JPH06331009A - Shift operating device of automatic transmission - Google Patents

Abstract

PURPOSE:To shift an automatic transmission by detecting a shift position selected by means of shift operation electrically, and also obtain shift locking condition under prescribed condition certainly by a simple structure. CONSTITUTION:Shift positions of (P) and (R) are selected by moving an operating knob 22 in axial direction. A shaft 52 is connected to the operating knob 22. A rock plate 108 is arranged on the detent pin 104 of the shaft 52 respondently, and it is moved detachably by a solenoid. The engaging groove 110 of the rock plate 108 is engaged with the detent pin 104, and it is engaged in a prescribed shift position. It is thus possible to prevent moving of the shaft 52, namely, moving of the operating knob 22 so as to obtain shift locking condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift operating device used for an automatic transmission of a vehicle.

[0002]

2. Description of the Related Art As a device for shifting an automatic transmission of a vehicle, it is arranged on the floor of the vehicle and is connected to the automatic transmission, and the automatic transmission is mechanically shifted by selecting a lever. A shift lever device is generally used, but recently, it is arranged near the steering wheel, electrically detects the shift position selected by the shift operation, and shifts the automatic transmission based on this detection signal. An operating device having a configuration is considered.

This kind of shift operating device for an automatic transmission is provided with an operating knob for performing a shift operation and a switch for detecting a shift position selected by the operating knob. The shift position of the operation knob corresponds to the P shift range, R shift range, N shift range, or D shift range of the automatic transmission. The shift position is detected by the switch and the automatic shift is performed based on the detection signal. It is a configuration for shifting the machine.

By the way, in such a shift operation device for an automatic transmission, it is not preferable that the automatic transmission can shift indefinitely regardless of the running state of the vehicle. Therefore, it is possible to shift only under a specific condition. A shift lock mechanism is required.

In this case, the detection signal of the switch operated by the operation of the operation knob and the condition such as the running state of the vehicle set in a specific shift range are judged by a computer or the like, and the operation knob is operated under the specific condition. Although it may be possible to configure the automatic transmission so that it does not shift regardless of the operation (i.e., the operation of the switch), the control device and its software are complicated and expensive.

[0006]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention not only can electrically detect the shift position selected by the shift operation and shift the automatic transmission based on this detection signal, but also can simplify the automatic transmission. An object of the present invention is to obtain a shift operating device for an automatic transmission that can be reliably put into a shift lock state under a predetermined condition due to its structure.

[0007]

A shift operating device for an automatic transmission according to the present invention is used in an automatic transmission having a P shift range, an R shift range, an N shift range, and one or more D shift ranges. In the shift operation device described above, the shift operation device is provided so as to be rotatable and axially movable with respect to the axis line of the substantially cylindrical body, and is rotated to a shift position provided corresponding to the N shift range and the D shift range. And the P shift range and R
An operating knob that is axially moved to a shift position provided corresponding to a shift range and is selectively operated, a switch unit that detects the selected shift position of the operating knob, and an arrangement is provided along the axis of the main body. And a shaft that is connected to the operation knob and that interlocks with the movement of the operation knob in the axial direction, and is disposed so as to be engageable with and disengageable from the shaft,
In the engaged state, a lock plate that blocks movement of the shaft in the axial direction, and a lock plate that is connected to the lock plate and is in a stopped state when the operation knob is selected in the P shift range so that the lock plate is When the lock plate is engaged with the shaft and operated by a predetermined brake operation to disengage the lock plate from the shaft, and when the operation knob is selected to the N shift range, the lock plate is operated according to the N shift range. A solenoid that operates at a predetermined vehicle speed or less set by the above to disengage the lock plate from the shaft and is stopped at a predetermined vehicle speed or higher to bring the lock plate into a state of being engaged with the shaft, The lock plate is connected to the lock plate regardless of the operation of the solenoid. It is characterized by a with a, and Rerizunobu capable of being released from the shaft.

[0008]

In the shift operating device of the automatic transmission having the above structure,
By rotating the operation knob, a shift position provided corresponding to the N shift range or the D shift range is selected, and this is detected by the switch portion, and the automatic transmission is shifted. Further, by moving the operation knob in the axial direction, a shift position provided corresponding to the P shift range or the R shift range is selected, and this is detected by the switch portion, and the automatic transmission is shifted.

Here, in a specific shift range,
The solenoid operates according to the individually set conditions.

That is, when the operation knob is selected to the P shift range, the solenoid is stopped by this. Therefore, in this state, the lock plate engages with the shaft to prevent axial movement of the shaft. Therefore, the operation knob is prevented from moving in the axial direction, that is, moving to another shift range, and is in the shift lock state. Further, when a predetermined brake operation is performed in this state, the solenoid operates and the lock plate is disengaged from the shaft. As a result, the shaft can be moved in the axial direction, and the operation knob can be shifted again.

