JPH0914409A - Shift device for automatic transmission of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the change of friction force due to a change with the lapse of time, by arranging a detent mechanism outside two bearings of a right and left shaft, and inserting wave washers into both the ends of the detent mechanism, moreover a quenching flat washer into a portion wherein these wave washers abut on a nonrotating portion. SOLUTION: This device is provided with a rotation center shaft (right and left shaft) X for making a shift lever 1 rotatable in a lengthwise direction, and a rotation center shaft (lengthwise shaft) Y for rotatable in a right and left direction. Also in this constitution, this device is made switch-adaptable to automatic and manual speed change modes by the rotation around the lengthwise shaft Y of the lever 1, and the respective ranges of the manual speed change stages of the manual speed change mode are made selectable by the rotation around the right and left shaft X. When the manual speed change mode is selected, the lever 1 is kept at an optional shift position by a detent mechanism 6, wherein wave and flat washers are provided on both the ends of a sleeve, to generate slide resistance, to rotation around the right and left shaft of the lever 1, by a resisting means 60.

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 that can be operated in both automatic shift mode and manual shift mode.

[0002]

2. Description of the Related Art As an operating device for an automatic transmission for a vehicle, it has both an "I" pattern in an automatic transmission mode and an "H" pattern in a manual transmission mode.
There is a shift device disclosed in the publication. This shift device
Unlike the shift device in which the manual shift mode is an up-down shift type as disclosed in JP-A-7-32904, when the manual shift mode is selected, the shift lever is held at the shift position of the selected shift speed. There is a need. In addition, it is necessary to clearly inform the driver that the shift lever is in the intended shift position by an operational feeling.
Therefore, in the former shift device, a detent mechanism is provided between the shift lever and the stationary member (swing retainer) of the shift device. The detent mechanism is composed of a detent spring that works with a shift lever and a detent block provided on a stationary member. Then, due to the change in the load when the spring crosses the cam lobe of the block by the movement of the shift lever in the front-rear direction, the driver feels a moderation of operation, and the shift lever is held in the shift position by falling to the cam valley. ing.

[0003]

By the way, the above-mentioned conventional technique in which the manual shift mode is set to the "H" pattern is intended to obtain an operation feeling similar to that of a general manual transmission during a manual shift operation. Therefore, an operation feeling similar to that of the operating device of the manual transmission is desired. However, in the above configuration,
When operating the shift position to the shift position, it is necessary to provide a convex portion of the block in order to hold the shift lever in the shift position.Therefore, this detent mechanism has a clear detent feeling like a general manual transmission. It is difficult to bring out a specific tenacity that is contrary to this in the course of obtaining the gear shift, and the shift feeling in the manual shift mode is not always satisfactory.

Therefore, the first object of the present invention is to provide a shift device for an automatic transmission for a vehicle, in which, in a shift operation in a manual shift mode, the contradictory feelings of clear detent and tenacity are both revealed. To aim.

A second object of the present invention is to provide a shift device for an automatic transmission for a vehicle, which achieves the above tenacity with a simple structure.

Further, the present invention provides a shift device for an automatic transmission for a vehicle, which can improve the durability of the mechanism for producing the tenacity described above and can maintain the initial operation feeling for a long time. The purpose of.

By the way, in the shift device having both the automatic shift mode and the manual shift mode, the stickiness as described above should be avoided in the automatic shift mode because it will impair the operation feeling in the automatic shift mode. I have to. Therefore, a fourth object of the present invention is to provide a shift device for an automatic transmission for a vehicle in which the operation feeling of a shift lever is surely switched in each shift mode.

[0008]

In order to achieve the first object, the present invention provides a shift lever, a first rotation center shaft that allows the shift lever to rotate in the front-rear direction, and a left-right direction rotation. It is possible to switch between the automatic shift mode and the manual shift mode by rotating the second rotation center shaft and the shift lever around the second rotation center shaft.
In a shift device of an automatic transmission for a vehicle capable of selecting a plurality of ranges of an automatic shift mode and a plurality of shift stages of a manual shift mode by rotating about a rotation center axis of the shift lever of the shift lever when the manual shift mode is selected. A detent mechanism that holds the shift lever at the shift position of each shift stage by rotation around the first rotation center axis, and a resistance that generates sliding resistance against rotation of the shift lever around the first rotation center axis. And means.

