator 5B (the output in the actuator 5A). (equivalent to member 5Ad) and the other output member in actuator 5B (equivalent to output member 5Ac in actuator 5A) are in their neutral positions under membrane force! In the maintained state, the shaft 3B engages with the other output member of the actuator 5B,
This means that the engagement between the shaft 3B and the force output member of the actuator 5B is set to the disengaged state 71. 7) Effect of select position S e 4: Shift lever 4A
When the shift lever is further shifted to the select position Se4 at the neutral position in the shift I direction, the switching valves 5C and 5D are set from the state shown in FIG. 16 to the position shown in FIG. 17.

In this case, the switching valve 5C in FIG. 17 has Ig! 5Ch and 5Ci are closed, so that the perforation 5
Aa continues to maintain the state shown in FIG. 14 when opened to atmospheric pressure.

Therefore, the actuator 5A keeps the fork 3C set at its neutral position via the shaft 3A.

Also, just before the uJ exchange valve 5D enters the state shown in Fig. 17 as in 6) of -1-9, is it connected to the perforation 6d via the port 1-5Dd or port 5Dg, which is in communication with atmospheric pressure?
Through Ji, 11. Even in the state shown in FIG. 17, the perforation 6d continues to be
g and 5Dd remain open to atmospheric pressure via the hole 5De.

Furthermore, as shown in FIG. 17, the switch jr5C directs the pressure fluid from the fluid pressure source 8 from the port 5Cc to the port 1.
-5 It is in a condition to be fed under pressure to the perforation 5Ba via Ck.

This means that the hole 6d is popularly opened and at the same time the hole 5
Since the pressure fluid is being fed to Ba, the actuator 5B shifts the shaft 3B to the left.

This shift of the shirt 3B to the left causes the sleeve in to be shifted to the side of the gear 1b in FIG. 3 via the fork 3D.

In other words, on the 1, L transmission side, the shift lever
By setting it to 4A or select position Se4,
The power flow path is as described above I'4) Gear 1b and intermediate shaft 1
``Direct connection operation with H'' will be set.

In this case, in Figure 17, port 5CC or port 1 = 5
port) from port 5Cc by communicating with
When the pressure fluid of the fluid pressure source 8 is fed under pressure to the perforation 5Ba through the perforation 5Ck, it is also necessary to send the pressure fluid under pressure through the restriction channel 5Cp, as explained in 3) above. The necessity of the 5Cp is similar to the above 1: For the action in the transmission 1, next, the auxiliary transmission 2
Explain the effect of

When the sleeve 2g is operated to the right from the neutral state in FIG. 3 to connect the /\brake 2h and the gear 2e, the power flows from the intermediate shaft ih to the gears 2a and 2c, the subshaft 2b, A state of low-speed operation is entered in which power is transmitted to the output shaft 2f4 via the i-cars 2d and 2e, the sleeve 2g and the /\bar 2h.

On the other hand, when the sleeve 2g is operated to the left from the neutral state at No. 31 to connect the /\b 2h and the gear 2a, the power flow from the intermediate shaft 1h is changed to the gear 2a,
1. Through sleeve 2g and /\b 2h. , output +'l
The state becomes state 9 of direct coupling operation where the power is transmitted to 12f.

That is, the speed change operation in the auxiliary transmission 2 is l) low speed operation.

2) Direct connection operation.

There are two ways.

- Force distribution 3 In the diagram, the sleeve 2g is operated by the shift operation shown in F.

Shifting in the d direction: In the state IE where the shift lever 4A is set to the arbitrary select position, when the shift lever 4A is shifted from the neutral position shown in Fig. 4 in the direction of the arrow d in the shift direction, the following occurs. action occurs.

The tip 4Ab shifts the housing brake -4B to the right, and the shift lever housing 4B shifts the fork 4D via the IM 4B d from the current neutral position to the right in FIG. This shift causes the fork 4D to shift the sleeve 2g to the right in FIG.

This means that in the explanation of the sub-transmission 2 in FIG. 3, "1f1) Low speed operation" is set.

When the shift lever 4A is shifted in the direction of e, or conversely, at any select position, when the shift lever 4A is shifted in the direction of arrow e from position 1j in Fig. 4, the tip 4Ab moves toward the housing.
The brakeper 4B is shifted to the left, and the shift lever/<-housing 4B shifts the fork 4D from the current neutral position to the left in FIG. 4D shifts the sleeve 2g to the left in FIG.

This means that in the explanation of the auxiliary transmission 2 in FIG. 3, it is set to the state f2)lI'1 connected operation J.

In this way, the main transmission 1' and the auxiliary transmission 2 each have a -14 (speed change) function independently, or because the main transmission 1 and the auxiliary transmission 2 are directly connected by the intermediate shaft 1h. ,
The overall shift range of the Hondo Itsuki consisting of the main transmission 1 and the sub-transmission 2 is the product of the shift range of the main transmission 1 and the two shift ranges of the sub-transmission 2.

In the end, the effect of the overall speed change is as follows.

1) When the shift 1/par 4A is set to the select position S'e,l at the neutral position in the shift direction, the transmission path on the main transmission 1 side is the first gear of the gears lk and 1g.
When the shift lever 4A is shifted in the shift direction d or e at the select position, the sub-transmission 2 side is set to low or high, and as a result, the entire transmission It can operate in first or second reverse gear.

In this case, the shift lever 4 is in the select position Sel.
When the first reverse speed is set by shifting A to the d direction, the power flow becomes the flow shown by the dotted line in Fig. 18, and the shift lever 4A is shifted to the e direction at the select position Sel. As a result, when the second reverse speed is set, the flow of power becomes the flow shown by the broken line in FIG.

Note that FIG. 18 shows a skeleton diagram of FIG. 3.

2) At the neutral position in the shift direction, shift lever 4A
is set to the select position Se2, the transmission path on the main transmission 1 side is set to the second gear train of gears 1j and lf, and then at the select position, shift levers 4A, 4d or When shifted in the shift direction e, the side of the auxiliary transmission 2 is set to low or high, and as a result, the transmission as a whole can operate in the forward first or second speed.

In this case, the power flow in Fig. 18 is "-force distribution 1
It flows through the broken line and dashed line where it flows through the gear 1 and the gear 1g at the select position Set, or through the gears 1j and 1f.