As described above, when the operation knob is selected in the P shift range, a so-called P range shift lock is provided in which the shift operation of the operation knob is blocked unless a predetermined brake operation is performed.

On the other hand, when the operating knob is selected to the N shift range, the solenoid operates at a speed equal to or lower than the predetermined vehicle speed set according to the N shift range. Therefore, in this state, the lock plate is disengaged from the shaft, and the shaft can move in the axial direction. For this reason,
The operation knob can be rotated and moved in the axial direction, and can be shifted to each shift range.
On the other hand, the solenoid is stopped at a speed equal to or higher than the predetermined vehicle speed set according to the N shift range. Therefore, in this state, the lock plate engages with the shaft to prevent axial movement of the shaft. Therefore, the operation knob moves in the axial direction, that is, the R shift range and P
Movement to the shift range is blocked, and the shift lock state is set.

As described above, when the operation knob is selected to the N shift range, the so-called R operation in which the operation knob is prevented from shifting to the R shift range and the P shift range unless the speed reaches a predetermined vehicle speed or less. Become an inhibit.

As described above, not only the shift position selected by the shift operation of the operation knob can be detected by the switch portion to shift the automatic transmission, but also the solenoid can be operated according to the conditions set in a specific shift range. By operating, the lock plate can prevent axial movement of the shaft, that is, the operation knob, and the simple structure of the single solenoid and lock plate allows
The shift lock state can be established under a predetermined condition.

Further, when the release knob is operated,
The lock plate is disengaged from the shaft regardless of the actuation of the solenoid. Therefore, even when the power supply is cut off, the shaft can be moved in the axial direction, that is, the operation knob can be operated, which is also effective for maintenance work.

[0016]

1 is a front view of a shift operating device 10 for an automatic transmission according to the present invention, and FIG. 2 is a left side view of the shift operating device 10. 3 is a sectional view of the shift operating device 10 taken along line 3-3 of FIG. 1, and FIG. 4 is a sectional view of the shift operating device 10 taken along line 4-4 of FIG. It is shown. Further, FIGS. 5 and 6 show exploded perspective views of the shift operating device 10. 5 and 6, some of the parts are duplicated.

The shift operating device 10 is used in an automatic transmission having an R shift range, a P shift range, an N shift range, a D shift range, a 2 shift range, and an L shift range.

The shift operating device 10 has a substantially cylindrical body 1
Equipped with 2. The main body 12 is fixed to the substrate 14 and is arranged near a steering wheel (not shown) of the vehicle. A pipe 16 is fixed to the substrate 14 along the axis of the main body 12. Here, the shift operating device 10 includes an operating unit 20, a switch unit 80, and a shift lock unit 100. Each part will be described in order below.

In the operation section 20, an operation knob 22 is arranged at the tip of the main body 12. The operation knob 22 is formed in a substantially cylindrical shape corresponding to the main body 12, and movably enters into the guide groove 18 of the main body 12. That is, the operation knob 22 overlaps with the distal end portion of the main body 12, and is rotatable with respect to the main body 12 around the axis and movable along the axis.

A holder 24 is arranged inside the operation knob 22 (the tip of the main body 12). The holder 24 is a block member having a substantially cylindrical shape, and is located corresponding to the tip of the main body 12. The holder 24 has a through hole 26 at its center.
Is formed in the through hole 26, and the pipe 16 is
, And is further connected integrally with an arm portion 28 extending from the operation knob 22. As a result, the holder 24 always rotates integrally with the operation knob 22 (the pipe 1
6) and axially (along pipe 16).

A patterned guide groove 30 is formed on the peripheral surface of the holder 24. In the guide groove 30, the main body 12
The pin 32 is fixed and protrudes inward from the tip of the pin. Thereby, the holder 24, that is, the operation knob 22 is configured to be rotatable and axially movable within the guide groove 30 within a range in which the pin 32 can be moved.

Here, the shift operation pattern of the operation knob 22 is "P", "R", "N", "D" of the automatic transmission.
The guide groove 30 of the holder 24 is configured as shown in FIG. 1 corresponding to each shift range of “2” and “L”.
Are formed corresponding to the shift operation pattern of the operation knob 22. That is, the shift operation in the direction of arrow A in FIG. 1 is performed by rotating the operation knob 22 (holder 24),
The shift operation in the direction of arrow B in FIG.
The guide groove 30 is provided by the axial movement of 4) and serves to limit the rotation and axial movement of the holder 24, that is, the operation knob 22.

