JPH094702A - Shift lever device for automatic transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of position detector switches of a shift lever, and form its detent part in a construction advantageous for strength. SOLUTION: A first engagement part 35 capable of engaging with a holder 55 of a position detector switch 52 mounted on the outer peripheral part of an upper base 26 is provided on a shift lever 30, and a switch drive link 61 provided with a second engagement part 66 capable of engaging with the holder of the position detector switch 52 is provided on the upper base 26 with a detent part which positions the shift lever 30 in each range. Then, when the shift lever 30 is positioned in P range, a movable contact 56 which is moved by the movement of the holder 55 is brought in contact with a first fixed contact 51 of the position detector switch 52 and, when the shift lever 30 is positioned in 3 range, the movable contact 56 which is moved by the movement of the holder 55 is brought in contact with a second fixed contact 58 of the position detector switch 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever device for an automatic transmission of an automobile, and more particularly to a shift lever device for a gate type automatic transmission capable of shifting the shift lever in the vehicle longitudinal direction and the vehicle width direction. Regarding the structure.

[0002]

2. Description of the Related Art A shift lever device for an automatic transmission includes a straight type shift lever device in which the shift lever can be shifted only in the vehicle longitudinal direction and a gate type in which the shift lever can be shifted in the vehicle longitudinal direction and the vehicle width direction. There is a shift lever device.

FIG. 41 shows an example of a conventional shift lever device for a gate type automatic transmission. As shown in FIG. 41, the shift lever 1 can be positioned in the P, R, N, D, 3, 2, and L ranges, respectively. P'shows the process of shifting the shift lever 1 from the P range to another range. In a vehicle, it is necessary to detect in which range the shift lever is present due to traveling control and the like, but for the R, N, 2, L ranges, a transmission (not shown) that is interlocked with the movement of the shift lever 1 It can be detected by the side.

On the other hand, the shift operation between the P range and the P'range and the shift operation between the D range and the 3 range cannot be detected on the transmission side. This is because the movement of the shift lever 1 in the vehicle front-rear direction is transmitted to the transmission, but the movement of the shift lever 1 in the vehicle width direction is not transmitted to the transmission. Therefore, as shown in FIGS. 42 and 43, the conventional gate type shift lever device is provided with position detection switches 2 and 3 for detecting the shift operation of the shift lever 1 to the P range and the shift operation to the 3 range. Has been.

[0005]

However, in the conventional gate type shift lever device, since the position detection switches are provided independently of each other, a wire harness (electric wire) is provided.
Also, there is a problem that the cost including the connector (connection terminal) becomes high. Further, as shown in FIG. 44, each of the position detection switches 2 and 3 is provided between an upper base 5 provided directly above the lower base to which the shift lever 1 is attached and an upper housing 6 which covers the upper base 5. Therefore, the distance H between the upper base 5 and the upper housing 6 becomes long, and a large detent plate (not shown) with which the shift lever 1 engages is attached to the upper base 5 when shifting the shift lever 1. A force is applied, resulting in a structure that is disadvantageous in terms of strength. This is because the height of the upper housing 6 and the length of the shift lever 1 cannot be changed due to the design and operability of other interior parts, and when the position detection switches 2 and 3 are provided, the upper housing 6 is On the other hand, the height of the upper base 5 is inevitably lowered,
This is because the distance between the fulcrum and the action point (detent plate) is significantly shorter than the distance between the fulcrum (center of swing of the shift lever) and the force point (top of the shift lever).

An object of the present invention is to provide a shift lever device for an automatic transmission, which can reduce the position detecting switch of the shift lever and can make the detent portion on which the operating force of the shift lever acts has an advantage in strength. To provide.

[0007]

The shift lever device for an automatic transmission according to the present invention which achieves this object is as follows. (1) A shift lever attached to a lower base and swingable in a vehicle front-rear direction and a vehicle width direction, an arm portion provided on the shift lever and having a first engaging portion, and fixed to the lower base, An upper base provided with a detent portion capable of positioning the shift lever in each range, and a cam surface that is swingably attached to the upper base and has one side capable of contacting the boss portion of the shift lever and the other side. A switch drive link having a second engaging portion at
A holder attached to the outer peripheral portion of the upper base and engageable with the first engaging portion of the arm portion and the second engaging portion of the switch drive link, and a holder associated with movement of the arm portion and the switch drive link. And a first fixed contact that contacts the moving contact when the shift lever is positioned in the P range.
A position detection switch having a second fixed contact that comes into contact with the moving contact when the shift lever is positioned in a specific range other than the P range, and a shift for an automatic transmission, comprising: Lever device. (2) A shift lever that can swing in the vehicle front-rear direction and the vehicle width direction, a base plate that supports the shift lever and has a detent portion that can position the shift lever in each range, and the shift lever, A boss portion having a first protrusion and a second protrusion, and a swayable member provided on the base plate, which is pressed by the first protrusion when the shift lever is shifted to the P range.
And a switch drive link having a second positioning surface which is pressed by the second protrusion when the shift lever is shifted to a specific range other than the P range, and an outer peripheral portion of the base plate. A holder that is provided and is connected to the switch drive link that is positioned at a predetermined swing angle by pressing by the protrusions, a moving contact that moves by the movement of the holder accompanying the movement of the switch drive link, and the shift Lever is P
A first fixed contact that contacts the moving contact when positioned in the range, and a second fixed contact that contacts the moving contact when the shift lever is positioned in a specific range other than the P range A shift lever device for an automatic transmission, comprising: a position detection switch having: (3) A shift lever that can swing in the vehicle front-rear direction and the vehicle width direction, a base plate that has a detent portion that supports the shift lever and that can position the shift lever in each range, and movably provided on the base plate. When the shift lever is shifted to the P range, it is moved in a predetermined direction by pressing the shift lever against the first cam surface, and when the shift lever is shifted to a specific range other than the P range, the shift lever is shifted. A switch drive rod that moves in a direction opposite to the predetermined direction by pressing the lever on the second cam surface, a holder provided on the outer peripheral portion of the base plate and connected to the switch drive rod, and a switch drive rod of the holder. The moving contact that moves by the movement of the holder accompanying the movement and the shift lever are positioned in the P range. Position detection having a first fixed contact that comes into contact with the moving contact when the shift lever is positioned, and a second fixed contact that comes into contact with the moving contact when the shift lever is positioned in a specific range other than the P range A shift lever device for an automatic transmission, comprising: a switch.

