KR200156595Y1 - Select lever device of a car - Google Patents

Abstract

The present invention relates to a detachment prevention device of the select lever applied to an automatic transmission vehicle to select driving conditions such as forward or reverse and parking, and the select lever assembly 40 on the base plate 10 on which the sleeve 12 is fixed. In supporting the rotatably, the arc-shaped guide hole 22 is fixed to the base plate 10 by the sleeve 12, the select positions are formed at the upper end, and the extension portion 22a is formed at one side. A detent plate 20 having; A support plate 30 having a lower end fixed to the rotating shaft 32 rotatably coupled to the sleeve 12 to rotate back and forth with respect to the rotating shaft 32 and to which the select lever assembly 40 is connected to the upper end; One end is fixed to the support plate 30, the insertion into the guide hole 22 is allowed through the expansion portion 22a, and moves from the position along the guide hole 22 to the front and rear directions, and the select lever assembly 40 And a select lever departure prevention device of an automatic transmission vehicle, which comprises a detent pin 100 that restricts the rotation of each side at a predetermined position and restricts the movement in the lateral direction during the rotation.

Description

Select lever departure prevention device of automatic transmission vehicle

The present invention relates to a select lever departure prevention apparatus of an automatic transmission vehicle, and more particularly, to a select lever departure prevention apparatus for applying to an automatic transmission vehicle to select driving conditions such as high speed forward and low speed forward or reverse.

As is well known, an automobile uses an internal combustion engine that burns fuel in an engine and converts thermal energy generated therein into kinetic energy, and is used as a means of transporting and moving cargo.

Such automobiles include a transmission for appropriately controlling the driving force of the engine and transmitting it to the axle (drive wheel). Since the gearbox does not have sufficient maneuvering power during the initial driving of the engine, it reduces the rotational force of the engine during the initial driving to increase the driving torque, or converts or increases the reduction ratio when the speed is increased so that it can be properly operated according to the driving condition of the vehicle. do. Many types of such transmissions have been developed, for example, manual transmissions and automatic transmissions. The electronic manual transmission requires a skilled driving technique because it is difficult for the driver to select a gear ratio according to each driving condition. On the other hand, the latter automatic transmission is properly controlled by the planetary gear assembly by the electronic control signal of the computer receives the detection signal from the various sensors for detecting the vehicle's running speed and load conditions, and various valves that are opened and closed in accordance with the signal. It has the disadvantage of complicated structure, low output efficiency, and high price compared to manual transmission, but it is easy to operate because it does not need to perform separate operation for shifting while driving. Recently, the range of use is expanding rapidly. In addition to these, so-called stepless automatic transmission has recently been developed to remove the shift stage so that there is no shift shock at the time of shifting.

The present invention relates to the automatic transmission. The automatic transmission does not have a mechanical clutch device that transmits or blocks engine power to the transmission, and uses a torque converter using a fluid coupling. Therefore, only an accelerator pedal and a brake pedal are provided to the driver's seat. There is no clutch pedal required for enforcement. Therefore, only the operation of the accelerator pedal and the brake pedal can increase or decrease the driving speed of the vehicle. However, the automatic transmission also determines the driving direction of the vehicle, such as forward or reverse, and the determination of whether to transmit power such as neutral, driving, parking, etc. should be selected by the driver. Therefore, the automatic transmission vehicle is provided with a select lever for allowing the driver to perform the above operation, with reference to Figs. 1 and 2, the configuration of the conventional select lever will be described schematically. According to this, there is provided a detent plate 20 fixed to the other end of the base plate 10 fixed to the vehicle body and one end of the sleeve 12 fixed to the base plate 10. The detent plate 20 has a plurality of select positions ｛P (parking position), R (reverse position), N (neutral position), D (traveling position), and 2 (2) respectively divided by predetermined steps on the upper surface. Inner position) and L (low speed position) are sequentially formed. An arc-shaped guide hole 22 is formed on the detent plate 20 below the select position.

Meanwhile, a select lever assembly 40 rotatably supported by the sleeve 12 is provided. The select lever assembly 40 has a rotary shaft 32 rotatably coupled to the sleeve 12 with a pair of bushes 34 interposed therebetween as shown in detail in FIG. 2, and a lower end welded to the rotary shaft 32. It is fixed and supported by the support plate 30 which rotates about the rotation shaft 32. The other end of the rotary shaft 32 is rotated in accordance with the rotation of the rotary shaft and the select lever 50 to which the select control cable is connected to the lower end is fixed. The rotation shaft 32 is restricted from the sleeve 12 by the fixing nut 32a.

The select lever assembly 40 is provided with a hollow shaft 42 whose lower end is fixed to the upper portion of the support plate 30. A knob 46 is provided on the upper portion of the hollow shaft 42 to be gripped by the driver, and an elevating rod 44 having a force that is elastically supported by the spring 44a and protrudes downward at the inside of the hollow shaft 42. Is installed. The lower end of the elevating rod 44 moves along the upper surface of the detent plate 20 and is arranged to be positioned on at least one select position. The lower end of the knob 46 is provided with a select knob 48 that is fixed to the upper end of the elevating rod 44 penetrating the hollow shaft 42 to move the elevating rod 44 by moving upward.

