JPS62165066A - Operating unit for driving device - Google Patents

Abstract

PURPOSE:To prevent unnecessary shifting by providing an interlock means in between the operating system of a sub-transmission and the operating system of a transfer device. CONSTITUTION:A select lever 73 has two positions of a high gear range Hi and a low gear range Lo in the operating system of a sub-transmission 20, while the shifter rod 79 of a fork 78 which is engaged with the sleeve 63a of a transfer actuator 63, is connected to a diaphragm type actuator 80, in the operating system of a transfer device 60. At the time of normal traveling, a 4WD switch 83 is turned off and the actuator 80 moves the rod 79 backward. Thereby, the sleeve 63a is meshed with a rib side to effect 2WD. The select lever 73 is operated to a high gear. And, accompanying the operation of the transfer device 60, the rod 87 of an interlock means 85 is also moved backward, which enables shifting to 4WD, while forbidding the select lever 73 to be forwardly operated.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a J51 operating device for a vehicle drive system, and more specifically, a structure for independently operating an auxiliary transmission and a transfer device in a drive system that includes a main transmission, a BJ transmission, and a transfer device. It is related to.

[Conventional technology]

Regarding this type of drive device and its operating device, for example, there is a prior art disclosed in Japanese Patent Application Laid-Open No. 55-4292, in which a change lever operates only the main transmission, and a select lever operates the auxiliary transmission and transfer device. It has been shown that (Problems to be Solved by the Invention) By the way, in the configuration of the operating device of the prior art described above, the auxiliary transmission and the transfer device are operated simultaneously by operating a single operating lever, and the FF, 4WD, ,4WD
It is designed to switch to L, so it is easy to operate, but
There are disadvantages such as the structure becomes complicated and it cannot be applied to a vehicle without an N1 transmission. Therefore, it is conceivable to create a separate structure so that the sub-transmission and the transfer device can be operated independently. With such a separation structure, it is possible to switch the sub-transmission to a high-speed or low-speed range regardless of whether the transfer device is 2 or 4-wheel drive, but there is no need to switch the DI transmission to a low-speed range in the case of 2-wheel drive. It is desirable to avoid such switching conditions. Based on this, when the sub-transmission is operated in a low speed range, a method of forcibly operating the transfer device into four-wheel drive may be considered, but this would change the driving condition to one that is contrary to the driver's will. , may be undesirable. The present invention has been made in view of these points, and provides an operating device for a drive device that prohibits unnecessary operations in a configuration in which the operating systems for the auxiliary transmission and the transfer device are separate. is intended to provide.

[Means for Solving the Problems 1]-2 In order to achieve the objectives, the present invention provides an auxiliary transmission that switches between high speed and low speed ranges. In a drive system having a main transmission that obtains S2 number of gears and a transfer device that switches to 2.4-wheel drive, an operation device that independently operates the sub-transmission and the transfer device is operated to control the sub-transmission. An interlock means is provided between the operation system and the operation system of the transfer device, and when the transfer device is operated in two-wheel drive, the auxiliary transmission is operated in a low speed range, and the auxiliary transmission is The transfer device is configured to prohibit operation of the transfer device to two-wheel drive when the vehicle is operated in a low speed range. [Function] Based on the above configuration, when the sub-transmission and the transfer device are operated separately, the interlock means prevents the two-wheel drive from operating into the low speed range. In this way, by recognizing the inoperability, the driver can avoid it.