In the shift lever device for an automatic transmission of the above (1), the arm portion moves and the switch drive link swings due to contact with the boss portion of the shift lever during shift operation of the shift lever. First arm part
And the second engaging portion of the switch drive link,
Since it can be engaged with the holder of the position detection switch, the holder can be moved by shifting the shift lever, and the movement contact moves due to the movement of the holder. Here, when the shift lever is positioned in the P range, the moving contact comes into contact with the first fixed contact, and it is detected that the shift lever is in the P range. Similarly, when the shift lever is positioned in a specific range (for example, 3 ranges) other than the P range,
The moving contact comes into contact with the second fixed contact and the shift lever
Presence in range is detected. Since each fixed contact is provided in the same position detection switch, only one position detection switch is required, and the number of position detection switches can be reduced as compared with the conventional device. Since the position detection switch is provided on the outer peripheral portion of the upper base, it is not necessary to significantly lower the height of the upper base with respect to the upper housing. Therefore, it is possible to secure a large distance between the swing fulcrum of the shift lever and the upper base to which the detent portion serving as the point of action is attached, and the upper base on which the operating force of the shift lever acts is advantageous in strength. Becomes In the shift lever device for an automatic transmission according to the above (2), when the shift lever is shifted toward the P range, the first protrusion of the boss portion presses the first positioning surface of the switch drive link. With the movement of the shift lever, the switch drive link swings by a predetermined angle, and the holder connected to the switch drive link moves. When the shift lever is positioned in the P range, the moving contact of the position detection switch comes into contact with the first fixed contact, and it is detected that the shift lever is in the P range. When the shift lever is shifted to position the shift lever in a specific range (for example, 3 ranges) other than the P range, the second protrusion of the boss portion presses the second positioning surface of the switch drive link. With the movement of the shift lever, the switch drive link swings, for example, in the opposite direction by a predetermined angle, and the holder connected to the switch drive link moves. When the shift lever is positioned in the three ranges, the moving contact of the position detection switch comes into contact with the second fixed contact, and it is detected that the shift lever is in the three ranges. Since each fixed contact is provided in the same position detection switch, only one position detection switch is required, and the number of position detection switches can be reduced as compared with the conventional device. Since the position detection switch is provided on the outer periphery of the base plate portion, it is not necessary to significantly reduce the height of the detent portion for positioning the shift lever. Therefore, a large distance can be secured between the swing fulcrum of the shift lever and the detent portion serving as the point of action, and the detent portion on which the operating force of the shift lever acts becomes advantageous in strength. In the shift lever device for an automatic transmission according to the above (3), when the shift lever is shifted to the P range, the shift lever presses the first cam surface of the switch drive rod. Moves in a given direction. As a result, the holder connected to the switch drive rod also moves, and it is possible to detect that the shift lever is shifted to the P range due to the contact between the moving contact and the first fixed contact. When the shift lever is shifted to a specific range other than the P range (for example, 3 ranges), the shift lever moves to the second position of the switch drive rod.
Since the cam surface of is pressed, the pressing force can move the switch drive rod in the direction opposite to the predetermined direction. Therefore, the holder connected to the switch drive rod also moves in the opposite direction, and it is detected that the shift lever is shifted to the three ranges by the contact between the moving contact and the second fixed contact. Since each fixed contact is provided in the same position detection switch, only one position detection switch is required as in the above claims. Further, since the position detection switch is provided on the outer peripheral portion of the base plate portion, the detent portion is advantageous in strength as in the above claims.

[0009]

1 to 10 show a shift lever device for an automatic transmission according to a first embodiment of the present invention. In FIG. 1, reference numeral 20 denotes a lower base fixed to the vehicle body (not shown) side. The lower base 20 is formed with a support hole 23 into which a shaft 22 to which a connecting lever 21 is attached is inserted. The connecting lever 21 is swingable around the shaft 22 in the vehicle front-rear direction. The lower end of the connecting lever 21 is connected to a vehicle transmission (not shown) via a rod (not shown). Immediately above the lower base 20, the upper base 26
Is arranged. The leg portion of the upper base 26 is fastened to the lower base 20 by a nut 25 screwed with a screw 24 provided on the lower base 20.

A shift lever 30 is connected to a shaft 22 of a connecting lever 21 which is swingably supported by the lower base 20. The lower end 31 of the shift lever 30 has an inverted U shape.
It is formed in a character shape and straddles the shaft 22.
The lower end portion 31 is connected to the shaft 22 via a connecting pin (not shown) that penetrates the shaft 22. The shift lever 30 has a rod 32 extending upward from a lower end portion 31. The rod 32 has a knob 33 at the top. A plate-shaped arm portion 34 that horizontally extends in the front-rear direction of the vehicle is formed near the lower end portion 31 where the rod 32 is fixed. At the tip of the arm portion 34, a U-shaped first
Engaging portion 35 is formed. A boss portion 36 that extends horizontally in the vehicle width direction is formed at a position adjacent to the first engaging portion 35 of the lower end portion 31.

The shift lever 30 is swingable around the shaft 22 in the vehicle front-rear direction (arrow X direction). The movement of the shift lever 30 in the vehicle front-rear direction is transmitted to the connecting lever 21 via the shaft 22. The shift lever 30 can swing in the vehicle width direction (arrow Y direction) about a connecting pin (not shown) that penetrates the shaft 22. The movement of the shift lever 30 in the vehicle width direction is not transmitted to the shaft portion 22 and the connecting lever 21.

At the top of the upper base 26, a stepped elongated hole 28 through which the rod 32 of the shift lever 30 is inserted is formed. A detent plate 40 as a detent portion is attached to the top surface of the upper base 26. The detent plate 40 has a stepped positioning step portion 41 that is similar in shape to the elongated hole 28. In the shift lever 30, except for the D range, the rod 32 is always in contact with the positioning step 41 of the detent plate 40 by a spring (not shown). In the D range, the shift lever 30 is engaged with the upper base 26 by a moderation mechanism (not shown), and is positioned at a position away from the positioning step 41 of the detent plate 40 in the vehicle width direction. The engagement between the moderation mechanism and the upper base 26 can be released by simply moving the shift lever 30 in the vehicle width direction.

The shift lever 30 can be positioned by the detent plate 40 in P range, R range, N range, D range, 3 range, 2 range, and L range, respectively. The P range is used when the vehicle parks and stops, and the R range is used when the vehicle retreats. The N range is a neutral range, and the rotational driving force of the engine is not transmitted to the wheels. The D range is a drive range, which is 1 depending on the depression amount of an accelerator pedal (not shown).
Up to four speeds are automatically selected as a gear ratio. The three ranges are used in a fixed range of the first to third speeds of the D range, and the second range are used in a fixed range of the first to second speeds of the D range. Note that P'denotes a mere passing point of the shift lever 30, and the shift lever 30 is not positioned here.

A mounting base 46 is formed on the outer peripheral portion of the upper base 26 and extends in the front-rear direction of the vehicle. A position detection switch 52, which is integrally assembled with the solenoid 50, is fixed to the mounting base 46. The position detection switch 52 is mounted on the solenoid 50 in an overlapping manner, and the solenoid 50 is fastened to the mounting base 46 with screws or the like. The movement of the shift lever 30 is locked by a shift lock mechanism (not shown) when the shift lever 30 is in the P range, so that the shift operation to another range cannot be performed unless a brake pedal (not shown) is depressed. ing. The solenoid 50 is excited when the brake pedal (not shown) is depressed while the shift lever 30 is in the P range, and the shift lock of the shift lever 30 is released.

In this embodiment, the position detection switch 52 is located at the front portion of the upper base 26 in the vehicle traveling direction. The shift lever device having the position detection switch 52 at this position is FR (front engine / rear drive).
Suitable for system vehicles. This is because the FR type vehicle has the engine vertically installed and the automatic transmission (not shown) is arranged on the floor side, so that the rod (not shown) for transmitting the movement of the shift lever 30 is located below the floor of the automobile. And the automatic transmission is connected outside the passenger compartment.
This is because placing them in the above position does not interfere.

