JP3528344B2 - Shift device for automatic transmission for vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift device for an automatic transmission for a vehicle, and more particularly to a shift device operable in both an automatic shift mode and a manual shift mode.

[0002]

As an operating device for an automatic transmission for a vehicle,
There is a shift device that has both the "I" pattern in the automatic shift mode and the "H" pattern in the manual shift mode. In the shift device, the shift lever has two rotations so as to be rotatable in the front-rear direction (hereinafter, for convenience of description, this direction in the manual shift mode is referred to as a shift direction) and the left-right direction (also referred to as a select direction). A gate plate having a central axis set therein and restricting the movement of the shift lever into an "I" pattern and an "H" pattern is arranged between the central axes of rotation and the knob on the top of the shift lever. .
As such a shift device, there is a technique disclosed in Japanese Patent Laid-Open No. 4-185955.

The shift device configured as described above not only allows the driver to select each gear stage based on his or her intention while using the automatic transmission, but also has an operation feeling similar to that of a manual transmission during a gear shift operation. It's about to get. for that reason,
In the manual shift mode, it is desired to have an operation feeling equivalent to that of a general manual transmission, in particular, a feeling that a small operation such as returning with a wrist can be performed by making the stroke of the shift lever small and the rotation angle large.

[0004]

However, in the above-mentioned conventional technique, as described above, the gate plate is arranged in the middle from the rotation center axis to the top of the shift lever, that is, the knob for operation. , The shift lever length is inevitably long, and if the stroke of the knob portion is set to a proper length, the rotation angle becomes smaller accordingly.

In order to increase the rotation angle compared to the stroke on the premise of such a configuration, it is conceivable that the gate plate is arranged at a position extremely close to the rotation center axis and the shift lever length is shortened. The space between the shaft and the gate plate cannot be indiscriminately narrowed because other related features must be placed.

Further, in the above arrangement, the lever ratio, which is the ratio of the length from the central axis of rotation to the gate plate and the length from the central axis of rotation to the knob at the top of the shift lever, becomes large. The force applied to the plate is increased by the amount corresponding to the lever ratio, and this force continuously performs the select operation and the shift operation, for example, 2-
During the 3rd gear shift operation, the protrusions of the "H" pattern on the gate are caught. Therefore, in the above-mentioned conventional technique, the width of the protruding portion is increased to secure the strength of the gate plate. Such a structure also causes a large stroke particularly in the select direction at the knob portion of the shift lever.

Further, in the shift device, the operating portion of the inhibit mechanism passes through the inside of the shift lever for the range selection operation in the original automatic shift mode, but the shift lever penetrates the gate plate. In this case, the diameter of the shift lever cannot be made thin because the operating portion of the inhibit mechanism passes inside, and the width of the gate groove of the "H" pattern for guiding it must also be increased accordingly. This causes the entire "H" pattern to become large, and increases the stroke in the select direction at the knob portion of the shift lever.

Therefore, the present invention is a shift device for an automatic transmission for a vehicle, which has an automatic shift mode and a manual shift mode, and is a general first aspect of improving the shift feeling in the manual shift mode. The purpose of 1.

Further, in the manual shift operation of the “H” pattern, it is considered that the shift feeling is shorter when the stroke amount in the select direction is shorter than the stroke amount in the shift direction. Therefore, a second object of the present invention is to preferentially shorten the stroke amount in the select direction in the manual shift mode to further improve the shift feeling.

A third object of the present invention is to improve the strength of the gate plate without increasing the weight and the number of parts.

Next, according to the present invention, the positional relationship between the shift lever and the gate plate is accurately established with one strength member as a reference without requiring special adjustment when assembling the shift device. A fourth object is to realize a shift operation with less play.

A fifth object of the present invention is to prevent an increase in weight and an increase in the number of parts for increasing the rigidity of the strength member.

A sixth object of the present invention is to simplify the inhibit mechanism operated in the automatic speed change mode and to rationalize the layout thereof to reduce the weight of the shift device and reduce the number of parts.

Further, according to the present invention, the shift lever is disposed closer to the strength member side so that the inhibit operation is directly performed between the shift lever and the strength member, whereby the shift mechanism is simplified. A seventh object is to reduce the weight of the device and the number of parts.