[
The driver is forced to use the button, and this allows the driver to always operate according to his/her wishes. [Embodiment 1] Hereinafter, one embodiment of the present invention will be specifically described based on the drawings. In FIG. 1, to explain the overall configuration of a vertical transaxle type drive device to which the present invention is applied, a mission case 1, a transfer case 2, and an extension booth 3 are joined in this order, and the mission case 1 is divided into left and right halves. It has a split structure with three chambers 4
It is divided into 6 to 6, with the clutch 7 in the front chamber 4 and the sub-transmission 20 and front differential equipment 30 in the middle chamber 5.
The main transmission 4 is located in the rear chamber 0 and part of the transfer case 2.
0 is provided ( ), and a transfer device 60 is provided in the transfer case 2 . To explain the drive system, a crankshaft 8 from the engine is connected to an input shaft 9 via a clutch 7, and this input shaft and main transmission 40 are connected to each other via a clutch 7.
A sub-transmission 20 is installed between the main drive shaft 10 of the main transmission 4 ( ).Furthermore, the front of the output shaft 11 of the main transmission 4 ( ) is connected to a front differential device 30 , and its output 44111
The rear part of the rear drive shaft 12 is connected to rear drives 11+12 inside the extension case 3 via a transfer device 60, and the rear drive shaft 12 is further connected to the rear wheel side. A1 shift (Iku 20 is human power @ 9 and high gear 11 is formed,
Main drive shaft 1 located coaxially with the input shaft 9
0, the counter gear A7 (not shown) meshes with both gears 21 and 22, and the high gear 2
1. A synchronizer 25 is provided between the low gear 22 and the main drive shaft 10. As shown in the figure, by engaging the synchronizer 25 with the high gear 21 side, a high-speed range is obtained in which the input @9 and the main drive shaft 10 are directly connected, and conversely, by engaging with the low gear 22 side, the synchronizer 25 is engaged with the gear A721. ．．
Counter gear J3 and gear 22, not shown. Obtain a low speed range that is decelerated by The main transmission 40 is a constant-mesh type overdrive with five forward speeds and one reverse speed. 1st gear A741 during .11
, 42, second continuous gear 43.44, third speed gear 45.
46, has a fourth continuous gear 47.48. Here, the driven side gears 42, 44 for the first speed d3 and the second transmission are rotatably fitted to the output shaft 11, and a synchronizer 49 is provided between these three. In the case of 4-unit use, drive-side gears 45 and 47 are rotatable on the main drive shaft 10, and a sink [1 device 50 jfi is provided between these three members. Further, for reversing, an idler gear (not shown) moves and meshes with the drive gear 51 of the main drive shaft 10 and the driven gear 52 on the sleeve side of the synchronizer 49. Additionally, the main drive'l
A synchronizer 57 is installed between the rotatable drive gear 55 and the main drive shaft 10, and has a fifth speed gear ratio of 755.56 between the output l1III111 and the rotatable drive gear 55. In this way, three sets of synchronizers 49, 50, 57 were selected.
R, engages with the gear shifting gear X7 side, or idler gear A7
By meshing the gears, power for changing gears of five forward speeds and one reverse speed is extracted to the output shaft 11. The front differential device 30 has a drive pinion 31 formed at the front end of the output shaft 11, this drive pinion 31 meshes with a crown gear 732, and a differential #lJ device 33 that is integrally provided at the center of the crown gear 32. is connected to the front wheel side. In the transfer device 60, a transfer drive gear 61 provided integrally with the output shaft 11 is a rear drive!
The driven gear A that rotatably fits into l'lli+2
162, and a meshing type transfer clutch 6 is provided between the driven gear 62 and the rear drive shaft 12.
3 is provided. Next, the sub-transmission 20. The operating systems of the main transmission 40 and transfer equipment F160 will be explained. First, in the operation system of the main transmission 40, the change lever 7
0 is an H-type gear shift pattern with 5 forward speeds and 1 reverse speed.
A shifter rod 71 from this change lever 70 extends inside the transfer case 2, and a shifter arm 72 at the tip
selectively engages each shifter rail. In the operating system of the sub-transmission 20, a select lever 73 has a high speed range H+ and a low speed range LO, and a cable 74 from this select lever 73 connects to one end of an operating lever 76 whose intermediate portion is supported by a shaft 75. Connect to. The other end of the operating lever 76 is connected to a fork 77 that engages with the sleeve 25a of the synchronizer 25, and the operating lever 7G is configured to change the direction and perform a switching operation. In the operation system of the transfer device 60, a shifter rod 79 of a fork 78 that engages with a sleeve 63a of the transfer clutch 63 is connected to a guyafram actuator 80. Further, a negative pressure passage 81 communicates with an actuator 80 via a solenoid valve 82, and a 4WD switch 83 is connected to the solenoid valve 82 so as to switch between two and four wheel drive. Thus, in an independently and separately installed operating system,
