JP6011020B2 - Vehicle transmission - Google Patents

Description

  The present invention relates to a transmission for a vehicle in which a shift operation is automated based on a manual transmission.

  A general 6-speed manual transmission (hereinafter referred to as a transmission) will be described with reference to FIG.

  The transmission TM has an input shaft 10, an output shaft 11 arranged coaxially with the input shaft 10, and a countershaft 12 arranged parallel to these. An input main gear 13 is provided on the input shaft 10. The output shaft 11 includes a first speed (1st) main gear M1, a second speed (2nd) main gear M2, a third speed (3rd) main gear M3, a fourth speed (4th) main gear M4, and a reverse main gear MR. And a 6th speed (6th) main gear M6 is fixed. The countershaft 12 has an input subgear 14 meshing with the input main gear 13, a first speed subgear C1 meshing with the first speed main gear M1, a second speed subgear C2 meshing with the second speed main gear M2, and 3 A third speed sub gear C3 meshing with the speed main gear M3, a fourth speed sub gear C4 meshing with the fourth speed main gear M4, and a reverse sub gear CR meshing with the reverse main gear MR via the idle gear IR are fixed. In addition, a sixth-speed sub gear C6 that meshes with the sixth-speed main gear M6 is pivotally supported.

  According to this transmission TM, when the sleeve S1 that is spline-engaged with the hub H1 fixed to the output shaft 11 is spline-engaged with the dog DR of the reverse main gear MR, the output shaft 11 rotates reversely, and the sleeve S1 is rotated by one. When the spline meshes with the dog D1 of the high speed main gear M1, the output shaft 11 rotates at the first speed. Then, when the sleeve S2 meshed with the spline in the hub H2 fixed to the output shaft 11 is meshed with the dog D2 of the second-speed main gear M2, the output shaft 11 rotates at the second speed and the sleeve S2 is rotated to the third speed. When the spline meshes with the dog D3 of the main gear M3, the output shaft 11 rotates at a speed equivalent to the third speed.

  When the sleeve S4, which is spline-engaged with the hub H4 fixed to the output shaft 11, is spline-engaged with the dog D4 of the 4-speed main gear M4, the output shaft 11 rotates at a speed equivalent to the 4-speed, and the sleeve S4 is rotated to the input main gear. When the spline meshes with 13 dogs D5, the output shaft 11 rotates at a speed equivalent to 5th speed (5th) (directly coupled). Then, when the sleeve S6 that is spline-engaged with the hub H6 fixed to the sub-shaft 12 is spline-engaged with the dog D6 of the sixth-speed sub-gear C6, the output shaft 11 rotates at the equivalent of the sixth speed.

  Each of the sleeves S1, S2, S4, S6 is manually operated by a driver by a shift lever in the cab through the shift forks F1, F2, F4, F6 and the shift shaft.

  A shift control system in an actual transmission will be described with reference to FIGS.

  9 and 10, low-speed and high-speed shift shafts 15a and 15b are provided in parallel to the vehicle width direction and along the vehicle direction. A first shift fork F1 that switches reverse (Rev) is fixed, and a second shift fork F2 that switches between second and third speeds is provided in front of the first shift fork F1 so as to be movable with respect to the shift shaft 15a.

  On the other hand, a third shift fork F4 for switching between the fourth speed and the fifth speed is provided in front of the high speed side shift shaft 15b so as to be movable with respect to the shift shaft 15b. A sub shift shaft 15c is provided behind the shift shaft 15b in parallel with the shift shaft 15b, and the shift shaft 15b and the sub shift shaft 15c are connected by a link lever 16. A fourth shift fork F6 for switching to the 6th speed is fixed to the sub shift shaft 15c.

  The shift shaft 15a on the low speed side is provided with a boss 17a located in front of the second shift fork F2, and the Rev-1 speed shift block B1 is integrally provided on the boss 17a. Further, the high-speed shift shaft 15b is provided with a boss 17b located behind the third shift fork F4, and a six-speed shift block B6 is integrally provided on the boss 17b.

  Between the Rev-1 speed shift block B1 and the 6th speed shift block B6, a 2-3 speed shift block B2 and a 4-5 speed shift block B4 are arranged. The 2-3 speed shift block B2 is connected to the second shift fork F2 by a connecting member 18a, and the 4-5 speed shift block B4 is connected to the third shift fork F4 by a connecting member 18b.

