JPH0248787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmission operating device. More specifically, the present invention relates to a transmission operating device that constitutes an operating system for remotely controlling gear transmissions of automobiles and the like.

[Prior Art] Traditionally, transmission operating devices for remote control have been
As shown in the figure, the operating lever 1 and the fork shaft actuating device 2 are located far away from the gear transmission.
The fork shaft 4 is connected by a push-pull cable 3, and the fork shaft 4 is operated by the tilting operation of the operating lever 1.

To explain this in more detail, the operating lever 1 is installed at a position inside the automobile body, and is pivotably supported by, for example, a ball bearing 5, so that it can be tilted and moved. Further, the movable range of the operating lever 1 is restricted by a stopper 6 fixed to the vehicle body side. On the other hand, as the fork shaft actuating device 2, for example, a device consisting of arms 22, 23 fixed in opposite directions to both ends of a pivot 21 and a shift fork 24 vertically disposed at the tip of the arm 23 is used. After being assembled as an assembly, it is attached to an automobile body, and the shift fork 24 is coupled to the fork shaft 4 in the gear transmission. Furthermore, after the outer casing 31 of the push-pull cable 3 is fixed to a predetermined attachment point on the automobile body, the inner cable 32 is connected to the lower end of the operating lever 1 and the tip of the arm 22 using a connecting fitting. Attached by.

When the transmission operating device is assembled in this manner, by manually tilting the operating lever 1, the shift fork 24 swings, and the fork shaft 4 slides between the shift position, the neutral position, and the shift position. An operating system is constructed.

[Problems to be Solved by the Invention] However, in order for the transmission operating device as described above to be put into practical use, it is necessary to ensure that the fork shaft 4 is tilted within the range regulated by the stopper 6 when the operating lever 1 is tilted within the range regulated by the stopper 6. It must be possible to slide it into the shift position.

However, in the conventional transmission operating device as shown in Fig. 4, the aforementioned individual parts constituting the operating system are individually attached to the automobile body and assembled. Subsequent centering adjustment of the entire operating system is essential.

The centering adjustment is often performed by the push-pull cable that is attached last in the assembly order. For example, the turnbuckle 8 is attached to the inner cable 32 connected to the operating lever 1 side,
A method is used in which the length of the inner cable 32 is adjusted using the turnbuckle 8.

However, such adjustment on the push-pull cable side is difficult in terms of the adjustment margin, and above all, it is extremely inefficient to have to adjust the centering of each car one by one. There is a problem that sexuality is greatly impaired.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a transmission operating device having a structure in which assembly and centering adjustment can be performed simultaneously through normal assembly work without requiring complicated adjustment man-hours.

[Means for Solving the Problems] The transmission operating device of the present invention is a transmission in which a tilting operation of a control lever is transmitted to a fork shaft actuating device via a push-pull cable to operate a fork shaft. The operating device includes a restraining means for temporarily restraining the operating lever in the neutral position and a dedenting means capable of restraining the fork shaft in the neutral position, and further comprises an input side member of the fork shaft actuating device. and the output side member are configured to be coupled by a coupling mechanism whose coupling position can be adjusted.

[Function] When using the transmission operating device of the present invention, the basic components such as the operating lever, fork shaft actuating device, push-pull cable, etc. are installed at predetermined mounting positions on the automobile body, and then connected to each other. The operating lever is temporarily restrained at the neutral position by the restraining means, and the fork shaft is restrained at the neutral position by the dedenting means.

In this state, the end positions of the input side member and output side member of the fork shaft actuating device are subject to installation errors (including installation position errors, component size errors, etc.) from the operating lever to the input side member. Although installation errors occur from the fork shaft to the output member, the installation errors are absorbed by adjusting the relative connection position by the connection mechanism.

When the coupling mechanism is connected in this manner, the fork shaft operating device is assembled, and the transmission operating device is completed with the input side and the output side centered at the neutral position.

[Example] An example of the transmission operating device of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of the configuration of an embodiment of the transmission operating device of the present invention, FIGS. 2a to 2c are explanatory diagrams of the operating state of the triggering means 7, and FIG. FIG.