In order to achieve the second object, according to the present invention, in the above structure, the detent mechanism is
Rotatably supported around the first rotation center axis, supported by a cam rotatable in conjunction with the shift lever and a stationary member of the shift device when the manual shift mode is selected,
A spring elastically contacting the cam, and the resistance means includes a wave washer pressed against at least one side of the cam.

Further, in order to achieve the third object,
According to the present invention, in the above structure, the resistance means includes a quenching flat washer that holds the cam, and the wave washer is disposed between the cam and the quenching flat washer.

In order to achieve the fourth object,
The shift device includes a pair of side plates that form a bearing for the first rotation center shaft, and one of the side plates is provided on the first rotation center shaft. One of the shift plates has a collar, and the collar is sandwiched between the side plates. Two collars sandwiched between a pair of side plates, the detent mechanism and the resistance means are disposed outside the pair of side plates on the first rotation center axis, and either one of them is disposed. The collar has rotatably supported a coupling means for interlocking the detent mechanism with rotation of the shift lever about the first rotation center axis when the manual shift mode is selected, and the other collar has an automatic shift mode selected. At the same time, a coupling mechanism that is interlocked with the shift lever and is coupled to a manual valve of the automatic transmission is rotatably supported.

[0012]

According to the present invention, when the manual shift mode is selected, the detent mechanism allows the shift lever to be held at the shift position of each shift stage, and a clear detent feel is provided during the shift operation. You can Further, since the resistance means exerts sliding resistance on the rotation of the shift lever about the first rotation center axis,
It is possible to give tenacity to the shift operation. Therefore, a shift feeling similar to that of the manual transmission can be obtained.

Further, in the structure according to the second aspect, since the wave washer is pressed against at least one side of the cam on the first rotation center axis, the wave washer slides between the cam and the wave washer which are interlocked with the shift lever. Resistance occurs. That is, in the case of a wave washer, it is elastically deformed by being tightened on the axis, and an urging force is generated by the deformation, and an appropriate sliding resistance is given by the urging force. Then, the magnitude of the sliding resistance can be freely adjusted by controlling the deformation stroke in the axial direction of the wave washer on the first rotation center axis with an appropriate restriction member,
You can adjust the subtle stickiness. However, in the case of a mere flat washer, such compressive deformation does not occur, and the biasing force does not occur, so that it is not possible to produce the sticky feeling as in the case of the wave washer.

Next, in the structure according to the third aspect, since the wave washer is arranged between the cam and the quenching flat washer, abrasion due to sliding between the wave washer and the quenching flat washer is prevented, A change in sliding resistance due to deterioration over time can be reduced.

