JPH06249327A - Shift lever device - Google Patents

Abstract

PURPOSE:To improve operability of a shift lever by preventing occurrence of erroneous operation of a key interlock mechanism, and improving function of the key interlock mechanism. CONSTITUTION:In a shift lever device E, first and second operation members 41, 42 composing a lock mechanism 40 are axially fixed on the side of a position plate 10. The respective portions on the side of a position pin 31 of the members 41, 42 are attracted to each other through energizing. At this time, the position pin 31 in a parking position P, is sandwiched by means of the position-pin side portions of the operation members 41, 42 in a press-contact condition. A key lock cable 61 interlocked with a key interlock mechanism 60 is connected to the other side of the first operation member 41. The second operation member 42, when the position pin 31 is in the parking position P, is axially fixed to the side of the position plate 10 in a lock member 43 so as to fix the position pin, which member 43 is operated by an actuator 44.

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, and more particularly to a shift lever device for an automatic transmission for a vehicle having a shift lever lock mechanism and a key interlock mechanism linked to the lock mechanism.

[0002]

2. Description of the Related Art A shift lever device of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 60-135352.
As shown in FIG. 4, a position pin 2 is attached to a shift lever 1 whose base 1a is pivotally mounted on a machine frame 7 so as to be vertically movable. The position pin 2 is always biased upward, and is set to be pushed down by pushing a knob button (not shown) attached to the upper portion of the shift lever 1. Further, when the position pin 2 is at the parking position P of the position groove 3a formed in the position plate 3, the bell crank 4 having the engagement groove 4a that engages with the position pin 2 is not attached to the position plate 3
The bell crank 4 is constantly urged to rotate clockwise. Further, a key lock cable 6 linked with a key interlock mechanism (not shown) is connected to the bell crank 4.

[0003]

However, in the above-mentioned conventional shift lever device, the shift lever 1 is shifted from the parking position P in a state where the engine key is removed from the key interlock mechanism, that is, in the steering lock state. When the knob button is pushed to change and the position pin 2 is pushed down, the bell crank 4 rotates clockwise. For this reason, an unreasonable load is applied to the key lock cable 6 to cause elongation, and in the worst case, the key interlock mechanism may be unlocked.

Further, the engaging groove 4a of the bell crank 4 is provided in order to smoothly operate the position pin 2 in the vertical direction.
The groove width is set to be larger than the diameter of the position pin 2. Therefore, play occurs between the position pin 2 and the engagement groove 4a, and this play becomes play when the key lock cable 6 is pushed or pulled by the bell crank 4, and the function of the key interlock mechanism is deteriorated. There was a problem of letting it.

Further, the position pin 2 and the bell crank 4 are biased in opposite directions, and the biasing force on the position pin 2 side must be made stronger than the biasing force on the bell crank 4 side. Therefore, there is a problem that the operation force of the knob button becomes large and the operability of the shift lever 1 deteriorates.

The present invention has been made to solve the above-mentioned problems of the prior art. The object of the present invention is to prevent malfunction of the key interlock mechanism and to improve its function, and further to shift the shift. It is an object of the present invention to provide a shift lever device having good lever operability.

[0007]

In order to achieve the above object, the present invention has a position pin which can be engaged with and disengaged from a plurality of position grooves formed in a position plate and is always biased upward. A shift lever device comprising: a shift lever mounted on a shaft; a lock mechanism for preventing the position pin from descending when the shift lever is positioned at a parking position; and a key interlock mechanism linked with the lock mechanism. The first actuating member and the second actuating member that constitute the lock mechanism are axially attached to the position plate side, respectively. A pressure pinch on the position pin side of each of the actuating members. A key lock cable that is linked to the key interlock mechanism is connected to the side, and a lock member that is operated by an actuator so as to fix the second operation member or the position pin when the position pin is in the parking position. It is characterized in that it is axially attached to the position plate side.

[0008]

When the engine key is removed from the key interlock mechanism and the position pin at the parking position is pushed down to move to the traveling position, the position pin is lowered by the second actuating member fixed by the lock member. Alternatively, it is blocked by the lock member. At this time, the load acting on the position pin is only applied to the second actuating member or the lock member, and only a slight load is applied to the first actuating member. Therefore, the key lock cable does not operate, and the key interlock mechanism does not operate. Malfunctions can be prevented.

Further, since the position pin in the parking position is pressed and sandwiched by the first and second operating members, there is no play between the position pin and the first and second operating members, and the key lock cable is Thus, the key interlock mechanism can be operated reliably.

Further, since the biasing force in the opposite direction does not act on the position pin, the operating force of the shift lever for actuating the position pin can be made as small as possible, thereby operating the shift lever. It is possible to improve the property.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A shift lever device according to the present invention will be described below with reference to the embodiments shown in the drawings.

