JPS6121686Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an operating device for an automatic transmission.

Figures 1 and 2 show an example of an automatic transmission operating device known from Utility Model Application No. 54-134433, etc., where 1 is the base part, 2 is the position regulating groove 3
A position plate 4 fixed on the base part 1 connects the position plate 2 and the base part 1 through a shaft 6 inserted through the boss part 5.
A control lever 8 rotatably supported by a bracket arm 7 fixed above is attached to the lower side of the control lever 4, and is controlled by a position pin placed in contact with the edge of the position regulation groove 3 of the position plate 2. The position pin 8 is adapted to be moved downward within the range in which the elongated hole 4a of the control lever 4 is formed by pressing a button 10 provided on a knob 9 at the upper end of the control lever 4. That is,
This automatic transmission operates the control lever 4 by pressing the button 10 and moving the position pin 8 downward when selecting between the N position (neutral) and the R position (reverse) or the P position (parking). The selection operation between the N position, D position (drive), 2nd position (second), and 1st position (low) is performed using button 10.
This makes it possible to select the control lever 4 without pressing the button. When selecting the forward gear without pressing the button 10, in order to make the selection operation of the control lever 4 appropriate, especially between the D position and the 2nd position, the position regulating groove 3 is provided with an oblique shape as shown in the second figure. A stepped portion 3a is formed, and when the position 8 moves over the stepped portion 3a, a sense of moderation is given to the control lever operation, so that it can be judged whether or not the D position or the 2 position has been appropriately selected. There is.

In addition, as shown in FIGS. 3 to 5, there is no step between the D position and the second position of the position regulating groove 3, and there is a moderation between the boss part 5 of the control lever 4 and the bracket arm 7. Some formed mechanisms. That is, in this moderation mechanism, the easy select bracket 11 is integrally molded on the bracket arm 7, and the easy select bracket 11 is formed with a stepped portion 12 on the inner edge at a portion corresponding to the D position and the 2nd position of the control lever 4. A check ball mechanism 16 is provided in which a ball holder 13 is formed and a steel ball 14 is elastically loaded with a spring 15, and when the steel ball 14 passes over the step 12 of the easy select bracket 11, the control lever It is designed to give a sense of moderation in operation. The above is the general structure of an automatic transmission operating device.

By the way, since conventional operating devices are generally made of metal such as iron plates, it is difficult to integrally mold the base portion 1, position plate 2, and bracket arm 7. For this reason, FIGS. As in the embodiment shown in Figures 5 to 5, the base portion 1, position plate 2, bracket arm, etc. were formed separately, and these parts were then assembled to manufacture the operating device. There were flaws.

(1) The number of parts increases.

(2) Poor workability.

(3) Therefore, the product cost will also increase.

As shown in FIG. 6 and subsequent drawings, the present invention not only solves the above-mentioned conventional drawbacks by integrally forming the base portion 1, position plate 2, and bracket arms 7, 17 from plastic, but also improves the structure. The above has also been improved.

FIG. 6 shows the main parts of the operating device according to the present invention. A pair of left and right bracket arms 7, 17 are provided on the base portion 1 facing each other, and a shaft 6 is attached to the bracket arms 7, 17. The operating lever 4 is pivotally supported through the lever so that it can be raised and lowered. Since the shaft 6 and the operating lever 4 are the same as those shown in FIG. 1 or 2, illustration thereof is omitted. As shown in FIG. 8, one of the brackets 17 is formed into a plate shape, and a position plate 2 for regulating the operating position of the operating lever 4 is attached to the upper part thereof with bolts and nuts 18. The other bracket arm 7 is formed into a hollow cup shape as shown in FIG. 7, and each bracket arm 7, 17 is integrally molded with the base portion 1 from synthetic resin.

The embodiment shown in the drawings is made by press molding glass fiber reinforced plastic (hereinafter referred to as FRP). FRP was used because it has better mechanical strength than ordinary plastic and is relatively easy to mold, but if it meets the strength required for the operating device, it is not necessarily the case that glass fiber reinforced plastic is used. There is no need to use ordinary plastic.

Furthermore, in the embodiment shown in the drawings, the position plate 2 is attached to the bracket arm 17 integrally molded on the base portion 1 with bolts, nuts 18, etc.; For this reason, when the bracket arm is molded, it goes without saying that the position plate 2 may be formed integrally with the bracket arm.

As explained above, the automatic transmission operating device of the present invention consists of a pair of left and right bracket arms 7, 17 that are erected on the base portion 1 to face each other.
Attach the shaft 6 to each bracket arm 7, 17.
The one bracket arm 17 is formed into a plate shape, and has a position plate 2 on its upper part that regulates the operating position of the operating lever 4. is attached, and the other bracket arm 7 is formed into a hollow cup shape, and each of the bracket arms 7, 17 is integrally molded with the base portion 1 from synthetic resin, so that the following effects can be obtained. play.

(a) Each bracket arm 7, 17 is connected to the base part 1.
Because it is integrally molded with synthetic resin,
Compared to the conventional structure in which a separate bracket arm is attached to the base part 1, it is possible to achieve a significant weight reduction, and at the same time, the number of parts and assembly man-hours can be reduced, and productivity can be improved. Significant cost reductions can be achieved.

(b) Of the pair of left and right bracket arms 7, 17 that are integrally installed facing each other on the base portion 1,
Since one bracket arm 17 is formed into a plate shape and the other bracket arm 7 is formed into a hollow cup shape, the section modulus of the base portion 1 can be greatly improved.
The strength and rigidity of the base portion 1 is higher than that of a case where the base portion 1 is simply made of synthetic resin, and deformation can be prevented.

(c) Since the other bracket arm 7 is formed into a hollow cup shape, the moderation mechanism of the operating lever 4 can be housed inside, and the appearance of the device can be simplified. The reference numeral 11 in FIG. 7 indicates that the moderation mechanism can be housed inside the bracket arm 7.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an example of a conventional automatic transmission operating device, Figure 2 is an explanatory diagram showing the relationship between the position regulating groove and position pin of the automatic transmission operating device, and Figure 3 is also FIG. 4 is an explanatory view showing the relationship between the position regulating groove and the position pin of the operating device of the automatic transmission, and FIG. 5 is a perspective view showing another example of the operating device of the conventional automatic transmission. Enlarged view of the moderation mechanism part of the transmission operating device, No. 6
7 is a sectional view taken along the line -- in FIG. 6, and FIG. 8 is a sectional view taken along the line -- in FIG. 6. 1...Base part, 2...Position plate,
7,17...Bracket arm.

Claims (1)

[Scope of utility model registration request] It is composed of a pair of left and right bracket arms 7, 17 that are erected facing each other on the base portion 1, and an operating lever 4 that is pivotally supported on each of the bracket arms 7, 17 via a shaft 6 so that it can be raised and lowered. , the one bracket arm 17 is formed into a plate shape, and a position plate 2 for regulating the operating position of the operating lever 4 is attached to the upper part thereof,
Further, the other bracket 7 is formed into a hollow cup shape, and each of the bracket arms 7, 1
Reference numeral 7 denotes an automatic transmission operating device, characterized in that it is integrally molded with the base portion 1 from synthetic resin.