One side of the support plate 30 is inserted into the guide hole 22 to guide the rotation of the lifting rod 44 and at the same time limiting the rotation angle such that the select lever assembly 40 rotates only within a specific range. The detent pin 36 is fixed.

On the other hand, one side of the base plate 10 is provided with a parking locking lever 60 to interfere with the locking pin 38 fixed to the support plate 30 to limit the separation of the lifting rod 44 in the parking position. A solenoid 62 is installed to operate by a specific signal (brake signal) to allow the parking lock lever 60 to rotate to allow the lifting rod 44 to be separated.

The operation state of the conventional select lever having such a configuration will be briefly described as follows. When the knob 46 is pulled forward or backward, the select lever assembly 40 rotates about the rotation shaft 32. At this time, the lifting rod 44 moves smoothly without any manipulation between the neutral position (N) and the driving position (D). Further, the movement from the first speed position L of the select position to the second speed position 2 and the neutral position N can also be moved without jamming. And the movement from the reverse position (R) to the driving position (D) is also not limited. However, movement in a specific direction and position is limited in order to prevent sudden driving state change during driving due to misoperation. That is, moving from the neutral position (N) or the traveling position (D) to the second speed position (2) or the first speed position (L) or the reverse position (R) and the parking position (P) is the lifting rod (44), respectively. The movement is restricted by the step of the select position of. Therefore, in the case where such movement is required, it is possible to move to the selected position only by pulling the select knob 48 and moving the knob 46 with the tip of the lifting rod 44 separated from the select position. .

In particular, in the parking position (P), it is possible to move to another position only by pulling the select knob 48 even when entering or leaving the vehicle. In this case, the lifting rod 44 is parked when the brake is not bright. Rotation is limited by the locking lever 60. Therefore, when moving from the parking position (P) to another position, it should be assumed that the solenoid 62 must release the fixed state of the lifting rod 44 by rotating the parking locking lever 60 by pressing the brake. This is a supplementary means installed to prevent safety accidents because there is a risk of sudden backward or sudden start of the vehicle when the vehicle is freely shifted from the parking position to another position.

However, the conventional select lever having such a configuration has a problem that the tip of the lifting rod is separated from the select position.

That is, the lifting rod 44 is supported by the rotation shaft 32 so as to correspond to the select position formed in a row on the upper surface of the detent plate 20. The operation of this elevating rod 44 is moved forward and backward by a relatively long hollow shaft and a knob provided at its upper end. In this case, the select assembly 40 receives a force acting in a direction away from or near to the driver. Specifically, since the selector assembly 40 is installed on the right side of the driver, the selector assembly 40 is moved away from the driver when the driver selects the front side while moving forward and at the same time based on the lateral direction (left and right directions). The component to be built is generated, and on the contrary, the component to be brought closer to the driver side is generated at the rear selection. Therefore, the tip of the elevating rod 44 moving along the select position having a relatively narrow width may be separated from the select position, and there is a fear that a serious operation error due to the separation occurs.

In addition, in the state where the lower end of the elevating rod is separated from the select position by the above phenomenon, the elevating rod 44 is lowered by the force of the spring 44a, so it is caught on the side of the detent plate 20 so that it is excessively home position. When it returns to, it has a problem that the deformation and damage of the lifting rod is accompanied.

The present invention has been made in view of the above-mentioned problems, and its object is to prevent the lifting lever from leaving the select position in advance and prevent the select lever departure prevention device of the automatic transmission vehicle capable of performing a stable select operation. In providing.

1 is a perspective view showing a conventional select lever configuration

Figure 2 is a longitudinal cross-sectional view showing a conventional select lever configuration

Figure 3 is a longitudinal sectional view showing the configuration of the select lever according to the present invention

Figure 4 is a side view showing the configuration of the select lever according to the present invention

♣ Explanation of symbols for main part of drawing ♣

10: base plate 12: sleeve

20: detent plate 22: guide hole

22a: extension part 30: support plate

32: rotating shaft 32a: fixing nut

34: bush 40: select lever assembly

42: hollow shaft 44: lifting rod

46: Knob 48: Select Knob

100: Detent Pin 110: Hanging Groove

An object of the present invention as described above, in rotatably supporting the select lever assembly on the base plate to which the sleeve is fixed, the select position (P, R, N, D, 2, fixed to the base plate by the sleeve) A detent plate having L-shaped guide holes formed therein and an arc-shaped guide hole having an extension formed on one side thereof; A support plate having a lower end fixed to a rotating shaft rotatably coupled to the sleeve and rotating forward and backward with respect to the rotating shaft, and wherein the select lever assembly is connected to the upper end; One end is fixed to the support plate, the insertion of the guide hole through the expansion portion is allowed to move forward and backward along the guide hole from the position, limiting the rotation of the select lever assembly at a predetermined position and at the same time both directions during the rotation It can be achieved by the select lever departure prevention device of the automatic transmission vehicle made of the detent pin to limit the movement to the.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the automatic release vehicle select lever departure prevention device according to the present invention is as follows. Explain.)

3 is a longitudinal sectional view showing a configuration of a select lever employing a select lever departure prevention device of an automatic transmission vehicle according to the present invention, and FIG. 4 is a view illustrating a relationship between a guide hole and a detent pin according to the present invention. The detent plate seen from the A direction is shown. According to the present invention, an extension part 22a having an inner diameter larger than a gap between the guide holes is formed at one side of the guide hole 22 of the detent plate 20. Expansion portion 22a is formed by extending one side of the guide hole to the outside more preferably, the position is formed at the first speed position (L) side.

According to the present invention, one end of the detent pin 100 is fixed to the support plate 30 and moves in the guide hole 22. The detent pin 100 has an outer diameter smaller than the extension part 22a and larger than the gap between the guide holes 22 so that the detent pin 100 can enter the guide hole 22 only through the extension part 22a. . Here, the lateral direction means a left and right direction orthogonal to the front and rear direction when the operation direction of the select lever assembly 40 is a front or rear direction or a select direction.

The detent pin 100 is immersed in a predetermined depth radially inward from the outer circumferential surface so as to accommodate both sides of the guide hole 22 to move in the front and rear direction along the guide hole has an outer diameter smaller than the interval of the guide hole 22 The locking groove 110 is formed. Therefore, since the detent pin 100 is allowed to move from the extension part 22a to the guide hole 22 by the locking groove 110, the support plate 30 can be rotated. Thereby, the selection direction of the select lever assembly 40 can be moved.

The detent pin 100 can be fixed by press-fitting the support plate 30, but it is preferable to perform welding or the like to maintain a firm fixed state.

Each of the outer circumferential edges of the locking groove 110 may be chamfered, so that the locking groove 110 may easily enter the guide hole 22 from the extension portion 22a.

The present invention having such a configuration inserts the rotating shaft 32 into the sleeve 12 while the detent pin 100 is fixed to the support plate 30, and at the same time, the detent pin 100 is extended to the extension part 22a. Insert through). When the rotation shaft 32 no longer enters, the locking groove 110 of the detent pin 100 is located at a point corresponding to the guide hole 22. At this time, the rotating shaft 32 is fixed by the fixing nut 32a to limit the movement in the axial direction. Therefore, as shown in the solid line in Figure 4, the detent pin 100 is allowed a predetermined distance in the axial flow by the external force, but severe movement is limited.

In this state, when the select lever assembly 40 moves in the front-back direction, that is, the select operation, the detent pin 100 is first moved to the first speed position L as shown by the virtual line in FIG. 4. At this time, since both sides of the guide hole 22 enter the locking groove 110, the lateral flow of the detent pin 100 is tightly limited. Therefore, the lifting rod 44 moving along the select position at the top of the detent plate 20 does not flow laterally. In addition, at the first select position L and another subsequent select position, that is, at the second position 2, the traveling position D, the neutral position N, the reverse position R and the parking position P, the locking groove Since the 110 continues to be interfered with by the guide hole 22, the lateral flow does not occur at any position of the select position.

As described above, the select lever departure preventing device of the automatic transmission vehicle according to the present invention forms an extension part on one side of the guide hole, and allows the detent pin to enter the guide hole only through the extension part and simultaneously guides the pin detent. It forms a locking groove that moves along the hole to limit the movement in the front and rear direction, and at the same time, the support plate for supporting the select lever assembly is restricted from flowing in both directions by interfering with the side walls of the detent plate. Thus, the tip of the elevating rod provided to the select lever assembly is limited in the deviation from the select position, thereby having a stable select operation.

Claims (2)

In rotatably supporting the select lever assembly 40 on the base plate 10 on which the sleeve 12 is fixed, An arc-shaped guide fixed to the base plate 10 by a sleeve 12 and having select positions P, R, N, D, 2, and L formed at an upper end thereof, and an extension 22a formed at one side thereof. A detent plate 20 having holes 22; A support plate 30 having a lower end fixed to the rotating shaft 32 rotatably coupled to the sleeve 12 to rotate back and forth with respect to the rotating shaft 32 and to which the select lever assembly 40 is connected to the upper end; One end is fixed to the support plate 30, the insertion into the guide hole 22 is allowed through the expansion portion 22a, and moves from the position along the guide hole 22 to the front and rear directions, and the select lever assembly 40 And a detent pin (100) of the automatic transmission vehicle, wherein the detent pin (100) restricts the rotation in each of the predetermined positions and at the same time, the movement in the lateral direction during the rotation. According to claim 1, wherein the outer diameter of the detent pin 100 is smaller than the extension portion 22a of the guide hole 22 and larger than the spacing of the guide hole 22, the position corresponding to the guide hole 22 There is formed a locking groove 110 to allow entry into the guide hole 22 during rotation to prevent the select lever departure of the automatic transmission vehicle, characterized in that the flow in the lateral direction is limited by both sides of the locking groove 110. .