1 to 9 relate to a first embodiment of the present invention. FIG. 1 is a front view explanatory view showing a cutout portion of a shift lever device of an automatic transmission for a vehicle, and FIG. 3 is an explanatory view showing a state at the time of unlocking, FIG. 3 is an explanatory view showing a state at the time of unlocking, and FIGS. 4 to 9 are operation explanatory views of the lock mechanism.

In the figure, E is a shift lever device of an automatic transmission for a vehicle, which has a position pin 31 which can be engaged with and disengaged from a plurality of position grooves 10a formed in a position plate 10 and which is always biased upward. A shift lever 30 pivotally attached to the frame 20, a lock mechanism 40 that prevents the position pin 31 from descending when the shift lever 30 is located at the parking position P, and a key interlock mechanism 60 that is linked to the lock mechanism 40. I have it.

In the first embodiment of the present invention, in particular, the first actuating member 41 and the second actuating member 42 constituting the lock mechanism 40 are axially attached to the bracket 11 attached to the position plate 10, respectively. The position pin 31 is biased toward each other so that the position pin 31 when in the parking position P is press-contacted and clamped by the position pin 31 side of each operating member 41, 42, and the first operation is performed. The key lock cable 6 linked to the key interlock mechanism 60 on the other side of the member 41.
1 and the lock member 43 that is operated by the actuator 44 so as to fix the second operation member 42 when the position pin 31 is in the parking position P.
Is attached to the bracket 11 by a shaft.

Further, the structure of the first embodiment of the present invention will be described in detail.

The position plate 10 is attached to a machine frame 20 fixed to the vehicle body, and a position groove 10a is formed near the outer peripheral edge thereof. This position groove 1
In 0a, grooves are formed at positions corresponding to parking, reverse, neutral, drive second speed, and first speed, respectively, and the leftmost position groove 10a in FIG. 1 is the parking position P.

Note that, hereinafter, each position other than the parking position P is generically called a traveling position.

The shift lever 30 is pipe-shaped, and its base is pivotally attached to the machine frame 20 by a pivot 32. The position pin 31 is embedded in a rod (not shown) inserted in the shift lever 30 so as to be slidable in the axial direction, and the rod is constantly biased upward by a compression spring (not shown). A knob 33 is fixed to the upper part of the shift lever 30, and a knob button 34 is slidably provided in the knob 33 by partially protruding the knob button 34 to the outside. The position pin 31 is configured to move downward by being pressed against.

The lock mechanism 40 is attached to the position plate 10 as a unit on the bracket 11.
The first operating member 41, the second operating member 42, the lock member 43, and the actuator 44 are provided.

The first actuating member 41 is formed in the shape of a bell crank, and its base is pivotally attached to the bracket 11 by a pivot 45. One arm portion 41 extending to the position pin 31 side
The lower surface of b is arranged at a position where it abuts the position pin 31 when in the parking position P, and at the tip of the other arm portion 41c, one end of a key lock cable 61 linked to the key interlock mechanism 60. Are connected and supported.

The second actuating member 42 has its base portion coaxially or separately provided with the first actuating member 41, and in this embodiment, is pivotally attached to the bracket 11 by means of a pivot shaft 45, which extends from the base portion to the position pin 31 side. The extended arm portion 42b faces the arm portion 41b of the first actuating member 41 and is arranged below. Further, as shown in FIG. 5, the arm portion 42b is formed with a protrusion 42d protruding toward the lock member 43 side.

The arm portion 41b of the first actuating member 41 and the arm portion 42b of the second actuating member 42 are biased by a torsion coil spring 46 wound around a pivot 45 so as to be attracted to each other. The position pin 31 at the parking position P is configured to be press-contacted and clamped by the arms 41b and 42b.

The lock member 43 is formed in a bell crank shape as shown in FIG. 5, and has its base portion pivotally attached to the bracket 11 by a pivot shaft 47 orthogonal to the pivot shaft 45. A long hole 43c is formed in one arm portion 43b of the lock member 43, and a hook portion 48a of a plunger 48 of an actuator 44 described later is engaged with the long hole 43c. The other arm 43d of the lock member 43 is configured to move to a position facing the lower surface of the protrusion 42d of the second actuating member 42 when in the parking position P as the lock member 43 rotates. ing. Further, a protrusion 41d is formed on the first actuating member 41 facing the arm 43b.

Solenoid 44 as an actuator
Is fixed to the position plate 10, a plunger 48 biased by a compression spring (not shown) so as to project outward is slidably incorporated therein, and a hook formed at the tip of the plunger 48. The portion 48a is engaged with the long hole 43c of the arm portion 43b of the lock member 43 as shown in FIG.

