KR20030050732A - Shift controlling system of manual transmission - Google Patents

Abstract

PURPOSE: An operating apparatus for shifting a gear for a manual transmission is provided to reduce cost, manufacturing and assembling processes by synchronizing shifting moderate feeling and double gearing of a synchronizer in shifting a gear. CONSTITUTION: A shifting rail assembly(60) includes a first to second shifting rail(62); a third to fourth shifting rail(66); a fifth to reverse shifting rail(72); a first plunger(80) and a second plunger(90). The first to second shifting rail shifts first and second gears selectively and has first, neutral and second grooves(62a,62b,62c) on an outer peripheral surface. The third to fourth shifting rail shifts third and fourth gears selectively and has third, neutral and fourth grooves(66a,66b66c) on an outer peripheral surface. The fifth to reverse shifting rail shifts fifth and reverse gears selectively and has fifth and reverse grooves(72a,72b) on an outer peripheral surface. The first plunger is included between grooves of the first to second shifting rail and the third to fourth shifting rail to form moderate feeling when one of the first-second shifting rail and the third to fourth shifting rail is shifted and to constrict movements of the first to second shifting rail and the third to fourth shifting rail when both are shifted. The second plunger is included between grooves of the third to fourth shifting rail and the fifth to reverse shifting rail to form moderate feeling when one of the third-fourth shifting rail and the fifth to reverse shifting rail is shifted and to constrict movements of the third to fourth shifting rail and the fifth to reverse shifting rail when both are shifted. Thereby, double gearing of a synchronizer is prevented.

Description

Shift controlling system of manual transmission

The present invention relates to a shift control mechanism for a manual transmission, and in particular, a structure that prevents double bite and at the same time forms a moderation feeling during shifting between a 1/2 shift rail, a 3/4 shift rail, and a 5 / R shift rail. A shift control mechanism for a manual transmission is provided.

In general, the shift operation mechanism for the manual transmission is a transmission in which the operating force according to the shift operation of the shift lever is transmitted to the control shaft assembly, and is mounted between the synchronous device of the manual transmission and the control shaft assembly to operate the synchronous device of the manual transmission. It is transferred to the rail assembly to allow shifting of the manual transmission.

As shown in FIG. 1, the control shaft assembly includes a control shaft 2 for linear reciprocating and rotational movement according to a driver's shift lever operation; It consists of a control finger (4) fitted to the control shaft (2), and an interlock plate (6) to prevent separation of the control finger (4) and to prevent double biting of the transmission rail assembly.

The shifting rail assembly includes a 1-2 speed shift rail 12 for selectively shifting the first and second gear shifts, a 3-4 speed shift rail 16 for selectively shifting the 3 and 4 shift gears, It consists of a five-stage reversing transmission rail 22 for selectively shifting the five-speed and reverse transmission gears.

A locking groove 5 into which the control finger 4 is fitted for the shifting operation on the 1-2 speed shift rail 12, the 3-4 speed shift lever 16, and the 5-speed reverse shift rail 22. ), A shift lug 13, 17, 23, a shift fork (not shown) for operating a synchronous device of a manual transmission, and a ball 26 and a spring ( 27) a poppet ball assembly consisting of a back light is installed.

However, the shift control mechanism of the conventional manual transmission is an interlock which prevents double biting of the 1-2 speed shift rail 12, the 3-4 speed shift lever 16, and the 5-speed reverse shift rail 22. The plate 6 and the poppet ball assembly for forming the moderation at shifting are made of separate mechanisms, thereby increasing the cost, increasing the number of parts, and increasing the number of machining and assembly processes.

The present invention has been made to solve the above-mentioned problems of the prior art, it is possible to simultaneously reduce the speed of shift during shifting and double biting of the synchronous device by a simple structure, the cost is low and the number of processing and assembly process can be reduced It is an object of the present invention to provide a shift control mechanism of a manual transmission.