In FIG. 1, reference numeral 1 denotes an operating lever, and the operating lever 1 is tiltably supported by a ball bearing 5 at a location far away from the gear transmission within the vehicle body. The range in which the operating lever 1 can be tilted is regulated by a stopper 6 fixed to the vehicle body.

Further, this operating lever 1 is provided with a restraining means 9 for temporarily restraining the operating lever 1 in a neutral position. As the restraining means 9, for example, a structure in which a removable insertion pin can be manually inserted into insertion holes provided on the lever shaft and the vehicle body side is used.
The present invention is not limited to this, and any configuration may be used as long as the operating lever 1 can be restrained and released from the neutral position with a simple operation. Reference numeral 2 denotes a fork shaft actuating device, which is composed of a pivot 21, arms 22, 23, and a shift fork 24. The pivot shaft 21 is rotatably supported by a bearing 25 fixed to the vehicle body. The arm 23 is connected to the pivot 2
1, and a shift fork 24 is vertically installed at the tip of the shift fork 24.
4 is engaged with a fork shaft 4 in the gear transmission. On the other hand, this fork shaft actuating device 2 is connected by a connecting mechanism 2a as described below. A taper serration 26 is formed at the upper end of the pivot shaft 21, and a threaded portion 2 is formed at the tip end of the taper serration 26.
7 is cut out. A hole 28 is formed at the base of the arm 22 to be press-fitted into the taper serration 26, and after the arm 22 is press-fitted to the pivot shaft 21 by freely selecting the mounting angle, the arm 22 is inserted into the threaded portion 27 with a nut. They are connected by screwing 29 together. The coupling mechanism 2a is characterized by a large degree of freedom in the mounting angle and the ability to freely adjust the relative coupling position, making it possible to perform centering adjustment, which will be described later, at the same time as assembly.

Reference numeral 3 denotes a push-pull cable, and the outer casing 31 is fixed to a position inside the automobile body, and the inner cable 32 connects the metal fittings at both ends to the lower end of the operating lever 1 and the arm 22 of the fork shaft actuating device 2. It can be connected and installed between.

The fork shaft 4 is built into the gear transmission, and is moved and slid by the shift fork 24 to shift a predetermined gear. Further, this fork shaft 4 is provided with a dedenting means 4a as described below.
41 is a steel ball, 42 is a spring that pushes out the steel ball 41, and the steel ball 41 is inserted into the annular groove 43 at the neutral position of the fork shaft 4, and at two shift positions of the fork shaft 4. annular grooves 44, 4
It consists of 5. This dedentation means 4a
Originally, it is meant to maintain the shift position of the gear transmission and give a sense of moderation to the shift operation, but it can also serve the function of restraining the fork shaft actuating device 2 connected to the fork shaft 4 to a neutral position. .

Next, the assembly work using the apparatus of this embodiment will be explained. The operating lever 1 to which the push-pull cable 3 is connected is restrained in a neutral position by the restraining means 9, and the path from the fork shaft 4 to the pivot 21 is held in the neutral position by the dedenting means 4a, and then the fork is fixed by the connecting mechanism 2a. Connect the shaft actuator 2. At this time, the arm 22 which is the input side member of the fork shaft actuating device 2 and the pivot shaft 21 which is the output side member are connected to the arm 22 from the operating lever 1.
2 and the mounting error from the fork shaft 4 to the pivot shaft 21 are accumulated, respectively.
This can be absorbed by choosing the mounting angle.
Therefore, in the device of this embodiment, the connection of the connecting mechanism 2a, which is performed at the end of the assembly process, also serves as the centering adjustment of the entire operating system, and thereby only the assembly process can be performed without requiring special adjustment man-hours. Thus, an adjusted manual gear shift operating device can be obtained.