The holder 24 also includes a pair of pieces 34.
Is built in. Each piece 34 is housed together with a spring 38 in a housing hole 36 formed in the holder 24, and is always biased in a protruding direction.

Between the holder 24 and the tip of the main body 12, a pair of click mounts 40 are arranged corresponding to the pieces 34. The click mount 40 is formed in a gutter shape and is fixed to the inner peripheral surface of the main body 12, and an uneven portion 42 is formed on the inner peripheral wall thereof along the axial direction of the main body 12. The uneven portion 42 corresponds to the axial movement of the operation knob 22 (holder 24) described above (shift operation movement in the direction of arrow B in FIGS. 1 and 5), and the piece 3
4 passes over the uneven portion 42, so that the holder 2
4, that is, the operation knob 22 is moved in the axial direction with moderation.

The click mount 40 has a retracting portion 44 formed in the vicinity of the uneven portion 42.
It is configured such that the piece 34 does not move in the retreat portion 44 and the rotation of the operation knob 22 (holder 24) is not obstructed when the 2 (holder 24) rotates later.

A fitting groove 46 is formed in the center of the holder 24.
Are formed. As shown in FIG. 7, the fitting groove 46 includes a first groove 48, a second groove 50, and an inclined surface 49 that connects them.
And a pin 54 of the shaft 52 slidably accommodated in the pipe 16 is inserted in the fitting groove 46. here,
The pattern shape of the fitting groove 46 (first groove 48, second groove 50) is “R”, “P”, “N” of the operation knob 22,
It is formed corresponding to the shift operation patterns of "D", "2", and "L". That is, the first groove 48 corresponds to each shift position of "R", "P", "N", "D", "2", and when the operation knob 22 is selected to these shift positions. The pin 54 is positioned, while the second groove 50 corresponds to the “L” shift position, and the operation knob 22 is changed from the “2” shift position to the “L” shift position. When the pin 54 is moved, the pin 54 can be relatively moved from the first groove 48 to the second groove 50. That is, the fitting groove 46 is provided with “R”, “P”, “N”,
Between the "D", "2", and "L" shift positions, the holder 24 (operation knob 22) with respect to the shaft 52.
This is to enable relative rotation of the.

On the other hand, an arm 56 extends to the rear portion of the holder 24 (on the side opposite to the operation knob 22), and its tip reaches a switch portion 80 described later. A display pin 58 is fixed to the tip of the arm 56. Further, a pair of fitting grooves 60 is formed in the rear portion of the holder 24.
The fitting groove 60 is formed parallel to the axis of the holder 24, and the arm portion 64 of the rotor 62, which will be described in detail later, is inserted therein.

A rotor 62 is arranged on the side of the holder 24. The rotor 62 is formed in a substantially disc shape, is rotatably attached to the outer periphery of the pipe 16 and is prevented from coming off by the C ring 63 (that is, the rotor 62 does not move in the axial direction with respect to the pipe 16). It is held in a state where it is blocked and only rotatable.) Rotor 62
On the side wall of the holder 24 side, a pair of arm portions 64 are formed to project. The arm 64 is slidably inserted into the fitting groove 60 of the holder 24. Thereby, the holder 24 is movable relative to the rotor 62 only along the axial direction, and is integrally rotated around the axial line.

The rotor 62 has a pair of rollers 66 incorporated therein. Each roller 66 includes a roller holder 69 and a spring 70 in an accommodating portion 68 formed in the rotor 62.
It is housed together with it and is always biased in a protruding direction.

A click mount 72 is provided between the rotor 62 and the tip of the main body 12, corresponding to the roller 66.
Are arranged. The click mount 72 is formed in a ring shape and is fixed to the inner peripheral surface of the main body 12, and further, on the inner peripheral wall thereof, a pair of uneven portions 74 is formed along the circumferential direction of the main body 12. The concave-convex portion 74 rotates the operation knob 22 (holder 24) described above (see FIG. 1 and FIG. 5A).
The roller 66 rides over the uneven portion 74, so that the holder 24, that is, the operation knob 22 can be rotated with a moderation.

As described above, in the operation section 20, the operation knob 22 is provided so as to be rotatable and axially movable with respect to the axis of the main body 12 (pipe 16), and the above-mentioned "N" or "D".
Is rotated to a shift position provided corresponding to the shift range and is selected, and is axially moved to a shift position provided corresponding to the "P" or "R" shift range to be selected. In addition, these movements are performed by the holder 24.
The configuration is performed with moderation by the (piece 34) and the rotor 62 (roller 66).