  The shift blocks B1, B2, B4, and B6 are in order of the Rev-1 speed shift block B1, the 2-3 speed shift block B2, the 4-5 speed shift block B4, and the 6 speed shift block B6 from the low speed stage to the high speed stage. By selecting the shift block B1, B2, B4, B6, which are provided side by side and are sequentially selected from the neutral position of Rev-1 to 2-3, 4-5, and 6th by operating the shift lever. The shift operation is performed from the neutral position to the gear position.

  That is, when the shift lever is engaged with the Rev-1 speed shift block B1, the Rev-1 speed shift block B1 is moved forward by the shift lever via the boss 17a and the shift shaft 15a. The first shift fork F1 moves forward, switches from the neutral position to the first speed, and moves the Rev-1 speed shift block B1 rearward so that the first shift fork F1 moves rearward to the neutral position. To Rev.

  When switching between the 2nd speed and the 3rd speed, the shift lever engaging position is selectively moved to the 2-3th speed shift block B2, and in this state, the 2-3th speed shift block B2 is moved backward by the shift lever. Thus, the second shift fork F2 is moved rearward through the connecting member 18a to switch from the neutral position to the second speed, and the second to third speed shift block B2 is moved forward to move the third speed from the neutral position. Switch to.

  When switching between the 4th speed and the 5th speed, after the shift lever is selectively moved to the 4-5 speed shift block B4, the 4-5th speed shift block B4 is moved rearward to move the third through the connecting member 18b. The shift fork F4 is moved backward to switch from the neutral position to the fourth speed, and the 4-5 speed shift block B4 is moved forward to switch from the neutral position to the fifth speed.

  Furthermore, when switching to the 6th speed, the shift lever selects the 6th speed shift block B6 and then moves the 6th speed shift block B6 rearward so that the shift shaft 15b is moved backward via the boss 17b. The sub-shift shaft 15c moves forward via the link lever 16, and the fourth shift fork F6 moves forward to switch from the neutral position to the sixth speed.

  In FIG. 9 and FIG. 10, reference numeral 19 denotes a ball click for maintaining each gear position and neutral position.

  FIG. 11A shows the above-described shift pattern of the transmission TM.

  In FIG. 11A, Rev and 1st are shifted in the Rev-1 speed shift block B1 described in FIGS. 9 and 10, and 2nd and 3rd are shifted in the 2-3 speed shift block B2. In the 4-5th speed shift block B4, 4th and 5th are shifted, and in the 6th speed shift block B6, 6th is shifted. The shift lever moves along the neutral position of the Rev-1 speed shift block B1, the 2-3 speed shift block B2, the 4-5 speed shift block B4, and the 6th speed shift block B6, which are arranged in alignment. It is designed to operate.

  When performing a shifting operation with this manual transmission, for example, in the case of 2nd to 3rd gears, after shifting from the 2nd gear to the neutral position as shown in FIG. 11 (b), the gear shifting operation from the neutral position to the 3rd gear. In the case of a straight shift (that is, a shift without a select operation, so-called straight shift) and in the case of shifting operation from the third speed to the fourth speed as shown in FIG. 11C, the gear is removed from the third speed to the neutral position. Thereafter, there is a case of a key shift in which the select operation is performed at the position of the 4-5th speed shift block B4 and the gear is shifted from the neutral position to the fourth speed (that is, a shift with a select operation, so-called key shift).

  An automatic transmission based on the transmission shown in FIGS. 9 and 10 and provided with an automatic shift device requires the same operation as described above.

  That is, a shift lever that selectively engages the Rev-1 speed shift block B1, the 2-3 speed shift block B2, the 4-5 speed shift block B4, and the 6th speed shift block B6 is provided. It is necessary to perform an operation of moving the shift blocks B1, B2, B4, and B6 by being driven by the actuator.

  When the shift operation is performed by the actuator, the engine speed and the output shaft speed are detected by the rotation sensor in the transmission TM described in FIG. 8, and this is input to the engine control unit (ECU), which is input to the ECU. Based on the stored shift map, the corresponding gear stage actuator is driven and controlled to achieve an appropriate gear stage.

JP 2003-240115 A JP 2010-159823 A

  However, in a general automatic shift device having one actuator for each shift operation and select operation, in the case of a key shift, gear shift, select operation, and gear shift operation are performed sequentially, and each operation is completed. It takes time for the ECU to judge this in terms of control. For this reason, there is a problem that shifting takes longer time in the key shift than in the straight shift.

