JPH0215744B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Object of the Invention (1) Industrial Application Field The present invention relates to an automatic transmission operating device mainly arranged on the side of the driver's seat of an automobile, and in particular to a mounting plate,
A shift lever is pivotally supported by the mounting plate and has a lever knob at its upper end so as to be rotatable between a plurality of shift positions; a control rod disposed within the shift lever so as to be movable up and down; a push button that is slidably engaged with a horizontal hole opening on one side of the lever knob and that is formed with a slope that engages with the upper end of the control rod in order to lower the control rod when pressed. , a lockout plate arranged on one side of the shift lever along the direction of rotation thereof and fixed to the mounting plate, and a long hole extending in the axial direction of the shift lever is provided in the side surface of the lower end of the control rod. An operating device for an automatic transmission comprising: a lockout plate having a protruding engagement pin, and a lockout plate having a regulation hole having a cam surface in the ceiling that engages with the engagement pin to regulate the shift position of a shift lever. Regarding.

(2) Prior art Such an automatic transmission operating device is known, for example, from Jikosho.
This is already known as described in Japanese Patent No. 52-51379.

(3) Problems to be solved by the invention In the conventional automatic transmission operation device, when the push button is released, the push button is always moved to a predetermined retracted position where it is most protruded from the lever knob, regardless of the ascending/descending position of the control rod. In order to hold the push button without causing it to move, the upper end of the control rod is engaged with the wedge-shaped engagement hole drilled in the push button, and a return spring that biases the push button in the backward direction is inserted into the side hole of the lever knob. Therefore, it is difficult to downsize the lever knob because a space for storing the return spring must be secured in the horizontal hole of the lever knob.

Therefore, in the present invention, even if the return spring of the push button is not housed in the horizontal hole of the lever knob, when the push button is released, it can be held at a predetermined retreat position without any movement, thereby reducing the size of the lever knob. It is an object of the present invention to provide the operating device that can contribute to the invention.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention includes a mounting plate and a mounting plate that is pivotably supported on the mounting plate so as to be rotatable between a plurality of shift positions. A shift lever having a lever knob at the upper end, a control rod disposed within the shift lever so as to be able to rise and fall, a return spring that biases the control rod in an upward direction, and a horizontal hole opening on one side of the lever knob. A push button that slides together and is formed with a slope that engages the upper end of the control rod in response to a pressing operation to lower the control rod, and a mounting plate that is arranged on one side of the shift lever along its rotational direction. A lockout plate is fixed to the shift lever, and an engagement pin is protruded from the side surface of the lower end of the control rod to pass through an elongated hole extending in the axial direction of the shift lever. An operating device for an automatic transmission comprising a regulation hole having a cam surface in the ceiling that engages to regulate the shift position of a shift lever, the upper rod having a pressing roller that engages with the inclined surface of the push button; , and a lower rod having an engagement pin are fitted to be movable in the axial direction relative to each other within a certain stroke range to form a control rod, and one of the upper rod and the lower rod has an elongated hole extending in the axial direction. and a pin slidably fitted into the elongated hole on the other hand, and an upper return spring and a lower return spring for biasing the upper rod and the lower rod individually in the upward direction are housed in the shift lever. It is characterized by

(2) Function When the push button is pressed, the upper rod is first lowered against the force of the upper return spring, and then the upper rod lowers the lower rod against the force of the lower spring, so that the engagement pin can be lowered and separated from the cam surface of the lockout plate.

In the released state of the push button, the upper rod is raised by the force of the upper return spring to hold the push button in a predetermined retracted position, regardless of the raised or lowered position of the lower rod.

In this case, the lower rod is held unrotatable with respect to the shift lever by the engagement pin, and the upper rod is held unrotatable with respect to the lower rod by the pin, so that the pressure roller and the slope of the push button The engaged state is reliably maintained, which allows the control rod to move up and down smoothly.

Moreover, since the pressing roller rolls on the slope when the push button is pushed in and released, wear on the slope is suppressed as much as possible, thereby improving the durability of the push button.

(3) Embodiment An embodiment of the present invention will be explained below with reference to the drawings. First, in FIG. 1, a shift lever 1 is shown.
is rotatably supported by a pivot 3 on a mounting plate 2 fixed to a floor plate (not shown) of the vehicle body in the longitudinal direction of the vehicle body. A manual valve (not shown) of the automatic transmission is controlled.

The shift lever 1 includes a lever lower part 1a having a U-shaped cross section and a boss 5 at the lower end, and a lever lower part 1a having a U-shaped cross section.
It consists of a pipe-shaped lever upper part 1b that fits into the upper end of the lever part 1b and is connected to the upper end of the lever part 1b, and a lever knob 1c that fits into the upper part of the lever part 1b and is fixed with a screw 6. A terminal rod 4a of an operating wire 4 connected to a manual valve of an automatic transmission is connected to the lower part 1a of the lever (see FIG. 2). The terminal rod 4a is provided with a turnbuckle 8 for length adjustment.