3) At the neutral position in the shift direction, shift lever 4A
At that time, when the select position is set to 1δSe3, the transmission path on the main transmission 1 side is set to the third gear train of gears li and 1e, and then at the select position, the shift lever 4A is set to d or When shifted in the shift direction e, the side of the sub-transmission 2 is set to low or high, and as a result, the transmission as a whole can operate in the third or fourth forward speed.

In this case, in the flow of power in FIG. 18, the broken line and dotted line portions flowing through the gear 1 and the gear 1g at the first select position Sel are
It will flow through part e.

4) At the neutral position in the shift Jj direction, shift lever 4
When A is set to select position 1δSe4, the transmission path on the side of main transmission l is set to the No. 4 gear train that directly transmits from gear lb to intermediate +hlh, and then at select position 2, When the shift lever 4A is shifted in the shift direction d or e, the side of the sub-transmission 2 is set to low or high, and as a result, the entire transmission shifts to 1.
It is possible to drive in 5th or 6th gear with a slight forward motion.

In this case, the power flow in FIG. 18 is such that the portion indicated by the broken line and dotted line that flows through the gear 1 and the gear 1g at the first select position Set flows directly from the gear 1b to the intermediate shaft 1h. .

From the above explanation, Table 1 shows the effects of the embodiments of the present invention.

That is, using Table 1, the shift operation of the entire transmission will be explained as follows.

1) When the shift lever 4A is set to the select position Sel, the actuator used is 5A, one output member is used in the actuator 5A, and one output member is used to drive the fork 3C. Shift to the right and set the transmission path of the transmission 1 to reverse.

In this case, the actuator 5B is in a resting state and keeps the fork 3D set at the neutral position.

Table 1 a. In this state, when the shift lever 4A is shifted from the neutral position in FIG. , the first reverse speed (R1 in Table 1) is set.

b2 In response to the operation in a above, when the shift lever 4A is shifted from the neutral position at the select position Sel in the direction of the arrow e in FIG. As a whole, the transmission is set to
The second reverse speed (R'2 in Table 1) is set.

That is, when the select position S e 1 is selected, the transmission path in the L transmission l is gearbox row 1g, 1k.
If the shift lever 4A is sequentially selectively shifted in the d direction and the e direction at the select position, the first reverse speed and the second reverse speed can be selected.

2) When shift lever 4A is set to select position HS e 2, the actuator used at this time is 5
A, the output member used in the actuator 5A is the other output member, which shifts the fork 3C to the left and sets the transmission path of the main transmission l to a low forward speed state. do.

In this case as well, the actuator 5B is in a resting state, and the fork 3D remains set at the neutral position.

a: In this state, when the shift lever 4A is shifted from the neutral position in FIG. The first speed is set.

b:- When the shift lever 4A is shifted in the direction of arrow e in FIG. 4 from the neutral position of this select position Set in response to the operation in a above, the sub-transmission 2 is brought into the high state as explained above. The transmission is set as a whole,
The second forward speed is set.

That is, when the select position Se2 is selected, the transmission path in the main transmission 1 is selected as the second gear train consisting of the gear trains 1f and 14, and in the select position, the shift lever 4A is moved in the d direction and the e direction. If you shift sequentially between the two forward speeds, you will be able to select between the first and second forward speeds.

Select positions Sel and Se2 in Table 1
As can be understood from the explanation, when two adjacent select positions Sel and Se2 are placed, the actuator 5A or the fork 3C is operated, and in that operation, the actuator 5A selects the select position. At the position Set, the fork 3C is shifted to the right, and at the next select position Se2, the actuator 5A or the fork 3C is shifted to the left.
The order is 11+.

Furthermore, following the above shift operation, the select position is 5e3J9.
If it is selected by YohiSe4, Actue~ri5
A is at rest and the fork 3C remains set at its neutral position, while the actuator 5B moves the fork 3D to +! (By doing so, the actuator 5B operates the sleeve In:4!: in FIG. 3.

In this case, the first set including the sleeve 1q constituted by the first gear train (row of gears 1 and tg) and the second gear train (row of teeth IFj l j and 1f) in FIG. and the second set including the sleeve 1n constituted by the third gear train (the row of gears 11 and 1e) and the fourth gear train (the row of teeth jI 1 b and ld). The first set and the second set have exactly the same configuration in which the sleeves lift in the axial direction, and the difference between the first set and the second set is that in the first set, Operate actuator 5A or sleeve】q,
In the second set, the actuator 5B is connected to the sleeve 1n.
Operate [Only in 5.

Also, in the shift operation in the second group, in the process of selecting the shift lever 4A from the select position Se3 to the select I position Se4, the operation in the shift direction is the same as in the first group. If the shift amplifier is shifted to the main transmission 1, the gear shift will be performed in the forward third gear train shown in Table 1 using the gear train with power distribution 3 and the fourth gear train.
This means that it is possible to select each gear ratio from 1st to 6th forward speed.

In addition, in the embodiment shown in FIG. 3, the main transmission 1 has only the gear train sets of the first set and the set ￥iS2. In FIG. If we further provide a hypothetical third set of 7 orcs 3X and wish to perform a speed change operation in the third set using the actuator 5X, as can be understood from the explanation in Table 1, the third In the gear shifting operation of the set,
It becomes possible to newly provide select positions Se5 and Se6.

In this case, the output member used at the select position Se5 or Se6 is determined by the imaginary line in Table 1, considering the engagement order of the output members in the first set and the second set in Table 1. It is clear that the engagement order of the enclosed output members may be used, and depending on the engagement order, it is possible to newly select each gear ratio from the 7th speed to the 10th speed.

These pairs are thus arranged according to the order of engagement in Table 1.
This means that up to the n/2th set of gear trains can be provided, each consisting of the nth gear train.

Here, with respect to the operation of the shift amplifier, it will be easily understood that the shift down operation can be performed in the reverse order of the above operations.

Above all, as shown in FIG. 19, the first embodiment of the present invention has a +'l shift pattern.
i, the first shift lever 4A is moved to each select position Se1.i in the select direction. arbitrarily select Se2, Se3 or Se4, and press shift lever 4 at each selection position.
The gear shift operation can only be performed by a so-called H-type shift pattern in which A is shifted in the d or e shift direction.

In this case, in FIG. 16, R1, R2, 1, 2, 3,
4, 5 and 6 are reverse first speed, second speed,
Each forward shift position of 1st speed, 2nd speed, 3rd speed, 4th speed, @5th speed, and 6th speed is shown.

Furthermore, as explained in Table 1 above, this shift pattern is theoretically set to the select position Se when gear train sets up to the n/2th set are provided.