By the way, the shift device of the present invention has both an automatic shift mode and a manual shift mode, and further, a plurality of ranges in the automatic shift mode are provided by rotation of the shift lever about the first rotation center axis. A plurality of shift speeds in the manual shift mode can be selected. Therefore, when the shift lever is operated when the range is selected in the automatic speed change mode, there is a risk that a moderation feeling and a tenacity feeling in the manual speed change mode may be transmitted. On the contrary, when the shift lever is operated at the time of selecting the shift stage in the manual shift mode, the connecting mechanism for switching the manual valve may move. Therefore, it is necessary to surely separate, on the first rotation center axis, a portion that interlocks with the shift lever, a manual valve coupling mechanism that moves in the automatic shift mode, and a detent mechanism that moves in the manual shift mode. Therefore, in the configuration according to claim 4,
It has two collars, one of which has a collar on the first rotation center axis, and a pair of side plates which sandwich the collar and serve as bearings for the first rotation center axis. Further, one collar is provided with a coupling mechanism that moves in the automatic shift mode, the other collar is provided with a coupling means that is always interlocked with the shift lever, and a detent mechanism that is moved in the manual shift mode is arranged outside the pair of side plates. Therefore, when the automatic shift mode is selected, the coupling mechanism works in conjunction with the shift lever, but the sliding friction on the first rotation center axis is
The detent mechanism does not move because it is blocked by the side plate. Therefore, the moderation feeling in the manual shift mode,
There is no stickiness. When the manual shift mode is selected, the detent mechanism works in conjunction with the shift lever to give a feeling of moderation and tenacity, but sliding friction on the first rotation center axis is
Since it is blocked by the collar brim, the coupling mechanism does not move and the manual valve is fixed. Therefore, it is possible to reliably separate the automatic shift mode and the manual shift mode with a simple structure including a pair of side plates and two collars. Further, the shaft length of the rotation center shaft can be accurately controlled by the two collars.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show the overall structure of an embodiment of the present invention, and FIGS. 4 to 8 show partial structures. In the following description of the embodiments, expressions such as front and rear, left and right, and up and down represent relative positional relationships in the shift device, and do not limit the installation state in the vehicle.

First, a schematic structure will be described. As shown in FIG. 1, this shift device includes a shift lever 1 and a first rotation center shaft (hereinafter, referred to as an embodiment in the present embodiment) that allows the shift lever 1 to rotate in the front-rear direction. Switching between the automatic shift mode and the manual shift mode by rotating the shift lever 1 around the front-rear axis Y and the second rotation center axis (also referred to as the front-rear axis) Y that is rotatable in the left-right direction X. It is possible to rotate a plurality of automatic shift modes (“P”, “R”, “N”, “D”) ranges by rotating around the left and right axes X and a plurality of shift speeds (first to fourth speeds) in the manual shift mode. And are selectable. Then, in the shift device, when the manual shift mode is selected, the shift lever 1 is rotated about the left-right axis X to move the shift lever 1 to each shift speed (first to fourth speeds).
The detent mechanism 6 for holding the shift lever 1 in the shift position and the resistance means 60 for generating sliding resistance against the rotation of the shift lever 1 about the left-right axis X.

As shown in detail in FIG. 5, the detent mechanism 6 is rotatably supported about the left-right axis X, and is rotatable in conjunction with the shift lever 1 when the manual shift mode is selected, and a shift device. The spring 62 supported by the stationary member 3 and elastically contacting the cam 618.
No. 0 has wave washers 616a and 616b that are pressed against both sides of the cam 618, and quenching flat washers 617a and 617b that are pressed against the outside of the wave washers 616a and 616b with the cam 618 sandwiched therebetween.

As shown in detail in FIG. 7, the shift device is
A pair of side plates 31, 32 forming bearings for the left and right axes X
And arranged on the left-right axis X, one of which is provided with a collar 531,
A pair of side plates 31, 3 with the collar 531 interposed therebetween
The two detent mechanism 6 and the resistance means 60 have two collars 53 and 126 sandwiched between the two side plates 31, on the left-right axis X, as shown in FIG.
A coupling means 134, which is arranged outside 32, is rotatably supported on one of the collars 126 (see FIG. 7) so as to interlock the detent mechanism 6 with the rotation of the shift lever 1 about the left-right axis X when the manual shift mode is selected. The other collar 53 is linked to the shift lever 1 when the automatic shift mode is selected,
A coupling mechanism 5 that is coupled to a manual valve (not shown) of the automatic transmission is rotatably supported.