  Therefore, as shown in FIG. 12, actuators A1, A2, A4, and A6 for independently operating the shift blocks B1, B2, B4, and B6 are provided, and these actuators A1, A2, A4, and A6 are driven sequentially. Therefore, the shift operation was abolished, the straight shift was a normal shift operation (shift operation from 2nd to 3rd in the figure), and the key shift was the gear removal of the current gear stage (shift operation from 3rd to neutral in the figure). Then, after determining the gear removal at the position surrounded by a circle in the figure, the gear may be engaged by a shift operation of the corresponding gear stage (in the figure, a shift operation from the neutral position of the shift block B4 to 4th).

  The automatic shift device of FIG. 12 can be based on the transmission shown in FIGS. 8 to 10, but the actuators A1, A2, A4, and A6 depend on the number of shift blocks B1, B2, B4, and B6. In order to mount these actuators A1, A2, A4, and A6, the mountability deteriorates and these drive circuits are also required. When the actuator is hydraulic or pneumatic, it can be constituted by a cylinder / piston, but there is a problem that hydraulic and pneumatic piping and its hydraulic or pneumatic source are required.

  Further, as shown in FIG. 13, the opposite gear stage is set to be an odd and even set, that is, 1st-3rd, 5th-Rev, 2nd-4th, 6th straight shift can be performed, and 1st-3rd, 5th-Rev is Shift operation is performed by the odd-numbered actuator Ao, and 2nd-4th and 6th are configured to be shifted by the even-numbered actuator Ae. As a result, the shift operation from the 2nd speed to the 3rd speed is performed by shifting from the 2nd position to the neutral position with the even-numbered actuator Ae to release the gear, and then performing the gear-release determination, and then with the odd-numbered actuator Ao. Shift from 3rd to 3rd to shift gears, and from 3rd to 4th gears, the odd-numbered actuator Ao shifts from 3rd to the neutral position to release the gear, and then performs the gear release determination. After that, the even-numbered actuator Ae can perform gear shifting by shifting from neutral to 4th.

  Since the automatic shift device of FIG. 13 can be performed with the odd-numbered actuator Ao, the even-numbered actuator Ae, and the actuator for selection, the number of actuators can be reduced, and the selection operation can be performed before shifting, thus affecting the shifting time. do not do.

  However, the arrangement of the shift forks in the shift control system of the transmission explained in FIG. 9 and FIG. 10 is a structure corresponding to each gear stage of the transmission explained in FIG. This cannot be applied to a manual transmission of the above, and a dedicated transmission is required, which causes a significant deterioration in cost.

  Therefore, as shown in FIG. 14, the alignment arrangement of the shift blocks B1, B2, B4, and B6 is kept as it is, and the shift block B1 of one column and the shift block B4 of three columns are replaced by the actuator Aa and the shift block B2 of two columns. By shifting the four rows of shift blocks B6 with the actuator Ab, the shift block B6 can be applied to an existing manual transmission.

  However, if the shift block B1 of 1 row and the shift block B4 of 3 rows are shifted by the actuator Aa, and the shift block B2 of 4 rows and the shift block B6 of 4 rows are shifted by the actuator Ab, the shift blocks B1, B2, B4, B6 In addition, the actuators Aa and Ab need to be arranged to face each other, and the mechanism for the selection operation becomes complicated, which causes a problem of increasing the size, complexity, and cost of the automatic shift device.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems and provide a vehicle transmission that can be automatically shifted using a manual transmission as it is.

  In order to achieve the above object, according to the first aspect of the present invention, a reverse gear, a first gear, a second gear, a third gear, a fourth gear and a fifth gear are arranged opposite to each other and a sixth gear is provided. In a transmission of a vehicle for automatically shifting by performing a shift operation after selecting a shift block using a shift block provided with a shift block for shifting a stage, a reverse -1 speed in a select direction, Shift blocks arranged in order of 4th-5th speed, 2nd-3rd speed, 6th speed, first to fourth shift levers engaged with the aligned shift blocks, and select positions of the first and third shift levers A first actuator that shifts the first or second shift lever selected by the select actuator, and a select actuator that selects one of the select positions of the second and fourth select levers And actuator, a transmission for a vehicle, characterized in that a second shift actuator for shifting the third or fourth shift lever that is selection by the select actuator.

