KR100551081B1 - Apparatus for preventing reverse noise of manual transmission - Google Patents

Abstract

The reverse anti-resonance device of the manual transmission according to the present invention is provided with an operation pin capable of performing reverse anti-resonance function on a specific shift stage shift rail, and the forward-end control finger mounted on the control shaft has a selector for reverse shifting. (select) is provided with a select pushing means for limiting the rotation of the input shaft while pushing the operation pin to move the specific shift stage during the select operation, it is possible to reliably prevent the reverse ringing function in the reverse shift It works.

6-speed, forward-acting control finger, operating pin, shift rail, control shaft

Description

Apparatus for preventing reverse noise of manual transmission             

1 is a schematic diagram showing the arrangement of the shift gear and the synchro mechanism of a typical five-speed manual transmission;

2 is a view showing a shift lever operating path of a five-speed manual transmission;

3 is a view showing a shift lever operating path of a six-speed manual transmission;

4 is a perspective view of a main part of a conventional anti-resonance structure of a manual transmission is shown;

5 is a side view showing a forward control finger of a conventional manual transmission;

6 is a plan view of a conventional control finger,

Figure 7 is a side view showing a control finger of the reverse ringing device of the manual transmission according to the present invention,

8 is a plan view showing a finger portion of the control finger according to the present invention.

<Explanation of symbols for the main parts of the drawings>

21: control shaft 25: reverse control finger

28: 1/2 step shift rail 29: Operation pin

31: reverse lug 33: reverse lever

35: reverse idle gear 50: forward control finger

51; Shaft Attachment 53: Lug Part

55 groove

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual transmission, and more particularly, to an anti-retraction device of a manual transmission in which a reverse anti-reception function is started from a select operation for reverse shift.

In general, the manual transmission is installed between the clutch and the propulsion shaft to increase or decrease the rotational force of the engine according to the change in the driving state of the vehicle, and also has a reversing device for reversing the vehicle.

FIG. 1 is a schematic diagram illustrating a state of arrangement of a shift gear and a synchro mechanism of a general 5-speed manual transmission, in which an input shaft 10 and an output shaft 12 are arranged side by side, and the reverse shaft / four-speed / four-speed / Three-stage, two-stage / one-stage gear is disposed on the output shaft (12). In addition, a synchro mechanism 14 having a synchronous clutch action is provided between the shift gears.

Thus, the manual transmission configured as described above is operated through the shift lever operating path as shown in FIG.

In recent years, the manual transmission is shifted to a process different from the operation path shown in FIG.

That is, as shown in FIG. 3, since the sixth speed shift is positioned at the reverse shift position of the five speed manual transmission illustrated in FIG. 2, the reverse shift position moves to the first speed shift position. It has a structure that is

Looking at the structure of the reverse operation mechanism with reference to FIG. 4 in the six-speed manual transmission as described above, the lower portion of the knob of the shift lever is pulled, the selector shifts to the reverse shift position of FIG. 3 and then the reverse shift is performed. When the select movement is made in this way, the actuating pin 29 of the 1/2 shift rail 28 is pressed for the operation of the anti-resonant mechanism, and then the control shaft 21 is rotated while being shifted for the reverse shift. When the 1/2 stage shift rail 28 moves, the input shaft is stopped by operating the 1st stage synchro, so that grinding noise is not generated during the reverse shift.

Here, the actuating pin 29 is operated in the reverse shifting operation after the control shaft 21 for the reverse shift is pressed in the groove 23a of the forward control finger 23 as shown in FIG. Will be moved to the first stage side. Meanwhile, the half shift rail 28 is shifted at the same time as the reverse idle gear 35 operated by the reverse control finger 25, the reverse lug 31, and the reverse lever 33.

In Fig. 4, reference numeral 27 denotes a half shift lug fixed to the half shift rail.

However, in the reverse ringing prevention mechanism of the conventional manual transmission having the forward-advanced control finger structure as described above, the reverse lever 33, the reverse shift fork 33 and the 1 / 2-speed shift rail 28 are simultaneously used. Since the input shaft may not have enough time to stop when moving, the reverse ringing prevention function may not work properly during reverse shifting, which may cause a serious noise.