Finally, in the prior art, the shift lever is inserted in the gate plate, but it is necessary to provide the inhibit mechanism of a general automatic transmission in the shift lever shaft, and the shift lever shaft diameter Cannot be made too small. Therefore, the width of the gate of the gate plate into which the shift lever is inserted cannot be reduced, and the stroke amount in the left-right direction becomes long, resulting in poor shift feeling in the manual shift mode. Therefore, the present invention reduces the width of the gate of the gate plate to reduce the stroke in the select direction in the manual shift mode,
An eighth object is to improve the shift feeling.

[0016]

Means for Solving the Problems In order to solve the above problems, the present invention provides a stationary member mounted on a vehicle body, a shift lever having a knob for operation at the top, an automatic shift mode and a manual shift mode. A vehicle that includes a gate plate that defines a shift pattern, a first rotation center axis that allows the shift lever to rotate in the front-rear direction along the shift pattern of the gate plate, and a second rotation center axis that allows the shift lever to rotate in the left-right direction. In the shift device of the automatic transmission for automobiles, the gate plate is fixed to the stationary member.
And at least a part of the stationary member as a core
Is reinforced, wherein the said knob of the first and second of said shift lever across the rotation axis is disposed lowermost opposite, lowermost end of the shift lever is inserted into the gate of the gate plate, wherein The second rotation center axis is the same as the first rotation.
It is characterized in that it is arranged closer to the knob than the central axis of rotation .

Further, the shift device has first and second side plates bearing the first rotation center axis, and the first side plate has a greater strength than the second side plate. It is also possible to adopt the configuration described above.

Further, the first side plate may be configured to have a reinforcing rib.

Further, the shift lever has an inhibit mechanism pin, and the first side plate is
It is also possible to adopt a configuration having a cam of an inhibit mechanism.

In addition, the shift device integrally rotates with a cross joint that is rotatably supported around the first and second rotation center axes, and rotates integrally with the cross joint around the first rotation center axis. The shift lever may have a retainer that is rotatable around the second rotation center axis and separated from the cross joint, and the shift lever may be adjacent to the first side plate and connected to the retainer. it can.

Further, the gate plate may be arranged below the pins of the inhibit mechanism.

[0022]

In the shift device of the present invention, 2
Since the gate plate is placed at the bottom of the opposite side of the knob across the two rotation center shafts and the bottom end of the shift lever is inserted into the gate of the gate plate, the shift lever length can be shortened and manual shifting is possible. The shift operation in mode can be performed with a short stroke and a large swing angle. Also, since the lever ratio can be made smaller and the force applied to the gate plate can be made smaller, the width of the protruding portion of the “H” pattern, which was necessary to give the gate plate strength, can be made narrower, and the stroke in the select direction can be made. The amount can be shortened. Therefore, the shift feeling in the manual shift mode can be improved . Their to, by disposing the second rotation center axis above the first rotation center axis, it is possible to shorten the stroke of the select direction preferentially, it is possible to improve the shift feeling. Also, since the reinforcing gate plate electrostatic stop member as a core, it can be reinforced without using a separate reinforcement member of the gate plate, thereby enabling reduction in weight and number of parts of the shift device.

Further, in the configuration according to claim 2 , the first
The strength of one of the side plates bearing the rotation center axis is increased to form a strength member, and the position of the first rotation center axis is used as a reference to deform the other side plate having a lower strength. By doing so, it is possible to accurately set and hold the positional relationship between the shift lever and the gate plate with high accuracy. As a result, it is possible to prevent rattling at the time of operating the shift lever.

Further, in the structure according to the third aspect , since the rigidity of the first side plate as the strength member is improved by the ribs, an increase in weight of the shift device due to the improvement in rigidity is prevented, and the reinforcing member is provided. It is possible to prevent an increase in the number of parts due to addition.

Further, in the structure according to the fourth aspect , since the cam of the inhibit mechanism is formed on the strong first side plate, it is not necessary to separately provide the cam of the inhibit mechanism. Therefore, it is possible to reduce the weight of the shift device and reduce the number of parts.