The position detection switch 52 has a case 53, a lever 54, a holder 55, a moving contact 56, a first fixed contact 57, and a second fixed contact 58. Lever 54
Is accommodated in the case 53 and can swing horizontally about the fulcrum 59. A holding hole 54a is formed in the lever 54. A holder 55 is slidably mounted in the holding hole 54a. Lever 5
A moving contact 56 is attached to the front end portion of 4. On both sides of the lever 54 in the case 53, the shift lever 30
A first fixed contact 57 for detecting that the vehicle is in the P range,
A second fixed contact 58 for detecting that the shift lever 30 is in three ranges is arranged. The first fixed contact 57 is composed of two metal terminals, and the two metal terminals can be conducted by the moving contact 56. The second fixed contact 58 is composed of two metal terminals, and the two metal terminals can be conducted by the moving contact 56.

A shaft 60 extending upward is formed on the outer surface of the corner of the upper base 26. An L-shaped switch drive link 61 is supported on the shaft 60 so as to be swingable in the horizontal direction. The switch drive link 61 has a shaft 6
Fulcrum portion 62 fitted to 0 and 2 extending from the fulcrum portion 62
It has one arm 63, 64. One arm 63
A cam surface 65 that can contact the boss portion 36 of the shift lever 30 is formed at the end portion of the. A U-shaped second engaging portion 66 capable of engaging with the holder 55 of the position detection switch 52 is formed at the end of the other arm 64. The holder 55 is also engageable with the first engaging portion 35 of the shift lever 30. The upper part of the upper base 26 is covered with an upper housing 70. The upper housing 70 is fixed to the upper base 26 by engaging the engaging piece 71 with the engaging portion 72 of the upper base 26.

The switch drive link 61 is covered with a housing upper 70. The switch drive link 61 is urged by a spring 74 arranged on the outer periphery of the fulcrum portion 62 in a direction in which the arm 63 approaches the shift lever 30 side. Holder 5 for position detection switch 52
The upper part of 5 is inserted into a V-shaped guide hole 53a formed in the case 53, and the holder 55 is inserted into the guide hole 53a.
It is designed to move horizontally along a. The lever 54 of the position detection switch 52 swings when the shift lever 30 swings in the vehicle width direction and the arm portion 34 and the switch drive link 61 engaged with the holder 55 move, and the moving contact 56. Moves back and forth with respect to each fixed contact 57, 58.

Next, the operation of the first embodiment will be described. As shown in FIG. 6, when the shift lever 30 is in the P range, the first engaging portion 3 of the shift lever 30
5 and the second engaging portion 66 of the switch drive link 61 are engaged with the holder 55 of the position detection switch 52, the holder 55 is pulled toward the P range side. In this state, the lever 54 swings toward the first fixed contact 57 side, and the two metal terminals of the first fixed contact 57 are electrically connected via the moving contact 56. Therefore, it is possible to electrically confirm that the shift lever 30 is in the P range.

When the vehicle is started, the solenoid 50 is excited by depressing a brake pedal (not shown), and the shift lock of the shift lever 30 is released. As shown in FIG. 7, when the shift lever 30 is shifted to the P ′ position, the holder 55 engaged with the first engaging portion 35.
Moves away from the P range. Therefore, the lever 54 provided with the moving contact 56 swings to move the moving contact 5
6 is separated from the first fixed contact 57. Therefore, the first
The two metal terminals of the fixed contact 57 are brought out of conduction. It should be noted that the fact that the shift lever 30 is in the P'position is recognized on the transmission side that is interlocked with the movement of the shift lever 30.

FIG. 8 shows a state in which the shift lever 30 is shifted to the D range. In this case, movement of the shift lever 30 in the vehicle front-rear direction causes the holder 55 and the first
The engagement with the engaging portion 35 is released, and only the holder 55 and the second engaging portion 66 are engaged with each other. Therefore, the moving contact 56 remains separated from the first fixed contact 57, and the two metal terminals of the first fixed contact 57 are brought out of conduction. The fact that the shift lever 30 is in the D range is ascertained by the transmission side as described above.

FIG. 9 shows a state in which the shift lever 30 is shifted to three ranges. When the shift lever 30 is shifted from the D range to the 3 range, the boss portion 36 of the shift lever 30 abuts on the cam surface 65 of the switch drive link 61, and the switch drive link 61 serves as the center of the fulcrum portion 62 in the arrow Z direction. Rock to. The holder 55 of the position detection switch 52 is provided with a switch tribe link 61.
Since it is engaged with the second engaging portion 66, the lever 54 also swings as the switch drive link 61 swings.
Therefore, the moving contact 56 comes into contact with the second fixed contact 58, and the two metal terminals of the second fixed contact 58 are connected to the moving contact 5.
It is conducting through 6. Therefore, the shift lever 3
It is possible to electrically confirm that 0 is in the 3 range.

FIG. 10 shows a state in which the shift lever 30 is shifted to two ranges. The cam surface 65 of the switch drive link 61 is an inclined surface whose end gradually moves away from the shift lever 30.
When 0 moves to the 2 range, contact between the boss portion 36 of the shift lever 30 and the cam surface 65 is avoided. Therefore, the switch drive link 61 swings toward the shift lever 30 side by the urging force of the spring 74, and the holder 55 engaged with the second engaging portion 66 is brought into the state shown in FIG.
Therefore, the moving contact 56 does not come into contact with either the first fixed contact 57 or the second fixed contact 58, and the two metal terminals of each fixed contact 57, 58 become non-conductive.

In the conventional device, since the position detection switch for detecting the shift position of the shift lever is mounted on the upper surface of the detent plate provided on the top surface of the upper base, the position of the upper base is lower than that of the upper housing. However, in this embodiment, the position detection switch 5
Since 2 is provided on the outer periphery of the upper base 26, the upper base 26 to which the detent plate 40 is attached
There is no need to lower the height of the. As a result, a large distance can be secured between the swing fulcrum of the shift lever 30 and the detent plate 40 serving as the point of action. Therefore, the force acting on the upper base 26 when the shift lever 30 and the detent plate 40 come into contact with each other is small, and the upper base 26 has a structure advantageous in strength.

In this embodiment, since the position detection switch 52 is assembled integrally with the solenoid 50 for releasing the shift lock, the length of the wire harness (electric wire) and the number of connectors for connecting the wire harness are set. It is also possible to reduce. Further, since the electric components such as the position detection switch 52 and the solenoid 50 are arranged adjacent to each other, the work of connecting the wire harness is facilitated.

11 to 16 show a shift lever device for an automatic transmission according to a second embodiment of the present invention,
This corresponds to claim 2. In FIG. 11, 80
Indicates a base plate fixed to the vehicle body (not shown) side. A support hole 83 into which the shaft 81 is inserted is formed in the base plate 80. A coupling lever 82 is provided on the shaft 81. Connection lever 82
Can swing in the vehicle front-rear direction about the shaft 81. The end portion of the connecting lever 82 is connected to an automatic transmission (not shown) of the vehicle via a rod (not shown).

