JPH0142406B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote control device for a transmission in a vehicle, and more particularly to a remote control device that improves operability by smoothing the movement of a change lever in the select direction.

Conventionally, as shown in Fig. 1, an electric signal for gear shift operation is applied to an actuating device operated from the driver's seat to shift the gear of the engine transmission, which is located far from the driver's seat of the vehicle. In a transmission remote control device 31, a guide rod 35 has a change lever 34 fixed to a sliding hole 33a of a cantilevered bearing 33 protruding from one side of a casing 32 fixed to a vehicle body (not shown).
is inserted so as to be slidable and rotatable, and the rod is supported in a cantilevered manner, so there is a drawback that the movement of the change lever 34 in the selection direction is not smooth, and in particular, the stroke of the rod 35 in the selection direction is If an attempt was made to make it longer, the entire device would become longer, and the length of the engagement between the guide rod 35 and the bearing 33 would become shorter, resulting in a further deterioration in operability.

In addition, Japanese Patent Publication No. 54-5065 discloses a gear transmission mechanism, but the conventional example has a shaft integrated with a change lever that issues command signals for shift and select operations, but this shaft is rotated. This invention does not disclose at all the structure of a bearing that is movably supported, and therefore is a different invention from the present invention in its structure.

The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to remotely control the transmission of an engine by means of an electro-pneumatic or hydraulic actuation device. An object of the present invention is to improve the operability of a remote control device in which a change lever slides in a select direction and swings in a direction perpendicular to the select direction, that is, in a shift direction. To ensure that the guide rod to which the change lever is fixed is supported with an extremely long fitting length, so that the change lever can be operated smoothly in the selection direction at any position. It is in. Another object is to make the remote control device more compact by making the overall length of the remote control device shorter even though the stroke of the change lever in the select direction is longer.

In short, the present invention provides an electric signal for shifting an engine transmission disposed far from the driver's seat, which is operated at the driver's seat to provide an electric signal for shifting the engine transmission. A housing fixed to a portion thereof, a pair of hollow bearings fixed to opposing side walls of the housing in a concentric state facing each other and having a sliding hole formed in the center, and the pair of hollow bearings having a sliding hole formed in the center thereof. Both ends are restrained in the axial direction by bearings and are rotatably supported, a through hole with the same diameter as the sliding hole is formed in the center, a slit with a predetermined width is formed in the upper part in the axial direction, and a shifter is formed in the lower part. a guide cylinder having an extended actuator for operating a position detection switch; a guide rod slidably fitted into the guide cylinder and the hollow bearing; and a guide rod having one end fixed to the guide rod. The present invention is characterized by comprising a change lever formed with a fitting portion having two parallel surfaces that can be slidably fitted into the slit, and an actuator for operating a select position detection switch protruding from the side surface. It is something.

The present invention will be explained below based on embodiments shown in the drawings. 2 to 4, a transmission remote control device 1 according to the present invention is installed at a position far from a driver's seat (not shown), for example, for an engine (not shown) disposed at the rear of a vehicle. This device is designed to give an electrical signal for gear shifting to an electro-pneumatic or hydraulic actuating device (not shown) for shifting the transmission (not shown) of the vehicle, and is operated from the driver's seat. It's becoming like that.

The housing 2 is fixed to a part of the vehicle body (not shown), and has a rectangular shape as shown in the figure, for example, and has a so-called H-shaped groove 3 in its upper opening 2a.
A speed change guide plate 3 having a portion a is fixed thereto. Three select position detection switches 4 capable of detecting, for example, three select positions are arranged on the upper part of one side wall 2b, and the other side wall 2b
At the bottom of c, there are three shift position detection switches 5 that can detect, for example, three shift positions.
is installed.

A pair of hollow bearings 6, 6 are fixed to opposing side walls 2c, 2d of the casing 2 in a concentric manner facing each other, and sliding holes 6a, 6b are formed in the center, respectively. .

The guide cylinder 8 is rotatably supported with both ends 8a, 8a restrained in the axial direction by the enlarged holes 6b, 6b of the pair of hollow bearings 6, 6, and the hollow bearing 6 is provided in the center of the guide cylinder 8. A through hole 8b having the same diameter as the sliding hole 6a is formed. Further, a slit 8c having a predetermined width is formed in the upper part and is elongated in the axial direction, and an actuator 8d for operating the shift position detection switch 5 is integrally extended in the lower part.

The guide rod 9 is slidably fitted into the guide cylinder 8 and the hollow bearing 6.

The change lever 10 has a threaded portion 10a formed at one end fixed to the longitudinal center of the guide rod 9, and has a parallel threaded portion 10a that can be slidably fitted into a slit 8c of the guide cylinder 8. A fitting portion 10b having two surfaces S is formed, and the change lever 10, the guide rod 9, and the guide cylinder 8 are restrained from each other in the direction of rotation by the fitting portion 10b and the slit 8c. , configured to be slidable only in the axial direction. An actuator 10d for operating the select position detection switch 4 is protruded from a side surface 10c of the change lever 10.

The present invention is configured as described above, and its operation will be explained below. Change lever 10
is integral with a guide rod 9, and the guide rod 9 is supported with a very long fitting length across the guide cylinder 8 and the through hole 8b and sliding hole 6a of the pair of hollow bearings 6, 6, respectively. This fitting relationship does not change at all no matter what position the guide rod moves, so it always slides smoothly, and the change lever 10 can be operated smoothly in the selection direction. In this case, the fitting part 10 of the change lever 10
b slides smoothly within the slit 8c of the guide cylinder 8. When the actuator 10d reaches one of the positions of the select position detection switch 4, an electric signal is output from the switch, and the transmission actuator is activated to move the transmission select shaft to the specified position. let

Next, when the change lever 10 is operated to shift, the fitting portion 10b is inserted into the slit 8 of the guide cylinder 8.
c to rotate the guide cylinder, so the change lever 10 and the guide cylinder 8 rotate integrally, and when the actuator 8d reaches the position of one of the shift position detection switches 5, the switch is activated. An electrical signal is issued from the transmission unit, which activates the transmission actuator to move the transmission shift fork to the position where one of the gears is selected, completing the shift operation.

The present invention is constructed and operates as described above, and therefore provides a remote control device for remotely controlling the speed change of an engine transmission using an electro-pneumatic or hydraulic actuating device. , the change lever slides in the select direction,
Moreover, the operability of a remote control device having a structure that swings in a direction perpendicular to this direction, that is, in the shift direction, can be improved, and in particular, the guide rod to which the change lever is fixed is supported with an extremely long fitting length. Therefore, it is possible to obtain the effect that the change lever can be operated smoothly in any position at any time. Further, even if the stroke of the change lever in the select direction is made long, the overall length of the remote control device can be shortened, thereby achieving an effect of making it more compact.

[Brief explanation of drawings]

FIG. 1 is a schematic longitudinal sectional view of a transmission remote control device according to a conventional example, FIGS. 2 to 4 are related to an embodiment of the present invention, and FIG. FIG. 3 is a vertical sectional view taken along the - arrow direction in FIG. 2, and FIG. 4 is a plan view showing the mutual relationship between the speed change guide plate and the change lever. 1 is a transmission remote control device, 2 is a housing, 2c and 2d are opposing side walls, 4 is a select position detection switch, 5 is a shift position detection switch, 6 is a hollow bearing, 6a is a sliding hole, 8 is a guide cylinder, 8a is both ends, 8b is a through hole, 8c is a slit, 8d is an actuator for operating a shift position detection switch, 9 is a guide rod, 10 is a change lever,
10a is one end, 10b is a fitting part, 10c is a side surface,
10d is an actuator for operating the select position detection switch, and S is two parallel surfaces.

Claims (1)

[Claims] 1. An actuating device that is operated from the driver's seat to provide an electric signal for gear shifting to an engine transmission located far from the driver's seat, which is fixed to a part of the vehicle body. a housing, a pair of hollow bearings fixed concentrically to opposite side walls of the housing and having a sliding hole formed in the center; It is axially restrained and rotatably supported, a through hole with the same diameter as the sliding hole is formed in the center, a slit with a predetermined width is formed in the axial direction in the upper part, and a shift position detection switch is operated in the lower part. a guide cylinder having an extended operating element; a guide rod slidably fitted into the guide cylinder and the hollow bearing; one end fixed to the guide rod and slidable into the slit of the guide cylinder; A transmission characterized in that it is provided with a change lever formed with a fitting part having two parallel surfaces that can be freely fitted and an actuator for operating a select position detection switch protruding from the side surface. Remote control device.