The lever knob 1c is provided with a vertical hole 9 that communicates with the hollow part of the lever upper part 1b, and a horizontal hole 10 that is perpendicular to the vertical hole 9 in a T-shape, and one end of the horizontal hole 10 faces toward the driver's seat. It was once open, and the other end is a dead end.

A push button 11 is slid into the horizontal hole 10,
As a result, a control rod 12 that can be raised and lowered is disposed across the vertical hole 9 and the hollow part of the lever upper part 1b.

The upper end of the control rod 12 projects into a transverse hole 10, into which a pressure roller 13 is pivoted 14. This pressing roller 13 is engaged with a slope 11a formed at the inner end of the push button 11 so that it is pushed toward the control rod 12 by the pushing operation of the push button 11.

In order to prevent incorrect assembly of the push button 11 to the pressure roller 13, a key 15 is provided protruding from the lower surface of the push button 11, and a key groove 16 that engages with the key 15 is recessed in the bottom wall of the horizontal hole 10. Ru. In order to prevent the push button 11 from slipping out of the horizontal hole 10, a long hole 17 is formed in the push button 11 in the axial direction thereof, and a stopper pin 18 to be inserted into the long hole 17 is fixed to the lever knob 1c. be done.

The control rod 12 consists of an upper rod 19 that supports the pressure roller 13 and a hollow lower rod 20 located below it.
It is slid into the hollow part of.

A pin 21 is fixed to the lower end of the small diameter portion 19a, passing through it laterally, and both ends of the pin 21 are slidably fitted into elongated holes 22 extending in the axial direction of the lower rod 20. As a result, both rods 1
While allowing relative sliding within a certain range of 9 and 20,
Prevent relative rotation.

The upper and lower rods 19, 20 are connected to the horizontal hole 10.
and is biased in the upward direction by upper and lower return springs 23 and 24 housed in the lever upper part 1b, respectively.

An engagement pin 25 is fixed to the lower end of the lower rod 20, passing through it in the left-right direction. Engagement pin 2
5 has a pair of left and right metal guide rollers 26, 26 sandwiching the lower rod 20, and a synthetic resin rod roller 2 adjacent to the left and right guide rollers 26.
7 are rotatably fitted respectively. In order to prevent these rollers 26, 26, and 27 from coming off, a bulge 25a is formed at one end of the engagement pin 25, and a clip 28 is secured to the other end.

The pair of guide rollers 26, 26 are slidably fitted into elongated holes 29, 29 extending in the axial direction formed in the left and right side walls of the lever lower portion 1a, respectively.
This allows the lower rod 20 to move up and down while preventing it from rotating.

The lock roller 27 cooperates with a lockout plate 30 disposed on the left side of the shift lever 1 to regulate the shift position of the shift lever 1.

As shown in FIG. 2, the lockout plate 30 is disposed along the rotating direction of the shift lever 1 and is attached to the mounting plate by a pair of front and rear bolts 31, 31.
is fixed to. A regulation hole 32 is bored in the plate 30, and the rock roller 27 engages with a cam surface 32a on the ceiling of the regulation hole 32.

In the illustrated example, the shift lever 1 has six shift positions from the front to the rear of the vehicle: parking range P, reverse range R, neutral range N, overdrive range OD, normal drive range D, and low speed hold range L. The cam surface 32a is formed in correspondence with these shift positions.

That is, the cam surface 32a is formed high in the N to D range portions and low in the R and L range portions. Further, the P range part is formed at the same height as the R range part, but a downward protrusion is provided between them. Incidentally, the portion of the cam surface 32a that has no undulations is an arcuate surface centered on the pivot shaft 3.

Therefore, the shift lever 1 can be rotated between N and D ranges without lowering the rotary roller 27, but the shift lever 1 cannot be rotated from N to R range or from D to L range. This can only be done by lowering the rock crawler 27. Further, the shift lever 1 cannot be rotated between the R and P ranges without always lowering the rocker roller, regardless of the direction of rotation.

To lower the rock roller 27, the push button 11 can be pressed. When the push button 11 is pressed, its slope 11a pushes down the upper rod 19 of the control rod 12 through the pressure roller 13 against the force of the upper return spring 23, and then the upper rod 1
9 pushes down the lower rod 20 through the pin 21 against the force of the lower return spring 24, so that the engagement pin 2
5, the rock roller 27 is lowered.