A shift lever 85 is connected to the shaft 81. The shift lever 85 is the base plate 8
The P range by the detent portion 80a formed in 0,
R range, N range, D range, 3 range, 2 range,
Positioning is possible in each L range. Similar to the first embodiment, the P range is used when the vehicle is parked and parked, and the R range is used when the vehicle moves backward. The N range is a neutral range, and the rotational driving force of the engine is not transmitted to the wheels. The D range is a drive range, which is 1 depending on the depression amount of an accelerator pedal (not shown).
The automatic selection is made to any of the four speed ratios. The 3 range is used by fixing to the 1st to 3rd speed range of the D range, and the 2 range is 1 of the D range.
It is used by fixing it to the range of 2nd speed. In addition,
P'denotes a mere passing point of the shift lever 30, and the shift lever 85 is not positioned here.

A lower end portion 86 of the shift lever 85 is formed in an inverted U shape and straddles the shaft 81. The lower end portion 86 is connected to the shaft 81 via a connecting pin 87 that penetrates the shaft 81. Shift lever 85
Has a rod 88 extending upward from the lower end portion 86. The rod 88 has a knob 89 at the top. A boss portion 90 that bulges outward is formed on the lower portion of the shift lever 85. As shown in FIG. 12, the boss portion 90 is formed with a holding hole 91 that opens upward. Holding hole 9
1, a holder 92 is held so as to be vertically movable. The holder 92 is biased upward by the spring 93 housed in the holding hole 91. A ball 94 for positioning is rotatably held on the top of the holder 92. When the shift lever 85 is being shifted, FIG.
As shown in, the balls 94 roll on the moderation grooves 80b formed on the ceiling surface side of the base plate 80.

On the boss 90, a first protrusion 101 and a second protrusion 102 projecting outward are formed adjacent to each other in the horizontal direction. The protrusion amount of the second protrusion 102 is larger than that of the first protrusion 101. The tip shapes of the first protrusion 101 and the second protrusion 102 are both arc-shaped. The side wall of the base plate 80 has a bearing 105
Are formed. A switch drive link 110 is supported on the bearing portion 105 so as to be horizontally swingable. The switch drive link 110 can swing to the left and right around a fulcrum portion 111 fitted to the bearing portion 105. A torsion spring 121 that returns the switch drive link 110 to the neutral position F ₀ is attached to the upper portion of the fulcrum portion 111. The tip ends of both ends of the torsion spring 121 are in contact with the stopper 106 formed on the base plate 80 side. An engaging projection 112 extending from a fulcrum 111 of the switch drive link 110 is provided between both ends of the torsion spring 121.
Is located.

As shown in FIG. 14, on one side (left side) of the fulcrum portion 111 of the switch drive link 110, when the shift lever 85 is in the P range, the first portion of the boss portion 90 is provided.
The first positioning surface 115 pressed by the protrusion 101 is formed. On the other side (right side) of the fulcrum portion 111 of the switch drive link 110, a second positioning surface 116 that is pressed by the second protrusion 102 of the boss portion 90 when the shift lever 85 is in the three ranges is formed. ing. An engagement groove 118 is formed at an end of the switch drive link 110 opposite to the fulcrum 111.

The engaging groove 118 has a shift lever 85 of P
When the shift lever 85 is shifted to the range, it is positioned at the position F ₁ in FIG. 14, and when the shift lever 85 is shifted to the 3 range, it is positioned at the position F ₂ in FIG. When the shift lever 85 is in the P range, the first protrusion 101 is in slight contact with or away from the first positioning surface 115, and in this state, the engagement groove portion 118 is It is positioned at the neutral position F ₀ in FIG. When the shift lever 85 is in the D range, the second protrusion 102 has the second positioning surface 1
16 in light contact with the second positioning surface 116
14 in this state.
Is positioned at the neutral position F ₀ . That is, when the shift lever 85 is outside the P range and the 3 range, the engagement groove portion 118 is positioned at the neutral position.

A holding portion 80c extending in the front-rear direction of the vehicle is formed on the outer peripheral portion of the base plate 80. The holding portion 80c is located on the rear portion (L range side) of the base plate 80 in the vehicle traveling direction. The position detection switch 52 is attached to the holding portion 80c as in the first embodiment. The position detection switch 52 accommodates a solenoid 50 for releasing the shift lock, a printed wiring board, and the like. As shown in FIG. 14, the position detection switch 52 has a holder 55, a moving contact 56, a first fixed contact 57, and a second fixed contact 58. The holder 55 is engaged with the engagement groove portion 118 of the switch drive link 110.

The holder 55 is positioned at the positions F _{0 to} F _{2 in} FIG. 14 by the movement of the switch drive link 110 based on the shift operation of the shift lever 85. The moving contact 56 is attached to the holder 55,
As the holder 55 moves, the holder 55 moves to the first fixed contact 57 side or the second fixed contact 58 side. First fixed contact 57
The shift lever 85 moves to P by contact with the moving contact 56.
It detects that it is in the range. The second fixed contact 58 causes the shift lever 85 to come into contact with the moving contact 56.
Is detected in 3 ranges.

In this embodiment, the position detection switch 52 is located at the rear portion of the base plate 80 in the vehicle traveling direction. The shift lever device having the position detection switch 52 at this position is suitable for an FF (front engine / front drive) type vehicle. That is, in the FF type vehicle, since the engine is placed horizontally, the automatic transmission (not shown) is arranged inside the engine seal, and the movement of the shift lever 85 is transmitted to the automatic transmission via the cable wire (not shown). Therefore, it is impossible to dispose the position detection switch 52 on the P range side located in the forward direction of the vehicle due to the interference with the cable wire.

Next, the operation of the second embodiment will be described. As shown in FIG. 14, shift lever 85 to P
When shifting to the range, since the first positioning surface 115 of the switch drive link 110 is pressed by the first protrusion 101 of the boss portion 90, the switch drive link 110 swings, and the engaging groove portion 118 is drawn. It is positioned at 14 positions F ₁ . In this state, the first fixed contact 57 comes into contact with the moving contact 56, so that the shift lever 85
It is possible to electrically confirm that is in the P range.

When the vehicle is started, the solenoid 50 is excited by depressing a brake pedal (not shown), and the shift lock of the shift lever 85 is released. As shown in FIG. 14, when the shift lever 85 is shifted to the P ′ position, the first protrusion 101 moves the first positioning surface 11
5, the switch drive link 110 is returned to the neutral position F ₀ by the torsion spring 121. In this state, the moving contact 56 is the first fixed contact 5
Move away from 7. It should be noted that the fact that the shift lever 85 is in the P'position is recognized on the automatic transmission side that is interlocked with the movement of the shift lever 85.

When the shift lever 85 is shifted to the D range, the second protrusion 102 of the boss 90 does not press the second positioning surface 116 of the switch drive link 110, so that the switch drive link 110 is in the neutral position F.
_It will keep ₀ . In this state, the moving contact 56 remains separated from the second fixed contact 58 as in the P'range. The fact that the shift lever 85 is in the D range is recognized by the automatic transmission side.

When the shift lever 85 is shifted to the 3 range, the second protrusion 102 presses the second positioning surface 116 of the switch drive link 110, so that the switch drive link 110 swings and the engaging groove portion. 118 is positioned at position F ₂ in FIG. In this state, the second fixed contact 58 comes into contact with the moving contact 56, and it becomes possible to electrically grasp that the shift lever 85 is in the three ranges.