Further, in the structure according to the fifth aspect , since the shift lever is offset-coupled to the second rotation shaft of the cross joint and is arranged on the side plate side of the inhibit mechanism, the inhibit pin is attached to the shift lever. The transmission member between the inhibit cam and the inhibit pin can be eliminated. Therefore, it is possible to reduce the weight and the number of parts.

Further, in the structure according to the sixth aspect , since the gate plate is arranged below the pin of the inhibit mechanism, the shaft diameter of the gate pin inserted into the gate plate can be reduced. Therefore, the gate width into which the gate pin is inserted can be reduced and the shift pattern can be reduced, so that the stroke amount of the shift lever can be shortened and the shift feeling can be improved.

[0028]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show the entire structure of an embodiment of the present invention. FIG. 1 is a rear view showing a part in section, FIG. 2 is a left side view also showing a part in section, and FIG. It is a figure.
In the following description of the embodiments, expressions such as front and rear, left and right, and upper and lower represent the relative positional relationship in the shift device, and do not limit the installation state in the vehicle.

First, explaining from the schematic configuration, as shown in FIG. 1, this shift device defines a shift lever 1 having a knob 11 for operation at the top and a shift pattern for an automatic shift mode and a manual shift mode. And a first rotation center axis X that allows the shift lever 1 to rotate in the front-back direction along the shift pattern of the gate plate 2 and a second rotation center axis Y that allows the shift lever 1 to rotate in the left-right direction.

According to the inventive subject matter, the gate plate 2
Are arranged on the opposite side of the knob 11 of the shift lever 1 with the first and second rotation center axes X and Y interposed therebetween. The second rotation center axis Y is arranged closer to the knob 11 than the first rotation center axis X. This shift device has a stationary member 3 attached to a vehicle body (not shown), the gate plate 2 is fixed to the stationary member 3, and at least a part of the stationary member 3 is reinforced by a method which will be described in detail later. Has been done. Further, the shift device has first and second side plates 31 and 32 that support the first rotation center axis X, and the first (left side in the drawing) side plate 31 has the second (see FIG. It is made stronger than the side plate 32 (on the right side in FIG. 3), and specifically has a reinforcing rib 310.

The shift lever 1 shifts from the “P” range to the “R” in the range select operation in the automatic shift mode.
Inhibit mechanism 4 for preventing inadvertent switching from range, "N" range to other range such as "R" range
The first side plate 31 has a cam 311 of the inhibit mechanism 4 (see FIG. 2). The shift device rotates integrally with the cross joint 12 that is rotatably supported around the first and second rotation center axes X and Y, and the cross joint 12 around the first rotation center axis X and the second joint. The shift lever 1 has a retainer 13 which is separated from the cross joint 12 and rotatable around the rotation center axis Y, and the shift lever 1 is connected to the retainer 13 adjacent to the first side plate 31.

The shift lever 1 has an inhibit mechanism 4
The gate pin 14 is inserted into the gate of the gate plate 2 below the pin 41, and the shaft diameter of the gate pin 14 is smaller than the shaft diameter of the shift lever 1.

Further, the detailed configuration of each part will be sequentially described. First, as shown in the exploded view of FIG. 4, the shift lever 1 is a hollow stem 1 whose lower part is slightly expanded in diameter.
0, a knob 11 assembly attached to the top thereof, and a channel-shaped retainer 13 welded and fixed to the lower side of the knob 11 and having a gate pin 14 implanted therein. The rod 4 of the inhibit mechanism 4 is provided in the hollow portion of the stem 10.
2 is inserted, a block that supports the pin 41 of the inhibit mechanism 4 is fixed to the lower end of the rod 42, and the pin 41 projects left and right through a pair of vertically elongated holes 101 formed in the large diameter portion of the stem 10. A pair of rollers 411 fitted on the outer periphery of the pin 41 are guided by the elongated holes 101 and are vertically movable. An outer peripheral thread is formed at the upper end of the rod 42, and a knob sleeve 43 having an inner peripheral thread formed therein is screwed into the thread. The knob 11 assembly is the stem 1
It is fitted to the outer periphery of the upper part of 0 and is fixed to the stem 10 with a pair of screws 48 (see FIG. 2). The tubular portion extending downward of the knob 11 assembly is formed with a sliding groove 111 extending in the vertical direction and having a lower end opened.
The connecting pin 44 fitted in the upper part of 3 slides in the groove 11
1 extends outward, and the extension is fitted into a lock ring 45 with a flange. A compression coil spring 46 is disposed between the top of the knob sleeve 43 and the inside of the knob 11, and the force of this spring 46 causes
The lock ring 45 and the rod 42 are pushed down,
The inhibit pin 41 is pressed against the inhibit cam 311 surface in the automatic shift mode. In the figure,
Reference numeral 47 denotes a knob stopper which is fitted to the outer periphery of the extension of the knob 11 and is arranged so as to cover the screw 48 and which restricts the stroke of the lock ring 45.