  In the invention of claim 2, the reverse gear, the first gear, the second gear, the third gear, the fourth gear and the fifth gear are arranged opposite to each other, and a parallel shift shaft is provided on the sixth gear. The first shift fork for switching between the reverse and first gears is fixed to the shift shaft and the reverse-first shift block is fixed, and the second and third gears are fixed to one shift shaft. A second shift fork that is movable in the axial direction is connected to the second shift fork, and a second shift fork is connected to the second shift fork. A 6-speed shift block is connected via a link lever, and a third shift fork that switches between a 4-speed and 5-speed gear stage is movable in the axial direction on the other shift shaft. With kicked, shift block of the 4th speed -5 velocity is a lever apparatus for a vehicle according to claim 1 which is connected to the third shift fork.

  According to a third aspect of the present invention, the first shift lever and the second shift lever are formed in an L shape and are provided to be horizontally rotatable with an interval in the vertical direction. The L-shaped lever part is engaged with the reverse-first shift block and the fourth-speed shift block, respectively, and the first shift lever and the second shift lever are rotated to move the lever part. 2. The vehicle transmission device according to claim 1, wherein the shift block for shifting the reverse speed 1 and the shift block for 4 speeds to 5 speeds is shifted through the shift block.

  According to a fourth aspect of the present invention, the third shift lever and the fourth shift lever are formed in an L shape and are provided to be horizontally rotatable with an interval in the vertical direction, and the first shift lever and the second shift lever are provided. The lever part which is provided so as to face the lever and is bent in the L-shape of the third shift lever and the fourth shift lever is engaged with the shift block of 2nd-3rd speed and the shift block of 6th-5th speed, respectively. 4. The vehicle transmission according to claim 3, wherein the third shift lever and the fourth shift lever are rotated to shift the second-speed / third-speed shift block and the sixth-speed shift block via the lever portion. is there.

  According to a fifth aspect of the present invention, the select actuator is associated with either the first shift cylinder that engages with either the rear end of the first or second shift lever, and any one of the rear ends of the third or fourth shift lever. A second shift cylinder, and a biasing means for biasing the first shift cylinder and the second shift cylinder so as to always engage the rear ends of the second and third shift levers, respectively; 2. A reciprocating actuator that performs a selection operation by engaging the first shift cylinder or the second shift cylinder against the rear end of the first or fourth shift lever against the biasing means. This is a vehicle transmission device.

  The present invention exhibits an excellent effect that automatic shifting can be performed with a simple structure by using an existing manual transmission only by changing the arrangement order of the shift blocks.

It is a disassembled perspective view of the shift control system and automatic shift device of the transmission of the vehicle of the present invention. It is a perspective view of the shift control system of the transmission of the vehicle of the present invention. FIG. 3 is a plan view of FIG. 2. It is a perspective view of the automatic shift device of the transmission of the vehicle of the present invention. FIG. 5 is a front view of FIG. 4. It is a figure which shows the detail of the shift means and actuator in FIG. It is a figure explaining the shift pattern and speed change action in the transmission of the vehicle of the present invention. It is a skeleton figure of the existing transmission applied to this invention. It is a perspective view of the shift control system of the conventional vehicle transmission. FIG. 10 is a plan view of FIG. 9. It is a figure explaining the shift pattern and speed change action in the conventional gearbox of vehicles. It is a figure explaining a shift pattern and a shift operation when an automatic shift device is applied to a conventional vehicle transmission. It is a figure explaining other shift patterns and shift operation of an automatic shift device. It is a figure explaining other shift patterns and shift operation when an automatic shift device is applied to the conventional transmission.

  A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

  First, the transmission TM used in the present invention is as described with reference to FIG.

  Next, the shift control system of the transmission TM in FIG. 8 will be described with reference to FIGS.

  The shift control system of the transmission TM shown in FIGS. 1 to 3 is basically the same as the conventional shift control system described with reference to FIGS. 9 and 10, and the same members are described using the same reference numerals. .

  In the shift control system of FIGS. 1 to 3, the arrangement of the shift shafts 15a and 15b and the first to fourth shift forks F1, F2, F4, and F6 is the same. Shift shafts 15a and 15b are provided parallel to the vehicle width direction and along the vehicle direction, and a first shift for switching between the first speed and reverse (Rev) is provided behind one shift shaft 15a on the low speed side. The fork F1 is fixedly provided, and a second shift fork F2 for switching between the second speed and the third speed is provided in front of the fork F1 so as to be movable with respect to the shift shaft 15a.