Also in the second embodiment, the first fixed contact 5
Since the moving contact 56 is brought into contact with the seventh fixed contact 58 and the second fixed contact 58 to detect the shift position of the shift lever 85, only one position detection switch 52 is required. Further, since the position detection switch 52 is attached to the holding portion 80c located on the outer peripheral portion of the base plate 80, it is not necessary to reduce the height of the detent portion 80a of the base plate 80 in order to provide the position detection switch 52. Therefore, the detent portion 80a for positioning the shift lever 85 in each range can be arranged at a position advantageous in strength.

17 to 21 show a shift lever device for an automatic transmission according to a third embodiment of the present invention.
Since a part of the configuration of this embodiment conforms to that of the second embodiment, by applying the same reference numerals to those of the second embodiment,
The description of the corresponding portions will be omitted, and only different portions will be described. As shown in the shift pattern of FIG. 18, this embodiment has each range of parking (P), reverse (R), neutral (N), tribe (D), and manual (M). When the shift lever 85 is shifted to the D range, the gear ratio of the automatic transmission is automatically switched to the top range according to the vehicle speed and the like.

The M range is a range for switching the gear ratio by a driver's operation. In a general automatic vehicle, as shown in the first and second embodiments, the D range is followed by the 3, 2, and L ranges, and the gears are shifted by shifting the shift lever to those ranges. Although the gear ratio is switched, this embodiment is a shift lever device for an automatic vehicle equipped with a sports mode, and has an M range for switching the gear ratio with a feeling similar to that of a manual vehicle. In the M range, when the driver moves the shift lever 85 to the + side, it is switched to the high-speed gear ratio, and when it is moved to the − side, it is switched to the low-speed gear ratio.

As shown in FIG. 17, the base plate 80
A support hole 83 into which the shaft 130 is inserted is formed in the. A shift lever 85 is connected to the shaft 130 via a connecting pin 87. Shift lever 85
Is swingable in the vehicle front-rear direction and the vehicle width direction about the shaft 130 and the connecting pin 87.
A control lever 131 is supported on the shaft 130 adjacent to the shift lever 85 so as to be swingable in the vehicle front-rear direction. A connecting shaft 132 is attached to the lower end of the control lever 131. The connecting shaft 132 is connected to an automatic transmission (not shown) via a rod or a wire cable not shown.

The shift lever 85 is provided with a first flange 133 protruding toward the control lever 131 side. The control lever 131 is formed with an engagement hole 134 that can be engaged with the first flange 133.
In the shift lever 85, the first flange 133 is engaged with the engagement hole 1 until the shift lever 85 moves from the P range to the R, N, and D ranges.
34 is always engaged, and the movement of the control lever 131 is transmitted to the automatic transmission. A holding hole 135 that opens upward is formed at the top of the control lever 131. A holder 136 is held in the holding hole 135 so as to be vertically movable. The holder 136 is biased upward by a spring 137 housed in the holding hole 135. A ball 13 for positioning is provided on the top of the holder 136.
8 is rotatably held. The ball 138 is pressed by a moderation groove (not shown) formed on the base plate 80 side and gives a moderation feeling when the control lever 131 shifts.

As shown in FIG. 17, the position detection switch 5
A support pin 140 is fixed to 2. Support pin 1
A slider 141 is supported by 40 so as to be movable in the vehicle front-rear direction. On one side of the slider 141, a holding groove 142 that is always engaged with the holder 55 of the position detection switch 52 in the vehicle front-rear direction is formed. On the other side of the slider 141, an engagement groove 143 into which the second flange 139 formed on the shift lever 85 can enter is formed. In the slider 141, the engagement groove 143 engages with the second flange 139 when the shift lever 85 is shifted from the D range to the M range. Shift lever 85
Shift lever to the M range, shift lever 85
The holder 55 of the position detection switch 52 is moved in the vehicle front-rear direction by moving the switch to the + position or the-position.

The position detecting switch 52 includes a slider 14
Gear shift command detection means 150 is provided for switching the gear ratio of the automatic transmission by the movement of the holder 55 accompanying the movement of 1. Shift command detection means 150
May be composed of electrical contacts such as the first fixed contact 57 and the second fixed contact 58, or may be composed of a dedicated micro switch or the like. Shift command detection means 150
Is electrically connected to the automatic transmission. In the automatic transmission, the gear ratio is switched according to a command signal from the shift command detecting means 150.

Next, the operation of the third embodiment will be described. When the shift lever 85 is shifted to the P range, the first protrusion 101 of the boss 90 presses the first positioning surface 115 of the switch drive link 110, and the switch drive link 110 swings.
Therefore, the holder 55 of the position detection switch 52 is shown in FIG.
It is possible to electrically detect that the shift lever 85 is in the P range by being positioned at the position F ₁ of 9 and contacting the first fixed contact 57 and the moving contact 56. When the shift lever 85 is shifted from the D range to the M range, the second protrusion 102 causes the switch drive link 11 to move.
Since the second positioning surface 116 of 0 is pressed, the switch drive link 110 swings. Therefore, the holder 55 of the position detection switch 52 is positioned at the position F ₂ in FIG. 19, and the second fixed contact 58 and the moving contact 56 contact each other to electrically detect that the shift lever 85 is in the M range. be able to.

When the shift lever 85 is shifted from the D range to the M range, the engagement between the first flange 133 and the engagement hole 134 is released by the swing of the shift lever 85 in the vehicle width direction. In this state, since the ball 138 engages with the moderation groove on the base plate 80 side, the control lever 131 does not move to the M range side and is held in the same position. Further, since the second flange 139 of the shift lever 85 enters the engaging groove 143 of the slider 141, the shift lever 85 and the slider 141 are engaged with each other in the vehicle front-rear direction.

With the shift lever 85 being shifted to the M range, as shown in FIG.
When is moved to the + position, the holder 55 of the position detection switch 52 is moved to the position X ₁ , and the operation of the shift command detection means 150 causes a signal to be output to the automatic transmission. As a result, the gear ratio of the automatic transmission is switched to the high speed side. As shown in FIG. 21, when the shift lever 85 is moved to the-position,
The holder 55 of the position detection switch 52 moves to the position X ₂ , and the shift command detection means 150 operates to output another signal to the automatic transmission. As a result, the gear ratio of the automatic transmission can be switched to the low speed side.

In the M range, for example, when the gear ratio is switched to the 4th speed, it is possible to switch to the 2nd speed by moving the shift lever 85 twice to the-side. When the shift lever 85 moves to the + side or the − side, the ball 94 attached to the shift lever 85 is pressed against the slope provided on the base plate 80, and a force for returning the shift lever 85 to the M position acts. To do. Therefore, after the shift operation, the shift lever 85 is always returned to the M position. When the shift lever 85 moves to the + and-positions, the switch drive link 110 moves the shift lever 8
It maintains the same posture as when shifting 5 to the M range. In the first and second embodiments, the switch drive link is swingable in the horizontal direction, but the switch drive link is set to swing vertically (the cam surface on which the shift lever contacts the switch drive link is set). It is possible to reduce the size of the shift lever device in the width direction by disposing the position detection switch and arranging the position detection switch vertically.

