KR19980068105U - Select lever device of automatic transmission vehicle - Google Patents

Abstract

The present invention relates to a select lever device of an automatic transmission vehicle, and more particularly, to an improvement of a select lever device having a locking means for fixedly positioning at any one select position of the select lever. The detent plate 10 on which positions are formed and a number of locking holes 12 corresponding to the select position are formed thereon, and the locking hole on the hollow shaft 24 which rotates with respect to the detent plate 10. In the configuration of the select lever device provided with a locking ball 32 is elastically coupled to any one of the selected (12) to maintain the fixed state of the select lever assembly, the communication for communicating the respective locking holes (12) Provided is a select lever device for an automatic transmission vehicle in which a ball 14 is formed. The present invention has an effect of smoothing the feeling of selection by smoothly moving the selector bee assembly by lowering the operating depth of the locking ball when the select lever assembly is moved.

Description

Select lever device of automatic transmission vehicle

The present invention relates to a select lever device of an automatic transmission vehicle, and more particularly, to an improvement of a select lever device having locking means for fixedly positioning at any one select position of the select lever.

As is well known, automobiles use 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 cargo and people.

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 that allows the driver to perform the above operation.

The select lever includes an elevating rod that moves along a plurality of select positions formed by a step, and the elevating rod is lifted by a separate operating means to move in the select position. The select position is mainly formed on the dent plate which is arranged vertically on the base plate.

For convenience of understanding, the configuration of a conventional select lever device will be described with reference to FIGS. 1 to 3. According to this, the detent plate 10 fixed to the vehicle body has a plurality of select positions ｛P (parking position), R (reverse position), N (neutral position), and D (driving) separated on the surface by predetermined steps. Position), 2 (second speed position), and L (low speed position)｝ are sequentially formed. The number of locking holes 12 corresponding to each of the select positions is formed on the detent plate 10 above the select position.

On the other hand, the select lever assembly 20 is rotatably supported relative to the detent plate 10 is provided. The select lever assembly 20 has a rotating shaft 22 rotatably coupled to the lower end of the detent plate 10, and a hollow shaft having a lower end fixed on the rotating shaft 22 and having a cutout 24a formed at the lower end thereof. 24 is provided. An upper part of the hollow shaft 24 is provided with a knob (not shown) to be gripped by the driver, and an elevating rod 26 elastically supported to have a force directed to the upper portion of the hollow shaft 24 at all times. The detent pin 26a which protrudes in the direction perpendicular to an axial direction and moves along a select position is fixed to the lower end of the lifting rod 26, and is located in at least one select position.

In addition, as shown in FIG. 3, the housing 30 is fixed on the hollow shaft 24, and the locking ball 32 is spring-tipped to protrude toward the detent plate 10 at all times. do. The locking ball 32 is fixed at a position corresponding to the locking hole 12 so that the locking ball 32 passes through the locking hole 12 when the hollow shaft 24 is rotated.

However, the conventional button type having the configuration as described above had a problem that the rotation of the select lever assembly is not smoothly performed due to the interference between the locking ball 32 and the locking hole.

That is, as shown in FIG. 2, since the portion in which the locking hole 12 is not formed is formed in a planar shape, as shown in FIG. 3, an entry depth of the locking hole 12 inserted into the locking hole 12 is shown. When H is the moving distance of the locking ball 32 is H, since the initial force applied to the select lever assembly 20 is required to be large, so that the movement of the select lever is not smooth.

The present invention has been made in view of the above problems, and its object is to provide a select lever device of an automatic transmission vehicle which can smoothly move the select lever assembly by minimizing interference between the locking ball and the locking hole. have.

1 is a side view showing the configuration of a conventional select lever device

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B of FIG.

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

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

♣ Explanation of symbols for the main parts of the drawing ♣

10: Detent Plate 12: Locking Hole

14: communication hole 20: select lever assembly

22: rotating shaft 24: hollow shaft

24a: incision 26: lifting rod

26a: detent pin 30: housing

32: rocking ball 34: spring

An object of the present invention as described above is a detent plate formed with a plurality of select positions on the surface and a number of locking holes corresponding to the select position on the upper surface, and the locking on the hollow shaft that rotates relative to the detent plate In constructing a select lever device provided with a locking ball that is elastically coupled to any one of the grooves to maintain a fixed state of the select lever assembly, it may be achieved by forming a communication hole for communicating the respective locking holes. .

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the automatic lever vehicle select lever device according to the present invention is as follows. (The same configuration as the conventional will be described with the same reference numerals.)

Figure 4 is a longitudinal cross-sectional view showing the configuration of the select lever device according to the present invention. According to the present invention, the detent plate 10 fixed to the vehicle body has a plurality of select positions ｛P (parking position), R (reverse position), N (neutral position), and D, which are each separated by a predetermined step on the surface. (Traveling position), 2 (second speed position), and L (low speed position) are sequentially formed. The number of locking holes 12 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 20 is rotatably supported relative to the detent plate 10 is provided. The select lever assembly 20 has a rotating shaft 22 rotatably coupled to the lower end of the detent plate 10, and a hollow shaft having a lower end fixed on the rotating shaft 22 and having a cutout 24a formed at the lower end thereof. 24 is provided. An upper part of the hollow shaft 24 is provided with a knob (not shown) to be gripped by the driver, and an elevating rod 26 elastically supported to have a force toward the upper portion of the hollow shaft 24 at all times. The detent pin 26a which protrudes in the direction perpendicular to an axial direction and moves along a select position is fixed to the lower end of the lifting rod 26, and is located in at least one select position.

In addition, as shown in FIG. 3, the housing 30 is fixed on the hollow shaft 24, and the locking ball 32 spring-loaded to protrude toward the detent plate 10 is always provided in the housing 30. Is provided. The locking ball 32 is fixed at a position corresponding to the locking hole 12 so that the locking ball 32 passes through the locking hole 12 when the hollow shaft 24 is rotated.

According to the present invention, a communication hole 14 for communicating the respective locking holes 12 is formed. The communication hole 14 is formed on a radius around the center of rotation of the hollow shaft 24.

The width of the communication hole 14 should be configured to be smaller than the inner diameter of the locking hole 12.

According to the present invention having the above configuration, when the locking ball 32 is caught in the locking hole 12, the entrance depth of the locking ball 32 becomes H, and in the case of being locked in the communication hole 14, the locking ball ( 32) the entry depth is h. Therefore, when the select lever assembly 20 moves, the operating depth of the locking ball 32 becomes H-h, so that it is separated from the locking hole 12 by operating a relatively small distance, and further, compression of the spring 34. Since the distance is also small, the movement of the select lever assembly 20 is made smoothly.

As described above, the select lever device of the automatic transmission vehicle according to the present invention communicates between the locking hole and the locking hole, thereby lowering the operating depth of the locking ball when the select lever assembly is moved, thereby smoothing the feeling of selection. It will have the effect.

Claims (2)

A detent plate 10 having a plurality of select positions formed on a surface thereof, and a number of locking holes 12 corresponding to the select positions formed thereon, and a hollow shaft 24 rotating about the detent plate 10. In constructing a select lever device provided with a locking ball 32 is elastically coupled to any one selected from the locking hole 12 to maintain a fixed state of the select lever assembly. A select lever device for an automatic transmission vehicle, characterized in that for forming a communication hole (14) for communicating the respective locking holes (12). 2. The select lever device of an automatic transmission vehicle according to claim 1, wherein a width of the communication hole (14) is smaller than an inner diameter of the locking hole (12).