A switch section 80 is arranged beside the operation section 20. In the switch part 80, the contact plate 82 is fixed to the rear wall of the rotor 62, and
A printed circuit board 84 is arranged so as to face the contact plate 82. A contact 86 extending toward the printed circuit board 84 is formed on the contact plate 82, and the contact 86 is in contact with the printed circuit board 84.
Pattern (ring) on the printed circuit board 84
Conductive contact surfaces are formed in a circular shape, and the contact position of the contact 86 is changed, so that the contact plate 82
That is, the rotational position of the rotor 62 can be electrically detected. That is, the rotation position of the operation knob 22 that rotates around the axis along with the rotor 62, in other words, the operation knob 22 of the shift positions provided corresponding to the above-described “N” and “D” shift ranges. The selected position can be detected.

The printed circuit board 84 is electrically connected to the automatic transmission through a control device (not shown), and shifts the automatic transmission based on the detection signal.

In this case, since the "N" shift position and the "P" shift position are at the same position in the rotation direction (around the axis) of the operation knob 22, the "P" shift position cannot be detected. This is not done by the contact plate 82 and the printed circuit board 84.
This detection is performed by the switch 148.

A display window 88 is provided on the side surface of the main body 12 corresponding to the switch section 80, and the shift operation pattern is displayed. Facing this display window 88,
The display pin 58 fixed to the tip of the arm 56 of the holder 24 is located. As a result, the selected shift position of the holder 24, that is, the operation knob 22 is displayed in the display window 88.
The configuration is shown in.

An LED unit 90 and a light guide 92 are arranged in the switch section 80, and the display window 8
8 can be illuminated from the inside.

A shift lock portion 100 is arranged beside the switch portion 80. In the shift lock unit 100,
A holding block 170 is arranged. Holding block 1
A through hole 172 is formed at 70 in correspondence with the pipe 16, and the pipe 16 penetrates through the through hole 172. Further, a fixing hole 174 is formed in the holding block 170, and the support shaft 120 is fixed in a protruding state. Further, a fixing hole 176 is formed in the holding block 170, and the support shaft 142 is fixed in a protruding state.

The other end of the shaft 52 housed in the pipe 16 and connected to the holder 24 via the pin 54 reaches the end of the pipe 16 penetrating the through hole 172 of the holding block 170. There is. Further, the spring 102 is arranged in the pipe 16 between the shaft 52 and the substrate 14, and always urges the shaft 52 toward the operation knob 22. The urging force of the spring 102 is smaller than the force of the above-described piece 34 over the uneven portion 42 of the click mount 40. In other words, the urging force of the spring 102 prevents the holder 24 (operation knob 22) from moving. It is set.

A detent pin 104 is fixed to the other end of the shaft 52 and protrudes to the outside from an elongated hole 106 formed in the pipe 16.

The lock plate 10 is provided on the side of the pipe 16 (long hole 106) in correspondence with the detent pin 104.
8 are arranged. The lock plate 108 has a substantially rectangular plate shape, and is arranged so as to be movable in a direction in which it comes in contact with and separates from the detent pin 104 (long hole 106). Lock plate 1
The U-shaped engaging groove 110 is formed on the side of the 08 that faces the detent pin 104.
4 and the lock plate 108 face each other, the lock groove 108 moves to engage the engagement groove 110.
The detent pin 104 can be fitted inside, and further,
When the detent pin 104 moves to the side closest to the substrate 14 (the operation knob 22 is selected in the “P” shift range), the lock plate 108 moves closer to the periphery of the lock plate 108 and the long hole 106. The detent pin 104 can be sandwiched between the wall and the wall. With the detent pin 104 fitted in the engaging groove 110,
In addition, in the state where the detent pin 104 is sandwiched between the lock plate 108 and the peripheral wall of the elongated hole 106, the shaft 52 is prevented from moving in the axial direction.

A connecting groove 112 is formed on the side of the lock plate 108, and a lever 114 is connected to the connecting groove 112.

The lever 114 is formed in a generally L shape by the arm 116 and the arm 118,
The central portion of the support shaft 1 fixed to the holding block 170
The arm 116 and the arm 118 are pivotally supported by the armature 20 so that they can pivot. A connecting portion 124 having a shaft 122 is formed at the tip of one arm 116, and the connecting portion 124 (shaft 122) is inserted into the connecting groove 112 of the lock plate 108 and is connected thereto.
Therefore, when the lever 114 (arm 116) rotates, the lock plate 108 is moved to the detent pin 1.
04 (oblong hole 106) is configured to move toward and away from.