It is possible to construct an H-shaped pattern having up to n.

In addition, on the above-mentioned actual male side, the configuration is such that either the shift lever 4A or the shift lever bousing 4B is operated directly, and the movement in the shift direction matches the movement in the axial direction of the fork 4D, etc. .

However, in this configuration, a link mechanism is interposed between the shift lever 4A and the shift lever housing 4B, and the movement of the shift lever 4A in the shift direction and the movement of the fork 4D, etc. in the axial direction are in different directions. It may be.

In short, in the present invention, the movement of the shift lever 4A in the shift direction causes the shift lever housing 4B to move in the axial direction, and the movement of the shift lever 4A in the select direction causes the switching valves 5C and 5D to swing about their axes. It would be good if the relationship was as follows.

Next, the second aspect of the present invention will be explained based on examples.

In an uninvented embodiment of the second invention, FIG. 20 shows an alternative embodiment to FIG. 11, and everything except FIG. 11 has the same structure as the embodiment of the first invention.

That is, in the second invention, the part of the fluid pressure control mechanism that operates the actuators 5A and 5B in FIG. 11 is different.

Actuators 5A and 5B, forks 3C and 3D, and perforations 6b and 6d in FIG. 20 are the same members as those in FIG. 11, respectively.

In FIG. 20, one output member and the other output member of the actuator 5A or 5B are configured to be operated by a first switching valve 5F and a second switching valve 5E.

The second switching valve 5E has a spool valve 5Eb fitted into the cylinder 5Ga so as to be able to slide in the axial direction, and a spool 4f5.
E b is the shift lever housing 4B in Fig. 4.
The hydraulic source 8 is connected to the port 5Ec, and the hydraulic source 8 is connected to the port 5Ec.
Both Ed and 5Ee communicate with the reservoir 7, and the output holes 5Ef and 5Eg both communicate with the inlet port 5FC of the first switching valve 5F.
In F, a rotary valve 5Fb is fitted into the cylinder 5Fa so as to be able to slide in the rotational direction within the cylinder 5Ga,
The center of rotation of the rotary valve 5Fb is directly connected to the shirt 4H in FIG. It communicates with Paul I-5B a.

In the vJ exchange valve 5G, the rotary valve 15Gb is fitted into the cylinder 5Ga so as to be able to slide in the rotational direction within the cylinder 5Ga, and the rotation center of the rotary valve 5Gb is directly connected to the shirt 4E in FIG. 5Gf communicates with the borehole 6b, port 5Gg communicates with the borehole 6d, and port 5G communicates with the borehole 6d.
A fluid pressure source 8 is communicated with O, and the port 5Gd is communicated with a perforation 5Ge that is open to the atmosphere.

In addition, the switching valve 5E is operated by operating the shift lever 4A l (in the shift 1 direction and shifting the shift lever housing sink 4B in the axial direction). When shifted in the direction d, the shift lever is set to the position shown in Fig. 21. (2) When the shift lever 4A is shifted to the direction e shown in Fig. 4, the
The above configuration is set as shown in the figure.

The switching valves 5F and 5G are moved to the select position S of the shift lever 4A by operating the shift lever 4A in the select direction and swinging the rotary valves 5Fb and 5Gb through the shaft 4E. el is set to the state shown in FIG. 20, (2) shift lever 4 is set to the select position S e2 to the state shown in FIG. 23, and (3) shift lever 4A is set to the select position S e3.
The state shown in FIG. 24 is set at (4) shift I, and the state shown in FIG. 25 is set at the select position Se4 of C-4A.

Here, in the configuration of FIG. 20, the sleeve selection mechanism on the male side of the first invention is replaced with the switching valve 4 (5D or switching valve 5G).

The operation of the configuration of the second embodiment of the present invention will be explained below.

As described above, the second invention differs from the first invention only in the configuration of the part that operates the actuators 5A and 5B, and the other parts are the same as the first invention. Therefore, in the following explanation of the operation, in principle, the explanation will be omitted for the parts whose configuration is the same as that of the first invention.The gear shifting operation of the main transmission 1 includes the operation of the shift lever 4A in the shift direction and the operation in the select direction. However, before explaining the shift operation of the main transmission l as a whole, the operation of the switching valve 5E will be explained.

Setting the neutral position in the shift direction: When the shift lever 4A is set to the neutral position shown in the figure at 141SJ at any select position Set, Se2, Se3 or Se4, the movement is transferred to the spool via the tip 4Ab and the shift lever housing 4B. 54.5 E b to the 20th
Set to the neutral position shown in the figure.

As a result, port 5FC in switching valve 5F is connected to port 1-
5E f or 5Bg to port 5Ed or 5
It is open to Lizano h7 via Ee.

In addition, the switching valve 5F is at each select position Sel, Se2, S.
The state when set to e3 or Se4 is as shown in Fig. 20, Fig. 23, as in the explanation of the dual configuration.
It is as shown in Figure 24 or Figure 25.

This means that when the shift lever is set to <-4A or to the middle position in the shift direction, the drilling hole in the actuator 5A
It is always in communication with Aa, the perforation 5Ba in the actuator 5B, or the port 5Ac which is open to the atmosphere.

Therefore, when the shift lever 4A is set to the neutral position in the shift direction, no matter which select position the shift lever 4A is set to, either the perforation 5Aa or 5Ba is exposed to the atmosphere (shirt). 3A
Alternatively, a shift operation in the d direction in FIG. 4 where 3B is set to its neutral position: such an arbitrary selection position Se1. Se2, Se3 or HaS e
4, when the shift lever 4A is shifted from the neutral position shown in FIG. The movement is made via the shift lever housing 4B to shift the spool valve 5Eb to the 20th
It is shifted from the neutral position shown in the figure to the state shown in FIG. 21.

In this way, when the spool valve 5Eb is set to the state 211'a, each of the outlet holes 5Ef and 5Bg is cut off from the ports 5Ed and 5Ee, which are at atmospheric pressure, and fluid is allowed to flow through the port 5Ec. It will be in a state of communication with the pressure source 8.

As a result, the pressure fluid of the fluid pressure source 8 flows from the port 5Ec through the outlet hole 5Ef to the port 5F of the switching valve 5F.
guided by c.

