JPH0138661Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a control lever device for an automatic transmission used in automobiles and the like.

(Prior Art) In this type of automatic transmission control lever device, a control knob with a circular section is generally used, and by rotating the control knob fitted to the upper end of the select lever, The structure allows the length of the compression rod to be adjusted appropriately.

However, in recent years, automatic transmissions are increasingly required to have an overdrive function, and control knobs have come to be equipped with a changeover switch for switching from normal gear shifting to overdrive.

For this reason, select levers with cross sections other than circular have come to be used in order to incorporate a harness connecting the control knob changeover switch and the automatic transmission into the select lever.

Conventionally, there is a control lever device for an automatic transmission using a select lever having a cross section other than circular, as shown in FIG. 4, for example. (For example, see pages 4-48 of the Toyota Crown Repair Book, Volume 1, published by Toyota Motor Corporation, August 1983).

In the figure, 1 is a vehicle body such as an automobile, 2 is a bracket fixed to the upper surface of the vehicle body 1, and 3 is a rotation shaft rotatably supported by the bracket 2. The lower end of a select lever 4 having a square cross section is fixed to the rotation shaft 3, and the upper end of the select lever 4 is inserted and fixed into a square hole 5a formed in the lower end of the control knob 5.

A button 6 is slidably provided in the upper part of the control knob 5, and is urged by a spring 7 via a piece 8 so that one end of the button 6 protrudes from the upper side surface of the control knob 5. The other end of the button 6 is brought into sliding contact with an inclined surface provided at the upper end of the compression rod head 9.

The compression rod head 9 has a square hole 5a formed at the lower end of the control knob 5 and a button 6.
A compression rod 10 is screwed onto the lower surface of the compression rod head 9 so that its length can be adjusted freely. The lower end of the compression rod 10 extends inside the select lever 4 to the position of a vertically elongated hole 4a provided in the lower right and left sides of the select lever 4.

A position plate 11 is arranged below the select lever 4 along the vertically elongated hole 4a, and the lower end of the position plate 11 is fixed to the bracket 2. Further, a hole 11a having a shape corresponding to the position of the automatic transmission is formed in the position plate 11, and a position pin 12 is inserted into the compression rod so as to pass through this hole 11a and the vertical hole 4a of the select lever 4. It is inserted through the lower end of 10. The lower end of the compression rod 10 is urged upward by a spring 13.

The control knob 5 is also provided with a changeover switch 14 for changing the automatic transmission from a normal speed change state to an overdrive state.
A harness 15 connecting the select lever 4 and the automatic transmission is guided through the lever 4 from the upper end of the select lever 4. The harness 15 is kept from coming into contact with the compression rod 10 by a separating wall 16 provided within the select lever.

In the conventional automatic transmission control lever device configured as described above, when the button 6 is pressed, the compression rod head 9 is pushed down in conjunction with this, and the lower end of the compression rod 10 is pressed down. The position pin 12 inserted into moves downward. As a result, the range in which the movement of the position pin 12 of the hole 11a provided in the position plate 11 is restricted is changed, and the movable range of the select lever 4 can be varied.

(Problem to be solved by the invention) However, in the conventional automatic transmission control lever device described above, the cross-sectional shape of the fitting part between the select lever and the control knob is not circular. There was no way to properly adjust the length of the compression rod, and the above adjustments were made by removing the control knob and rotating the compression rod head, which required a lot of effort.

In addition, in order to be able to rotate the control knob to make the above adjustments, the diameter of the hole that fits the control knob's select lever must be greater than or equal to the maximum outer diameter of the select lever. There was a problem that the aesthetic requirements were compromised.

(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems, and in the control lever device of the automatic transmission of the type described above, the upper end of the select lever is made cylindrical, A control knob is rotatably fitted into this cylindrical part, has a fitting part that can be connected to the lower end of this control knob, and is provided with a finisher that can be inserted below the cylindrical part of the select lever. This is a control lever device.

(Function) The control lever device of the automatic transmission of the present invention configured as described above has a circular cross-sectional shape at the fitting part between the select lever and the control knob, so that the length of the compression rod can be adjusted by rotating the control knob. It is possible to create a structure that appropriately adjusts the temperature. In addition, the finisher, which has a fitting part that can be connected to the lower end of the control knob, can be inserted below the cylindrical part of the select lever, so when adjusting the length of the compression rod, lower the finisher and remove the control knob. The work can be simplified by simply raising the finisher, and this finisher also eliminates the difference in level caused by the difference in cross-sectional shape between the upper cylindrical part of the select lever and its lower part. It has the ability to cover up.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a partially sectional front view of an embodiment of the present invention, in which the same parts as in FIG. 4 are designated by the same reference numerals.