On the other hand, the other arm 118 of the lever 114
A connecting portion 128 having a fitting groove 126 is formed at the tip of the connecting portion 128 (fitting groove 126).
A pin 134 fixed to the plunger 132 of the solenoid 130 is inserted and connected. Solenoid 130
Are fixed in the housing portion 178 of the holding block 170.

When the solenoid 130 is energized, the plunger 1
32 is sucked, and the plunger 132 is pulled out by the urging force of the return spring 136 that is mounted on the plunger 132 when the power is not supplied. When the solenoid 130 is not energized, the lock plate 108 engages with the detent pin 104 (the long hole 106).
The dimensions of each part are set so as to reach. When the solenoid 130 is energized, by pulling the plunger 132 against the urging force of the return spring 136, the arm 118 is pulled, the lever 114 rotates around the support shaft 120, and the lock plate 108 detents. It is configured to be separated from the pin 104 (long hole 106).

The solenoid 130 is adapted to be energized and deenergized by electrical control according to the shift position of the operation knob 22 and the running state of the vehicle. Specifically, when the operation knob 22 is selected to the "P" shift position, it is normally de-energized, and energized and excited only when the brake is operated. In addition, the operation knob 2
When 2 is selected in each of the shift positions of “N”, “D”, “2”, and “L”, the vehicle is in the non-energized state in the traveling state of medium speed or higher, and the vehicle travels in the low speed. It is energized and excited only when it is in a state or stopped.

When the operation knob 22 is selected at each of the shift positions of "D", "2", and "L", energization is excited even when the vehicle is running at a low speed or stopped. So that the energization is excited only after being changed to the “N” shift position without changing, that is, the operation knob 22 is shifted from the “N” shift position to the “D”, “2”, and “L” shifts. When the position is changed, even if the vehicle is running at a low speed or stopped, the energization excitation is canceled by the shift position detection signal of "N" or the like.

A stopper 138 is arranged near the lock plate 108. The stopper 138 is made of rubber and abuts against the lock plate 108 when the solenoid 130 is operated to absorb the shock.

A release lever 140 is arranged near one arm 116 of the lever 114. The release lever 140 includes a support shaft 142 fixed to the holding block 170.
It is rotatably supported by, and a connecting pin 144 formed at one end is connected to the arm 116. Therefore, when the release lever 140 is rotated around the support shaft 142, the lever 114 (arm 116) is also rotated accordingly. The other end of the release lever 140 corresponds to a release knob 146 that is disposed so as to project from the main body 12 to the outside. The release knob 146 can press the other end portion of the release lever 140 by being pressed, whereby the release lever 140 can be forcibly rotated around the support shaft 142. That is, the release knob 1
By depressing 46, the lever 114 can be rotated to separate the lock plate 108 from the detent pin 104 (long hole 106) regardless of the operation of the solenoid 130.

Further, the detent pin 104 (the long hole 10
A P switch 148 is arranged near 6). P
The switch 148 has its detection piece 150 engageable with the detent pin 104, and when the detent pin 104 is moved to the side closest to the board 14 (when the operation knob 22 is selected to the “P” shift range). , Detection piece 15
The zero can engage the detent pin 104 and detect this. That is, as described above, in the shift operating device 10, the “N” shift position and the “P” shift position are
Since the operation knob 22 exists at the same position in the rotating direction (around the axis), the "P" shift position is not detected by the contact plate 82 and the printed circuit board 84, but is detected by the P switch 148. ing.

Although not described in detail, the overdrive switch 160 is provided near the release knob 146.
Is attached.

Next, the operation of the shift operating device 10 having the above structure will be described. In the shift operation device 10 having the above configuration, each shift position is selected by operating the operation knob 22.

That is, for example, between the shift positions of "N", "D", and "2", the operation knob 22 is rotated to operate the "N", "D", and "2". Each shift position is selected. In this case, since the operation knob 22, that is, the holder 24 and the rotor 62 rotate integrally, the rotation of the operation knob 22 causes the rotor 62 to rotate and the contact 86 of the contact plate 82 fixed to the rotor 62 and the print. The contact position with the circuit board 84 is changed so that the contact plate 82 (rotor 6
2) That is, the selected position of the operation knob 22 is detected. As a result, the automatic transmission is shifted based on this detection signal.

Further, in this case, the pin 54 of the shaft 52 which has entered the fitting groove 46 has the first groove 48 as shown in FIG.
Is movable, the operation knob 22 can rotate without being hindered by the shaft 52, and the shaft 52 does not move.