Shift operation in the e direction in Fig. 4: For the above shift in the d direction, the shift lever is
When the shift lever 4A is shifted from the neutral position in FIG. 4 in the e direction, the shift lever 4A swings clockwise around the fulcrum 4'Aa, and as a result, the movement of the tip 4Ab due to the swing moves toward the shift lever housing 4B. Via
Move the spool valve 5Eb from the neutral position in Fig. 20 to 2214.
Set the state to .

In this way, when the spool valve 5Eb is set to the state shown in FIG. 22, the outlet holes 5Ef and 5Bg are cut off from the ports 5Ed and 5Ee, which are at atmospheric pressure, and the fluid pressure source 8 is connected to the port '5E. The state shown in FIG. 22 is such that the pressure fluid of the fluid pressure source 8 is guided from the port 5EC to the port 5Fc of the switch 5f5F via the outlet hole 5Eg.

That is, regardless of whether the shift lever 4A is shifted in the d direction or the e direction, when the shift lever 4A is shifted, the pressure fluid of the fluid pressure source 8 is supplied to the port 5Fc, which is the inlet port of the switching valve 5F. , shift lever-4A
When set at a neutral position in the direction of shift, the 5Fc will be exposed to the atmosphere.

Hereinafter, the operation during upshifting of the main transmission 1 will be explained.

1) Effect of select position Sel: When the shift lever 4A is set at the neutral position in the shift direction and the shift lever 4A is set to the Seleno I position Set, the movement to be set is between the tip 4Ab and the shift lever housing 4B. , pier 4B b, groove 4Ea and sea 1-
71-4E, switch the switching valves 5F and 5G to the 20th
Set to the state shown in the figure.

In this state, the switching valve 5F closes the ports 5Fe, 5Ff, and 5Fg, and in this case, the ports 5Ff or 5Fg remain closed and open to the atmosphere, as will be described later.

Therefore, in this case, port 5Ff and port l-5
The perforation 5Ba communicating with Fg is set open to the atmosphere, so that the actuator 5B keeps the shirt 3B and the fork 3D set in the neutral position.

In addition, in the switching valve 5F, port 5FC is connected to port 5F.
1. In this neutral position state, the port 5Fc is still open to the reservoir 7 via the switching valve 5E, so the perforation 5Aa in the actuator 5A is also under atmospheric pressure. It's open to the public! Ha =. Therefore, in this state, the actuator 5A also sets the shaft 3A to the neutral position.

In addition, in this state, the switching valve 5G is in a state where the port 5Gc communicating with the fluid pressure source 8 is communicated with the port 5Gf, so that the pressure fluid in the fluid pressure source 8 is connected to the port 1-5Gc and 5Gf. It is in a state where it is being force-fed through the perforation 6b.

In this state, when the shift lever 4A is shifted in either the d direction or the e direction in FIG. 4, the pressure of the fluid pressure source 8 is Fluid is pumped to port 5Fc, so that the pressure fluid is transferred to port 5F
C to the perforation 5Aa via the port 5Fd.

In this case, when the shift levers 4A, 4d, or e are shifted, the perforations 5Aa, !
l: The perforation 6b is in a state where the pressure force 1c is being fed, and as a result, the actuator 5A
will shift shirt l-3A to the right.

This shirt]・Shifting 3A to the right is fork 3C
, the sleeve 1q into which the fork 3C is fitted is shifted to the side of the gear 1 in FIG.

That is, on the side of the main transmission l, the shift lever 4
Even if the shift lever 4A or its middle position is shifted in the slow shift direction when the shift lever 4A is set to the select position Set, the power flow path will be the gear 1 described in 11) above. , Ig's No. 1 tooth! 1! ,
Reverse operation in the row will be set to N.

In addition, from this explanation of shifting the shift lever 4A in the d direction or the l o e direction, again, the shift lever 4A.
4A in its select position Set) 1 position, the refill switching valve 5E becomes the state shown in Fig. 20, and the port 5Fc is opened to the open position, thereby causing the actuator 5A to operate as described above. Then, the shaft 3A is returned to its neutral position, so that the sleeve 1q is returned to its neutral position as shown in FIG. .

2) Effect of select position Se2: With the shift lever 4A on the neutral position in the shift direction, select position S
When shifting up from the et position to the select position Se2, the movement in the shift amplifier shifts the switching valves 5F and 5G to the 23rd
Set to the state shown in the figure.

In this state, the switching valve 5F has ports 5Fd and 5Ff.
and 5Fg, in this case Pau) 5Ff
Alternatively, since 5Fg remains closed while being open to the atmosphere as described above, even in this state, the hole 5Ba communicating with port 5Ff and port 5Fg is open to the atmosphere. The actuator 5B continues to set the shaft 3B and the fork 3D to the neutral position.

In addition, in the switching valve 5F, port 5Fc is
However, in this neutral position state, the port 5Fc is still open to the reservoir 7 via the switching valve 5E, so the perforation 5Aa in the actuator 5A is also under atmospheric pressure. It is open to the public. Therefore, in this state, the actuator 5A sets the shirt 3A to the neutral position.

In addition, in this state, the switching valve 5G closes the port 5Gc communicating with the fluid pressure source 8, and the port 5Gd, which is at atmospheric pressure, communicates with the port 5Gf, so the perforation 6b is connected to the port 5Gc. Popularly released from 5Gf and 5Gd through perforated 5Ge.

In this state, when the shift lever 4A is shifted in either the d direction or the e direction in FIG. 4, the pressure fluid of the fluid pressure source 8 is (po)
5Fc, so that the pressure fluid is
It is pumped from C through port 5Fe to perforation 5Aa.

That is, in this case, when the shift lever 4A is shifted to either d or e, pressure fluid is being fed to the perforation 5Aa, and at the same time the perforation 6b is open to the atmosphere. This causes actuator 5A to shift shirt 3A to the left.

This leftward shift of the jaw 2) 3A moves the sleeve 1q through the fork 3C to the center position of the sleeve 1j in FIG.
It will be shifted till j.

That is, on the F transmission side, shift lever 4A
In the state where the shift lever 4A is shifted from its neutral position to the position Se2, the path through which the power flows is determined by the above-mentioned "2) gears 1j, 1f". "Low speed operation in the second gear train" will be set.

Furthermore, when the shift lever 4A is set to shift in the d direction or the e direction, when the shift lever 4A is returned to its neutral position at position S e 2, the switching valve 5E is switched again as shown in FIG. state, port 5Fc
is exposed to the atmosphere, thereby causing the actuator 5 to
A will return the shaft 3A (as described above) to its neutral position, and as a result, the return will cause the shaft 3A to return to its neutral position.
A will return the sleeve 1q to the neutral position shown in FIG. 3 via the fork 3C.