The detailed structure of each part will be described below. First, as shown in FIG. 4, the shift lever 1 is a hollow stem 10 having a slightly expanded lower portion, as shown in detail in FIG.
And a knob assembly 11 attached to the top of the knob assembly 11 and a channel-shaped retainer 13 welded and fixed to the lower side of the knob assembly 11 and having a gate pin 14 implanted therein. The rod 42 of the inhibit mechanism 4 is provided in the hollow portion of the stem 10.
A block supporting the pin 41 of the inhibit mechanism 4 is fixed to the lower end of the rod 42.
1 is a pair of vertically elongated holes 1 formed in the large diameter portion of the stem 10.
A pair of rollers 411 protruding left and right through 01 and fitted on the outer periphery of the pin 41 are guided by the long holes 101 and are vertically movable. An outer peripheral thread is formed on the upper end of the rod 42, and an inner peripheral thread is formed on the thread.
3 is screwed in. The knob assembly 11 includes the stem 10
Is fitted to the outer periphery of the upper part of the
8 (see FIG. 2). In the tubular portion extending downward of the knob assembly 11, there is formed a sliding groove 111 which extends in the vertical direction and whose lower end is opened.
The connecting pin 44 fitted on the upper part of the sliding groove 111
Through to the outside, and the extension is fitted into the 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 assembly 11, and the force of the spring 46 pushes the lock ring 45 and the rod 42 downward so that the automatic transmission shifts. The inhibit pin 41 is pressed against the inhibit cam 311 surface (see FIG. 2) in the mode. In the drawing, reference numeral 47 is arranged so as to be fitted to the outer periphery of the extension portion of the knob assembly 11 and cover the screw 48,
The knob stopper which controls the stroke of the lock ring 45 is shown.

Next, the retainer 13 is constructed as a channel-shaped member whose upper side and left and right sides are opened. The upper side of the vertical plate on the rear side extends slightly to the left, and the stem of the shift lever 1 is extended from the rear side there. 10 is welded and integrated. The bottom plate extends to the left and right, and the narrow plate-shaped projection 133 that projects to the left constitutes a means for engaging and disengaging from the shift cable lever 5, which will be described later, which constitutes a coupling mechanism. The projections 134 also form a coupling means with the detent lever 61 that constitutes the detent mechanism 6 for the shift operation of the shift lever 1 in the manual shift mode described later. Shaft holes 131, 132 of the front-rear axis Y aligned with each other are formed above the front and rear vertical plates of the retainer 13.

A block-shaped cross joint 12 is disposed inside the retainer 13, and the joint 12 has a shaft hole 121 of a front-rear axis Y which penetrates the upper portion thereof in the front-rear direction.
And a shaft hole 122 for the left-right axis X penetrating the lower part to the left and right is formed. Both shaft holes 121, 122 of the cross joint 12
At both ends of the bush 123a, 123b, 124a, 1
24b is fitted, a collar 125 is fitted on the inner circumference of the bushes 123a, 123b, and a collar 126 is fitted on the inner circumference of the bushes 124a, 124b. 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 piston 127
A detent cam 71 that cooperates with is integrated with a select detection switch 7 to be described later, and is fixedly arranged on the inner front portion 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.

As shown in FIG. 5, the stationary member 3 for supporting the shift lever 1 and its related mechanism includes a dish-shaped base plate 30, left and right side plates 31 and 32 welded to the base plate 30, and front and rear members. And cover plate mounting arms 33 and 34. Both side plates 31 and 32 basically perform a rotation supporting function as bearings of the shift lever 1, and bolts 35 that form the left-right axis X in holes 312 and 322 formed in alignment with the upper portions thereof. By passing the bolt 35 through the collar 126 of the cross joint 12, 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. Side plate 3
1 is thicker than the other side plate 32, and the rib 310 of the side plate 31 has a front side curved outwardly extending near the front edge of the side plate 31 and is a rear side rib. Is a curved edge in which the rear edge of the side plate 31 is bent outward at a right angle, so that a sufficiently larger rigidity strength than that of the side plate 32 is obtained. 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 attached to the base plate 30 by riveting four points near the right side plate 32 on the base plate 30 sandwiched between the side plates 31 and 32. 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. In the portion surrounding the gate of the "I" pattern, the thickness is increased rearward so that the gate pin 14 does not come off even when the shift lever 1 rotates around the left-right axis X.

As shown in FIG. 5, a shift cable lever 5 is also arranged on the left and right axis X. This lever 5
It 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. The cable block 51 is fixed inside, and the square hole 50 is formed slightly above it. This square hole 50 is used for the retainer 1.
The protrusion 133 protruding leftward from the lower part of 3 is disengaged. A pair of left and right bushes 52 are fitted in the hollow shaft integrally welded above the shift cable lever 5, and a collar 53 with a collar is fitted on the inner circumference of the bush 52. Although not shown in the figure, an end of the cable is inserted into and fixed to the cable block 51, and the cable is guided to the operation mechanism of the manual valve through the hole of the support portion 302 formed to project forward of the base plate 30. It is burned and linked to it.

A detent mechanism 6 for shifting operation is provided in alignment with the left-right axis X. This mechanism 6
Is a detent lever 61 that is disposed outside the right side plate 32 and is rotatably supported by a bolt 35, and a detent spring 62 that is a leaf spring fixed to the side plate 32 via a bracket 323. It consists of 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 612.
And a retainer guide 613 is screwed and fixed in the square hole of the sickle-shaped bent portion. A collar 614 and a bush 615 are doubly fitted to the inner periphery of the sleeve portion, and wave washer 616a,
616b and quenching flat washers 617a and 617b are provided respectively. Sickle-shaped detent cam arm 61
On the outer peripheral surface of No. 2, a cam 618 having three troughs whose center is deeper than those on both sides is formed. The detent spring 62 has a roller 6 at its fork-shaped tip.
3, the roller 63 is engaged with the cam 618,
The base end portion is screwed to a bracket 323 that extends outward from the side plate 32 via the spacer 64.

As shown in FIG. 1, the shift cable lever 5 is provided on the side plate 31 side and the cross joint 12 is provided on the side plate 32 side on the right and left axis X, and the side plate 32 is sandwiched therebetween to the outside. A detent lever 61 is provided, and these are supported by both side plates 31 and 32 by tightening one bolt 35. However, as shown in an exploded view in which only a relevant portion is enlarged in FIG. Since the rigidity of the side plate 31 is made sufficiently larger than the rigidity of the side plate 32 when the nut is tightened on the side plate 31 side through the detent lever 61 side, the side plate 32 is urged by the axial tightening force. The collar 5 with a collar that flexes and rotatably supports the shift cable lever 5 via the bushes 52a and 52b. , Collar 126 which supports the cross joint 12 rotatably through a bush 124a, 124b, the side plate 32 and the detent lever 6
All the collars 614 that rotatably support 1 through the bush 615 are attracted to the side plate 31 side and positioned by abutting each other in the axial direction. Then, the shift cable lever 5 and the cross joint 12
Are separated from each other by the collar 531 of the collar 53 with collars, and the bushes 52b and the bushes 124a are not in direct contact with each other, and it is ensured that no rotation occurs. With this configuration, when assembling, each member is accurately positioned by removing play due to contact of bushes, collars, etc. fitted to each member,
Furthermore, rattling during operation after assembly is substantially completely prevented.

On the other hand, also on the front-rear axis Y, as shown in FIG. 4, the retainer 13 is tightened with the bolt 36 and the nut via the bush, the collar and the like to the cross joint 12 positioned without play as described above. Therefore, the same accurate positioning is performed.

The detent mechanism for the select operation is composed of 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. As shown in FIG. 8 in detail, the detent cam 71 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, a slope 712 connected to the left (right in FIG. 8 when viewed from the front) and a right (left in FIG. 8) valley 713 are formed, and the central valley 711 is In the manual shift mode, the select positions of the third and fourth speed trains are held, the slope 712 provides a neutral return action from the first and second speed trains in the same mode, and the valley 713 on the left side is automatic. Performs a holding function in the shift mode sequence.

Finally, a switch for transmitting the operation of the shift lever 1 as described above to the automatic shift 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. In this switch, the operation pin 72 is fitted in the groove formed on the rear side of the detent piston accommodating portion of the cross joint 12, and the retainer 1
3 is rotated with respect to the cross joint 12 to be switched to the left / right position, and a signal of the left / right stroke of the shift lever 1 is output.

On the other hand, the switch 8 for detecting the shift operation of the shift lever 1 is fixed to the outer side of the side plate 32 as shown in FIG. 5, and its operation pin 82 is the switch operation arm 611 of the detent lever 61. It is fitted to the fork portion of the shift lever 1 and is switched to the vertical position by the rotation of the detent lever 61, and a signal of the stroke of the shift lever 1 in the front-rear direction 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. Right tilt (Fig. 1
Retainer 13 because it is in the "D" range)
The left protrusion 133 is engaged with the hole 50 of the shift cable lever 5. At this time, the inhibit pin 41 is also in the inhibit state by fitting in the rearmost valley portion of the cam hole 311 (see FIG. 2) of the side plate 31, and the detent piston 127 is in the valley 713 on the right side of the detent cam 71. Yes, the gate pin 14 is at the end of the "I" pattern gate.

When the lock ring 45 below the knob assembly 11 is pulled up from this "P" range, the inhibit pin 4
1 is pulled up and rises to a position where it can cross the cam peak. 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,
When pulled to the rearmost position after passing through the “N” range position, the “D” range position is reached, where the gate pin 14 reaches the forefront of the gate of the “I” pattern, so that the shift lever 1 rotates further backward. Will not be possible. By this operation, the shift cable lever 5 that works with the retainer 13 also rotates around the collar 53 that does not rotate under the free rotation of the bushes 52a and 52b, and the displacement is transmitted to the manual valve operating mechanism via a cable (not shown). The range of the hydraulic control device of the automatic transmission is changed. The moderation sensation in this operation can be imparted comfortably by the conventional detent mechanism provided in the operation mechanism of the manual valve on the automatic transmission side.

(2) Transition from the automatic shift mode to the manual shift 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 operation of tilting 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 hole of 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 right side of the cam to the valley 7 in the center.
When the shift lever 1 is shifted to 11, the shift lever 1 is given a moderation feel, and is then fitted into the central valley 711, whereby the shift lever 1 is positioned in the 3rd and 4th speed trains (hereinafter, this position is neutral). Position).

(3) Select operation in manual shift mode 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 that 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 resistance due to the spring load similar to the operation of the conventional manual transmission. Reportedly. Therefore, when the force in the select direction is released, the shift lever 1
Always returns to and is held in its neutral 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.
Engagement of the retainer guide 613 with the hole is maintained. Therefore, the subsequent forward rotation of the shift lever 1 is
By the downward movement of the operation pin 82 of the switch 8, in combination with the position of the operation pin 72 of the switch 7, the automatic transmission control (ECT) detects the first speed,
The backward rotation is similarly detected as the second speed by the upward movement of the operation pin 82 of the switch 8 in the same manner. 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. . A feature of this shift device is that, during a shift operation, a pair of wave washers 616 that are sandwiched on both sides of the detent lever 61 and fastened with bolts 35 and that rotate integrally with the detent lever 61 do not rotate adjacent to them. The hardened flat washer 617, which is pressed to the side, rotates and slides in a lubricated state, but the sliding resistance at that time is very similar to the sliding resistance of the plunger during the shift operation of the conventional manual transmission. It creates a feeling of resistance with viscous resistance. On the other hand, cross joint 12
Is a bush 124a around the collar 126 that does not rotate,
It rotates under the free rotation of 124b.

The shift to the third speed or the fourth speed is performed by rotating the shift lever 1 forward or backward as it is from the neutral position. This operation also involves the rotation of the detent lever 61, and the switching operation of the switch 8 similar to the shift to the first 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 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.

Switches 7 and 8 in the above manual shift mode
Detection signal is input to the automatic shift 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 a 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 detent mechanism 6 is arranged outside the two bearings of the left and right shafts, and the wave washers 616a and 616b are provided at both ends thereof.
Further, quenching flat washers 617a and 617b are inserted in the portions where these contact with the non-rotating portion, and the movable members in the manual shift mode and the automatic shift mode are completely divided. A sliding frictional force between the washers 616a, 616b and the non-rotating portion can be obtained, and the hardened flat washers 617a, 61
By inserting 7b, wave washers 616a, 616
It is possible to reduce the change in frictional force due to the change with time by preventing the wear of the portion where b comes into contact and slides. Further, the structure is simple and cost reduction can be achieved. Further, in the above embodiment, the shift cable lever 5 for the automatic shift mode on the left and right axis X, the detent mechanism 6 for the manual shift mode, and the cross joint 12 for both modes are used.
Since the element is separated from the collar 531 of the collar 53 by one of the bearings, unless the left projection 133 and the right projection 134 connect them, the lever 5 that works with the manual valve for the automatic speed change mode is also the detent for the manual speed change. The lever 61 is also held without being rotated, and their malfunctions are prevented.

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 the drawings]

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

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

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 embodiment and its related parts.

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 embodiment.

FIG. 7 is an exploded perspective view showing the arrangement of the support members on the first rotation shaft of the above embodiment.

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

[Explanation of symbols]

 X left and right axis (first rotation center axis) Y front and rear axis (second rotation center axis) 1 shift lever 3 stationary member 5 shift cable lever (coupling mechanism) 6 detent mechanism 31, 32 side plate 53 collar 60 resistance means 62 Spring 126 Collar 134 Connection means 531 Collar 616 Wave washer 617 Hardened flat washer 618 Cam

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Akihiro Seki 38 Ikenoue-cho, Takefu-shi, Fukui Prefecture Aisin AW Industrial Co., Ltd. (72) Inventor Miyoshi 38 Ikenoue-cho, Takefu-shi, Fukui Aisin A. W Industry Co., Ltd.

Claims (4)

[Claims] 1. A shift lever, a first rotation center shaft that allows the shift lever to rotate in the front-rear direction and a second rotation center shaft that allows the shift lever to rotate in the left-right direction, and a second rotation center shaft of the shift lever. It is possible to switch between the automatic shift mode and the manual shift mode by rotating around, and it is possible to select a plurality of ranges of the automatic shift mode and a plurality of shift stages of the manual shift mode by rotating at least about the first rotation center axis. In a shift device for an automatic transmission for a vehicle as described above, when a manual shift mode is selected, a detent mechanism that holds the shift lever at a shift position of each shift stage by rotating the shift lever around a first rotation center axis, Resistance means for generating sliding resistance against rotation of the shift lever about the first rotation center axis. Winding device. 2. The detent mechanism is rotatably supported about the first rotation center axis, and is rotatable in association with the shift lever when a manual shift mode is selected,
The automatic transmission for a vehicle according to claim 1, further comprising a spring supported by a stationary member of the shift device and elastically contacting the cam, and the resistance means having a wave washer pressed against at least one side of the cam. Shift device. 3. The automatic gear shift for a vehicle according to claim 2, wherein the resistance means has a quenching flat washer that holds the cam, and the wave washer is disposed between the cam and the quenching flat washer. Shift device. 4. The shift device includes a pair of side plates that form bearings for the first rotation center shaft, and one of the side plates is disposed on the first rotation center shaft, and one of the side plates has a collar. Two collars sandwiched between the pair of side plates, and the detent mechanism and the resistance means are disposed outside the pair of side plates on the first rotation center axis. , One of the collars is rotatably supported by a coupling means for interlocking the detent mechanism with rotation of the shift lever about the first rotation center axis when the manual shift mode is selected, and the other collar is rotatably supported. The shift device for an automatic transmission for a vehicle according to claim 1, wherein a coupling mechanism that is interlocked with the shift lever and is coupled to a manual valve of the automatic transmission is rotatably supported when the automatic transmission mode is selected.