Further, from the "N" shift position, the operation knob 2
By moving 2 in the axial direction and rotating it,
The shift position of "R" is selected. In this case, since the operation knob 22 and the rotor 62 are relatively movable along the axial direction and rotate integrally, the rotation of the operation knob 22 causes the rotor 62 to rotate, which is similar to the above. The automatic transmission is shifted by being detected by the switch unit 80.
Further, in this case, since the pin 54 of the shaft 52 is inserted into the first groove 48 of the fitting groove 46, the shaft 52 also moves in the axial direction as the operation knob 22 moves in the axial direction, as shown in FIG. 7.

Furthermore, the operation knob 22 is moved in the axial direction from the "N" shift position to select the "P" shift position. In this case, since the pin 54 of the shaft 52 is inserted in the first groove 48 of the fitting groove 46, as shown in FIG. 7, the shaft 52 also moves in the axial direction as the operation knob 22 (holder 24) moves in the axial direction. Move to. As a result, the detection piece 150 of the P switch 148 engages with the detent pin 104, which is detected to shift the automatic transmission.

Further, the operation knob 22 is axially moved from the shift position of "2" and is rotated to be selected to the shift position of "L", which is detected by the switch section 80 as described above. The automatic transmission is shifted. In this case, as shown in FIG. 7, the pin 54 of the shaft 52 that has entered the first groove 48 of the fitting groove 46 can move relatively from the first groove 48 to the second groove 50. Even if 24) moves in the axial direction, the shaft 52 is not moved. That is, the operation knob 2
When 2 is operated from the shift position of "2" to the shift position of "L", the shaft 52 does not move even if this operation direction is the same axial direction as when selecting the shift position of "P" ( In other words, when the "P" shift position is selected, the shaft 52 also moves in the axial direction). Therefore, when the “L” shift position is selected by the operation knob 22, the detection piece 150 of the P switch 148 does not engage with the detent pin 104, and the P switch 148 does not operate unnecessarily.

On the other hand, the movement of these operation knobs 22 is performed by the holder 24 (piece 34) and the rotor 62 (roller 66).
Is done with moderation. In this case, the operation knob 2
The axial movement of the 2 (holder 24) is not transmitted to the rotor 62 but moves relative to each other, and only the rotation is transmitted to rotate integrally. Therefore, the axial movement of the operation knob 22 (holder 24) is The piece 34 and the click mount 40 (uneven portion 42) are operated with moderation, while the operation knob 22 (the holder 24 and the rotor 62) is rotated by the roller 66.
With the click mount 72 (uneven portion 74), it is performed with moderation. That is, since the moderating mechanism when the operation knob 22 is moved in the axial direction and the moderating mechanism when rotating the operation knob 22 are configured to be separated and independent from each other, the durability of each component forming these moderating mechanisms is significantly increased. It is possible to improve and further simplify the shape of each component.

Further, in the shift operation device 10, the solenoid 130 operates in accordance with the individually set conditions in a specific shift range. The operation in this case will be sequentially described according to the shift position of the operation knob 22 and the traveling state of the vehicle.

When the operation knob 22 is selected to the "P" shift position (vehicle stopped state), as shown in FIG. 7, the shaft 5 is attached to the end of the first groove 48 of the fitting groove 46 of the holder 24.
The pin 54 of No. 2 is located, and in this state, the operation knob 22 is pushed further toward the main body 12 side, and the detent pin 104 of the shaft 52 has the long hole 10
6 is located at the end on the substrate 14 side. Further, in this state, since the solenoid 130 is in the non-energized state, the plunger 132 is pulled out by the urging force of the return spring 136 mounted on the plunger 132. Therefore, the lock plate 108 connected via the lever 114 reaches the elongated hole 106, and the detent pin 104 is sandwiched between the lock plate 108 and the peripheral wall of the elongated hole 106.

As a result, the shaft 52 is prevented from moving in the axial direction, and the pin 54 is inserted into the first groove 48 of the fitting groove 46.
The operation knob 22 (holder 24) located at the end of the shaft and connected to the shaft 52 is also prevented from moving in the axial direction. Further, by the pin 32 that has entered the position corresponding to the “P” position of the guide groove 30 of the holder 24, the holder 24
That is, the operation knob 22 is also prevented from rotating. Therefore, the shift lock state in which the operation knob 22 is prevented from moving from the shift position "P" to another shift position (so-called,
P range shift lock).

When the brake is operated, the solenoid 130 is energized and excited, which pulls the plunger 132 against the urging force of the return spring 136, pulls the arm 118, and pivots the lever 114. Rotating around 120, the lock plate 108 is separated from the detent pin 104 (long hole 106). Therefore, the axial movement of the shaft 52, that is, the operation knob 2
It is possible to move from the "P" shift position 2 to the "N" shift position (P range shift lock is released).