  On the other hand, a third shift fork F4 that switches between the fourth speed and the fifth speed is provided in front of the other shift shaft 15b on the high speed side so as to be movable with respect to the shift shaft 15b. A sub shift shaft 15c is provided behind the shift shaft 15b in parallel with the shift shaft 15b, and the shift shaft 15b and the sub shift shaft 15c are connected by a link lever 16. A fourth shift fork F6 for switching to the 6th speed is fixed to the sub shift shaft 15c.

  The shift shafts 15a, 15b, the second shift fork F2, and the third shift fork F4 are configured such that the respective gear positions and the neutral positions are held by the ball click 19.

  The difference between the shift control system of FIGS. 1 to 3 and the shift control system of FIGS. 9 and 10 is that the alignment order of the shift blocks B1, B2, B4, and B6 is changed.

  That is, in the select direction from one shift shaft 15a on the low speed side to the other shaft 15b on the high speed side, the shift block B1 for reverse-1 speed, the shift block B4 for 5th speed-5th speed, the shift for 2nd speed-3rd speed The block B2 and the 6-speed shift block B6 are arranged in order, and the 2-speed-3 speed shift block B2 and the 4-speed-5-speed shift block B4 are replaced with the arrangement shown in FIGS. It is a thing.

  The reverse-first speed shift block B1 is fixed to one shift shaft 15a via a boss 17a, and the sixth speed shift block B6 is fixed to the other shift shaft 15b via a boss 17b. The 4-speed-5-speed shift block B4 is connected to the third shift fork F4 by the connecting member 21a, and the 2-speed-3 speed shift block B2 is connected to the second shift fork F2 by the connecting member 21b.

  A slot 22 is formed in the 2nd to 3rd shift block B2, and a guide shaft 23 provided in the boss 17b of the 6th shift block B6 is inserted into the slot 22 as shown in FIG. The slot 22 of the shift block B2 and the guide shaft 23 guide the movement of the 6-speed shift block B6 in the shift direction. The long hole 22 provided in the 4th-5th shift block B4 is formed in order to share the parts with the 2nd-3rd shift block B2.

  The aligned shift blocks B1, В4, В2, and В6 are engaged with the first to fourth shift levers 24a, 25a, 25b, and 24b in the order of alignment, and the first to fourth shift levers 24a, 25a, 25b, The shift operation is performed at 24b.

  As shown in FIGS. 1, 4A, and 5, the first shift lever 24a and the second shift lever 25a are provided so as to face the third shift lever 25b and the fourth shift lever 24b and are respectively L-shaped. It is formed in a shape.

  As shown in FIG. 5, the second shift lever 25a and the first shift lever 24a are provided on the shaft 28a so as to be horizontally rotatable with a vertical interval, and are bent into an L shape of the first shift lever 24a. The lever portion 26a is engaged with the reverse-first gear shift block B1, and the lever portion 27a of the second shift lever 25a bent in an L-shape is engaged with the fourth-speed fifth gear shift block B4. Provided.

  The third shift lever 25b and the fourth shift lever 24b are provided on the shaft 28b so as to be horizontally rotatable with a space therebetween in the vertical direction, and the lever portion 27b bent in an L shape of the third shift lever 25b has a second speed. A lever portion 26b that is engaged with the third-speed shift block B2 and bent into an L shape of the fourth shift lever 24b is provided so as to engage with the sixth-speed shift block B6.

  These first to fourth shift levers 24a, 25a, 25b, 24b are rotated about the shift shafts 28a, 28b, so that each shift block B1, B4, B2, and B6 are shifted.

  The rear ends of the first to fourth shift levers 24a, 25a, 25b, 24b (ends in the direction opposite to the lever portions 26a, 27a, 27b, 26b) are selected by the select actuator 30.

  The select actuator 30 is normally held in a state where the second shift lever 25a and the third shift lever 25b are selected and driven to select the first shift lever 24a or the fourth shift lever 24b. It has become.

  The first and second shift levers 24a and 25a are shifted by the first shift actuator 31a, and the third and fourth shift levers 25b and 24b are shifted by the second shift actuator 31b.