Next, the retainer 13 is configured as a channel-shaped member whose upper side and left and right sides are open. The upper side of the rear vertical plate extends slightly to the left, and the stem of the shift lever 1 extends from the rear side. 10 is welded and integrated. The bottom plate extends to the left and right, and a narrow plate-shaped projection 133 that projects to the left constitutes a means for engaging and disengaging with the shift cable lever 5, which will be described later, and a wide plate-shaped projection 13 that projects to the right.
4 is the shift lever 1 in the manual shift mode, which will also be described later
And a detent lever 61 that constitutes the detent mechanism 6 with respect to the shift operation. Shaft holes 131, 132 of the second rotation center axis Y aligned with each other are formed above the vertical plates before and after the retainer 13.

A block-shaped cross joint 12 is disposed inside the retainer 13, and the joint 12 has a second rotation center axis Y that penetrates the upper portion in the front-rear direction.
Shaft hole 121 and the first rotation center axis X that penetrates the lower part left and right
A shaft hole 122 is formed. Cross joint 12
Bushings 123a, 1 on both ends of both shaft holes 121, 122 of
23b, 124a, 124b are fitted and the bush 1
The collar 125 is provided on the inner circumference of the bushes 23a and 123b.
Collars 126 are fitted into the inner circumferences of 24a and 124b, respectively. A piston accommodating portion of a detent mechanism for selecting operation in the manual shift mode is formed extending downward from the front side of the cross joint 12, and the detent piston 127 moves up and down under the pushing load of the compression coil spring 128. It is freely accommodated. Detent cam 71 that cooperates with the detent piston 127
Is integrated with a select detection switch 7 to be described later and is fixedly arranged on the inner front part of the retainer 13. These are provided so as to generate a click feeling in the select direction when the shift lever 1 is operated, and the details thereof will be described later.

The stationary member 3 that supports the shift lever 1 and its related mechanism includes a dish-shaped base plate 30 and left and right side plates welded above the dish-shaped base plate 30, as shown in the perspective view of FIG. 31 and 32 and front and rear cover plate mounting arms 33 and 34. Both side plates 31, 32 are basically
The rotation supporting function of the shift lever 1 is fulfilled, and the bolts 35 constituting the first rotation center axis X are passed through the holes 312 and 322 formed in alignment with the upper portions of the shift lever 1, and the collar 126 of the cross joint 12 is provided. By inserting the bolt 35, the shift lever 1 is supported together with the cross joint 12 so as to be rotatable in the front-rear direction with respect to the stationary member 3. The side plate 31 is the other side plate 32.
The rib 310 of the side plate 31 is made thicker,
The front side has a curved shape that extends vertically around the front edge of the side plate 31 and projects outward, and the rear side has a curved edge formed by bending the rear edge of the side plate 31 outward at a right angle. The plate 32 is designed to have a sufficiently large rigidity strength. The side plate 31 is provided with a cam hole that constitutes the inhibit cam 311.