When the lever welded to the shift lever 30 comes into contact with a contact of a micro switch (not shown), the solenoid 44 is in an excited state, that is, in an ON state, the plunger 48 is attracted, and the lock member 43 is locked. At the parking position P by rotating the arm portion 43d in the clockwise direction at
It is configured to be moved to a position facing the lower surface of the protrusion 42d.

When the brake pedal is depressed when the vehicle starts, the solenoid 44 is in the non-excited state, that is, the OFF state, the plunger 48 is projected outward by the spring force of the compression spring, and the lock member 43 is rotated counterclockwise. ,
The arm 43d is retracted from the lower surface of the protrusion 42d of the second operating member 42 when in the parking position P.

A cylinder lock 60 as a key interlock mechanism is provided with a key rotor 63 inside a key cylinder 62, which is rotated by inserting an engine key and turning it. The key rotor 63 allows the engine key to be removed and inserted by operating the engine key, and the lock position LOCK in the state where the engine key is removed, that is, the steering lock state, and the electrical components can be used although the engine is stopped. Accessory position ACC and on position O when the engine is starting
N and start position S to start the engine
It can be rotated to TART.

Further, inside the key cylinder 62, a stopper 64 connected to the first actuating member 41 via a key lock cable 61 is provided. As shown in FIG. 3, the stopper 64 turns on the on-position of the key rotor 63.
When it is in the lock position that restricts the rotation from the side to the lock position LOCK, the key lock cable 61 is pushed, and therefore the key cylinder 62 is located deep inside.

Further, as shown in FIG. 2, the first operating member 4
The position pin 3 1 is located at the parking position P by the cooperation of the second operating member 42 and the lock member 43.
When the key lock cable 61 is pulled, the stopper 64 moves downward to the unlock position where the key rotor 63 is allowed to rotate.

Further, the key rotor 63 has a restricting portion 63 for restricting the movement of the stopper 64 to the lock position when the key rotor 63 is rotated to the lock position LOCK.
a is provided. Reference numeral 63b is a position restricting portion at the lock position of the stopper 64 formed on the key rotor 63.

In the above embodiment, the lock mechanism 4
The first actuating member 41, the second actuating member 42, and the lock member 43, which constitute 0, may be directly attached to the position plate 10.

Next, the operation of the first embodiment of the present invention will be described.

First, the operation of the lock mechanism 40 will be described.

When the shift lever 30 in the traveling position is moved to the parking position P while pressing the knob button 34, first, the position pin 3 is moved as shown in FIG.
1 contacts the upper surface of the arm portion 42b of the second actuating member 42. Further, in this state, the solenoid 44 is in the OFF state, and the plunger 48 is biased so as to project outward.
As shown in, the arm 43d of the lock member 43 is held at a position retracted from the lower surface of the protrusion 42d of the second actuating member 42.

Further, when the shift lever 30 is moved to the parking position P side, the position pin 31 pushes down the arm portion 42b of the second actuating member 42 against the spring force of the torsion coil spring 46 as shown in FIG. While moving to the lower side of the parking position P.

Then, as shown in FIG. 7, when the position pin 31 reaches the lower side of the parking position P, the position pin 31 is moved by the arm portion 41b of the first operating member 41 and the arm portion 42b of the second operating member 42. Is pressed and pinched.
In this state, only the spring force of the compression spring of the shift lever 30 acts on the knob button 34.

When the knob button 34 is released, the position pin 31 is engaged with the upper end of the position groove 10a at the parking position P by the spring force of the compression spring as shown in FIG. At the same time, the lever of the shift lever 30 comes into contact with the contact of the micro switch to excite the solenoid 44 and attract the plunger 48. As a result, the lock member 43 rotates clockwise, and the arm portion 43d moves to a position facing the lower surface of the protrusion 42d of the second actuating member 42 as shown in FIG.

Next, the operation of the key interlock mechanism 60 will be described.

(A) During parking (locked state) When the shift lever 30 is shifted to the parking position P and the engine key is removed from the cylinder lock 60 during parking, as shown in FIG. 31 is pressed and sandwiched by the arm portion 41b of the first operating member 41 and the arm portion 42b of the second operating member 42. Further, although the solenoid 44 is OFF, the projection 41d of the first actuating member 41 presses the arm 43b of the lock member 43 to rotate the lock member 43 clockwise, and the arm 43d moves to the first position. 2 Move to a position facing the lower surface of the projection 42d of the operating member 42, and shift lever 3
0 is locked.

In this state, in order to unlock the shift lever 30, the knob button 34 is pushed to move the position pin 3
Even if 1 is moved downward, the movement is restricted by the second operating member 42 fixed by the lock member 43. As a result, the shift lever 30 cannot be shifted from the parking position P to the traveling position.

In this way, with the engine key removed, the position pin 31 at the parking position P is
Even if an attempt is made to push down to move to the traveling position, the lowering of the position pin 31 is prevented by the cooperative action of the second operating member 42 and the lock member 43.