Interlock means 85 is provided between the operating system of sub-transmission 20 and the operating system of transfer device GO. This inter-1 cocking means 85 has an arm 8 on the side opposite to the actuator 80 of the rod 79 on the transfer device GO side.
6, and an end 87a of the rod 87 is engaged with a long hole 88 of the operating lever 76 on the side of the sub-transmission 20. The elongated hole 88 is formed in the direction in which one of the D1 transmission 20 and the transfer device 60 approaches, that is, l! ``!I speed range H or 4W [) position, the other side is allowed to be operated freely, and the other side is prohibited from operating at other times. The operation of the operating device will be explained with reference to FIGS. 2 (2) to C). First, during normal driving, the 4WD switch 83 is turned off and the solenoid valve 82 is switched to the atmospheric side, so that the actuator 80 is turned off. The rod 79 is moved backward. Therefore, the sleeve 6 is moved backward in the clutch 63 of the transfer device 60.
3a meshes only with the hub side and becomes the 2WD position. In addition, the select lever 73 is operated to the high-speed range Hi, and therefore, the cable causes the operating lever 76 to tilt backward and move the sleeve 25a of the auxiliary transmission 20 forward, meshing with the gear 21 side and establishing a direct connection state. Become. In this way, the state shown in FIG. 2 Q3) is reached, and at this time, the interlock means 8
The rod 87 of No. 5 is moved rearward, and its end 87a is engaged with the rear end of the elongated hole 8. Therefore, it is possible to move the rod 87 forward to switch the transfer device 60 to the 4WD position, but if you tilt the select lever 73 forward and try to operate the auxiliary transmission 20 to the low speed range LO, the rod 87 will move forward. 87 will regulate it and it will be prohibited. If J3 is forcibly operated into the low speed range LO, the rod 87 and subsequent parts will be moved forward by the operating lever 76, causing the transformer 7 to move forward.
Switch the gear device GO to the 4WD position. Next, when the 4WD switch 83 is turned on, the solenoid valve 82 introduces negative pressure to the actuator 80, and the rod 79 moves forward to release the sleeve 6 of the clutch 63.
3a is engaged with the gear A762 side to be in the 4WD position. At this time, the rod 87 of the interlock means 85 also moves forward together to release the restriction on the operating lever 7G, so the select lever 73 on the auxiliary transmission 20 side is moved to the high speed range l-1i1 as shown in FIG. 2(b). Alternatively, it becomes possible to perform low speed range LO operation as shown in FIG. 2(C). Here, in the case of 4WD-Lo as shown in FIG.
Even if you try to turn off 3 and switch to 2WD, it will be prohibited. Note that if the spring force of the actuator 80 is strong and the drive is forcibly switched to 2WD, the rod 87 will cause the operating lever 7 to
6 is tilted backwards and shifted to high speed range 1-1i. In this way, by operating the operating lever 7G and the 4WD switch 83, 2WD-1-1i, 4WD-N
i, switched to 4WD-LO, 2WD-L
Switching to O is prohibited. Although one embodiment of the present invention has been described above, the drive device is not limited to the above embodiment. Effects of the Invention As described above, according to the present invention, the operation systems of the +WJ transmission and the transfer 7 device are configured separately, and the 2WD-Lo, which is unnecessary for actual driving, is Since the driver cannot operate the vehicle, the driver will have to operate the vehicle to avoid it. Therefore, if you operate the auxiliary transmission to low speed range LO, it will become 4-wheel drive, or if you operate it to 2-wheel drive, it will change to high speed range L-1.
There will be no changes in driving conditions such as switching to . Since it is a mechanical interlock means, it is highly reliable.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the operating device of the present invention, and FIGS. 2(f), (b), and (c) are diagrams showing each operating state. 20...Sub-transmission, 40...Main transmission, 60...
Transfer device, 73...Select lever, 16.
... Operating lever, 79... Operating rod, 85... Interlock means, 87... Rod, 88... Long hole. Patent applicant: Fuji Heavy Industries Co., Ltd. Agent: Patent attorney: Shin Kobashi, Susumu Murai, patent attorney: Figure 2 Lo (C) 4WD

Claims (1)

[Scope of Claims] A drive device that has a sub-transmission that switches between high and low speed ranges, a main transmission that obtains a plurality of gears, and a transfer device that switches to two- and four-wheel drive, wherein the sub-transmission and the transfer device In the operation device that operates independently, an interlock means is provided between the operation system of the auxiliary transmission and the operation system of the transfer device, and when the transfer device is operated in two-wheel drive, the auxiliary transmission An operating device for a drive device that prohibits operating the vehicle in a low speed range, and prohibits operating a transfer device in two-wheel drive when the auxiliary transmission is operated in a low speed range.