  The select actuator 30 and the first and second shift actuators 31a and 31b will be described in more detail.

  The select actuator 30 includes a rotatable first shift cylinder 34a that engages with any one of the rear ends (ends opposite to the levers 26a and 27a) of the first and second shift levers 24a and 25a, and a third shift cylinder 34a. , A second shift cylinder 34b that engages with any of the rear ends of the fourth shift levers 25b, 24b (ends opposite to the lever portions 27b, 27a), and the first and second shift cylinders 34a. , 34b, the first and second urging means 32a, 32b, and the first, second biasing means 32a, 37b, which are held at the positions where they are always engaged with the second shift lever 25a, the third shift lever 25b, respectively. The engaging projections 37a and 37b of the shift cylinders 34a and 34b include a reciprocating actuator 33 that selectively moves to a position where it engages with the first shift lever 24a and the fourth shift lever 24b.

  The first and second urging means 32a and 32b include springs 35a and 35b supported by plugs and plungers 36a and 36b connected to the springs 35a and 35b. The plungers 36a and 36b are first and second plungers 36a and 36b. It is provided so as to abut on stopper pieces 39a, 39b provided on the shift cylinders 34a, 34b. The first and second urging means 32a and 32b press the lower stopper pieces 39a and 39b, and the first and second shift cylinders 34a and 34b and the upper stopper pieces 39a and 39b are connected to the transmission case. Are held in a rotational position where they abut against the fixed portions 50a, 50b, etc., so that the engagement protrusions 37a, 37b of the first and second shift cylinders 34a, 34b are connected to the second shift lever 25a, the third shift lever. It is held at a position that is always engaged with 25b.

  The reciprocating actuator 33 includes a bidirectional solenoid (including a linear solenoid) 51 and select shafts 52a and 52b connected to the bidirectional solenoid 51. The select shafts 52a and 52b are first and second shift cylinders 34a. , 34b abutting against the stopper pieces 39a, 39b at the lower part of the first and second shift cylinders 34a by pressing the stopper pieces 39a, 39b against the first and second urging means 32a, 32b. , 34b are rotated to a select position where they engage the rear ends of the first shift lever 24a and the fourth shift lever 24b.

  The reciprocating actuator 33 is configured by a bidirectional solenoid 51 and, as shown in FIG. 4B, provided in a select motor 53, a pinion 54 provided in the select motor 53, and select shafts 52a and 52b. The rack 55 may be configured to mesh with the pinion 54.

  The first and second shift actuators 31a and 31b are connected to the shift motors 40a and 40b and the shift motors 40a and 40b, and are screwed into the nut portions 38a and 38b of the shift cylinders 34a and 34b. It consists of ball screws 41a and 41b (FIG. 6) for reciprocating the bodies 34a and 34b in the shift direction.

  U-shaped interlock plates 42a and 42b are provided on the shafts of the ball screws 41a and 41b. The interlock plates 42a and 42b accommodate the distal ends of the engaging projections 37a and 37b of the shift cylinders 34a and 34b, and the rotation is restricted by the shift cylinders 34a and 34b. The interlock plates 42a and 42b are provided with interlock grooves 43a and 43b for guiding the shift cylinders 34a and 34b in the shift direction, and the first to fourth shift levers 24a and 25a between the engagement protrusions 37a and 37b. , 25b, 24b, and recessed grooves 44a, 44b for receiving rear ends (end portions in the direction opposite to the lever portions 26a, 27a, 27b, 26b). The operation of the shift levers 24a, 25a, 25b, 24b that are not selected by the engaging protrusions 37a, 37b is restricted by the concave grooves 44a, 44b.

  In the select actuator 30, the first and second urging means 32a and 32b are used to change the rotational positions of the shift cylinders 34a and 34b, while the engagement protrusions 37a and 37b are always provided in the upper second shift lever 25a and third. The position that engages with the rear end of the shift lever 25b, that is, the shift blocks B2 and B4 that engage with the lever portions 27a and 27b of the second shift lever 25a and the third shift lever 25b are held at the selected position, and are reciprocated. The position at which one of the engagement protrusions 37a and 37b engages with the rear end of the first shift lever 24a or the fourth shift lever 24b by driving the moving actuator 33, that is, the first shift lever 24a or the fourth shift lever 24b. The shift block B1 or B6 that engages with the lever portion 26a or 26b is held at the position for selection.