The present invention has been made in order to solve the above problems, it is configured to stop the rotational speed of the input shaft during the select operation for the reverse shift by forming an inclined diagnostic control finger portion coupled to the operation pin of the shift rail. Accordingly, an object of the present invention is to provide an anti-reverse device for a manual transmission, which enables the anti-resonance function to be performed more reliably during reverse shift.

The reverse anti-resonance device of the manual transmission according to the present invention for realizing the above object is provided with an operation pin capable of performing the reverse anti-reception function on a specific shift stage shift rail, and an advanced forward control finger mounted on the control shaft. It characterized in that the select push means for limiting the rotation of the input shaft while moving the specific shift stage by pushing the operating pin during the select (select) operation for the reverse shift is characterized in that it is provided.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 7 is a side view showing a control finger of the reverse ringing device of the manual transmission according to the present invention, Figure 8 is a plan view showing a finger portion of the control finger according to the present invention. For reference, in describing the exemplary embodiment of the present invention, other components except for the forward diagnosis control fingers illustrated in FIGS. 7 and 8 will be described with reference to FIG. 4.

In the reverse transmission prevention apparatus of the manual transmission according to the present invention, referring to Figure 4, the 1 / 2-stage shift rail 28 is provided with an operating pin 29 that can perform the reverse anti-reception function, the control shaft ( 21 is provided with a forward control finger and a reverse control finger (25).

In particular, the forward control finger 50 is a shaft mounting portion 51 mounted to the control shaft as shown in Figure 7, the lug portion 53 extending in the shift lug direction from the shaft mounting portion 51, It is formed in the end of the lug portion 53 is composed of a groove portion 55 which is coupled to the operating pin (29).

In this case, the 1/2 forward shift rail 28 is moved to limit the rotation of the input shaft by pushing the actuating pin 29 during the select operation for the reverse shift. And a select pushing means, wherein the select pushing means has a one-stage side of the 1 / 2-stage shift rail 28 when the forward control finger 50 is engaged with the actuating pin 29. The groove 55 is formed to be inclined so as to be pushed in the direction in which the synchro can be operated.

That is, the groove portion 55 is formed in a 'V' shape as shown in Figs. 7 and 8, and is inclined by a predetermined angle (θ) with respect to the select direction of the forward control finger 50.

Referring to the operation of the reverse ringing prevention device of the manual transmission according to the present invention configured as described above are as follows.

In FIG. 4, when the control shaft 21 is moved in the select direction for the reverse shift, the inclined groove 55 of the forward control finger 50 pushes the operation pin 29 to the first end side, where 1 / As the two-stage shift rail 28 moves, it starts to operate the first-side synchro to stop the input shaft, and then the 1 / 2-stage shift rail 28 when the control shaft 21 rotates while shifting for reverse shift. This is further moved to stop the input shaft more reliably.

Accordingly, the half shift shaft 28 moves faster than the reverse lever 33 in the reverse shift operation so that the input shaft can be stopped earlier than when the reverse shift is made, so that grinding noise (which may occur during reverse shift) It is possible to suppress the occurrence of grinding noise.

The reverse anti-resonance device of the manual transmission according to the present invention configured and operated as described above is configured to stop the input shaft while the shift rail is moved during the select operation for the reverse shift, so that the reverse anti-reverse function is performed at the reverse shift. There is an advantage that can be made more reliable.

Claims (4)

Certain shift stage shift rails are equipped with actuating pins to perform reverse anti-resonance, The forward-facing control finger mounted on the control shaft is provided with a select pushing means for limiting the rotation of the input shaft while pushing the operating pin to move the specific shift stage rail during the select operation for the reverse shift. Reverse anti-ring device of the manual transmission, characterized in that. The method of claim 1, And said specific shift stage shift rail is a 1/2 shift rail. The method according to claim 1 or 2, The forward diagnosis control finger is formed with a groove coupled to the actuation pin, And said select pushing means is formed such that the groove is inclined so as to push the shift rail of the specific shift stage when the forward control finger is coupled to the actuating pin. The method of claim 3, wherein The groove portion is formed in a 'V' shape, the reverse echo ring device of the manual transmission, characterized in that formed inclined with respect to the select direction of the forward control finger.

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