3) Effect of select position Se3: With the shift lever 4A on the neutral position in the shift direction, select position S
When the shift amplifier is shifted from e2 to position Se3, the shift amplified movement is shifted to the tip 4 A b, shift lever/
The switching valves 5F and 5G are set to the state shown in FIG. 24 via the Heno/Ussing 4B, pin 4Bb, groove 4Ea, and shaft 4E.

In this state, the switching valve 5F has ports 5Fd and 5Fe.
and 5Fg closed.

In this case, when the switching valve 5F is shifted up from the state 1 shown in FIG. 23 to the state shown in FIG.
4A is the shift door located above the neutral position 1a in the shift direction as described above.

At this time, the switching valve 5E is set to
The Fc is kept open to the atmosphere.

Therefore, since the port 5Fc, which is at atmospheric pressure, communicates with the port 5Fe in FIG. 23 during the upshift, the port 5Fe is also at atmospheric pressure.

As a result, when shifting up from the state shown in FIG. 23 to the state shown in FIG.
A shift amplifier from the state shown in FIG. S23 to the state shown in FIG. 24 will be formed.

Therefore, in the state shown in FIG. 24, the perforation 5Aa communicating with the port 5Fe is set to atmospheric pressure, and therefore, in this state, the actuator 5A moves the shirt 3A to the neutral position. It is set.

Further, in this case, the perforation 5Ba is in communication with the port 5Fc via the port 5Ff. However, in this state, since the port 5FC is opened to the atmosphere by the switching valve 5E as described above, the perforation 5Ba is also at atmospheric pressure. Therefore, in this state, the actuator 5B is still
B remains set at the neutral position.

In addition, in this state, the switching valve 5G is in a state where the port 5GC communicating with the fluid pressure source 8 is passed through the port 5Gg, so that the pressure fluid at the pressure xA8 passes through the holes 6d through the ports 5GC and 5Gg. It is currently being pumped into the country.

In this state, when the shift lever 4A is shifted in either the d direction or the e direction in FIG. 4, the fluid pressure source 8 is Pressure fluid is pumped to port 5FC, so that pressure fluid is pumped to port 5F
It is pumped from C to borehole 5]3a via po)5Ff.

That is, in this case, when the shift lever 4A is shifted to either d or e, pressure fluid is being fed to both the perforation 5Ba and the perforation 6d. As a result, actuator 5B will shift shaft 3B to the right.

This rightward shift of the shaft 3B causes the sleeve In, into which the fork 3D is fitted, to be shifted to the gear 1i side in FIG. 3 via the fork 3D.

That is, on the side of the main transmission l, the shift lever 4
Even if the shift lever 4A is shifted from its neutral position in any shift direction when the shift lever 4A is set at the select position is e 3, the path through which the power flows will be the same as that of the gears 1i and le described in 93) above. This will be set to ``medium speed operation in gear train No. 3''.

Furthermore, when the shift lever 4A is returned to the neutral position of its select position Se3 from the state in which the shift lever 4A is set to shift in the d direction or the e direction, the switching valve 5E returns to the state shown in FIG. 20. , port 5FC is opened to the atmosphere, which causes actuator 5B to return shaft 3B to its neutral position as described above, which causes shaft 3B to move sleeve In through fork 3D into position. This will return it to the neutral position shown in Figure 3.

4) Effect of select position Se4: With shift lever 4A on the neutral position in the shift direction, select position @
When shifting up from the Se3 position to the select position Se4, the movement during the upshift is the tip 4Ab.
, shift lever housing 4B, pin 4Bb, groove 4Ea
and the switches *5F and 5G are set to the state shown in FIG. 25 via the shaft 4E.

In this state, the switching valve 5F closes the ports 5Fd, 5Fe, and 5Ff, and in this case, port 5Fd or 5Fe remains open and closed as described above, so even in this state, Perforation 5Aa communicating with Po) 5Fd and Po) 5Fe
remains set to the open state, and the actuator 5A continues to set the shaft 3A and fork 3C to the neutral position.

Also, in the switching valve 5F, port 5FC is connected to port 5Fg.
However, in this neutral position, the end port 5FC is open to the reservoir 7 via the switching valve 5E, so the perforation 5Ba in the actuator 5B is also at atmospheric pressure. It is open to the public. Therefore, in this state, the actuator 5B sets the shaft 3B to the neutral position.

In addition, in this state, the switching valve 5G closes the port 5Gc communicating with the fluid pressure source 8, and the port 5Gd, which is at atmospheric pressure, communicates with the port 50g, so the perforation 6d is closed. 5Gg and 5Gd are open to the atmosphere through perforations 5Ge.

In this state, when the shift lever 4A is shifted in either the d direction or the e direction in FIG. 4, the pressure fluid of the fluid pressure source 8 is or port 5FC, so that pressure fluid is transferred to port 5F
It is pumped from C through port 5Fg to borehole 5Ba.

That is, in this case, shift leno<-4A is d or e
In the shifted state, pressurized fluid is being fed to the perforation 5Ba, and at the same time the perforation 6d is open to the atmosphere, which causes the actuator 5B to shift the shirt) 3B to the left. It will shift towards that direction.

This shift of the shaft 3B to the left causes the sleeve in to shift toward the gear 1b in FIG. 3 via the fork 3D.

That is, on the main transmission 1 side, the shift lever 4
When the shift lever 4A is shifted in any shift direction from the middle position when the shift lever 4A is set at the select position Se4, the path through which the power flows is between the gear 1b and the middle gear 1b described above. Direct connection with shaft 1h J
will be set to .

Furthermore, when the shift lever 4A is set to shift in the d direction or the e direction, when the shift lever 4A is returned to the neutral position in the shift direction while remaining in the select position Se4, the switching valve 5E is again shifted to the 20th shift direction. In the state shown in the figure, the port) 5Fc is opened to the atmosphere, and the actuator 5
B will return the sleeve In to the neutral position shown in FIG. 3 via the shaft 3B and fork 3D.

In addition, with respect to the above-mentioned upshift operation, the action of shift town is the opposite action of operating from the above-mentioned select position @ Se4 position to select position sel, but in that operation, the shift-down operation is the opposite of the above-mentioned operation from the select position @ Se4 position to the select position sel. When shifting from the state to the state shown in FIG. 23 at the select position Se2, the downshift is performed at the neutral position in the shift direction, so the switching valve 5E is in the po position at this time.
c is maintained open to the atmosphere.