1 is a perspective view of a shift control mechanism of a manual transmission according to the prior art,

Figure 2 is a perspective view showing the configuration of the main part of the manual transmission shift operating mechanism according to the present invention,

3 is a cross-sectional view showing the main part configuration of the shifting rail assembly according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: control shaft assembly 52: control shaft

54: control finger 60: shift rail assembly

62: 1-2 shift rail 66: 3-4 shift rail

72: 5-R step shift rail 80: first plunger

82: first case 84,86: first ball

88: first spring 90: second plunger

92: second case 94, 96: second ball

98: second spring

The shift control mechanism of the manual transmission according to the present invention for solving the above problems is a one-stage, two-stage shift gear and the one-stage, neutral, two-stage groove formed on the outer circumferential surface selectively shifting gears; ; A three- and four-speed transmission rails which selectively shift the three- and four-speed gears and have three, neutral and four-stage grooves formed on the outer circumferential surface thereof; A five-stage reversing shift rail, in which a five-stage, reverse shift gear is selectively shifted and a five-stage, reverse, R stage groove is formed on an outer circumferential surface thereof; When one of the 1-2 speed shift rail and the 3-4 speed shift rail is shifted, a moderation is formed on the shifted shift rail. When both the 1-2 speed shift rail and the 3-4 speed shift rail are shifted, A first plunger disposed between the groove of the 1-2 shift rail and the groove of the 3-4 shift rail to regulate the movement of the step shift rail and the 3-4 shift rail; When one of the 3-4 speed change rail and the 5-R speed change rail is shifted, a moderation is formed on the shifted shift rail, and when both the 3-4 speed change rail and the 5-R speed change rail are shifted, 3- And a second plunger disposed between the grooves of the 3-4 speed change rail and the grooves of the 5-R speed change rail so as to regulate the movement of the 4-speed change rail and the 5-R speed change rail.

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

Figure 2 is a perspective view showing the main configuration of the manual transmission shift control mechanism according to the present invention.

As shown in Figure 2, the shift operation mechanism of the manual transmission according to the present invention, after the operating force according to the shift operation of the shift lever (not shown) is transmitted to the control shaft assembly 50, the synchronous device of the manual transmission (not shown) C) and the transmission rail assembly 60 mounted between the control shaft assembly 50 and the control shaft assembly 50 to shift the manual transmission.

The control shaft assembly 50 includes a control shaft 52 for linear reciprocating and rotational movement according to the operator's manipulation of the shift lever; It is composed of a control finger 54 is fitted to the control shaft 52 is selectively fitted to the shifting rail (62, 66, 72) side of the shifting rail assembly 60.

Transmission lugs (63, 67, 73) are formed in each of the shifting rails (62, 66, 72) of the shifting rail assembly 60 is formed with a locking groove (55) into which the control finger 54 is fitted for shifting operation. A shift fork (not shown) for activating the synchronous device of the manual transmission is installed, and the shift operation force is transmitted through the shift lugs 63, 67 and 73 and transmitted to the synchronous device through the shift fork.

3 is a cross-sectional view showing the main part configuration of the shifting rail assembly according to the present invention.

The shift rail assembly 60 is to prevent the double bite of the manual transmission gear as well as to form a shift sense of the shift during the shift operation of the shift lever in addition to the synchronous device of the manual transmission, the first and second gears. Selectively shifting the one- and two-speed transmission rails 62 having one-stage, neutral, and two-stage grooves 62a, 62b, and 62c formed on the outer circumferential surface thereof; A three- and four-speed transmission rail 66 which selectively shifts the three- and four-speed gears and has three, neutral, and four-step grooves 66a, 66b, and 66c formed on the outer circumferential surface thereof; A five-stage reversing transmission rail 72 in which a five-stage, reverse shift gear is selectively shifted and a five-stage, reverse, R stage grooves 72a, 72b, 72c are formed on the outer circumferential surface thereof; When one of the 1-2 speed shift rail 62 and the 3-4 speed shift rail 66 is shifted, a moderation is formed on the shifted shift rail, and the 1-2 speed shift rail 62 and 3-4 are shifted. When both of the stage shift rails 66 are shifted, the grooves 62a and the grooves of the stage 1-2 shift rail 62 are regulated so as to restrict the movement of the stage 1-2 shift rail 62 and the stage 3-4 shift rail 66. A first plunger 80 disposed between the grooves 66a, 66b and 66c of the 62b and 62c and the 3-4 gear rails; When any one of the 3-4 speed shift rail 66 and the 5-R speed shift rail 72 is shifted, a moderation feeling is formed on the shifted shift rail, and the 3-4 speed shift rail 66 and 5- When the R stage shift rails 72 are shifted, the grooves 66a and 66b of the 3-4 stage shift rails are regulated so as to restrict the movement of the 3-4 stage shift rail 66 and the 5-R stage shift rail 72. 66c) and the second plunger 90 provided between the grooves 72a, 72b and 72c of the 5-R step shifting rail.

