JPS61131015A - Remote control device of transmission - Google Patents

Abstract

PURPOSE:To simplify a responsive mechanism, by providing an circular arc-like groove in the side face of a member which makes reciprocating motion when a change lever is operated for shifting and a plunger which is elastically pressed against the groove by air pressure from the direction normal to the groove. CONSTITUTION:When a change lever is shifted to the 2nd gear position at the selecting position of the 2nd and 3rd gears, a detecting body 2 is slid in the direction shown by the arrow A from a position N. Then the tip 5a of a plunger 5 is slid along a circular arc-like groove 3, but, since the moving quantity of the plunger 5 to the moving quantity of the detecting body 2 in the initial stage of the movement of the detecting body 2 is small, no large reaction force acts upon the detecting body 2. As the moving quantity of the detecting body 2 gradually increases, however, the moving quantity of the plunger 5 in the rightward direction in the figure becomes larger even when the detecting body 2 is moved in the same quantity, since the gradient of the slope 3b of the groove 3 becomes steeper. Therefore, the reaction force to the detecting body 2 gradually increases and, when the reaction force goes to the maximum, a magnet 6 generates an electric signal to a Hall element 8.

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a remote control device for a transmission in a vehicle, and in particular, it simplifies a mechanism that applies reaction force to a change lever to reduce the number of manually applied parts, and improves the operational feel of a shift operation. This invention relates to a remote control device that has been improved to be similar to conventional manual operation.

BACKGROUND ART Conventionally, various automatic transmissions have been proposed in which a manual transmission is operated by an actuating device powered by air or electricity, and a command unit equipped with a change lever for remotely controlling the actuating device. In the conventional command unit, when applying a predetermined reaction force to a shift/select operation of the change lever to obtain a response, air cylinders are installed on both sides of the member that reciprocates due to the shift or select operation. This method required a click ball for moderation and a coil spring for pressure, which required a large number of parts to achieve the desired response, and the structure was complicated. . In addition, as a result of the complicated structure, many man-hours are required for assembly, and there are also drawbacks such as poor maintainability and high cost. In addition, in the conventional mechanism for obtaining a response for shift operation, a pair of pneumatically operated plungers was disposed on both sides of the member that reciprocated when the change lever was shifted. As shown, since the displacement of the member and the displacement during plunging are the same, the reaction force due to the air pressure increases rapidly as shown by curve C3 at the beginning of the shift slope of the change lever, and then becomes a constant value. For this reason, there is a drawback in that it is not possible to obtain a natural operating feeling, which is light at first and then gradually increases in reaction force, as in conventional manual operation.

Purpose The present invention has been made to eliminate the drawbacks of the prior art described above, and its purpose is to provide an arcuate groove on the side surface of a member that reciprocates when a change lever is shifted. , by providing a plunger that is elastically pressed by air pressure from a direction perpendicular to the vertical groove, the tip of the plunger remains in the arc-shaped groove no matter which direction the member is moved by the shift operation of the change lever. The reaction force is generated by being pushed up from the deepest part along an arcuate slope, simplifying the mechanism that obtains the response when shifting the change lever, reducing the number of parts, and making assembly easier. The purpose is to facilitate maintenance, improve maintainability, and reduce costs.Another purpose is to configure the change lever so that the tip of the plunger contacts the deepest part of the arc-shaped groove when the change lever is in the neutral position of shift operation. By doing so, it is possible to obtain a natural shift feeling that is light at the beginning of the shift operation and gradually becomes heavier.

Configuration In short, the present invention uses electric transmission,
1. Automatic gear shifting is performed by an actuating device powered by air or the like, and the actuating device is remotely controlled,
An arcuate groove is provided on the side surface of a member that reciprocates when the change lever is shifted, and the member is elastically pressed in a direction perpendicular to the arcuate groove on the side surface of a cylinder that slidably accommodates the member. The present invention is characterized in that a slidable manual plunger is provided, and the tip of the plunger is configured to abut the deepest part of the arcuate groove when the change lever is in the neutral position.

The present invention will be explained below based on embodiments shown in the drawings. A transmission remote control device 1 according to the present invention is configured to automatically shift a transmission (not shown) using an actuating device (not shown) powered by electricity, air, etc., and to remotely control the actuating device. In this case, the side surface 2a of the detection body 2 at the shift operation position, which is a member that reciprocates by the shift operation of a change lever (not shown).
An arc-shaped groove 3 is provided in the cylinder 4, and a side surface 4a of a cylinder 4 that slidably accommodates the detection object is elastically pressed in a direction perpendicular to the arc-shaped groove 3' so as to be slidable. A plunger 5 for manual application is provided. Further, the arc-shaped groove 3 does not need to be a perfect arc, and it goes without saying that it may be a curved surface that approximates an arc. Tip 5a of plunger 5
is configured to come into contact with the deepest part 3a of the arc-shaped groove 3 when the change lever is in the neutral position of the shift operation. And plunger 5 is cylinder 4
It is slidably housed in a hollow part 9a of a sub-cylinder chamber 9 formed on a side surface 4a of the sub-cylinder chamber, and an air port 9b for sucking and discharging air into the hollow part 9a is provided on the side surface of the sub-cylinder chamber. There is.

The cylinder 4 may be attached directly to a part of a change lever of a command unit that generates a command signal for a gear change operation to an actuating device that automatically changes gears of a transmission, or it may be installed separately from a part of the change lever, for example. It may be stored in the dash board of the driver's seat of the vehicle and mechanically connected to a part of the change lever by a push-pull cable or the like. The detection body 2, which is slidably housed in the hollow part 4b of the cylinder 4, is for electrically detecting the shift operation position, and has a pair of magnets 6 buried therein, and the cylinder facing the magnets. A pair of Hall elements 8 are fixed to the inner surface of 4.

Function The present invention is constructed as described above, and its function will be explained below. When the change lever is shifted from the neutral position to any gear position, the detection body 2 slides in the cylinder 4 in either the up or down direction. In this case, for example, if the change lever is operated to shift to the second gear position from the second and third gear selection positions, the detection body 2 will slide from position N in the direction of arrow A. . Then, the tip 5a of the plunger 5 slides on the arc-shaped groove 3, but since the angle of inclination of the inclined surface 3b is extremely small near the deepest part 3a of the arc-shaped groove 3, the air supplied from the air port 9b Therefore, the influence of air pressure generated within the hollow portion 9a is small. In other words, even if the same air pressure acts on the right side surface 5b of the plunger 5, since the amount of movement of the plunger 5 is small relative to the amount of movement of the detection object 2, a large reaction force will not act on the detection object 2, and the detection body 2
At the beginning of the movement, an extremely small reaction force is applied. Then, the amount of movement of the detection body 2 gradually increases (as the slope of the slope 3b of the arc-shaped groove 3 gradually becomes steeper, even if the detection body 2 moves by the same amount, the plunger 5
The amount of movement to the right in the figure gradually increases (becomes). Therefore, the reaction force against the detection object 2 gradually increases.
To explain this using the reaction force curve Cm shown in the figure, a gentle reaction force is obtained at the beginning of the shift stroke of the change lever, and as the shift stroke becomes larger, the reaction force gradually increases, and the time is exactly when this reaction force reaches its maximum value. At this point, the magnet 6 comes to face the Hall element 8. Then, an electric signal is generated and the electric signal causes the airport 9 to
Air is exhausted from b. As a result, the air pressure against the plunger 5 disappears, and even if the shift stroke increases thereafter, there is no reaction force against the detection body 2, so the reaction force against the change lever also disappears, and the operation suddenly becomes lighter. In this way, it is possible to obtain a natural shift feeling that is light at the beginning of the shift operation and gradually becomes heavier, which is very similar to the shift feeling of a conventional manually operated transmission.

The same applies when the change lever is shifted, for example, from the neutral position shown in FIG. 1 to the third gear position as shown by arrow B. Also, the reaction oil vA shown in Figure 2
If you want c z to have a different operating feel, you can change the curve of the arc-shaped groove 3 as appropriate, and by doing so, you can obtain an arbitrary operating feeling.
Of course, it is also possible to set the shift feeling to speed or third speed differently by changing the shape of the arcuate groove.

Effects Since the present invention is configured and operates as described above, an arcuate groove is provided on the side surface of the member that reciprocates by the shift operation of the change lever, and air pressure is applied from a direction perpendicular to the liquid groove. Since a plunger that is elastically pressed is provided, no matter which direction the member is moved by the shift operation of the change lever, the tip of the plunger will move from the deepest part of the arcuate groove to the arcuate slope. It is possible to generate a reaction force by being pushed up by the change lever, simplifying the mechanism that obtains the response during shift operation of the change lever, reducing the number of parts, and facilitating assembly. This has the effect of improving maintainability and reducing costs. In addition, when the change lever is in the neutral position of the shift operation, the tip of the plunger is in contact with the deepest part of the arc-shaped groove, so it feels light at the beginning of the shift operation, but gradually becomes heavier. This has the effect that it can be obtained.

[Brief explanation of drawings]

1 and 2 relate to an embodiment of the present invention, in which FIG. 1 is a vertical sectional view of a main part of a remote control device for a transmission, and FIG.
The figure is a diagram showing changes in reaction force against the change lever during a shift operation, and FIG. 3 is a similar diagram according to a conventional example. 1 is a remote control device for a transmission; 2 is a detection body that is an example of a member that reciprocates when a shift lever is operated; 2a is a side surface; 3 is an arc-shaped groove; 3a is the deepest part; 4
is a cylinder, 4a is a side surface, 5 is a plunger, and 5a is a tip.

Claims (1)

[Claims] In a transmission in which gears are automatically shifted by an actuating device using electricity, air, etc. as a power source, and the actuating device is remotely controlled, an arc-shaped groove is provided on the side surface of a member that reciprocates by the shift operation of a change lever, A manual plunger configured to be elastically pressed in a direction perpendicular to the arcuate groove so as to be slidable is provided on the side surface of the cylinder that slidably accommodates the member, and when the change lever is in the neutral position, A remote control device for a transmission, characterized in that the tip of the plunger is configured to abut the deepest part of the arcuate groove.