  When the upper second shift lever 25a, the third shift lever 25b or the lower first and fourth shift levers 24a, 24b are selected, the shift motors 40a, 40b of the first and second shift actuators 31a, 31b are When rotated in the forward direction or the reverse direction, the shift cylinders 34a, 34b are moved in the shift direction from the neutral position by the ball screws 41a, 41b, whereby the first to fourth shift levers 24a, 25a, 25b, 24b rotates around the shafts 28a and 28b, and shifts the shift blocks B1, В4, В2, and В6 in the shift direction via the lever portions 26a, 27a, 27b, and 26b, or puts gears in a predetermined stage, or Remove the gear from the stage to the neutral position.

  The automatic shift operation in the automatic shift device described above will be described with reference to FIG.

  First, as described above, the gear position is selected from the engine speed, the engine load, the output shaft speed (vehicle speed), and the like by the ECU based on the shift map stored in advance.

  FIG. 7 (a) shows the shift between the fourth speed-5th speed shift block В4 and the second speed-3rd speed indicated by the circles by the biasing means 32b, 32a of the select actuator 30 described in FIGS. FIG. 7B shows the position where the reciprocating actuator 33 of the select actuator 30 selects the Rev-1 shift block B1 or the 6th shift block B6. .

  Here, in the case of a straight shift for switching the gear stage from the second speed to the third speed, the shift cylinder 34b is driven by driving the second shift actuator 31b shown in FIG. 1, FIG. 4 (a), and FIG. Is shifted, and the third shift lever 25b with the lever portion 27b engaged with the shift block B2 is rotated, so that the shift block B2 moves from the 2nd speed position to the 3rd speed position to move the gear stage to the 2nd speed. To 3rd gear.

  Further, when switching from the 3rd speed to the 4th speed, the second shift actuator 31b moves the shift block B2 at the 3rd speed position to the neutral position N, and after the ECU confirms that the 3rd speed is released, the first shift actuator By rotating the second shift lever 25a at 31a, the shift block B4 is moved from the neutral position N to the fourth speed position, and the gear stage is switched to the fourth speed.

  In the switching from the third speed to the fourth speed, the biasing means 32a of the select actuator 30 always selects the shift block B4 with the second shift lever 25a, and the shift block B2 is moved to the neutral position N to release the gear. After being performed, the shift block B2 can be immediately moved to the fourth speed position by the first shift actuator 31a, and the key shift described in the conventional example becomes unnecessary.

  Further, when switching from the first speed to the second speed, even when the shift block B1 is selected by the reciprocating actuator 33 of the select actuator 30, the second speed shift block B2 is selected by the biasing means 32b. Therefore, it is only necessary to sequentially drive the first and second shift actuators 31a and 31b.

  Thus, the select actuator 30 that always selects the shift blocks B4 and B2 when not driven and selects the shift block B1 or the shift block B6 when driven, and the two independent first and second shift actuators 31a and 31b. Since the case of operating the select actuator 30 at the time of shifting is not required by performing the shift operation, the time required for the select operation can be omitted, and only the straight shift for driving the first and second shift actuators 31a and 31b is used. Can do.

  That is, in FIG. 7A, when switching from the 3rd speed to the 4th speed, the shift block В2 of the 2nd speed-3rd speed is moved from the 3rd speed to the neutral position N by the second shift actuator 31b, and the neutral position ( After confirming (gear removal), the first shift actuator 31a can switch the 4-speed-5-speed shift block B4 to the 4th speed. When switching from the 4th speed to the 5th speed, the shift block B4 may be straight shifted as it is.

  Next, when switching from the 5th speed to the 6th speed, the shift block B4 is returned from the 5th speed to the neutral position N by the first shift actuator 31a, and during that time, the reciprocating actuator 33 of the select actuator 30 shifts the shift block. B6 is selected as shown in FIG. 7B, and then the shift block B6 is moved from the neutral position N to the sixth speed by the second shift actuator 31b. Further, when switching from the first speed to the second speed, the first shift actuator 31a returns the shift block B1 from the first speed to the neutral position N, and then the second-speed to third-speed shift block B2 is moved to the second shift actuator. What is necessary is just to drive 31b and to switch to 2nd speed.