The first plunger 80 is mounted at a position between the grooves 62a, 62b, 62c of the 1-2 speed shift rail 62 and the grooves 66a, 66b, 66c of the 3-4 speed shift rail 66. A first case 82 having open ends at both ends, first left and right balls 84 and 86 disposed at both ends of the first case 82, and first and second left and right balls 84 and 86; It is composed of a first spring 88 disposed between the first to provide an elastic force to the first left, right balls (84, 86), and is fixed to a transmission case (not shown), the 1-2 speed rail 62 And the insertion hole 103 formed in the first support member 102 disposed between the 3-4 step shift rail 66.

Here, the first left and right balls 84 and 86 are grooves 62a, 62b and 62c of the 1-2 speed shift rail 62 and the 3-4 speed shift rail 66 by springs 88. The grooves 66a, 66b, and 66c of the grooves so as to form a sense of theft on the shifting rails 62 and 66 during shifting, and the first spring 88 has the first left and right balls 84 and 86. While not compressing, only one of the first left and right balls 84 and 86 is compressed so that the 1-2-speed shift rail 62 and the 3-4-speed shift rail 66 are operated at the same time. Prevent.

The second plunger 90 is mounted at a position between the grooves 62a, 62b, 62c of the 3-4 speed change rail 66 and the grooves 72a, 72b, 72c of the 5-R speed change rail 72. The second case 92 having open ends, the second balls 94 and 96 disposed at both ends of the second case 92, and the second balls 94 and 96, respectively. It consists of a second spring 98 to provide elastic force to the left and right balls (94, 96), and is fixed to a transmission case (not shown), the 3-4 gear shift rail 66 and the 5-R gear shift It is operated in the insertion hole 105 formed in the second support member 104 disposed between the rails (72).

Here, the second left and right balls (94, 96) is a groove (66a, 66b, 66c) of the three to four-speed shift rail 66 and the 5-R step shift rail (72) by the spring 98 In close contact with one of the grooves 72a, 72b, and 72c, so as to form a moderation feeling on the shifting rails 66 and 72 during shifting, and the second spring 98 is the second left and right balls 94 and 96. While not compressing all, only one of the second left and right balls (94, 96) is compressed so that the 3-4 step shift rail (66) and the 5-R step shift rail (62) operate simultaneously. Prevent.

Looking at the operation of the present invention configured as described above are as follows.

First, when the driver operates the shift lever in one step for operating the shift stage of the manual transmission, the control finger 54 fitted to the control clutch 52 is a shift lug of the 1-2 shift rail 62. It is fitted in the (63) to move the 1-2-speed transmission rail 62 in the longitudinal direction in the transmission case.

At this time, the first left ball 84 of the first plunger 80 is moved to the first stage groove 62a while being in contact with the surface of the 1-2-speed shift rail 62 to determine the first gear shift position. The theft is transmitted to the 1st and 2nd speed rails, the control shaft and the shift lever in order.

Then, when the driver shifts the shift lever to one of two, three, four, five and R stages in order to operate the shift stage of the manual transmission, the springs 88 and 98 are applied to the springs 88 and 98 as in the case of the first gear shift. While the first left and right balls 84,86 or the second left and right balls 94 and 96, which are supported, determine the respective shift positions, the theft is transmitted to the control shaft 52 and the shift lever in turn.

In this case, when the control finger 54 is bitten on the shift lug 63 of the 1-2 shift rail 62 and the shift lug 67 of the 3-4 shift rail 66, the 1-2 is shifted. Although the single speed change rail 62 and the 3-4 speed change rail 66 are about to move at the same time, the neutral groove 62b and the 3-4 speed change rail 66 of the 1-2 speed change rail 62 are neutral. The groove 66b is caught by the first left ball 84 and the first right ball 86 supported by the first spring 88, and the movement thereof is restricted to prevent double biting of the synchronous device.