Therefore, at the time of downshifting, port 1-5 Ff in FIG. 24 has port 5, which is at the atmospheric pressure.
Since Fc is in communication, the port 5Ff is also at atmospheric pressure.

As a result, when shifting down from the state shown in FIG. 24 to the state shown in FIG. 23, the one-turn valve 5Fb closes the port 5Ff, which is at atmospheric pressure, while keeping it at atmospheric pressure.
This results in a downshift from the state shown in FIG. 24 to the state shown in FIG. 23.

Therefore, the 23rd gear which has been downshifted from the state shown in Figure 24.
U;! In state J, the borehole 5Ba communicating with bow) 5Ff is set to atmospheric pressure, and therefore, the actuator 5B sets the shaft 3B to the neutral position in this state. Become.

As described above, in the configuration shown in FIG. 20 as well, the results of controlling the speed change of the main transmission l are similar to those in the first embodiment of the invention.

That is, as explained using Table 1 in the embodiment of the first invention, 1) The actuator 5A is used at the select positions Sel and Se2, and one output member of the actuator 5A is used at the select position S81. is used, and at the select position Se2, the actuator 5A is
2.) Using the actuator 5B at the select positions Se3 and Se4, and using one output member of the actuator 5B at the select position Se3, At select position Se4, actuator 5
The fork 3D is operated using the external force output member in B.

Furthermore, in the embodiment of the second invention, the zolJ(
M other than (corresponding to FIG. 11 in the embodiment of the first invention)
Since the structure of the sub-transmission 2 in the embodiment of the second invention is exactly the same as in the embodiment of the first invention, the operation of the sub-transmission 2 in the embodiment of the second invention is also the same as that in the embodiment of Sl. Thus, in the second invention, as in the first invention, both the main transmission 1 and the auxiliary transmission 2 are operated by a single shift lever 4A, and the overall action of the entire transmission is as follows. It will look like this:

l) When the shift lever 4A is set to the first select position Sel, the first gear train (the gear train of gears lk and Ig in Fig. 3) is selected as the transmission path on the main transmission l side. In this setting state, when the shift lever 4A is shifted from its neutral position to - or the other side in the shift direction,
Simultaneously with this shift, the first gear train is set as a transmission path on the side of the main transmission 1, and at the same time a low or high gear ratio can be set on the auxiliary transmission 2, as a result. , the transmission as a whole is the first in reverse.
2) When the shift lever 4A is set to the second select position Se2, the second gear train (Fig. gears IJ and 1f) can be selected as the transmission path, and in this setting state, when the shift lever 4A is shifted from its neutral position to the - or the other side in the shift direction, the shift occurs simultaneously. A second gear train is installed as a transmission path on the side of the main transmission 1, and at the same time a low or high gear ratio can be set in the auxiliary transmission 2, so that the transmission Overall, it is possible to obtain the first or second forward speed, and 3) When the shift lever 4A is set to the third select position Se3, on the side of the main transmission 1, the Gear train (gear train of gears 1i and 1e in Fig. 3)
is set to be selected as the transmission path, and in this setting state, when the shift lever 4A is shifted from its neutral position to one side or the other side in the shift direction,
At the same time, the third gear train is set as the transmission path on the side of the main transmission 1, and at the same time, a low or high gear ratio can be selected in the auxiliary transmission 2. , the transmission as a whole is the third forward gear.
4) When the select position of the shift lever is set to 1se4, the 4i-th gear train (gear 1b in Fig. 3) is set on the side of the transmission 1. column) is set in a state where it can be selected as a transmission path (a state where gear 1b can be directly connected to intermediate shaft 1h), and in this state, shift lever z';-4A is moved from its neutral position to one side or the other in the shift direction. When shifting to the other side, the fourth gear train is set as the transmission path on the main transmission 1 side at the same time, and at the same time, a low or high gear ratio can be set on the auxiliary transmission 2. As a result, the transmission as a whole can achieve the fifth or sixth forward speed.

As described above, in the second embodiment of the present invention, the operating mechanism of the transmission is capable of operating the shift lever 4A in the select direction from the first select position Sel to the fourth select position Se4, and at each select position. a shift pattern consisting of an operation in one or the other of the shift directions,
That is, all speed ratios can be selected using a single H-type shift pattern.

In addition, in the above explanation of the operation, the case where the select position shifts up from the 1st select position to the 4th select position L1 has been explained, but in the case of conversely shifting down, the above-mentioned operation changes from the 4th select position Se4 to the 1st select position. It will return to the position Set.

Also, when shift lever <-4A or each select position is set to the neutral position in the shift direction, one output member of each actuator 5A and 5B and the output member of the other force are all set to the neutral position. By doing so, each of the sleeves tq, In, and 2g is also set at a neutral position in the axial direction.

Further, as described above, the operation of the second embodiment of the present invention also satisfies the operation shown in Table 1 above.

In this way, in the present invention, both the embodiments of the first invention and the embodiments of the second invention are arranged at each select position Se1, Se2, Se3, or Se4 of the switching valve 5D or 5G, or at an intermediate position between these select positions. Depending on the setting, the state in the perforation 6b or 6d is set, and each select position S of the switching valve 5C or 5F is set.
By setting e1, Se2, Se3 or Se4, or an intermediate position between these select positions, the main transmission 1
Each gear train (first gear train to fourth gear train) is selected.

However, the difference in operation between the first embodiment of the present invention and the second embodiment of the present invention is: - As is clear from the above explanation of the operation, in the main transmission 1, each sleeve 1q or In The timing of engagement with the gear train corresponding to each select position is different.

That is, in the first invention, a of the shift lever 4A
゛When operated in the select direction J, the sleeve lq or in engages with the gear train corresponding to the respective select position, and in the second invention, when the shift lever 4A is operated in the shift direction, the sleeve lq or 1n It engages with the gear train corresponding to the select position.

Is this a difference in the structure? a: In Fig. 11 (embodiment of the first invention), the
The switching valve 5E in FIG. 12 (embodiment of the second invention) is deleted, and the switching valve 5C in FIG. It is possible to set the state at an intermediate position between each of the select positions shown in FIGS. 14 and 16. This is interesting because the above configuration has been added.