22 to 37 show a fourth embodiment of the present invention, and particularly show a shift lever device having an M range similarly to the third embodiment. As shown in FIG. 23, the shift lever 201 has a lower end portion connected to the shaft 202 via a connection pin (not shown), and is swingable in the vehicle width direction (Y direction). Shaft 20
2 is supported by the base plate 200 and is rotatable in the vehicle front-rear direction (X direction). As a result, the shift lever 201 can swing in the X direction and the Y direction with respect to the base plate 200. An arm 204 extending in the vertical direction is supported on the shaft 202 so as to be swingable in the X direction.

A connecting hole 205 is formed at the lower end of the arm 204.
Are formed. The lower end of the arm 204 is connected to an automatic transmission (not shown) via a rod (not shown). An engagement hole 206 is formed at the upper end of the arm 204. Shift lever 20
A protrusion 207 that can be engaged with the engagement hole 206 is formed in the first member 1. The protrusion 207 is the shift lever 2 in the D range.
By moving 01 in the Y direction, it is engaged with or disengaged from the engagement hole 206.

The movement of the shift lever 201 in the X direction from the P range to the D range is transmitted to the arm 204 by the engagement of the projection 207 and the engagement hole 206. By shifting the shift lever 201 from the D range to the M range, the engagement between the protrusion 207 and the engaging hole 206 is released, and the movement of the shift lever 201 to the + side or the − side in the M range is transmitted to the arm 204. Not done. The arm 204 has a moderation groove 210 formed on the base plate 200 side.
A roller 211 that comes into contact with is provided to give a feeling of moderation (positioning) to the movement operation of the shift lever 201 in the X direction. When the shift lever 201 is shifted to the M range, the arm 204 is held at the D range position by the moderation groove 210.

The shift lever device includes a shift lever 20.
ECUS / A (ECU subassembly) that detects that 1 is placed in a specific range and controls the solenoid of the shift lock mechanism, the display illumination of the shift pattern, etc.
220 is provided. The ECUS / A 220 has a position detection switch that detects that the shift lever 201 has moved to the + side or − side in the P range, the M range, and the M range. The ECUS / A 220 uses the shift lever 2
A signal output to an automatic transmission via a control circuit (not shown) provided inside based on the 01 shift position, a shift lock mechanism (a solenoid is driven when the shift lever is in the P range and the brake pedal is stepped on). , Which enables shift changes),
It controls the key interlock mechanism (which prevents the engine key from coming out of the key cylinder except when the shift lever is in the P range).

As shown in FIG. 25, ECUS / A220
Operates in conjunction with the position detection mechanism 230 to operate the shift lever 201.
The shift position of is detected. Figure 24 shows
The disassembled state of the position detection mechanism 230 is shown. As shown in FIG. 24, the link 240 is provided with a square hole 241.
The link 250 is provided with a connecting portion 251. Then, the link 240 and the link 250 are connected by inserting the connecting portion 251 into the square hole 241, and the movement around the axis is interlocked. The connecting portion 251 can slide in the square hole 241, so that the link 250 can move in the axial direction with respect to the link 240. A link 260 is fixed to the end of the link 250.

The link 240 is rotatably held by a fixing portion 265 provided on the base plate 200.
The link 250 is rotatably held by a fixing portion 266 provided on the base plate 200. Fixed part 266
A link (not shown) is provided inside the
A pin 267 biased toward 0 is provided. The pin 267 presses the moderation groove 252 formed in the link 250, and gives a moderation feeling when the link 250 moves in the axial direction. The link 240 includes a shift lever 20.
Abutment piece 2 capable of abutting with the first boss 246 formed in
45 are provided. The link 250 is provided with a holding piece 255 engageable with the second boss 256 formed on the shift lever 201. The contact piece 245 comes into contact with the first boss 246 when the shift lever 201 is shifted to the P range. The holding piece 255 is
Second when the shift lever 201 is shifted to the M range
It engages with the boss 256 in the X direction. The link 260 is formed with an abutting surface 261 at the upper end and an abutting surface 262 and an abutting protrusion 263 at the lower end.

The ECUS / A 220 includes a shift lever 2
Position detection switches (microswitches) 271, 272, 273, 274 are provided to detect that 01 is shifted to the P range, the M range, and the + side or − side of the M range. The position detection switch 271 is for P range detection, and the position detection switch 272 is for M range detection. The position detection switch 273 is +
It is for side detection, and the position detection switch 274 is-
It is for side detection. In this embodiment, the shift lever 2
Although independent microswitches are provided for the detection of the P range and the detection of the M range of 01, respectively, a shared switch configuration can be used as in the first and second embodiments.

When the switch for detecting the P range and the switch for detecting the M range are shared, a moving contact is provided on the link 260 side, and a first fixed contact is provided at a position corresponding to the position detecting switch 271. , Position detection switch 272
The second fixed contact is provided at a position corresponding to. Therefore, when the moving contact comes into contact with the first fixed contact due to the movement of the link 260, the shift lever 201
Can be electrically detected to be shifted to the P range, and when the moving contact comes into contact with the second fixed contact, the shift lever 201 is electrically shifted to the M range. Can be detected.

The operation of the fourth embodiment will be described. 25 and 26 show the shift lever 201.
Shows a state in which the range is shifted to a range other than the P range and the M range. In this state, the shift lever 201
Since neither the first boss 246 nor the second boss 256 of the second boss 246 is in contact with the position detection mechanism 230, the link 240
The link 250 is returned to a predetermined position by the urging force of a spring (not shown). Therefore, the position detection switches 271 and 272 do not operate due to the link 260.

27 to 29 show the shift lever 20.
1 has shown the state shifted to P range. When the shift lever 201 is shifted to the P range, the movement of the shift lever 201 in the Y direction causes the first boss 246 to move.
Comes into contact with the contact piece 245, and the link 240 rotates clockwise as shown in FIG. Link 250 is link 2
Since it is connected to 40 around the axis, the link 240
It also rotates clockwise with the movement of. At this time, as shown in FIG. 29, the contact surface 261 of the link 260 contacts the operating lever of the position detection switch 271, so that the position detection switch 271 detects that the shift lever 201 has been shifted to the P range. You can

30 to 33 show the shift lever 20.
1 has shown the state shifted to the M range. When the shift lever 201 is shifted to the M range, the movement of the shift lever 201 in the Y direction causes the second boss 256 to move.
Comes into contact with the bottom surface of the recess of the holding piece 255, and the link 250 rotates counterclockwise as shown in FIG. At this time, as shown in FIG. 32, the contact surface 262 of the link 260 contacts the operating lever of the position detection switch 272, so that the position detection switch 272 detects that the shift lever 201 has been shifted to the M range. You can

Shift lever 20 shifted to the M range
1 can be moved to the + and-sides to raise and lower the gear ratio of the automatic transmission. The left and right sides of the contact protrusion 263 of the link 260 are shown in FIG.
As shown in FIG. 3, since the position detection switches 273 and 274 are arranged, the shift lever 20 in the M range is
By the shift operation of No. 1, each position detection switch 273, 27
4 can each be activated.