In addition, when the control finger 54 doublely bites the shift lug 67 of the 3-4 step shift rail 66 and the shift lug 73 of the 5-R step shift rail 72. The single speed change rail 66 and the 5-R speed change rail 72 are intended to be moved simultaneously, but the neutral groove 66b of the 3-4 speed change rail 66 and the neutral of the 5-R speed change rail 72 are used. The groove 62b is caught by the second left ball 94 and the second right ball 96 supported by the second spring 88 and the movement thereof is limited to prevent double biting of the synchronous device.

In the shift control mechanism of the manual transmission of the present invention configured as described above, the first left and right sides of the first plunger installed between the grooves of the 1-2 speed shift rail and the grooves of the 3-4 speed shift rail are supported by the first spring. When the gear is used to form a moderation while shifting the gears, and when the 1-2 gear rail and the 3-4 gear rail are to be moved at the same time, the grooves of the gear shift 1-2 and the gear gear 3-3 are A second plunger installed between the first left and right balls supported by the first spring can prevent double biting of the synchronous device, and is provided between the grooves of the 3-4 speed change rail and the groove of the 5-R speed change rail. When the gear is formed by the second left and right balls supported by the second spring, the theft is formed, and when the 3-4 step rail and the 5-R step rail move simultaneously, the 3-4 step rail The groove of the groove and the 5-R step shift rail are caught by the second left and right balls, respectively. It is possible to prevent the double bit of the synchronous device, there is an effect that the cost is low and the number of processing and assembly process can be reduced.

Claims (6)

A one- and two-speed gearbox which selectively shifts the first- and second-speed gears and has a first, neutral and two-stage groove formed on an outer circumferential surface thereof; A three- and four-speed transmission rails which selectively shift the three- and four-speed gears and have three, neutral and four-stage grooves formed on the outer circumferential surface thereof; A five-stage reversing shift rail, in which a five-stage, reverse shift gear is selectively shifted and a five-stage, reverse, R stage groove is formed on an outer circumferential surface thereof; When one of the 1-2 speed shift rail and the 3-4 speed shift rail is shifted, a moderation is formed on the shifted shift rail. When both the 1-2 speed shift rail and the 3-4 speed shift rail are shifted, A first plunger disposed between the groove of the 1-2 shift rail and the groove of the 3-4 shift rail to regulate the movement of the step shift rail and the 3-4 shift rail; When one of the 3-4 speed change rail and the 5-R speed change rail is shifted, a moderation is formed on the shifted shift rail, and when both the 3-4 speed change rail and the 5-R speed change rail are shifted, 3- A shift control mechanism of a manual transmission comprising a second plunger disposed between the groove of the 3-4 shift rail and the groove of the 5-R shift rail so as to regulate the movement of the four-speed shift rail and the five-speed shift rail. . The method of claim 1, The first plunger may include a first case mounted at a position between the grooves of the 1-2 shift rail and the grooves of the 3-4 shift rail, and having both ends opened, and a first ball disposed at both ends of the first case; And a first spring disposed between the first balls. The method of claim 2, Both ends of the first case is cocked so that the shift operation mechanism of the manual transmission, characterized in that to prevent the departure of the first ball. The method of claim 1, The second plunger may include a second case mounted at a position between the grooves of the 3-4 step shift rail and the groove of the 5-R step shift rail, and open at both ends, and a second ball disposed at both ends of the second case; Shifting mechanism of the manual transmission, characterized in that consisting of a second spring disposed between the second ball. The method of claim 4, wherein Both ends of the second case is cocked to shift the operation of the manual transmission, characterized in that to prevent the separation of the second ball. The method of claim 1, The shift control mechanism of the manual transmission A first support member into which the first plunger is inserted such that the first plunger is fixed at a position between the groove of the 1-2 speed shift rail and the groove of the 3-4 speed shift rail; And a second support member into which the second plunger is inserted such that the third plunger is fixed at a position between the groove of the 3-4 step shift rail and the groove of the 5-R step shift rail of the manual transmission. Shifting mechanism.