Also, is this the time when Shirt) 3A or 3B switches the engagement from one output member to the other output member or vice versa in actuator 5A or 5B?a: Implementation of the first invention In the example, this is performed when shift lever/<-4A is set in the middle of each select position, b: In the embodiment of the second invention, shift lever
4A is set to the neutral position in the shift direction.

In addition, in the embodiment of the first invention and the embodiment of the second invention described above, when the pressure fluid is fed to the perforation 5Aa or 5Ba as the actuators 5A and 5B,
The actuators having the configuration shown in FIG. 8 in which one output member and the other output member shift in the left-right direction were used. However, the configuration of these actuators may also be the configuration shown in FIG. 26. Fig. 26 shows another embodiment compared to Fig. 8. In Fig. 26, the same reference numerals as in Fig. 8 indicate the same materials as in Fig. 8, and the cylinder 5Hb has a piston. The output member 5Hc is fitted into the cylinder 5Hd so as to be able to slide in the axial direction, and the output member 5He, which is a piston, is fitted into the cylinder 5Hd so as to be able to slide in the axial direction. The shaft 3A is fitted into the cylinder 5Hk in the cylinder 5Hk and the cylinder 5Hm in the output member 5He so as to be able to slide in the axial direction, and a groove 5Hi cut in the output member 5Hc is fitted.
corresponds to the groove 5Ah in FIG. 8, the groove 5Hj cut in the output member 5He corresponds to the groove 5Ai in FIG. 8, and a spring 5Hh is provided between the output member 5Hc and the output member 5He in the axial direction The pipe 5) (a corresponds to the perforation 5Aa in FIG. 8, and the pipe 5Ha corresponds to the displacement chamber 5)
It communicates with both Hf and 5Hg.

In the configuration shown in FIG. 26, the operation will be explained below.

When the pressure fluid is being fed to the pipe line 5Ha, the pressure fluid is being fed to the displacement chambers 5Hf and 5Hg.
Each of the output members 5Hc and 5He is pressed toward the center in the axial direction as shown in the figure by the pressure fluid, and the pressed state is in the neutral position shown in the figure,
The neutral position corresponds to the neutral position of the output members 5AC and 5Ad shown in FIG.

When the pressure fluid is fed to the perforation 6b while the actuator 5H is set at this neutral position, the eighth
As explained in the figure, pistons 3Ad and 3A
e is pressed to the left, and as a result, the locking tool 3Aj is pushed into the groove 5H.
j, and the engaging member 1F tool 3Ai is made free in its downward movement. That is, in the axial movement, this causes one output member 5He to engage the shaft 3A, and the other output member 5Hc to engage the shaft 3A.
The engagement with A is brought into a disengaged state.

Moreover, when the perforation 6b is opened to the atmosphere while the actuator 5H is set at this neutral position, as explained in FIG. 8, the pistons 3Ad and 3
Ae is suppressed to the right by the force of the spring 3Ap, and as a result, the locking tool 3Ai is engaged with the groove 5H4, and the locking tool 3Aj is free in its vertical movement. . That is, this means that in the axial movement, the other output member 5Hc is engaged with the shaft 3A, and one output member 5He and the shaft 3A are brought into a non-coupled state as described above. , Shan) 3A is engaged with either the output member 5He or 5Hc, when the conduit 5Ha is opened to the atmosphere, the displacement chambers 5Hf and 5Hg are also opened to the atmosphere,
As a result, the output members 5He and 5Hc are connected to the spring 5
It will be shifted left and right by the auxiliary force of Hh.

In this case, when the conduit 5Hf is opened to the atmosphere while the shaft 3A is engaged with the output member 5He, the output member 5He shifts the shaft 3A to the right, and the shaft 7) 3A Output member 5. When the conduit 5Hf is opened to the atmosphere while being engaged with the output member 5He, the output member 5He shifts the shaft 3A to the left.

As can be understood from the above explanation, actuator 5H
(Shirt) 3 when pressure fluid is pumped into pipe 5Ha
A is set at the neutral position, and when the pipe 5Ha is opened to the atmosphere, the shirt 3A is shifted to the right or left.

In this case, if the actuators 5A and 5B in FIG. 11 or 20 are replaced with the actuator 5H in FIG. 26, in the switching valve 5c in FIG. , perforation 5
Cf and 5Gg are configured to communicate with the fluid pressure source 8,
In the case of FIG. 20, if the switching valve 5E is configured to transmit pressure fluid when in the neutral position state, and to transmit the atmospheric pressure state when the switching valve 5E is shifted from the neutral position state in either direction. In other words, the actuator 5H operates in the opposite manner to that of the actuator 5A when pressure fluid is fed to the pipe line 5Ha and when the pipe line 5Ha is opened to the atmosphere, and the present invention adopts both cases. can do.

In short, the actuator 5A or 5B used in the present invention sets one output member and the other output member to their neutral positions when a zero value signal is transmitted to the perforation 5Aa or 5Ba, and 5Aa or 5Ba
It is only necessary that one output member and the other output member be shifted in the left and right direction when the signal is transmitted.

[Brief explanation of drawings]

FIG. 1 shows a shift pattern of the shift lever in a conventional transmission having an auxiliary transmission 2, and FIG. 2 shows a shift pattern of a conventional transmission having the shift pattern shown in FIG. 3 shows a front view of the shift shaft, and FIG. 3 shows a side sectional view of the gear part in a conventional transmission in which the main transmission 1 and the auxiliary transmission 2 are directly connected. , FIG. 3 is also the transmission main body part of the embodiment of the present invention, and FIG. 4 shows the sleeves in, 1q, and 2 in FIG. 3.
Fig. 5 shows a side sectional view of an operating mechanism of a transmission as an embodiment of the present invention that operates g. Figure 7 shows a cross-sectional view of Rolo in Figure 4, and Figure 8 shows a shirt in Figure 4.
Fig. 3A shows a side sectional view of an actuator 5A that operates the actuator 3A;
Each of FIG. 9 and FIG. 1O shows the actuator 5
FIG. 11 shows a system diagram of the hydraulic control circuit 5 that operates the actuators 5A and 5B, and FIGS. 12, 13, 14, and 15. 16 and 17 are explanatory views of the operation of the switching valves 5C and 5D in FIG. 11, respectively. Figure 18 shows the gear train in Figure 3.
FIG. 19 shows a shift pattern of the shift lever 4A in FIG. 4, FIG. 20 shows another embodiment of the present invention with respect to FIG. 11, and FIG. 21 and 22 each illustrate the operation of the switching valve 5E in FIG. 20, and FIGS. 23, 24, and 25 each illustrate the operation of the switching valve 5F and 5G in FIG. Omitting the explanatory drawings, FIG. 26 shows another embodiment of the present invention with respect to FIG. 8. The main symbols used in the examples are as shown below. l: Main transmission, la: input shaft, 1h: intermediate shaft, 1n and 1q sleeves, 1m and lP
:Hub. 2: Sub-transmission, 2f: Output shaft, 2g: Nurieve,
2h: hub. 3A and 3B: shaft, 3C and 3D: fork. 4A: Shift lever, 4B: Shift lever housing,
4D two fork, 4E: shaft. 5: Hydraulic control circuit, 5A, 5B and 5F: Actuator, 5C15D, 5E, 5F and 5G: Switching valve, 5Aa and 5Ba: Perforation, 5Ac, 5Ad
, 5Hc and 5He: output member, 5Ha: conduit. 6b and 6d; perforation. Patent applicant: Aisin Seiki Co., Ltd. Representative: Yoshihiro Nakai Figure 2 Figure 5 Figure 11 Figure 18 Figure 19