By the way, the control rod 12 is divided into an upper rod 19 and a lower rod 20, and an upper return spring 23
Since the upper rod 19 is individually biased in the upward direction by the lower return spring 24 and the lower return spring 24, the upper rod 19
Regardless of the elevation position of the lower rod 20, the pressure roller 13 can always be brought into pressure contact with the slope 11a of the push button 11. Therefore, when the push button 11 is released, it is always held at a predetermined retreat position and its accidental movement is prevented. can do. On the other hand, at any shift position of the shift lever 1, the lower rod 20 presses the rock roller 27 against a predetermined location of the cam surface 32a of the regulation hole 32 by the force of the lower return spring 24, so that the roller 27 and the lower rod 20 Vibration can be suppressed.

In this case, the lower rod 20 is held unrotatably with respect to the shift lever 1 by the engagement pin 25,
Further, since the upper rod 19 is held unrotatable with respect to the lower rod 20 by a pin 21, the pressing roller 13 and the slope 11a of the push button 11
The engagement state with the control rod 12 is reliably maintained, thereby allowing the control rod 12 to move up and down smoothly.

Furthermore, when the push button 11 is pushed in and released, the pressure roller 13 rolls on the slope 11a, so wear on the slope 11a is suppressed as much as possible, thereby improving the durability of the push button 11.

As described above, if the lock roller 27 is biased in the direction of pressing against the cam surface 32a of the regulation hole 32, for example, when the shift lever 1 is rotated from the R range to the N range (in this case, the pushbutton 1
1 does not need to be pressed), the rod roller 27 rises rapidly, and the force of the lower return spring 24 and the lower rod 2
Due to the inertia of zero, the N range part of the cam surface 32a will be hit hard, but this
As mentioned above, it is made of synthetic resin and has appropriate elasticity, so it can absorb the impact by itself.

This phenomenon also occurs when the push button 11 is rapidly released from the depressed position.

Also, shift the shift lever 1 from the N range to the D range, for example.
When rotating to the range, the rock roller 27 rolls on the cam surface 32a, so the frictional resistance with the cam surface 32a is extremely small.

In FIGS. 1 and 3, the daytent device 33 is used to rotate the shift lever 1 to each shift position.
gives moderation. The detent plate 34 of the detent device 33 is arranged parallel to the lockout plate 30, sandwiching the shift lever 1, and is connected to two sets of bolts and nuts 36, 3.
7; It is fixed to the bracket 35 by 36 and 37, and the bracket 35 is attached to the mounting plate 2 by bolts 38.
is fixed to.

The entire detent plate 34 has an arc shape centered on the pivot shaft 3 of the shift lever 1, and a plurality of notches 39, 39, . . . corresponding to each shift position of the shift lever 1 are provided on the lower surface thereof. Engagement element 4 selectively engages with these notches 39, 39...
0 is a spring 42 that springs the locking member 40 toward the notches 39, 39, .
It is stored with.

Then, when the operator turns the shift lever 1 to a shift position somewhere between the P and L ranges,
The engaging element 40 engages with the notch 39 corresponding to that position with the elastic force of the spring 42, giving the operator a sense of control over the rotational operation and holding the shift lever 1 at the shift position.

A mounting plate 4 is bored at both ends of the detent plate 34 for the insertion of the bolts 36, 36.
3 and 43 are formed into arcuate long holes centered on the pivot shaft 3. Therefore, when assembling,
By adjusting the position of the detent plate 34 along the mounting plates 43, 43, the engager 40 can be accurately engaged with the corresponding notch 39 at a predetermined shift position of the shift lever 1. After this adjustment, the bolts and nuts 39, 37; 36, 37 are tightened.

The lockout plate 30 and the bracket 35 are integrally connected via bridge portions 44 and 45 that cross the front end of the shift lever 1. Furthermore, arm pieces 46 and 47 extending back and forth are welded to the bridge parts 44 and 45, respectively.
6, 47, both ends of the console 48 are screws 49, 4
Fixed at 9.

Referring again to FIGS. 1 and 2, console 4
8 is horizontally provided with a window 50 that passes through the window 50 and allows rotation of the shift lever 1, and this window 50 is closed by a flexible plate-shaped shutter 51. In order to enable the shutter 51 to move back and forth with the rotation of the shift lever 1, a pair of guide grooves 52, 52 for sliding both ends of the shutter 51 together are provided horizontally on the left and right side walls of the window 50. A guide hole 53 for guiding the end of the shutter 51 downward in a curved manner before and after the shutter 50 is continuously provided at both ends of the guide grooves 52, 52.