On the other hand, when the operation knob 22 is selected to the "N" shift position, the solenoid 130 is energized and excited when the vehicle is in the stopped state or the low speed traveling state, whereby the plunger 132 is retracted. Arm 11
8 is pulled, the lever 114 rotates around the support shaft 120, and the lock plate 108 is separated from the detent pin 104 (long hole 106). Therefore, the shaft 52, that is, the operation knob 22 can be moved in the axial direction. Further, in this state, the holder 24, that is, the operation knob 22 can rotate relative to the shaft 52 within a range in which the pin 54 can move in the fitting groove 46. Therefore, by rotating the operation knob 22 from the "N" shift position, it is possible to perform a selection operation to the "D" and "2" shift positions, and
The operation knob 22 can be selectively moved to the "R" shift position by moving and rotating the operation knob 22 in the axial direction from the "N" shift position, and further, the operation knob 22 can be moved in the axial direction from the "N" shift position. By doing so, it is possible to select and operate the shift position of "P".

On the other hand, when the operation knob 22 is selected to the "N" shift position, the solenoid 130 is de-energized when the vehicle is running at a medium speed or higher, so that the return mounted on the plunger 132 is performed. The plunger 132 is pulled out by the urging force of the spring 136, and the lever 1
The lock plate 108 connected via 14 moves closer to the detent pin 104, and the detent pin 104 is fitted into the engagement groove 110 as shown in FIG. 7. As a result, the shaft 52 is prevented from moving in the axial direction, and the pin 54 is located at the end of the first groove 48 of the fitting groove 46 and is connected to the shaft 52 (the holder 24).
Also, axial movement is blocked. Therefore, a shift lock state (so-called R inhibit) in which movement of the operation knob 22 from the “N” shift position to the “R” shift position and the “P” shift position is prevented is achieved. This shift lock state continues until the vehicle speed reaches a predetermined speed or lower. Further, in this case, since the pin 54 can move in the fitting groove 46, the operation knob 22 can be moved from the "N" shift position to the "D" shift position direction.

When the vehicle is running at a medium speed or lower or is stopped, the solenoid 130 is energized and excited to release the shift lock.

Further, when the operation knob 22 is selected to the shift position "2" and the vehicle is in a traveling state at a medium speed or lower or is in a stopped state and the shift lock is released, the shaft 52 of the shaft 52 is released. Since the shaft 52 can be moved in the axial direction and the shaft 52 is urged in the direction of the operation knob 22 by the spring 102, the pin 54 that has entered the first groove 48 tends to enter in the direction of the second groove 50. To do. However, the first groove 48 and the second groove 5
Since the inclined surface 49 is formed between 0 and 0, by rotating the operation knob 22 from the shift position of "2",
The pin 54 easily moves to the first groove 48 while sliding on the inclined surface 49, so that the pin 54 can be reliably selected and operated to the "D" shift position.

When the shift lock at the "N" shift position is released and the operation knob 22 is selected at the "R" shift position, the shift lock is not performed and the operation knob 22 (shaft 52) is not affected. It is possible to move.

On the other hand, when the operation knob 22 is selected to the "N" shift position and the shift lock state is set, the operation knob 22 rotates as described above, that is, "D" from the "N" shift position. Of the lock plate 108 can be moved in the shift position direction, but when the shift position of “N” is changed to the shift position of “2”, the lock plate 108 still remains.
The engagement groove 110 locks the detent pin 104 to prevent the shaft 52 from moving.

However, here, the pin 54 connecting the operation knob 22 (holder 24) to the shaft 52 is inserted into the fitting groove 46 formed in the crank shape by the first groove 48 and the second groove 50, First groove 48 to second groove 50
Because the pin 54 can move relative to
As shown in FIG. 7, the pin 5 moves from the first groove 48 to the second groove 50.
4 is moved relative to the holder 24 (operation knob 2
2) can be operated and moved from the shift position of "2" to the shift position of "L". That is, even if the shaft 52 is prevented from moving in the axial direction by the lock plate 108 at the “2” shift position, the pin 54 relatively moves from the first groove 48 to the second groove 50 so that the operation knob 22 (holder The shift operation of 24) can be performed. Therefore, even if the operation direction of the operation knob 22 when selecting the "L" shift position is the same axial direction as when selecting the "P" shift position, the shaft 52 does not move, so the P switch 148. The detection piece 150 of 1 does not engage with the detent pin 104, and the P switch 148 does not operate unnecessarily.

Furthermore, in the shift operating device 10, the shift lock state can be released by a manual operation regardless of the shift lock state by the operation of the solenoid 130.