34 and 35 show the state in which the shift lever 201 in the M range has been moved to the + side. When the shift lever 201 is moved to the + side, the holding piece 255 engaged with the second boss 256 moves in the X direction (see FIG.
5), the link 260 also moves in the same direction. Therefore, the contact detection protrusion 263 of the link 260 contacts the operation lever of the position detection switch 273, and the position detection switch 273 can detect that the shift lever 201 has moved to the + side. Shift lever 2
When 01 is moved to the-side, as shown in FIGS. 36 and 37, the holding piece 255 engaging with the second boss 256 is held.
Moves in the X direction (left direction in FIG. 37), so link 2
60 also moves in the same direction. Therefore, it can be detected by the position detection switch 274 that the link 260 contact protrusion 263 abuts on the operating lever of the position detection switch 274 and the shift lever 201 moves to the − side.

The position detection switch 27 for detecting the M range even when the shift lever 201 moves to the + and-sides.
2 is maintained in the operating state by the contact with the contact surface 262 of the link 260. In this way, the shift lever 201 is moved to the P range, the M range, the + and-sides by the E
Each position detection switch 2 arranged in CUS / A220
Signals to the automatic transmission, control of the shift lock mechanism and the key interlock mechanism are performed via the control circuit provided in the ECUS / A 220.

38 to 40 show a fifth embodiment of the present invention and correspond to the third aspect. Since a part of the configuration of the present embodiment conforms to that of the second embodiment, the corresponding portions are denoted by the same reference numerals as those of the second embodiment, the description of the conforming portions will be omitted, and only different portions will be described. As shown in FIG. 39, a switch drive rod 301 extending along the outer surface of the base plate 80 is arranged on the outer periphery of the base plate 80. The switch drive rod 301 is composed of a rectangular rod member that extends linearly. The switch drive rod 301 is slidably held by a support portion 310 provided on the base plate 80 side. The switch drive rod 301 is
It is movable only in the vehicle front-rear direction (X direction).

As shown in FIG. 38, a pair of flange portions 312 are formed on the boss portion 90 of the shift lever 85. A roller 313 is rotatably supported on the flange portion 301. A pair of engaging protrusions 306 is formed on the surface of the switch drive rod 310 opposite to the surface facing the roller 313. Each engagement protrusion 306 is engaged with an end portion of a torsion spring 321 held by a fulcrum portion 320 formed on the base plate 80 side. Both ends of the torsion spring 321 are also in contact with stoppers 322 formed on the base plate 80 side. The switch drive rod 301 is urged by the torsion spring 321 so as to always return to the neutral position F ₀ .

Roller 3 of switch drive rod 301
A cam 302 projecting toward the roller 313 is provided at a position facing the roller 13. A first cam surface 303, which is an inclined surface, is formed on one side of the cam 302. On the other side of the cam 302, a second cam surface 304 that is inclined in the opposite direction to the first cam surface 303 is formed. When the roller 313 presses the first cam surface 303 by the shift operation of the shift lever 85 to the P range, the switch drive rod 301 moves in the arrow X ₄ direction. When the roller 313 presses the second cam surface 304 by the shift operation of the shift lever 85 to the three ranges, the switch drive rod 301 moves to the arrow X direction.
It is designed to move in ₅ directions.

A position detecting switch 52 is arranged on the outer peripheral portion of the base plate 80. Position detection switch 5
2 includes a solenoid for releasing the shift lock, a printed wiring board, and the like. As shown in FIG. 39, the position detection switch 52 has a holder 55, a moving contact 56, a first fixed contact 57, and a second fixed contact 58. The holder 55 includes the switch drive rod 301 and the connection hole 30.
The switch drive rod 3 is connected through
It is interlocked with the movement of 01.

Next, the operation of the fifth embodiment will be described. As shown in (b) of FIG. 40, when the shift lever 85 is shifted to the P range, the roller 313 presses the first cam surface 303, which is an inclined surface, so that the switch drive rod 301 moves toward the arrow X ₄ Move in the direction,
The holder 55 of the position detection switch 52 moves to the predetermined position F ₁ . In this state, since the moving contact 56 contacts the first fixed contact 57, the position detection switch 52 detects that the shift lever 85 has been shifted to the P range.

When the shift lever 85 is shifted to the D range, the shift lever 85 passes through the P'range, but when the shift lever 85 is in the P'range, it is shown in FIG. As shown, the roller 313 moves away from the first cam surface 303, so that the switch drive rod 301 returns to the neutral position F ₀ . The fact that the shift lever 85 is in the P'range cannot be grasped by the position detection switch 52, but this can be grasped by the automatic transmission side linked with the shift lever 85. Even when the shift lever 85 is shifted to the D range, as shown in FIG.
Since 3 is separated from the second cam surface 304, the switch drive rod 301 remains returned to the neutral position (a). In this case as well, the fact that the shift lever 85 is in the D range cannot be grasped by the position detection switch 52, but it can be grasped by the automatic transmission side as in the P'range.

As shown in FIG. 40D, when the shift lever 85 is shifted to three ranges, the roller 313 is
Presses the second cam surface 304, the switch drive rod 301 moves in the arrow X ₅ direction, and the holder 55 of the position detection switch 52 moves to the predetermined position F ₂ . In this state, since the moving contact 56 contacts the second fixed contact 58, the position detection switch 52 detects that the shift lever 85 has been shifted to the 3 range.

In the fifth embodiment, since the cam surfaces 303 and 304 are pressed by the roller 313, the frictional resistance on the cam surfaces can be made small, and the operating force for moving the switch drive rod 301 is made small. However, it is possible to simply use the cam surface 3 without using the roller 313.
The configuration may be such that 03 and 304 are pressed. A roller may be provided on the switch drive rod 310 side. In this embodiment, since the fixed contacts 57 and 58 are provided on the same position detection switch 52, only one position detection switch 52 is required. Further, since the position detection switch 52 is provided on the outer peripheral portion of the base plate 80, it is not necessary to lower the position of the detent portion 80a,
The detent portion 80a for positioning the shift lever 85 in each range can be arranged at a position advantageous in strength.

[0072]

【The invention's effect】

(1) According to the shift lever device for an automatic transmission of claims 1 to 3, when the shift lever is in the P range, the moving contact that moves by the movement of the holder contacts the first fixed contact. When the shift lever is located in a specific range other than the P range, the moving contact that moves by the movement of the holder is brought into contact with the second fixed contact, so that only one position detection switch is required. The number of position detection switches can be reduced. (2) According to the shift lever device for an automatic transmission of claims 1 to 3, since the position detection switch is mounted on the outer peripheral portion of the upper base and the base plate, the position detection switch is positioned in each range of the shift lever as compared with the conventional device. It is no longer necessary to lower the position of the detent section. This allows
It is possible to secure a large length from the swing fulcrum of the shift lever to the detent portion. Therefore, when the shift lever is positioned in each range, the force acting on the detent portion can be suppressed to a small level, and the detent portion can have a structure advantageous in strength.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a shift lever device for an automatic transmission according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a detent unit and an upper housing attached to the upper base of FIG.

FIG. 3 is an exploded perspective view of the vicinity of a lever housed in the case of the position detection switch of FIG.

4 is a perspective plan view of the position detection switch of FIG. 1. FIG.

5 is a plan view showing a shift pattern of the shift lever of FIG. 1. FIG.

FIG. 6 is a schematic diagram showing the movement of the position detection switch when the shift lever of FIG. 1 is in the P range.

FIG. 7 is a schematic diagram showing the movement of the position detection switch when the shift lever of FIG. 1 is in the P ′ position.