The gate plate 2 is made of a plastic material, and is placed near the right side plate 32 on the base plate 30 sandwiched between the side plates 31 and 32.
It is attached to the base plate 30 by riveting the points. As shown in detail in FIG. 6 in plan view, the gate plate 2 has a slot-shaped gate formed of an “I” pattern for the automatic shift mode and an “H” pattern for the manual shift mode on the right side thereof. The thickness of the portion surrounding the gate of the “I” pattern is increased rearward so that the gate pin 14 does not come off even when the shift lever 1 rotates about the rotation center axis X. Gate plate 2 "H"
The lower surface of the pair of front and rear protrusions 21 left between the pair of front and rear long slots that define the gate of the pattern and the left and right slot that crosses so as to connect them is shown in cross section in FIG. As described above, the concave groove is formed, and the claw 301 formed by cutting and raising the base plate 30 is formed in the concave groove.
Is used as a reinforcing core for the protrusions 21 and 21 having a narrow width according to the subject matter of the present invention.

As shown in FIG. 5, the rotation center axis X is
A shift cable lever 5 is also arranged. The lever 5 is provided to mechanically transmit the range select operation of the shift lever 1 in the automatic shift mode, that is, the forward-backward rotation to a manual valve (not shown) of the automatic transmission, and is a fan-shaped plate member. The cable block 51 is fixed to the inside of the tip, and the square hole 50 is located slightly above it.
Is formed. A projection 133 protruding leftward from the lower portion of the retainer 13 is engaged with and disengaged from the square hole 50. Inside the hollow shaft welded and integrated above the shift cable lever 5, a pair of left and right bushes 5 is provided.
2 is fitted, and a collar 53 is fitted in the bush 52. Although not shown in the figure, an end of the cable is inserted into and fixed to the cable block 51. It is burned and linked to it.

A detent mechanism 6 for shift operation is further provided so as to be aligned with the rotation center axis X. The mechanism 6 is disposed outside the right side plate 32, and has a detent lever 61 rotatably supported by a bolt 35 and a bracket 323 on the side plate 32.
And a detent spring 62 which is a leaf spring and is fixed via the. The detent lever 61 extends in a radial direction from a sleeve portion through which the bolt 35 is inserted, and has a fork-shaped switch operation arm 611 and a sickle-shaped detent cam arm 6.
12 and a retainer guide 613 is screwed and fixed in the square hole of the sickle-shaped bent portion. The bush 614 and the collar 615 are doubly fitted on the inner circumference of the sleeve portion, and the wave washers 616 are provided on both ends of the sleeve portion.
And flat washers 617 are provided respectively. On the outer peripheral surface of the sickle-shaped detent cam arm 612, a cam 618 having three troughs whose center is deeper than those on both sides is formed. The detent spring 62 has a roller 63 at its fork-shaped tip.
To the cam 618, and the base end portion of the bracket 3 protruding outward from the side plate 32 via the spacer 64.
It is screwed to 23.

Thus, as shown in FIG. 1, on the rotation center axis X, the shift cable lever 5 is located on the side plate 31 side and the cross joint 12 is located on the side plate 32 side.
Is arranged, and a detent lever 61 is arranged on the outer side of the side plate 32.
Although it is supported by both side plates 31 and 32 by tightening, the bolt 35 is fixed to the detent lever 61.
Since the rigidity of the side plate 31 is made sufficiently larger than the rigidity of the side plate 32 when the side plate 31 side is passed through from the side and the nut is tightened on the side plate 31 side, the side plate 32 bends due to the axial tightening force, and the shift cable Lever 5, cross joint 12, side plate 3
2 and detent lever 61 are all side plates 3
It is pulled to the 1 side and positioned. With this configuration, each member can be accurately positioned during assembly by removing play caused by contact between bushes, collars, etc. fitted to each member, and further, rattling during operation after assembly is substantially complete. Will be prevented.

On the other hand, also on the rotation center axis Y, the cross joint 12 is positioned without play as described above.
On the other hand, since the retainer 13 is tightened by the bolt 36 and the nut via the bush, the collar, etc., the same accurate positioning is performed.

The detent mechanism for the select operation includes a detent cam 71 integrated with the case of the switch 7 fixed to the retainer 13 and a detent piston 127 housed in the cross joint 12.
The detent cam 71, as shown in detail in FIG.
It has a cam surface extending in the left-right direction (the locus of movement of the center of the hemispherical portion of the tip of the detent piston 127 is shown by a chain line), and the cam surface has a central valley 711 and its left side (viewed from the front). 8 has a slope 712 connected to the right side) and a valley 713 on the right side (also on the left side in FIG. 8) are formed, and the center valley 711 selects the third speed and the fourth speed train in the manual shift mode. Holding the position, the slope 712 provides a neutral return action from the first and second gears in the same mode, and the left valley 713 performs the holding function in the automatic transmission mode train.