  In FIG. 7 (a), the gear stage change from the 5th speed to the 4th speed and the 3rd speed to the 2nd speed can be performed by straight shifting as it is, and the gear stage change from the 4th speed to the 3rd speed can also be performed using the shift actuators 31a and 31b. The gear stage change from the 2nd speed to the 1st speed may be performed sequentially. The shift block B1 is moved in advance by the select actuator 30 while the second shift actuator 31b shifts from the 2nd speed to the neutral position N. Since it can be selected, it is substantially a straight shift.

  As shown in FIG. 7B, the select actuator 30 is driven when selecting the Rev-1 speed shift block B1 and the 6th speed shift block B6, and switches the shift from the 1st speed or the Rev to the 6th speed. No, if the current gear is 1st gear, either change from 1st gear to reverse (Rev) or 1st gear to 2nd gear, and if 6th gear, just switch to 5th gear It does not take time to select.

  As described above, the present invention uses the conventional transmission, and the shift blocks B2 and 4 of the second to third shift blocks in which the alignment order of the conventional shift blocks is arranged from the low speed stage to the high speed stage. It is possible to automatically shift with a simple structure using an existing manual transmission simply by replacing the shift block B4 of 5th to 5th speed, and simply connecting the shift blocks B2, B4 and the shift forks F2, F4 with connecting members 21a, 21b. At the same time, an extra selection operation at the key shift can be eliminated. Further, by exchanging the 2-3 speed shift block B2 and the 4th-5th speed shift block B4, the select actuator 30 is urged by a biasing means 32a, 32b such as a spring and the like. The shift block B4 of the speed-5 speed can be held at the always selected position and driven when selecting the Rev-1 speed and the 6th speed, and the select actuator 30 can be simplified.

24a First shift lever 25a Second shift lever 25b Third shift lever 24b Fourth shift lever 30 Select actuator 31a First shift actuator 31b Second shift actuator B1, B4, B2, B6 Shift block

Claims (4)

Reverse, 1st speed, 2nd speed, 3rd speed, 4th speed and 5th speed gears are arranged opposite to each other, and a shift block with a shift block for shifting these gears is used. After that, in the vehicle transmission device for shifting automatically by shifting operation,
Shift blocks arranged in the order of reverse-1 speed, 4th speed-5th speed, 2nd speed-3rd speed in the select direction;
First to third shift levers engaging the aligned shift blocks;
A select actuator that selects one of the select positions of the first and third shift levers and the select position of the second shift lever ;
A first shift actuator that shifts the first or second shift lever selected by the select actuator;
A second shift actuator for shifting the third shift lever selected by the select actuator;
Equipped with a,
A parallel shift shaft is provided,
A first shift fork for switching between a reverse gear and a first gear is fixed to one shift shaft, and a reverse-first gear shift block is fixed.
The one shift shaft is provided with a second shift fork that switches between the second and third gear stages so as to be movable in the axial direction, and a second speed / third speed shift block is connected to the second shift fork,
The other shift shaft is provided with a third shift fork that switches between the 4th and 5th gear stages so as to be movable in the axial direction, and a 4th to 5th shift block is connected to the third shift fork. A vehicle transmission device. The first shift lever and the second shift lever are formed in an L shape, and are provided so as to be horizontally rotatable at an interval in the vertical direction. The first shift lever and the second shift lever are bent into an L shape. The lever portion engages with the shift block of reverse-1 speed and the shift block of 4th-5th speed, respectively, and the first shift lever and the second shift lever rotate to reverse 1st speed through the lever portion. transmission of a vehicle according to claim 1, wherein the shift block and shift block of the 4th speed -5-speed shifting movement. The third shift lever is formed in an L shape and is provided so as to be horizontally rotatable, is provided so as to face the first shift lever and the second shift lever, and is bent in an L shape of the third shift lever. was lever engages the shift block of the second speed-third speed, with rotation of the third shift lever, according to claim 2, wherein the moving shifting shift block of the second speed-third speed through the lever portion Vehicle transmission. The select actuator includes: a first shift cylinder that engages with either the rear end of the first or second shift lever; a second shift cylinder that engages with the rear end of the third shift lever ; The urging means for urging the shift cylinder and the second shift cylinder to always engage the rear ends of the second and third shift levers respectively, and the first shift cylinder as the urging means. 2. The transmission according to claim 1, further comprising a reciprocating actuator that performs a select operation so as to engage the rear end of the first shift lever .