FIG. 8 is a schematic diagram showing the movement of the position detection switch when the shift lever of FIG. 1 is in the D range.

FIG. 9 is a schematic diagram showing the movement of the position detection switch when the shift lever of FIG. 1 is in three ranges.

FIG. 10 is a schematic diagram showing the movement of the position detection switch when the shift lever of FIG. 1 is in the two ranges.

FIG. 11 is an exploded perspective view of a shift lever device for an automatic transmission according to a second embodiment of the present invention.

FIG. 12 is an enlarged perspective view of the shift lever of FIG.

FIG. 13 is a sectional view taken along the line AA of FIG.

14 is a perspective plan view showing a movement locus of the switch drive link in the apparatus of FIG. 11. FIG.

FIG. 15 is a perspective plan view showing the movement of the switch drive link when the shift lever in the device of FIG. 11 is shifted to the P range.

16 is a perspective plan view showing the movement of the switch drive link when the shift lever in the device of FIG. 11 is shifted to three ranges.

FIG. 17 is an exploded perspective view of a shift lever device for an automatic transmission according to a third embodiment of the present invention.

FIG. 18 is a schematic diagram showing a shift pattern in the apparatus of FIG.

FIG. 19 is a plan view when the shift lever in the device of FIG. 17 is shifted to the M range.

20 is a plan view when the shift lever in the apparatus of FIG. 17 is shifted to the + side of the M lens.

21 is a plan view when the shift lever in the apparatus of FIG. 17 is shifted to the − side of the M range.

FIG. 22 is a plan view of a shift lever device for an automatic transmission according to a fourth embodiment of the present invention.

23 is a front view of the main parts of the apparatus of FIG. 22. FIG.

24 is an exploded perspective view of a position detection mechanism in the device of FIG.

25 is a perspective view of a position detection mechanism when the shift lever in the device of FIG. 22 is shifted to a range other than the P range and the M range.

26 is a cross-sectional view of the movement of the link of the position detection mechanism of FIG. 25 as seen from the α direction.

27 is a perspective view of the position detection mechanism when the shift lever in the device of FIG. 22 is shifted to the P range.

28 is a sectional view of the position detection mechanism of FIG. 27.

29 is a cross-sectional view of the movement of the link of the position detection mechanism of FIG. 27 as seen from the β direction.

30 is a perspective view of the position detection mechanism when the shift lever is shifted to the M range in the apparatus of FIG. 22.

31 is a sectional view of the position detection mechanism of FIG. 30.

32 is a cross-sectional view of the movement of the link of the position detection mechanism of FIG. 30, as seen from the γ direction.

33 is a cross-sectional view of the position detection mechanism of FIG. 30 seen from the front direction.

34 is a perspective view of the position detection mechanism when the shift lever in the device of FIG. 22 is shifted to the + side of the M range.

35 is a cross-sectional view of the position detection mechanism of FIG. 34 seen from the front direction.

FIG. 36 is a perspective view of the position detection mechanism when the shift lever in the device of FIG. 22 is shifted to the − side of the M range.

37 is a cross-sectional view of the position detection mechanism of FIG. 36 seen from the front direction.

FIG. 38 is a perspective view of essential parts of a shift lever device for an automatic transmission according to a fifth embodiment of the present invention.

39 is a schematic diagram showing the movement of the switch drive rod by the shift operation of the shift lever of the apparatus of FIG. 38. FIG.

FIG. 40 is a schematic diagram showing the relationship between the movement of the switch drive rod and the movement of the position detection switch in the apparatus of FIG. 38.

FIG. 41 is a plan view showing a shift pattern of a shift lever in a conventional gate-type automatic transmission shift lever device.

42 is a plan view showing an operating state of the position detection switch when the P range of FIG. 41 has a shift lever.

43 is a plan view showing an operating state of the position detection switch when there are shift levers in the three ranges of FIG. 41. FIG.

FIG. 44 is a cross-sectional view of a main part of a conventional shift lever device for a gate type automatic transmission.

[Explanation of symbols]

 20 Lower Base 26 Upper Base 30 Shift Lever 35 First Engagement Part 36 Boss Part 40 Detent Plate as Detent Part 52 Position Detection Switch 55 Holder 56 Moving Contact 57 First Fixed Contact 58 Second Fixed Contact 61 Switch Drive Link Reference numeral 65 Cam surface 66 Second engaging portion 80 Base plate 85 Shift lever 101 First protrusion 102 Second protrusion 110 Switch drive link 301 Switch drive rod 303 First cam surface 304 Second cam surface

Claims (3)

[Claims] 1. A shift lever attached to a lower base and capable of swinging in a vehicle front-rear direction and a vehicle width direction; an arm portion provided on the shift lever, the arm portion having a first engaging portion; and fixed to the lower base. An upper base provided with a detent portion capable of positioning the shift lever in each range, and a cam surface attached to the upper base swingably and capable of contacting a boss portion of the shift lever on one side. A switch drive link having a second engagement portion on the other side, and a first engagement portion of the arm portion and a second engagement portion of the switch drive link that are attached to the outer peripheral portion of the upper base. A possible holder, a moving contact that moves by the movement of the holder along with the movement of the arm portion and the switch drive link, and a state in which the shift lever is positioned in the P range. A first fixed contact is in contact with the moving contact,
A position detection switch having a second fixed contact that contacts the moving contact when the shift lever is positioned in a specific range other than the P range; Lever device. 2. A shift lever swingable in a vehicle front-rear direction and a vehicle width direction, a base plate having a detent portion for supporting the shift lever and capable of positioning the shift lever in each range, and provided on the shift lever. A first boss having a first protrusion and a second protrusion, and a boss that is swingably provided on the base plate and is pressed by the first protrusion when the shift lever is shifted to the P range. It has a positioning surface of
When shifting to a specific range other than the range, the second
And a switch drive link having a second positioning surface that is pressed by the projections, and is connected to the switch drive link that is provided on the outer peripheral portion of the base plate and that is positioned at a predetermined swing angle by the pressing by the projections. Holder, a moving contact that moves by the movement of the holder accompanying the movement of the switch drive link, a first fixed contact that contacts the moving contact when the shift lever is positioned in the P range, and the shift. A shift lever device for an automatic transmission, comprising: a position detection switch having a second fixed contact that contacts the moving contact when the lever is positioned in a specific range other than the P range. . 3. A shift lever swingable in a vehicle front-rear direction and a vehicle width direction, a base plate having a detent portion for supporting the shift lever and capable of positioning the shift lever in each range, and movable to the base plate. The first lever of the shift lever is provided when the shift lever is shifted to the P range.
When the shift lever is shifted to a specific range other than the P range, the shift lever is moved in a predetermined direction by pressing the cam surface of the shift lever, and the shift lever is moved in a direction opposite to the predetermined direction by pressing the second cam surface. Switch drive rod, a holder provided on the outer peripheral portion of the base plate and connected to the switch drive rod, a moving contact that moves by the movement of the holder accompanying the movement of the switch drive rod, and the shift lever that has the P range. A first fixed contact that comes into contact with the moving contact when the shift lever is positioned at a predetermined range, and a second fixed contact that comes into contact with the moving contact when the shift lever is positioned at a specific range other than the P range. A shift lever device for an automatic transmission, comprising: a position detection switch having: