KR19990019397A - Select lever device of automatic transmission vehicle - Google Patents

Abstract

The present invention relates to a select lever device for an automatic transmission vehicle. The present invention is the base plate 10, the parking position (P), the reverse position (R), the neutral position (N), the running position (D), the second speed position (2), the low-speed position (L) The detent plate 20 is formed, and the hollow shaft 34 rotatably installed on the detent plate 20 is possible to move up and down inside the hollow shaft 34 and in a direction perpendicular to the axial direction A select lever device comprising a lifting rod (36) protruding to form a detent pin (36a) positioned on at least one select position, wherein the parking position (P) of the detent plate (20) is formed. Lock or release the lock to limit the movement of the detent pin 36a to the reverse position R at the same time, and at the same time the detent pin 36a from the neutral position N of the detent plate 20 to the traveling position D. ) From the parking position (P) to the reverse position (R) on one side to lock or release the lock to limit the movement A first catching jaw 152 is formed to limit the movement of the tent pin 36a, and the second catching jaw restricts the movement of the detent pin 36a from the neutral position N to the driving position D on the other side. The locking lever 150 in which the 154 is formed and the locking lever 150 are moved by the brake signal to separate the detent pin 36a from the first locking jaw 152 and the second locking jaw 154. Solenoid 160 to allow the, and the guide piece 26 in contact with both sides of the locking lever 150 to move the locking lever 150 to form a vertical plate 20.

Description

Select lever device of automatic transmission vehicle

The present invention relates to a motor vehicle, and more particularly, to a select lever device of an automatic transmission vehicle which prevents a safety accident in advance by preventing the select lever from being moved from a neutral position to a driving position due to a misoperation of a driver.

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, such as manual transmissions and automatic transmissions. The manual transmission is difficult to operate as the driver selects a gear ratio according to each driving condition, and thus requires a skilled driving technique. On the other hand, the automatic transmission device is suitable for the planetary gear assembly is properly controlled by the electronic control signal of the computer that receives the detection signal from the various sensors for detecting the driving speed and load state of the vehicle, and various valves that open and close according to the signal. It has the disadvantage that the structure is more complicated than the manual transmission, the output efficiency is low, and it is expensive, but it is easy to operate because it does not need to perform a separate operation for shifting while driving. The range of use is expanding rapidly. In addition to this, in recent years, a so-called continuously variable transmission has been developed to remove the shift stage so that there is no shift shock at the time of shifting.

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 the accelerator pedal and brake pedal are provided in the driver's seat, and the clutch pedal necessary for power control is not provided. . 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, a select lever device is provided for the automatic transmission vehicle.

The select lever device includes a select lever, and the select lever includes a lifting rod that moves along a plurality of select positions formed by a step. The lifting rod is lifted by a separate operating means, and the movement in the select position is prevented. Is done. The select position is mainly formed on the detent plate arranged vertically on the base plate.

The configuration of the select lever device will be described with reference to FIG. 1. According to this, the detent plate 20 is fixed to the base plate 10 installed in the vehicle body. The detent plate 20 includes a plurality of select positions ｛parking position (P), reverse position (R), neutral position (N), travel position (D), and second speed position (divided by predetermined steps on the surface). 2) The low speed position L 'is sequentially formed. The number of locking holes 22 corresponding to each of the select positions is formed on the detent plate 20 above the select position.

On the other hand, the select lever assembly 30 is rotatably supported relative to the detent plate 20 is provided. The select lever assembly 30 has a rotating shaft 32 rotatably coupled to the lower end of the detent plate 20, and a hollow shaft having a lower end fixed on the rotating shaft 32 and having a cutout 34a formed therein. 34) is provided. A knob (not shown) to be gripped by the driver is installed at the upper portion of the hollow shaft 34, and a lifting rod 36 elastically supported to have a force directed to the upper portion is always installed inside the hollow shaft 34. The lifting rod 36 is moved to the lower portion of the hollow shaft 34 by a button provided on the knob. In addition, a detent pin 36a which protrudes in the direction perpendicular to the axial direction and moves along the select position is fixed to the lower end of the lifting rod 36, and is positioned on at least one select position. In addition, the housing 40 is fixed on the hollow shaft 34, the locking ball 42 is supported on the spring so as to project toward the detent plate 20 at all times. The locking ball 42 is fixed to a position corresponding to the locking hole 22 and is formed to pass the locking ball 42 through the locking hole 22 when the hollow shaft 34 is rotated.

On the other hand, a locking lever 50 is installed on one side of the detent plate 20 to interfere with the detent pin 36a to limit the movement of the select lever in the parking position. Then, a solenoid 60 is provided which is operated by a specific signal (brake signal) to move the locking lever 50 to allow the detent pin 36a of the lifting rod 36 to disengage.

The operating state of the select lever device having such a configuration will be briefly described as follows. When the knob is pulled forward or backward, the select lever rotates about the rotation shaft 32. At this time, the lifting rod 36 moves smoothly between the neutral position (N) and the driving position (D) without any manipulation. 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 The tent pin 36a is caught by the step of each select position, and movement is restricted. Therefore, when such a movement is required, it is possible to move to the selected position only by pressing the button provided on the knob and moving the knob while the detent pin 36a of the lifting rod 36 is separated from the select position.

In particular, in the parking position (P), even when entering or exiting, it is necessary to press the button installed on the knob to move to another position. In this case, when the brake is not pressed, the deceleration of the lifting rod 36 The tent pin 36a is restricted in movement by the locking lever 50. Therefore, when moving from the parking position (P) to another position, it should be assumed that the solenoid 60 must release the detent pin 36a from the fixed state by moving the locking lever 50 by pressing the brake. This is a supplementary means installed to prevent a safety accident because there is a risk of sudden backward or sudden start of the vehicle when freely shifted from the parking position to another position.

However, since the select lever device of the conventional automatic transmission vehicle having the above configuration has the neutral position (N) and the traveling position (D) arranged in the same position, the select lever travels in the neutral position (N) due to misoperation. When moved to the position (D) there was a problem that an accident can occur by moving the vehicle.

That is, when the selector is moved by the driver or other passengers by operating the select lever in a state where the select lever is moved from the driving position (D) to the neutral position (N) when the signal is waited or stopped, the select lever is moved to the neutral position (N). The detent pin 36a is moved without any limitation to the driving position D located on the same position, and the vehicle may move forward to cause a crash accident.

Accordingly, the present invention has been made in view of the above problems, and its object is to prevent the select lever from being moved from the neutral position (N) to the driving position (D) due to a misoperation of the driver, thereby preventing a safety accident. The present invention provides a select lever device for an automatic transmission vehicle.

1 is a side view showing a conventional select lever device configuration;

2 is a side view showing the configuration of a select lever device according to the present invention;

3 and 4 is an enlarged side view showing the main portion showing the operating state of the select lever device according to the present invention.

* Explanation of symbols for main parts of the drawings

10: base plate 20: detent plate

26: guide piece 30: select lever assembly

34: hollow shaft 36: lifting rod

36a: Detent Pin 150: Locking Lever

152: first jaw jaw 154: second jaw jaw

160: solenoid

In order to achieve this object, the present invention provides a base plate, a parking position (P), a reverse position (R), a neutral position (N), a driving position (D), a second speed position (2), and a low speed position (L) on a surface. At least one of the detent plate and the hollow shaft which is rotatably installed on the detent plate, and can be elevated in the hollow shaft and protrude in a direction perpendicular to the axial direction. A select lever device comprising a lifting rod having a detent pin positioned on a select position of a detent pin, wherein the detent pin is moved from the parking position P of the detent plate to the reverse position R. Locking or unlocking to limit, at the same time locking / locking to limit, lock or unlock the movement of the detent pin from the neutral position (N) of the detent plate 20 to the driving position (D) It is a means.

Preferably, the locking / locking release means has a first catching jaw for restricting the movement of the detent pin from the parking position P to the reversing position R on one side, and running at the neutral position N on the other side. A locking lever having a second locking jaw for restricting movement of the detent pin to position D, and actuated by a brake signal to move the locking lever to move the detent pin from the first locking jaw and the second locking jaw. The solenoid to allow the separation of the guide plate and the detent plate to be in contact with both sides of the locking lever to move the locking lever vertically.

Hereinafter, a preferred embodiment of an automatic transmission vehicle select lever device according to the present invention will be described with reference to the accompanying drawings as follows. do.)

2 is a side view showing the configuration of a select lever device for an automatic transmission vehicle according to the present invention. According to this, the detent plate 20 is fixed to the base plate 10 installed in the vehicle body. The detent plate 20 includes a plurality of select positions ｛parking position (P), reverse position (R), neutral position (N), travel position (D), and second speed position (divided by predetermined steps on the surface). 2) The low-speed position L 'is sequentially formed, and the guide piece 26 is formed in the lower part of the select position so as to face each other at a predetermined interval. Further, the number of locking holes 22 corresponding to each of the select positions is formed on the detent plate 20 above the select position.

On the other hand, the select lever assembly 30 is rotatably supported relative to the detent plate 20 is provided. The select lever assembly 30 has a rotating shaft 32 rotatably coupled to the lower end of the detent plate 20, and a hollow shaft having a lower end fixed on the rotating shaft 32 and having a cutout 34a formed therein. 34) is provided. A knob (not shown) to be gripped by the driver is installed at the upper portion of the hollow shaft 34, and a lifting rod 36 elastically supported to have a force directed to the upper portion is always installed inside the hollow shaft 34. The lifting rod 36 is moved to the lower portion of the hollow shaft 34 by a button provided on the knob. In addition, a detent pin 36a which protrudes in the direction perpendicular to the axial direction and moves along the select position is fixed to the lower end of the lifting rod 36, and is positioned on at least one select position. In addition, the housing 40 is fixed on the hollow shaft 34, the locking ball 42 is supported on the spring so as to project toward the detent plate 20 at all times. The locking ball 42 is fixed to a position corresponding to the locking hole 22 and is formed to pass the locking ball 42 through the locking hole 22 when the hollow shaft 34 is rotated.

On the other hand, on one side of the base plate 10 is provided with a locking lever 150 to limit the movement of the select lever by interference with the detent pin 36a of the lifting rod 36. The locking lever 150 has a first catching jaw 152 formed at one side thereof, and a second catching jaw 154 formed at the other side thereof. The first locking jaw 152 restricts the movement of the detent pin 36a from the parking position P to the reverse position R and prevents the detent pin 36a from the reverse position R to the parking position P. The movement is shaped to allow. Similarly, the second catching jaw 154 restricts the movement of the detent pin 36a from the neutral position N to the driving position D, and detent pin (from the driving position D to the neutral position N). The movement of 36a) is of an acceptable shape. On the other hand, the solenoid 160 is provided on the detent plate 20. The solenoid 160 is operated according to a specific signal (brake signal) and locks the locking lever 150 to allow the detent pin 36a to be separated from the first catching jaw 152 and the second catching jaw 154. Move it. The locking lever 150 is installed to be positioned between the guide pieces 26 formed on the detent plate 20 and guided to the guide pieces 26 to rise or fall vertically. In addition, the guide piece 26 supports the locking lever 150.

The operating state of the present invention having such a configuration will be briefly described. First, when the knob is pulled forward or backward, the select lever rotates about the rotation shaft 32. At this time, the lifting rod 36 is able to move from the first speed position L of the select position to the second speed position 2 and the travel position D without jamming. And moving from the reverse position (R) to the neutral position (N) 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 driving position D to the second speed position 2 or the first speed position L or the reversing position R and the parking position P means that the detent pin 36a of the lifting rod 36 is moved. The movement is restricted by the step of each select position. Therefore, when such a movement is required, it is possible to move to the selected position only by pressing the button provided on the knob and moving the knob while the detent pin 36a of the lifting rod 36 is separated from the select position.

In particular, in the parking position (P), even when entering or leaving, it is necessary to press the button installed on the knob to move to another position, and the movement from the neutral position (N) to the driving position (D) is also restricted. Press to allow movement. 3 and 4, the detent pin 36a is located at the parking position P as the driver selects the parking position P. Referring to FIG. In this state, when the select lever is moved without applying the brake, the detent pin 36a of the lifting rod 36 is restricted by the first locking jaw 152 of the locking lever 150. Accordingly, when moving from the parking position (P) to another position, the solenoid 160 must move the locking lever 150 by depressing the brake to release the detent pin 36a from the fixed state. On the other hand, the movement from the reverse position (R) to the parking position (P) is because the detent pin (36a) is moved along the inclined surface of the first locking jaw (152) is a natural movement without a jam.

4 shows a state in which the driver selects the neutral position N, where the detent pin 36a is located at the neutral position N. As shown in FIG. In this state, if the select lever is moved to the driving position D without applying the brake, the detent pin 36a of the lifting rod 36 is moved by the second locking jaw 154 of the locking lever 150. Limited. Accordingly, when moving from the neutral position (N) to the driving position (D), the solenoid 160 moves the locking lever 150 by depressing the brake to move only when the detent pin 36a is released from the fixed state. On the other hand, the movement from the driving position (D) to the neutral position (N) is a detent pin (36a) is moved naturally without jamming because it is moved along the inclined surface of the second locking jaw (154).

As described above, the select lever device of the automatic transmission vehicle according to the present invention allows the movement of the movement from the neutral position (N) to the driving position (D) and the movement from the parking position (P) to the reverse position (R) only by the brake signal. By allowing it, it is possible to prevent the safety accident of the car due to the wrong operation of the driver.

Claims (3)

Selected positions of the parking plate (P), reverse position (R), neutral position (N), travel position (D), second speed position (2), and low speed position (L) sequentially on the base plate 10 It is composed of a detent plate 20 and a hollow shaft 34 rotatably installed on the detent plate 20, and can be elevated in the hollow shaft 34 and is perpendicular to the axial direction In the select lever device which comprises the lifting rod 36 which protrudes in the direction, and the detent pin 36a which is located in at least one select position is formed, Locking or unlocking to limit the movement of the detent pin 36a from the parking position P of the detent plate 20 to the reverse position R, and at the same time the neutral position (N) of the detent plate 20 And a locking / unlocking means for locking or releasing the locking to restrict the movement of the detent pin 36a from the driving position (D) to the driving position (D). According to claim 1, wherein the locking / unlocking means is formed on one side of the first locking jaw 152 to limit the movement of the detent pin (36a) from the parking position (P) to the reverse position (R) is formed On the side, the locking lever 150 is provided with a second locking jaw 154 that restricts the movement of the detent pin 36a from the neutral position N to the driving position D, and is operated by the brake signal. The solenoid 160 to allow the detent pin 36a to be separated from the first catching jaw 152 and the second catching jaw 154 by moving the 150 and the locking lever 150 vertically. A select lever device for an automatic transmission vehicle having vertical movement means for moving. 3. The select lever device of an automatic transmission vehicle according to claim 2, wherein said vertical movement means comprises guide pieces (26) formed on the detent plate (20) so as to contact both sides of said locking lever (150).