In the present invention, a select lever 4 having a square cross section is used, and a cylindrical part 4b is formed at the upper end of the select lever 4, and a square cross section 4 is formed below the cylindrical part 4b of the select lever 4.
As shown in FIG. 2, a hole 4d is bored in the step between the cylindrical portion 4b and the rectangular cross-sectional portion 4c, so that the harness 15 can be inserted therethrough.

As shown in FIG. 3, the lower end of the control knob 5 is provided with a round hole 5b that fits into the cylindrical portion 4b of the select lever 4, and which engages with a hook 17a protruding from the upper end of the finisher 17. A groove 5c is provided for locking the finisher 17 to the lower end of the control knob 5, and the square cross section 4c of the select lever 4 can be slid into the finisher 17 without any play. A square hole 17b is formed in advance.

Furthermore, a groove 9a having an inclined surface in the same direction as the inclined surface that contacts the button 6 is provided on the side of the compression rod head 9 opposite to the side that contacts the button 6, and a groove 9a is provided at the tip of the top 8. A protrusion 8 having an inclined surface parallel to the inclined surface of the groove 9a and capable of sliding contact with this inclined surface.
Provide a.

Then, the rectangular cross section 4c of the select lever 4 is fitted into the square hole 17b of the finisher 17, and the cylindrical portion 4b of the select lever 4 is rotatably inserted into the round hole 5b of the control knob 5, and the compression rod is inserted. The protrusion 8a of the top 8 is fitted into the groove 9a of the dome head 9 so that the slopes thereof slide against each other.

By doing this, when the control knob 5 is rotated, the head 9 rotates because the protrusion 8a of the top 8 and the groove 9a of the compression rod head 9 are fitted, but the compression rod head 9 rotates. Rod 1
Since the compression rod 1 can be moved only in the vertical direction by the position pin 12 passing through the left and right vertical holes 4a of the select lever 4 and the lower end of the compression rod 10, the compression rod 1 can be moved only in the vertical direction.
The length of the engagement between the threaded portion at the upper end of the compression rod 9 and the compression rod head 9 changes, and the length of the compression rod changes.

After adjusting the length of the compression rod, the hook 17 of the finisher 17 is
A is fitted into the groove 5c at the lower end of the control knob 5, and the finisher 17 is joined to the lower end of the control knob 5, thereby forming a step between the cylindrical portion 4b and the rectangular section 4c of the select lever 4. A portion can be covered with the finisher 17.

(Effects of the Invention) Thus, the control lever device of the automatic transmission of the present invention can have a rectangular cross section except for the upper end of the select lever, for example, as in the above embodiment.
In addition, after adjusting the length of the compression rod by rotating the control knob, we used a finisher to cover up the stepped part of the select lever, so we provided a switch button on the control knob and automatically The harness connecting the transmission can be routed through the select lever, and the length of the compression rod can be adjusted without removing the control knob. It has the characteristics of not compromising the requirements.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of the control lever device of the automatic transmission of the present invention, and its X-arrow sectional view, Y-Y sectional view, and Z-Z sectional view;
3 is an operational view of the W section in FIG. 1, FIG. 4 is a partially sectional front view of a control lever device of a conventional automatic transmission, and a view in the direction of the A arrow. They are a BB sectional view and a CC sectional view. 1...Vehicle body, 2...Bracket, 3...Rotation shaft, 4...Select lever, 4a...Vertical hole, 4
b... Cylindrical part, 4c... Rectangular cross section, 4d...
Hole, 5...Control knob, 5a...Square hole, 5
b...Round hole, 5c...Groove, 6...Button, 7...
Return spring, 8...piece, 8a...protrusion, 9...compression rod head, 9a...
...Groove, 10...Compression rod, 11...
...Position plate, 11a...hole, 12...
Position pin, 13... Spring, 14...
Switching button, 15...Harness, 16...Isolation wall, 17...Finisher, 17a...Hook, 17b...Square hole.

Claims (1)

[Scope of utility model registration request] In a control lever device for an automatic transmission, the upper end of the select lever is provided with a control knob, and the movable range of the select lever is changed by pressing a button provided on the control knob. A control knob is rotatably fitted into the cylindrical part, and has a fitting part connectable to the lower end of the control knob, and a finisher which can be inserted below the cylindrical part of the select lever. A control lever device for an automatic transmission featuring: