JPH0242272A - Transmission control device - Google Patents

Abstract

PURPOSE:To prevent application of overload to a cable by furnishing No.1 and No.2 stoppers on No.1 rotor and a stationary base, and restricting rotation of No.2 rotor. CONSTITUTION:When a lever 50 is moved in the select direction X1-X2, No.2 rotor 51 rotates round No.2 shaft, and the rotating extent of No.2 rotor 51 in this direction is restricted by No.1 stoppers 80, 81 installed on No.1 rotor 21. When the lever 50 is moved in the shift direction Y1-Y2, No.2 rotor 51 rotates round No.1 shaft, and the rotating extent of No.2 rotor 51 in this direction is restricted by No.2 stopper 83 installed on a stationary base 11. When No.2 rotor 51 rotates round No.1 shaft, a left and a right bell crank 35, 36 rotate together with No.1 rotor 21 and No.2 rotor 51 round No.1 shaft through a joint mechanism 71 in the direction fore and aft, and thus shifting operation is made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmission control device used for remote control of a manual transmission of an automobile or the like.

[Prior Art] Devices that use push-pull cables to select and shift transmissions have been known. A conventional device of this type is, for example, the Japanese Patent Publication No. 5B-231
This method is disclosed in Japanese Patent Publication No. 69 and Japanese Patent Publication No. 80-49327. Further, the conventional device shown in FIGS. 3 and 4 includes a fixed base 101, a first rotating body 103 rotatably supported on the fixed base 101 about a first shaft 102, The first shaft 10
A pair of left and right bell cranks 106 and 107 each having a cable connection part 104 and 105 at one end thereof, and a second bell crank in a direction orthogonal to the first axis a second rotating body 110 that is rotatably provided around the shaft 108 and has an operating lever 109;
Pole studs I11 and 112 protrude in a direction parallel to Ill 102, and the pole studs Ill,
Synthetic resin bushing 113 rotatably fitted to 112
, 114, and the bushes 113 and 114 are U-shaped bush receivers provided at the operating ends of the bell cranks 108 and 107.

116 so as to be slidably held.

The second rotating body 110 is urged to a neutral position around the second shaft 108 by a return spring 117.

In this conventional device, when the lever 109 is moved in the left-right direction (X direction in the figure), the second rotating body 110 rotates around the second shaft 108, so that the pole stud 111°11,2 rotates around the second shaft 108. The bell crank 106
, 107 in opposite directions, the push-pull cables 120, 121 move in opposite directions by the same amount. Then, gear selection is performed within the transmission depending on the direction of movement of the cables 120°121.

On the other hand, when the lever 109 is moved in the front-back direction (the y direction in the figure), the first rotating body 103 and the second rotating body 110 rotate in the front-back direction centering on the first shaft 102, so that the bell The cranks ioe and to'y rotate in the same direction according to the inclination of the lever 109. At this time, the push-pull cables 120, 121 move in the same direction, thereby causing a gear shift within the transmission depending on the direction of movement of the cables 120, 1.21.

[Problems to be Solved by the Invention] Since the conventional control device described above is not provided with a stopper in the shift direction, a stopper inside the transmission is used to restrict the rotation range in the shift direction. Therefore, when an overload is applied to the operating lever, an overload is applied directly to the push-pull cable, which may have a negative effect on the life of the cable.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transmission control device that can prevent cables from being overloaded.

[Means for Solving the Problems] In order to achieve the above object, the present invention has invented a transmission control device having the following configuration.

That is, a fixed base, a first rotating body rotatably supported by the fixed base about a first axis, and a relative rotation about the first axis with respect to the first rotating body. a pair of left and right bell cranks that are freely provided and each having a cable connection portion on one end side; a second rotating body having an operation lever; a joint mechanism provided between the other end side of each bell crank and a member on the second rotating body side and transmitting the movement of the second rotating body to each bell crank; A return spring for holding the second rotating body in a neutral position around the second axis, and a return spring provided on the first rotating body so that the second rotating body is relatively tilted to a predetermined angle around the second jl111. a first member that restricts the range of rotation about the second axis by engaging with a member on the second rotating body side in the state;
stopper means provided on the fixed base and a second stopper means;
A second stopper means that restricts the range of rotation about the first axis by engaging with a member on the second rotating body when the rotating body is relatively inclined to a predetermined angle about the first axis. It is equipped with the following.

[Operation] In the device of the present invention having the above configuration, when the lever is moved in the select direction, the second rotating body rotates around the second axis, and the rotation range of the second rotating body in this direction is equal to that of the first. regulated by stopper means. When the second rotating body rotates around the second axis, the left and right bell cranks rotate by the same amount in opposite directions via the joint mechanism, and the cables connected to the bell cranks rotate in opposite directions. A select operation is performed within the transmission by moving the switch.

When the lever is moved in the shift direction, the second rotating body rotates about the first axis, and the range of rotation of the second rotating body in this direction is regulated by the second stopper means. When the second rotating body rotates about the first axis, the pair of left and right bell cranks rotates together with the first rotating body and the second rotating body in the front-rear direction about the first axis via the joint mechanism. In order to move
Each cable moves in the same direction to effect a shifting operation within the transmission. In this case, since the first rotating body and the second rotating body integrally rotate in the front-rear direction about the first axis, no sliding occurs in the first stopper means.

[Embodiment] An embodiment of the present invention will be described below with reference to the transmission control device 10 shown in FIGS. 1 and 2.

The fixed base 11 is fixed to a member on the vehicle body side (not shown). This fixed base 11 is provided with a bracket part 12.13 and a cable support part 14.15. A stepped bolt 16.17, used as the first leg A, is fixed to the bracket part 12.13 by a nut 18.19.

Then, the first rotating body 21 is
is supported rotatably around a first axis A. 22.
23 is a washer. The first rotating body 21 has a substantially U-shape when viewed from the top side in the figure. That is, this rotating body 21 is composed of a main wall portion 25 and a pair of side wall portions 26 and 27 that are continuous on both left and right sides of this main wall portion 25 and face each other.

The medium diameter portion 1 of the bolt 16.17 is attached to the side wall portion 26.27.
Through holes 28 and 29 are provided through which the 6a and 17a are inserted. A through hole 30 is provided at the lower end of the main wall 25 in the drawing, into which a tip end 52b of a stepped bolt 52 (to be described later) is inserted, and a spring receiver 31 protrudes at the center of the lower end of the main wall 25. It is set up.

Furthermore, bell cranks 35 and 36 are provided on both left and right sides of the first rotating body 21 so as to be rotatable around the first axis A. That is, the medium diameter portions 16a and 17a of the stepped bolt 16.17 are inserted into the through hole 37.38 formed in the bell crank 35.36 so as to be relatively rotatable. An annular spacer 39.40 is interposed between the first rotating body 21 and the bracket part 12.13.

Cable connection part 43 on one end side of bell crank 35.36
．． 44 are provided, and one end side of push-pull cables 45, 46 (only a portion of which is shown) is connected to each of the connecting portions 43 and 44. The other ends of the cables 45 and 46 are connected to a transmission control device (not shown).

The second rotating body 51 having the operating lever 50 is connected to the second axis B.
It is rotatably provided around the axis of a stepped bolt 52. This stepped bolt 52 is provided in a direction perpendicular to the first axis A and intersects with the first axis A, and the middle diameter portion 52a of this pole I.52 is the second rotating body 5].
It is inserted into a through hole 53 opened in , so as to be relatively rotatable around the axis. The bolt 52 is fixed to the first rotating body 21 by a nut 54 screwed into the threaded end portion 52b.

Annular spacers 55 and 56 are inserted into the opening of the through hole 53.

Further, a convex portion 6° is provided on the lower surface side of the second rotating body 51 in the drawing. This convex portion 60 enters into a shift/select guide hole 61 provided in the fixed base 11. The guide hole 61 has a shape corresponding to the selection and shift movement direction and movement distance of the operating lever 50. Lever 5
The center 01 of o and the center 02 of the guide hole 61, that is, the center of the second stopper wall 82 and 83 to be described later, are
It is located on a line extending perpendicularly to the axes A and B from the intersection of the first axis A and the second axis B.

A spring holder 63 is fixed to the rear side of the first rotating body 21 in the drawing with a stepped bolt 52 and a nut 54, and a return torsion spring 64 is rotatably held in the spring holder 63. This spring 64 is connected to a pair of arm portions 65.6.
It is equipped with 6.

The spring bearing part 31 of the first rotating body 21 and the convex part 60 of the second rotating body 51 are sandwiched between the arm parts 65 and 66, and the second rotating body 51 is moved by the elasticity of the spring 64. It is urged to return to the neutral position, ie, the center 02.

An actuation element 70 is fixed to the front side of the second rotating body 51 in the drawing. A joint mechanism 7 is provided at both ends of this actuating element 70.
Bushes 75 and 76 are provided as synthetic resin wire receivers that are rotatably fitted into the ball stands 72 and 73 of the ball stands 72 and 73 that constitute the ball studs 72 and 73.

The pole studs 72, 73 project equidistantly from each other in a direction parallel to the first leg A and perpendicular to the second axis B. Bush 75.76 is bell crank 35°3
The U-shaped bushing receiver formed at the operating end of 6 is part 77.
78 in a slidable manner.

And the illustrated upper end 0 of the side wall portion 26.27 of the first rotating body 21
At 111, a pair of stopper walls 80, 81 as first stopper means are provided to protrude in directions facing each other.

This stopper wall 80.81 is adapted to engage with the lower part of the operating lever 50 when the second rotating body 51 is tilted to a predetermined angle around the second axis B. That is, the first stopper wall 80.81 causes the operating lever 5
The movement range of 0 in the selection direction is restricted.

In addition, stoppers M82.83 as second stopper means are provided at the front and rear edges of the guide hole 61 of the fixed base 11.
is provided. These stopper walls 82, 83 are adapted to engage with the convex portion 60 of the second rotating body 51 when the second rotating body 51 is tilted to a predetermined angle around the first axis A. . That is, the stopper walls 82 and 83 restrict the movement range of the operating lever 50 in the shift direction. From one stopper wall 82 to the other stopper wall 8
The distances up to 3 are sized according to the shift stroke in the transmission. In other words, by changing the distance between these stopper walls 82, 83,
It is possible to easily adjust the shift stroke for each select position.

Next, the operation of the apparatus of the above embodiment will be explained.

When the operating lever 50 is tilted in the X1 direction shown in FIG. While rotating counterclockwise in the figure, the other bell crank 36 rotates clockwise in the figure around the first support A. Therefore, one cable 45 moves in the pull direction and the other cable 46 moves in the bush direction. On the contrary, when the operating lever 50 is tilted in the x2 direction shown in the drawing, the second rotating body 51 is moved so that the lever 50 is moved toward the stopper wall 8.
1, one bell crank 35 rotates clockwise in the figure around the first axis A, and the other bell crank 36 rotates counterclockwise in the figure. Therefore, one cable 45 moves in the bush direction, and the other cable 46 moves in the pull direction. In this way, the cables 45 and 46 move in opposite directions (thereby, a gear selection operation is performed in the transmission. During this selection operation, the return spring 6
Since the torsion acts in the direction of widening the opening angle of the arm portions 65 and 66 of 4, when the lever 50 is released, the second rotating body 51 returns to its original neutral position due to the elasticity of the spring 64.

When the lever 50 is tilted in the y1 direction in the drawing with the bar 50 at the desired selection position, the first rotating body 21 and the second rotating body 51 are integrated around the first axis A to move the lever 50 to the y1 direction.
The lever 50 tilts until the convex portion 60 comes into contact with one stopper wall 82 in the guide hole 61. As the actuating element 70 rotates downward with this movement, both bell cranks 35 and 36 rotate in the y1 direction. During this shift operation, since the spring 64 is displaced in the same direction along with the first rotating body 21 and the second rotating body 51, the repulsive force of the spring 64 does not act in the shift direction.

Conversely, when the operating lever 50 is tilted in the y2 direction, the first
The first rotating body 21 and the second rotating body 51 rotate together in the y2 direction about the axis A, and the lever 50 tilts until the convex portion 60 hits the other stopper wall 83. By doing this, both bell cranks 35 and 36 rotate in the X2 direction. This movement causes the actuating element 70 to pivot upward, causing the cables 45, 46 to move in the same direction, completing a shifting operation within the transmission.

In the transmission control device 10, the lever 50 is moved in the select direction (xl or X2 direction).
When the lever 50 is pushed down all at once, the lever 50 comes into contact with the stopper wall 80 (or 81), but when the lever 50 is moved in the shift direction (yt or X2 direction) in this state, the first rotating body 2] and the second rotating body 51 rotate around the first axis A together, so even if a shift operation is performed while the lever 50 is in contact with the stopper wall 80.81, the lever 50 and the stopper wall 80.81 will slide against each other. Never. Therefore, the lever 50 can be smoothly rotated in the shift direction.

When the lever 50 is moved in the select direction, the rotation range of the lever 50 can be directly regulated by the stopper wall 80° 81 provided on the first rotating body 21, and when the lever 50 is moved in the shift direction, the stopper wall 80° 81 provided on the first rotating body 21 can directly regulate the rotation range of the lever 50. Since the rotation range of the lever 50 can be directly restricted by the stopper walls 82, 83, even if an excessive force is input to the lever 50, it is possible to prevent an overload from being applied to the cables 45, 46.

In addition, since the rotation center of the lever 50 is located at the intersection of the two rotation axes A and B that are orthogonal to each other, the lever 50 is located at the same point in the select direction and the shift I/direction (the intersection of A and B).
It will draw an arc centered on . For this reason, lever 5
0 has a good operating feel.

[Effects of the Invention] According to the present invention, the amount of movement of the lever in the select direction and the amount of movement in the shift direction can be directly regulated by stopper means provided in the control device itself, so that excessive movement is avoided when operating the lever. Even if force is input, overload can be prevented from being applied to the cable.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a transmission control device showing an embodiment of the present invention, FIG. 2 is a perspective view of the device shown in FIG. 1 in an assembled state, and FIG. 3 is a perspective view of a conventional device. , FIG. 4 is an exploded perspective view of the conventional device. A...First axis, B...Second axis, 10...Transmission control device, 11...Fixed base, 21...First rotating body, 35.36...Bell crank , 43.44... Cable connection part, 45.46.
... cable, 50 ... coal making lever 51 ... second rotating body, 64 ... return spring, 71 ... joint mechanism, 80.81 ... first stopper wall, 82.8
3...Second stopper wall. Applicant's Representative Patent Attorney Takehiko Suzue Figure 2 Figure Figure 2

Claims (2)

[Claims] (1) A fixed base, a first rotating body rotatably supported by the fixed base about a first axis, and a first rotating body that rotates independently relative to the first rotating body about the first axis. a pair of left and right bell cranks that are movably provided and each having a cable connection portion at one end; and a pair of left and right bell cranks that are movably provided on the first rotating body and are movable about a second axis in a direction perpendicular to the first axis. and a second rotating body having an operation lever, and a second rotating body provided between the other end side of each bell crank and a member on the second rotating body side.
a joint mechanism that transmits the movement of the rotating body to each bell crank; a return spring for holding the second rotating body in a neutral position around the second axis;
A first stopper means that restricts the range of rotation around the second axis by engaging with a member on the second rotation body side when the rotation body is relatively inclined to a predetermined angle around the second axis. and the second rotating body is provided on the fixed base and the second rotating body is connected to the first rotating body.
and a second stopper means that restricts the range of rotation about the first axis by engaging with a member on the second rotation body side in a state of relative inclination to a predetermined angle about the axis. A transmission control device featuring: (2) The first axis and the second axis are orthogonal to each other and intersect with each other, and the center of the lever and the center of the second stopper means are located on a line extending perpendicularly to both axes from the intersection point. 2. The transmission control device according to claim 1.