Claims (1)

[Claims] 1. Each of the first to nth gear trains branched from the input shaft has one gear train for each of the adjacent odd-numbered and even-numbered gear trains, starting from the first gear train. n/2 sets are formed from the first to n/2 sets, and the axial direction between the final gear in the odd-numbered gear train and the other final gear in the even-numbered gear train is A sleeve fitted to the intermediate shaft is interposed between each pair to enable constant torque transmission, and the sleeve is selectively moved from a neutral position in the axial direction to one or the other of the axial directions. A main transmission having the above configuration, wherein the rotation of the final gear or the other final gear is alternatively transmitted to the intermediate shaft via the sleeve by unifying shifting; and the intermediate shaft; Another sleeve is interposed in the axial direction between one final gear in the gear train branched from the intermediate shaft and is fitted to the output shaft to enable constant torque transmission, and the other sleeve is , the rotation of the one final gear or the intermediate shaft is alternatively transmitted to the output shaft via the sleeve by shifting from the neutral position in the axial direction to one or the other of the axial directions; In the gear transmission consisting of both transmissions, the movement of the shift lever in the select direction is linked to the switching valve and the sleeve selection mechanism, and each set has its own auxiliary transmission. an actuator for operating the sleeves of the set, and the switching valve is configured to: (a) when the shift lever is sequentially set from the first select position to the n-th select position, the switching valve moves from the first select position to the adjacent one; a setting state in which a signal having a value of 1 is sequentially transmitted from the actuator in the first group to the actuator in the n/2 group for each two matching select positions, b: the above; When the shift lever is set in the middle of the select position, a zero-value signal is given to each of the actuators, and each of the actuators has the above configuration, and a: the signal given to the actuator is zero. When the value is 1, set both one output member and the other force output member in the actuator to the neutral position in the axial direction, and b: the signal given to the actuator has a value of 1. , the sleeve selection mechanism has the above structure, wherein the switching valve shifts the one output member to one side and the other output member to the other side in the axial direction. When the shift lever is set to an odd-numbered select position, a: When the shift lever is set to an odd numbered select position, , the sleeve in the actuator set is coupled to the one output member and separated from the other output member in its axial movement; b: when the shift lever is set to an even numbered select position; , the sleeve in the actuator set is linked to the other output member and separated from the one output member in its axial movement, and the movement of the shift lever in the shift direction is The other sleeve is interlocked with the other sleeve, and the interlocking is such that when the shift lever is selectively operated in one direction or the other direction in the shift direction from a neutral position in the shift direction, the other sleeve is moved in the axial direction. An operating mechanism for a transmission configured as described above, which is selectively shifted from a neutral position to one or the other position. 2. Each gear train from the first to the nth branched from the input shaft is a gear train in which each of the adjacent odd-numbered gear trains and even-numbered gear trains forms one set, starting from the first gear train. forming n/2 sets from 1st to n/2th, and between the final gear in the odd-numbered gear train and the other final gear in the even-numbered gear train in the axial direction, respectively. A sleeve fitted to the intermediate shaft is provided for each set to enable constant torque transmission, and the sleeve is selectively shifted from a neutral position in the axial direction to one or the other of the axial directions. a main transmission having the above configuration, in which rotation of the final gear or the other final gear is alternatively transmitted to the intermediate shaft via the sleeve; Another sleeve is interposed between the final gear in the gear train and the last gear in the axial direction, and is fitted to the output shaft to enable constant torque transmission. A sub-transmission having the above configuration, wherein rotation of the one final gear or the intermediate shaft is alternatively transmitted to the output shaft via the sleeve by shifting from the neutral position to one or the other of the axial directions. In the gear transmission consisting of both transmissions, the movement of the shift lever in the select direction is linked to the first switching valve and the sleeve selection mechanism, and each set has a An actuator for operating the sleeve is provided, and the first switching valve sequentially sets the shift lever from a first select position to an n-th select position when the shift lever is set at a neutral position in the shift direction. When the actuator in the first set is switched to the n/2 set, the signal from the second switching valve is sequentially transmitted from the first select position to the n/2 set for each of the two adjacent select positions. Each of the actuators has the above-mentioned configuration, and when the signal from the second switching valve becomes zero value, one of the actuators and the other output member are respectively set to the neutral position in the axial direction, and b: When the signal from the second switching valve has a value of 1, the one output member is set in the neutral position in the axial direction. The sleeve selection mechanism has the above structure, wherein the first switching valve transfers a signal from the second switching valve to the actuator. With respect to the actuator prepared to transmit, a: in the odd-numbered select position setting of the shift lever, the sleeve in the actuator set is linked to the one output member in its axial movement; b: in the even-numbered select position setting of the shift lever, the sleeve in the actuator set is linked to the other output member in its axial movement; has the above relationship, the movement of the shift lever in the shift direction is interlocked with the other sleeve and the second switching valve, and the interlocking means that the shift lever is in a neutral position in the shift direction. When the center is selectively operated in one or the other direction in the shift direction, the other sleeve and the second switching valve are alternatively shifted in the one or the other direction from the neutral position in the axial direction, respectively. The second switching valve: a: transmits a zero value signal when set at the neutral position in the axial direction; and b: transmits a signal of zero value from the neutral position in the axial direction to one or the other. An operation mechanism for a transmission having the above configuration, which transmits a signal with a value of 1 when shifted.