Finally, a switch for transmitting the operation of the shift lever 1 as described above to the automatic transmission control device (ECT) as an electric signal will be described. The switch 7 for detecting the select operation of the shift lever 1 is fixed to the retainer 13 and is integrated with the detent cam 71 as shown in detail in FIG. This switch has its operation pin 72 fitted in a groove formed on the rear side of the detent piston accommodating portion of the cross joint 12, and is switched to the left / right position by the rotation of the cross joint 12 with respect to the retainer 13, so that the left and right of the shift lever 1 are switched. Outputs direction stroke signal.

On the other hand, the switch 8 for detecting the shift operation of the shift lever 1 is fixed to the outside of the side plate 32, and its operation pin 82 is fitted to the fork portion of the switch operation arm 611 of the detent lever 61. The upper and lower positions are switched by the rotation of the detent lever 61, and the signal of the front-rear stroke of the shift lever 1 is output.

Next, the operation of this shift device will be described step by step. (1) Range select operation in automatic speed change mode In the "P" range, only the angular position of which is shown in FIG. 2, the retainer 13 is in the most rearward rotation around the rotation center axis X, and the shift lever 1 is in the rotation center axis Y. The left protrusion 133 of the retainer 13 is engaged with the hole 50 of the shift cable lever 5 because it is tilted rightward (shown as "D" range in FIG. 1). At this time, the inhibit pin 41 is also in the inhibit state because it is fitted in the rearmost valley portion of the cam hole 311 (see FIG. 2) of the side plate 31, and the detent piston 127 moves the detent cam 71.
In the valley 713 to the right of, and the gate pin 14 is at the end of the "I" pattern gate.

When the lock ring 45 below the knob 11 is pulled up from this “P” range, the inhibit pin 41 is pulled up and rises to a position where it can cross the cam lobe. Here, pulling the shift lever 1 rearward enables selection of all other ranges. The tilting of the shift lever 1 is impossible because the lateral movement of the pin 14 by the gate is blocked. Shift lever 1 to "R" range position, "N"
When it is pulled rearward through the range position, it reaches the “D” range position, where the gate pin 14 reaches the forefront part of the gate of the “I” pattern, so that the shift lever 1 cannot rotate further backward. . With this operation, retainer 1
The shift cable lever 5 interlocking with 4 also rotates, the displacement thereof is transmitted to the operating mechanism of the manual valve via a cable (not shown), and the range of the hydraulic control device of the automatic transmission is switched. A feeling of moderation in this operation is given by the conventional detent mechanism provided in the operation mechanism of the manual valve on the automatic transmission side.

(2) Transition from automatic speed change mode to manual speed change mode When the shift lever 1 reaches the “D” range position, the gate pin 14 reaches the contact portion between the “I” pattern and the “H” pattern of the gate. It is possible to tilt to the right. To shift to the manual shift mode at this position, the shift lever 1 is tilted to the left. By this tilting operation to the left, the shift lever 1 rotates the retainer 13 counterclockwise. Then,
The inhibit pin 41 disengages from the cam hole 311, the left protrusion 133 of the retainer 13 comes off the shift cable lever 5, and this time, the right protrusion 134 of the retainer 13.
Engages with the retainer guide 613 of the detent lever 61. Therefore, the shift lever 1 and the manual valve are disconnected, and the manual valve is in the manual shift mode in which the manual valve is fixed at the "D" range position. Further, the subsequent forward or backward rotation of the shift lever 1 is accompanied by the rotation of the detent lever 61, and its movement is detected by the switch 8. At this time, the detent piston 127 moves from the valley 713 on the left side of the cam to the valley 711 in the center.
When the shift lever 1 shifts to the
Are positioned in the third and fourth speed trains (hereinafter, this position is referred to as a neutral position).