A through hole 54 that is penetrated by the shift lever 1 is bored in the center of the shutter 51, and a cylindrical cover 55 is provided on the outer periphery of the lever portion 1b that passes through the through hole 54 of the shift lever 1. be coated. In order to fix this cylindrical cover 55, an engaging claw 57 protruding from the lower end thereof is engaged with a locking hole 56 in the lever upper part 1b.

When you turn the shift lever 1, the shutter 5
The through hole 54 and the cylindrical cover 55 move relative to each other with the horizontal movement of the cover 5.
In order to eliminate the gaps between 4 and 55 as much as possible, the following shapes are given to them.

That is, as shown in FIG. 4, the through hole 54 and the cylindrical cover 55 are both formed to have an oval cross section with the major diameter in the direction of rotation of the shift lever 1, and the length of the cylindrical cover 55 is The circular cross-sectional shape is
Over the range of relative movement with the through hole 54, the short axis A is kept constant and the long axis B gradually decreases upward, and when the short axis A and the long axis B are orthogonal to the shift lever 1 and the shutter 51, the through hole It is made almost the same as that of No. 54.

Therefore, when the shift lever 1 comes to a position perpendicular to the shutter 51, the through hole 54 can fit into the lower part, that is, the large diameter part of the cylindrical cover 55, with almost no gap. When the shift lever 1 is rotated from that position, for example, to the right in FIG. However, at the same time, the cylindrical cover 55 is tilted to the positions a and b indicated by the chain lines with respect to the axis of the cylindrical cover 55. As a result, in the oval cross section of the cylindrical cover 55 at the fitting part with the through hole 54, the major axis is the same as that of the through hole 54, while the minor axis is originally unchanged, so the shift lever 1 is rotated as described above. Even through movement, the through hole 54 and the cylindrical cover 55 can be maintained in a proper fitted state with almost no gap.

The same applies when the shift lever 1 is rotated to the left in FIG.

C. Effects of the Invention As described above, according to the present invention, when the push button is released, the upper rod always presses the push button with the force of the upper return spring, regardless of the ascending and descending position of the lower rod, so that the push button is moved to a predetermined position. It is possible to hold the lever knob in the retracted position and prevent it from moving accidentally, and therefore there is no need to house a return spring in the horizontal hole of the lever knob, which is extremely effective in reducing the size of the lever knob.

In addition, the engagement state between the slope of the push button and the pressing roller is reliably maintained by the pin and the elongated hole.
The control rod can be moved up and down smoothly.

Furthermore, since it is the engagement between the slope and the pressure roller,
The durability of the push button can be improved by suppressing wear on the slope as much as possible.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention, in which FIG. 1 is a longitudinal sectional rear view, FIG. 2 is a right side view, FIG. 3 is a partially cutaway left side view, and FIG. of-
FIG. 1...Shift lever, 1c...Lever knob, 2
...Mounting plate, 3...Pivot, 4...Operation wire, 9
... Vertical hole, 10 ... Horizontal hole, 11 ... Push button, 11a ... Slope, 12 ... Control rod, 13
...Press roller, 19...Upper rod, 20...
Lower rod, 21... Pin, 22... Long hole, 23
... Upper return spring, 24 ... Lower return spring, 25
...Engaging pin, 29...Elongated hole, 30...Lockout plate, 32...Regulation hole, 32a...Cam surface.

Claims (1)

[Claims] 1 a mounting plate 2, a shift lever 1 which is pivotally supported by the mounting plate 2 and has a lever knob 1c at its upper end so as to be rotatable between a plurality of shift positions; and a shift lever 1 disposed within the shift lever 1 so as to be movable up and down. control rod 12
A return spring that biases the control rod 12 in the upward direction slides into the horizontal hole 10 that opens on one side of the lever knob 1c, and the rod 12 is pressed so that the control rod 12 is lowered in response to a pressing operation. The push button 11 has a slope 11a that engages with the upper end thereof, and a lockout plate 30 that is disposed on one side of the shift lever 1 along its rotational direction and is fixed to the mounting plate 2. An engagement pin 25 is provided on the side surface of the lower end of the shift lever 1 to protrude through a long hole 29 extending in the axial direction of the shift lever 1.
In the automatic transmission operating device, the control hole 32 has a cam surface 32a in the ceiling that engages with the cam surface 32a to regulate the shift position of the shift lever 1. Upper rod 19 with roller 13 and engagement pin 2
The control rod 12 is constructed by fitting a lower rod 20 with a lower rod 20 so as to be relatively movable in the axial direction within a certain stroke range, and one of the upper rod 19 and the lower rod 20 has an elongated hole extending in the axial direction. 22
and a pin 21 that is slidably fitted into the long hole 22 of the upper rod 1.
9 and a lower rod 20 individually in the upward direction, an upper return spring 23 and a lower return spring 24 are housed within the shift lever 1.