Although one embodiment of the present invention has been described above, the following configuration can also be adopted as another embodiment of the present invention. For example, the coupling mechanism 2a was provided between the upper end of the pivot shaft 21 and the arm 22 in the above embodiment, but it is also provided between the lower end of the pivot shaft 21 and the arm 23, and between the arm 23 and the shift fork 24. It may be provided with the following configuration. In that case, the same effects as in the embodiment described above can be achieved.

It should be noted that the transmission operating device of the embodiment described above is provided with a resilient means 7 to generate a repulsive force in response to a shift operation. The triggering means 7 will be explained based on FIGS. 2a to 2c.

71 is a compression spring, and 72 is a washer, which are housed in two left and right spring chambers 73 formed on the sliding axis of the fork shaft 4. Further, the compression spring 71 is restricted from expanding in its free state by a projection 74 provided in the spring chamber 73, and is attached in a pre-compressed state. The resilient means 7 constructed as described above is brought into contact with the rods 46 protruding from both ends of the fork shaft 4, and generates a repulsive force against the shift operation. Further, the repulsive force is fed back to the operating lever 1 via the fork shaft 4, the fork shaft actuating device 2, and the push-pull cable 3. To explain such a feedback effect with reference to FIG. 3, in the process of tilting the operating lever 1 from the neutral position N in the shift direction, the triggering means 7 is initially ineffective, so the operating lever 1 is lightly operated. . However, when the fork shaft 4 is slid to the shift operation completion positions S ₁ and S ₂ , the rod 46 comes into contact with the resilient means 7 and its repulsive force f is transmitted to the operating lever 1 . Moreover, the repulsive force f
Since the compression spring 71 has been compressed in advance, the operator suddenly feels a strong reaction force, thereby strongly sensing that the shift operation has been completed. Normally, the shift operation ends there, but if the operating lever is still pushed down due to over-operation, the repulsive force f of the triggering means 7 increases rapidly, and a strong reaction force is applied to the operating lever 1, warning that the operating lever is over-operated. be done. Eventually, the operating lever 1 stops moving at positions L ₁ and L ₂ where it hits the stopper 6, but the over-operated amount that occurs up to that point is absorbed by the deflection of the compression spring 71 (see Figure 2c). ), the push-pull cable 3 and other operating systems are designed to avoid overload.

As described above, in the device of this embodiment, the operational feeling of the shift operation is fed back as a repulsive force to the hand holding the operating lever 1, thereby alerting the user to prevent over-operation, and also alerting the user to over-operation. Even so, a protection mechanism is also provided to prevent overload from being applied to the operating system by the resilient means 7 and to prevent buckling of the operating system, particularly the push-pull cable 3.

[Effects of the Invention] When using the transmission operating device of the present invention, the operating system from the operating lever on the input side to the fork shaft on the output side is centered using a coupling mechanism that allows adjustment of the relative coupling position. Since the parts can be connected together, centering can be performed at the same time as assembly, eliminating the need for subsequent centering adjustment.

Therefore, it can greatly contribute to increasing the mass production effect.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the configuration of an embodiment of the transmission operating device of the present invention, FIGS. 2a to 2c are explanatory diagrams of the operating state of the triggering means 7, and FIG. FIG. 4 is an explanatory diagram of a conventional transmission operating device. (Main symbols in the drawing) 1: Operation lever, 2: Fork shaft actuator, 3: Push-pull cable,
4: fork shaft, 4a: dedenting means, 6: stopper, 7: firing means, 9: restraining means.

Claims (1)

[Scope of Claims] 1. A transmission operating device that transmits the tilting motion of an operating lever to a fork shaft actuating device via a push-pull cable to operate the fork shaft, the operating device being configured to move the operating lever to a neutral position. comprising a restraining means for temporarily restraining and a dedenting means capable of restraining the fork shaft in a neutral position,
Furthermore, the transmission operating device is characterized in that the input side member and the output side member of the fork shaft actuating device are connected by a connection mechanism whose connection position can be adjusted. 2. The transmission operating device according to claim 1, wherein the coupling mechanism comprises a pivot having a tapered serration formed at an end thereof and an arm having a hole press-fitted into the tapered serration.