(3) Manual shift mode select operation When the shift lever 1 is further tilted to the left from the neutral position, the retainer 13 further rotates counterclockwise with respect to the cross joint 12, so the first and second speed select trains are selected. However, since the detent piston 127 moves in the direction of climbing the slope 712 of the cam 71 and the neutral return force is applied to the shift lever 1, the driver feels the same resistance as the operation of the conventional manual transmission. Therefore, when the force in the select direction is released, the shift lever 1 always returns to the neutral position and is held at that position.

(4) Shift operation in manual shift mode When the shift lever 1 is tilted to the left from the neutral position, the detent lever 61 of the protrusion 134 on the right side of the retainer 13 is moved.
Of the retainer guide 613 is maintained. Therefore, the subsequent forward rotation of the shift lever 1 in combination with the position of the operation pin 72 of the switch 7 by the downward movement of the operation pin 82 of the switch 8 causes the first shift in the automatic transmission control device (ECT). The rotation is detected as the second speed, and the backward rotation is similarly detected as the second speed by the upward movement of the operation pin 82 of the switch 8. Regarding the operation of the front and rear detents during these operations, displacement of the engagement position of the detent cam arm 612 with respect to the roller of the detent spring 62 due to the rotation of the detent lever 61 causes a sense of resistance that accompanies climbing over a mountain between valleys. .

The shift to the third speed or the fourth speed is performed by rotating the shift lever 1 forward or backward from the neutral position as it is. This operation is also accompanied by rotation of the detent lever 61, and the first
The switching operation of the switch 8 similar to the shift to the second speed or the second speed occurs. The operation of the front and rear detent mechanism at the time of this shift is also the same as the shift to the first speed or the second speed.

(5) Return to Automatic Shift Mode Return from the manual shift mode to the automatic shift mode is performed by the operation of tilting the shift lever 1 to the right from the neutral position. Since the movement of each member at this time follows the operation at the time of the shift from the automatic shift mode to the manual shift mode in reverse, it is considered to be self-evident, and detailed description thereof will be omitted.

The switch 7 in the manual shift mode,
The detection signal of No. 8 is input to the automatic speed change control device (ECT), the first speed to the fourth speed are identified by the combination of the signals of both switches 7 and 8, and "D" is detected in the normal automatic transmission.
The range is processed in the same manner as the shift signal output according to the vehicle speed and the throttle opening, and is used for controlling the shift solenoid valve.

As described above in detail, in this shift device, the rotation center axes X and Y are set at the middle portion of the shift lever 1 in the longitudinal direction, the length of the shift lever 1 is shortened, and the gate plate 2 is The shift lever 1 is fixed to the lowermost base plate 30. Therefore, it is possible to obtain a refreshing shift feeling that is returned by the wrist. Moreover, by setting the rotation center axis Y above the rotation center axis X, the select stroke is further shortened and the shift feeling is improved. ing.

Further, the side plates 31 and 32 functioning as bearings may be slightly deformed by the fastening of the axial bolts 35 so that the play between the fastened members can be eliminated. , The shift lever 1 and the gate plate 2 to the base plate 30 of the stationary member 3.
When arranged separately from the side plates 31 and 32,
If the rigidity of the side plates 31 and 32 is low, the positions of the shift lever 1 and the gate cannot be accurately held. On the other hand, if the side plates 31 and 32 are unduly increased in rigidity so as not to be deformed, even if the shaft bolt 35 is fastened, a gap is likely to remain between the respective members, which may cause rattling during operation. It Therefore, in this shift device, a rib 310 is formed on one of the side plates 31 to increase its rigidity, and the other side plate 32 has a structure in which it flexes, thereby improving the positional accuracy and preventing backlash. I am letting you. Furthermore, the claws 301 are raised from the base plate 30, and the claws 301 are erected on the back side of the protrusions 21 of the gate plate 2, and the protrusions 21 are reinforced, so that the weight of the gate plate 2 can be reduced by using a plastic material. ing.

Further, when the rotation center axes X and Y are arranged above, in principle, the shift lever 1 and the rotation center axes X and Y are arranged.
However, since it is impossible for the operating member of the inhibit mechanism to further penetrate the rotation center axes X and Y into the shift lever 1 that penetrates inside, the shift lever 1 does not move through the rotation center axes X and Y. Need to be offset to.
In such a case, the inhibit mechanism may be complicated, but in this shift device, the offset direction is set to the side plate 31 side which is a strength member, and the inhibit cam 311 is formed on the plate 31, so that the inhibit mechanism is complicated. The accuracy of the mechanism is maintained while avoiding.

The present invention has been described above in detail based on one embodiment, but the present invention is not limited to the disclosure of the above embodiment, and various details can be obtained within the scope of the matters described in the claims. It is needless to say that the specific configuration of can be changed and implemented.

[Brief description of drawings]

FIG. 1 is a rear view showing a partial cross-section of the entire structure of an embodiment of a shift device for an automatic transmission according to the present invention.

FIG. 2 is a left side view showing a partial cross section of the entire structure of the above embodiment.

FIG. 3 is a plan view showing the overall structure of the above embodiment.

FIG. 4 is an exploded perspective view showing the shift lever of the above-mentioned embodiment and its related parts taken out.

FIG. 5 is an exploded perspective view showing the stationary member of the above-described embodiment and the arrangement of each member thereon.

FIG. 6 is a plan view showing details of the gate plate of the above embodiment.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a front view showing one of the switches of the embodiment and a detent cam integrated with the switch.

[Explanation of symbols]

1 shift lever 2 gate plate 3 stationary members 4 Inhibit mechanism X First rotation center axis Y Second rotation center axis 11 knobs 12 cross joint 13 retainer 14 Gate pin 31 First Side Plate 32 Second Side Plate 41 pin 310 Reinforcing rib 311 cam

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Seki 38 Ikenoue-cho, Takefu City, Fukui Prefecture Aisin AW Industrial Co., Ltd. (72) Inventor Junichi Kurosaki 38 Ikenoue-cho, Takefu City, Fukui Prefecture AW Industrial Co., Ltd. (56) Reference JP-A-7-352224 (JP, A) JP-A-6-323414 (JP, A) JP-A-3-103650 (JP, A) JP-A-61-1 146643 (JP, A) JP-A-61-175714 (JP, A) Actual development 58-102327 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60K 20/00-20 / 08 F16H 59/00-61/12 F16H 61/16-61/36 F16H 63/00-63/48 G05G 1/00-25/04

Claims (6)

(57) [Claims] 1. A stationary member attached to a vehicle body, a shift lever having a knob for operation on the top, a gate plate defining a shift pattern in an automatic shift mode and a manual shift mode, and the shift lever being the gate plate. of the shift device for an automatic transmission for a vehicle and a second rotation center axis of the first rotation center axis and the lateral direction rotatable to allow longitudinal direction rotated along the shift pattern, the gate plate, the stationary When fixed to a member
In addition, at least a part of it is reinforced with the stationary member as a core.
It is, wherein the said knob of the first and second of said shift lever across the rotation axis is disposed lowermost opposite, lowermost end of the shift lever is inserted into the gate of the gate plate, the first The rotation center axis of 2 is larger than the first rotation center axis.
A shift device for an automatic transmission for a vehicle, wherein the shift device is arranged near the knob . 2. The shift device has first and second side plates bearing the first rotation center axis, and the first side plate has a greater strength than the second side plate. The shift device for an automatic transmission for a vehicle according to claim 1. 3. The shift device for an automatic transmission for a vehicle according to claim 2 , wherein the first side plate has a reinforcing rib. 4. The shift device for an automatic transmission for a vehicle according to claim 2 , wherein the shift lever has a pin of an inhibit mechanism, and the first side plate has a cam of the inhibit mechanism. 5. The shift device includes a cross joint rotatably supported about the first and second rotation center axes, and an integral rotation with the cross joint about the first rotation center axis, wherein the second rotation center axis is separated from the cross joint and a rotatable retainer, the shift lever is concatenated claim 4 wherein said retainer is adjacent to the first side plate A shift device for an automatic transmission for a vehicle. 6. The shift device for an automatic transmission for a vehicle according to claim 4 , wherein the gate plate is disposed below a pin of the inhibit mechanism.