JPH0321779B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shift lever device for an automatic transmission, and more particularly to an improvement in a shift lever device having a structure that allows shifting in two-dimensional directions.

[Conventional technology]

2. Description of the Related Art A shift lever device in an automatic transmission for an automobile is usually capable of shifting in one direction, and is configured to move intermittently to each shift position using a detent mechanism. In this type of shift lever device, in order to provide not only gear shifting operation but also additional functions such as acceleration/deceleration functions and various operations required for the vehicle, the shift lever is moved in a direction that is perpendicular to the main operating direction necessary for gear shifting operation. A device that can be shifted in the direction of shifting has been proposed (Japanese Patent Publication No. 48-3966).

[Problem to be solved by the invention]

However, in conventional shift lever devices capable of shifting in two-dimensional directions, the shift lever and the auxiliary function operation switch lever are always directly connected, and even when the auxiliary function is not required, the shift lever does not follow the main operation. This resulted in a problem of poor operability and heavy operation.

The present invention focuses on the above-mentioned conventional problems, and provides a shift lever device for an automatic transmission that can be operated in two-dimensional directions, and has a structure that allows operation in either direction easily and reliably. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the shift lever device for an automatic transmission according to the present invention includes a main guide groove along the main operation direction of the shift lever that fits the detent ball in a detent locking plate attached to the shift lever; A sub-guide groove along a sub-operation direction perpendicular to the main operation direction is provided at a specific shift position of the main guide groove to enable two-dimensional shifting of the shift lever, and at a shift position corresponding to the sub-guide groove. The present invention is configured to include a switch lever that is connected to the detent locking plate only at the position and is capable of reciprocating in the auxiliary operation direction.

[Effect]

With the above configuration, the switch lever and the daytent locking plate are linked only at the position where the sub-operation is possible, so the switch lever does not interfere with the main operation, and it also has an auxiliary function. It also provides smooth and nimble operability.

〔Example〕

Embodiments of a shift lever device for an automatic transmission according to the present invention will be described in detail below with reference to the drawings.

1 to 3 are a longitudinal cross-sectional view, a plan view, and a cross-sectional view showing the shift lever device of the embodiment. As shown in the figure, in this shift lever device, a shift lever 14 is passed through a casing formed by a base plate 10 and a top cover 12, and the lower end of the shift lever 14 is erected on the base plate 10 via a support 16. Brackets 18 are connected. The support 16 has two forks that are perpendicular to each other. One fork is connected to the bracket 18 via the main support pin 20, and the other fork is connected to the lower end of the shift lever 14 and the sub support pin 22.
are connected via. For this reason, both pins 20,
22 are orthogonally arranged so that the shift lever 14 can be selectively swung around each pin 20, 22. In this case, the direction in which the shift lever 14 swings around the main support pin 20 is the main operating direction of the automatic transmission, that is, reverse (R), neutral (N), drive (D), and hold as shown in FIG. Each position of (HOLD) matches the direction of operation. The direction in which the shift lever 14 swings about the auxiliary support pin 22 is orthogonal to the main operation direction, and this is used as the auxiliary operation direction to perform additional functions to be described later.

In order to determine each shift position in the main operation direction, a shift lever 1 is mounted on the base plate 10.
A pair of cam plates 24 are erected to sandwich the shift lever 14, and a cam pin 28 attached to the shift lever 14 is engaged with a cam hole 26 formed in the cam plates 24. The cam pin 28 can be engaged with and disengaged from the cam surface by operating a knob 32 provided on the handle 30 of the shift lever 14. In order to move the shift lever 14 intermittently to each shift position, a detent locking plate 34 is integrally attached to the shift lever 14, and a detent guide provided with a detent ball 36 is attached to the cam plate 24. A plate 38 is attached to constitute a day tent mechanism. A detent guide plate 38 is provided on each cam plate 24, and a detent ball 36 is attached to the guide plate 38 so as to be elastically biased against the lower surface of the detent locking plate 34. The guide plate 38 and the ball 36 are attached to fixed positions, but the detent locking plate 34, which moves together with the shift lever 14, has a detent locking plate 34 that is attached to the detent locking plate 34 so that the detent ball 36 contacts the detent ball 36, and the detent locking plate 34 is attached to the detent locking plate 34, which moves together with the shift lever 14. A main guide groove 40 for the ball 36 is formed.

That is, as shown in FIGS. 4 to 6, the daytent locking plate 34 has a shift lever mounting hole 42 in the center.
It is a planar rectangular plate material having a main support pin 20.
It is formed into a side arc with the center at the center. Guide grooves 40 along the main operating direction are formed on both sides of the lower surface, which is an arcuate surface, and these serve as rolling paths for the detent ball 36. The main guide groove 40 is provided at each shift position (R,
Triangular groove 44 (44
R, 44N, 44D, 44H) are formed, and when the ball 36 engages with each of these triangular grooves 44, intermittent operation can be obtained.

Here, the triangular groove 44H corresponding to the "HOLD" shift position in the main operation direction is formed wide as shown in FIG. 36 is structured to be able to roll and move, and the direction along the top ridgeline of this triangular groove 44H is a sub-guide groove. Therefore, when the detent ball 36 engages with the sub-guide groove (triangular groove) 44H, the shift lever 14 can swing about the sub-support pin 22.

Further, a sub-operation protrusion 46 is provided at the center of the rear end surface of the detent locking plate 34 on the side opposite to the side where the sub-guide groove 44H is formed. This protrusion 46 performs an incidental function provided in the shift lever device, and the detent ball 36 and the sub-guide groove 44H
At the auxiliary operation position, which is the engagement position with the switch lever 48, the switch lever 48 is connected to the switch lever 48, which performs an auxiliary function. The switch lever 48 is shown in FIGS.
As shown in Figures 9 to 9, it is formed in an L-shape, one piece of which is supported by a pin along the base plate 10, and is horizontally rotatable around the pin. And the other piece is base plate 10
There is a switch input section 50 that stands perpendicular to the switch input section 50, and furthermore, on the upper surface of the switch input section 50, there is a bifurcated section 52 into which the sub-operation protrusion 46 provided on the detent locking plate 34 can be inserted. A protruding piece 54 is provided. Also, switch lever 48
In order to maintain the switch in the neutral position at all times, the switch input section 5
A guide ball 60 is pressed into contact with a guide block 58 which has a V-shaped surface 56 on the inner surface of the lever 48 and is attached in an elastically biased state to a guide block 58 which supports a lever 48 with a pin. The guide ball 60 is the switch lever 4
When the switch lever 8 is in a position away from the neutral position, the interaction between the biasing force and the V-shaped surface 56 always generates an acting force that returns the switch lever 48 to the neutral direction, thereby maintaining the switch lever 48 in the neutral position. Therefore, when the shift lever 14 is primarily operated to shift to the hold position, the sub-operation protrusion 48 is inserted into the bifurcated portion 52 of the switch lever 48 and becomes connected, making it possible to sub-operate the shift lever 14 left and right. Only then can the switch lever 48 be swung. A limit switch 62 is provided corresponding to the swinging end of the switch lever 48 to perform, for example, speed increase, deceleration, or other incidental functions, and a switch input portion 50 is used to turn on/off the incidental functions. Can be done.

According to the shift lever device for an automatic transmission configured as described above, when the shift lever 14 shifts in the main operation direction and reaches the hold position, the sub-operation becomes possible, and the switch lever performs the sub-operation for the first time. 48 and the shift lever 14 are in a linked state. After the sub-operation is completed, the shift lever 14 and the switch lever 48 are not in a restrained state in the normal shift operation direction, so that the shift operation is performed extremely smoothly.

A small window 64 is provided at one corner of the top cover 12 of this shift lever device, and this small window 64 can be opened and closed by a slide cover 66. An inching switch 68 is attached inside the small window 64, and the switch 68 is exposed to the outside by sliding the cover 66. The inching switch 68 is connected to the accelerator system of the vehicle, for example, and allows the vehicle to be moved minutely without stepping on the accelerator pedal. This makes it possible to easily make slight movements such as when parking the vehicle.

〔Effect of the invention〕

As described above, according to the present invention, even when the shift lever device has a function different from the normal shift operation, the operation section for the incidental function is configured independently from the normal shift lever. This has the excellent effect of allowing each operation to be performed smoothly and easily.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the shift lever device of the embodiment;
Fig. 2 is a plan view of the same, Fig. 3 is a cross-sectional view of the same, Fig. 4 is a plan view of the daytent locking plate, Fig. 5 is a side view of the same, Fig. 6 is a bottom view of the same, Fig. 7 is a switch. A plan view of the lever, FIG. 8 is a front view thereof, and FIG. 9 is a side view thereof. 14...Shift lever, 24...Cam plate, 28...Cam pin, 32...Knob, 34...
Daytent locking plate, 36... Daytent ball,
40... Main guide groove, 44... Triangular groove, 44H...
Sub-guide groove (triangular groove), 46... Sub-operation protrusion, 48
...Switch lever, 62...Limit switch.

Claims (1)

[Claims] 1. A main guide groove along the main operation direction of the shift lever where the detent ball fits into the detent locking plate attached to the shift lever, and a sub-operation direction perpendicular to the main operation direction at a specific shift position of the main guide groove. A switch that is provided with a sub-guide groove to enable two-dimensional shifting of the shift lever, and that is linked with the detent locking plate only at a shift position corresponding to the sub-guide groove and capable of reciprocating in the sub-operation direction. A shift lever device for an automatic transmission characterized by being equipped with a lever.