That is, since the release lever 140 is arranged in the vicinity of the lever 114 and the release knob 146 is provided correspondingly, the lever 114 is pushed via the release lever 140 by pressing the release knob 146. By forcibly rotating the lock plate 108, the lock plate 108 can be separated from the detent pin 104 (the long hole 106) (mechanical shift lock release).
Therefore, even when the power supply is cut off, the shaft 52 can be moved in the axial direction, that is, the operation knob 22 can be operated, which is also effective for maintenance work and the like.

By operating the solenoid 130 irrespective of the shift position of the operation knob 22, the lock plate 108 is naturally moved to the detent pin 104 (the long hole 10).
It can also be separated from 6) (electrical shift lock release).

As described above, in the shift lever device 10, not only the shift position selected by the shift operation of the operation knob 22 can be detected by the switch portion 80 (and the P switch 148) to shift the automatic transmission, but also "P"",
The lock plate 1 is operated by operating the solenoid 130 according to the vehicle speed set individually at a specific shift position such as “R”, “N”, “D”, “2”, and “L”.
08, the shaft 52 can be restrained to prevent the shift operation of the operation knob 22, and the single solenoid 13
0 and the simple structure of the lock plate 108,
The shift lock state can be established under a predetermined condition. In addition, this shift lock state is the release knob 1
It can also be arbitrarily released by manual operation of 46.

[0073]

As described above, the shift operation device for an automatic transmission according to the present invention can electrically detect the shift position selected by the shift operation and shift the automatic transmission based on the detection signal. In addition, the simple structure has an excellent effect that the shift lock state can be reliably achieved under a predetermined condition.

[Brief description of drawings]

FIG. 1 is a front view of a shift operating device for an automatic transmission according to the present invention.

FIG. 2 is a left side view of a shift operating device for an automatic transmission according to the present invention.

3 is a sectional view of the shift operating device taken along line 3-3 of FIG.

4 is a cross-sectional view of the shift operating device taken along line 4-4 of FIG.

FIG. 5 is an exploded perspective view of a shift operating device for an automatic transmission according to the present invention.

FIG. 6 is an exploded perspective view of a shift operating device for an automatic transmission according to the present invention.

FIG. 7 is a pin of the shift operating device at each shift position,
It is a schematic diagram showing a correspondence of a fitting slot, a lock plate, a detent pin, etc.

[Explanation of symbols]

 10 shift operation device 20 operation unit 22 operation knob 24 holder 52 shaft 62 rotor 80 switch unit 100 shift lock unit 104 detent pin 106 long hole 108 lock plate 110 engaging groove 114 lever 130 solenoid 140 release lever 146 release knob

 ─────────────────────────────────────────────────── ─── Continuation of the front page (1) Noda No. 1 Toyoda, Oguchi-machi, Oguchi-machi, Niwa-gun, Aichi Prefecture, Tokai Rika Electric Co., Ltd. (72) Inventor, Kazuyoshi Ishiguro, Oguchi-machi, Niwa-gun, Aichi, Japan 1st location Tokai Rika Electric Co., Ltd. (72) Inventor Ryuji Ibaraki 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Automobile Co., Ltd. (72) Inventor Norihiro Kitamura 1st Toyota Town, Toyota City, Aichi Prefecture Toyota Automobile Co., Ltd. (72) Inventor Yoji Terazono 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Katsuyuki Ono 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd.

Claims (1)

[Claims] 1. A shift operating device for use in an automatic transmission having a P shift range, an R shift range, an N shift range, and one or more D shift ranges, wherein an axis line of a main body formed in a substantially cylindrical shape. It is provided so as to be rotatable and axially movable, and is rotated to a shift position provided corresponding to the N shift range and the D shift range for selective operation, and also corresponds to the P shift range and the R shift range. An operating knob that is axially moved to a shift position provided for selective operation, a switch unit that detects the selected shift position of the operating knob, and the operating knob that is arranged along the axis of the main body A shaft that is coupled to the shaft and that interlocks with the movement of the operation knob in the axial direction; and a shaft that is engageable with and disengageable from the shaft. A lock plate for blocking axial movement, is connected to the lock plate, the operation knob is the P
When the shift range is selected, the lock plate is brought into a stopped state so that the lock plate is engaged with the shaft, and the lock plate is disengaged from the shaft by a predetermined brake operation. When the operating knob is selected to the N shift range, it operates at a predetermined vehicle speed or lower set according to the N shift range to disengage the lock plate from the shaft and stops at a predetermined vehicle speed or higher. A solenoid for bringing the lock plate into a state in which the lock plate is engaged with the shaft; and a release knob that is connected to the lock plate and is capable of releasing the lock plate from the shaft regardless of the operation of the solenoid. A shift operation device for an automatic transmission, characterized by being provided.