At this time, the load acting on the position pin 31 is only applied to the second operating member 42 and the lock member 43, and the first operating member 41 is only applied with a slight load by the torsion coil spring 46. . As a result, the key lock cable 61 does not operate, and malfunction of the key interlock mechanism 60 can be prevented.

(B) At the start of traveling When traveling is to be performed, first, the engine key is inserted into the cylinder lock 60 and the key rotor 63 is rotated in the ON position ON direction. As a result, the regulation unit 63
Although a is retracted from the position of the stopper 64 in the sliding direction and the stopper 64 can move upward (FIG. 3), the first operating member 41 is pressed by the position pin 31 and
It is held in the position shown in.

In this state, when the engine is started and the brake is depressed, the solenoid 44 is turned off, the plunger 48 projects outward to rotate the lock member 43 in the counterclockwise direction, and the arm portion 43d of the arm member 43d. 42 of 42
d Retreat from the lower surface.

Here, when the position button 31 is lowered by pressing the knob button 34, the stopper 64 can be moved upward, so that the first operating member 41 and the second operating member 42 rotate clockwise. Then, the shift lever 30 can be shifted from the parking position P to the traveling position, and the vehicle can be driven.

To remove the engine key from the above running state, the shift lever 30 is shifted from the running position to the parking position P. Then, the lever of the shift lever 30 comes into contact with the contact of the micro switch, the solenoid 44 is turned on, the plunger 48 is attracted, and the lock member 43 rotates clockwise, and the arm portion 43d thereof.
Contacts the lower surface of the protrusion 42d of the second actuating member 42, which holds the position pin 31 in the parking position P with pressure. At the same time, the stopper 64 is pulled by the first actuating member 41 via the key lock cable 61 to move to the unlock position, and the lock position LO of the key rotor 63 is reached.
It becomes possible to turn to CK and the engine key can be removed at this point.

According to the above-described embodiment, even when the engine key is removed from the key interlock mechanism 60 and the position pin 31 at the parking position P is pushed down to move to the traveling position, the position pin 31 is lowered. Is the second fixed by the lock member 43.
It is blocked by the operating member 42. At this time, position pin 3
The load acting on No. 1 is applied only to the second actuating member 42, and only a slight load is applied to the first actuating member 41. Therefore, the key lock cable 61 does not operate and the malfunction of the key interlock mechanism 60 is prevented. be able to.

Further, the position pin 31 in the parking position P is connected to the first and second actuating members 41, 42.
Since there is no pressure between the position pin 31 and the first and second actuating members 41, 42, the key interlock mechanism 60 can be reliably actuated via the key lock cable 61. Therefore, the function of the key interlock mechanism 60 can be improved.

Further, since the biasing force in the opposite direction does not act on the position pin 31, the biasing force for biasing the position pin 31 upward can be made as small as possible. As a result, the operating force of the knob button 34, that is, the operating force of the shift lever 30 can be reduced as much as possible, and the operability of the shift lever 30 can be improved.

10 to 13 relate to the second embodiment of the present invention, and FIG. 10 is an exploded perspective view of the lock mechanism, FIG.
1 is an explanatory plan view of a main part of the lock mechanism, FIG. 12 and FIG.
[Fig. 7] is an operation explanatory view of a lock mechanism.

In this second embodiment, the lock member 43 is pivotally mounted on the pivot 49 in the same direction as the pivots 45 of the first actuating member 41 and the second actuating member 42, and a circle centered on the pivot 49 on the upper surface. An arc-shaped lock portion 43e is formed.

Then, as shown in FIG. 12, the position pin 31 at the parking position P is set to the second position.
It is configured to be directly locked by the lock portion 43e of the lock member 43 without using the actuation member 42.

To unlock the lock mechanism 40 from the state shown in FIG. 12 as shown in FIG. 13, the solenoid 44 is turned off and the plunger 48 is projected outward in the same manner as in the first embodiment, and the lock member is locked. This is performed by rotating 43 in the clockwise direction.

The other structure and operation are similar to those shown in the first embodiment, and the description thereof will be omitted.

[0055]

As described above, according to the present invention, when the key lock cable is locked, that is, when the position pin is in the parking position, the load that pushes down the position pin locks with the second operating member. Only a small load is applied to the first actuating member by being applied to the member. As a result, the key lock cable does not operate, and the malfunction of the key interlock mechanism can be prevented.

Further, since the play between the position pin and the first and second actuating members at the parking position can be eliminated, the key interlock mechanism can be reliably actuated via the key lock cable, The function of the interlock mechanism can be improved.

Further, since the biasing force in the opposite direction does not act on the position pin, the operating force of the shift lever for operating the position pin can be made as small as possible. As a result, the operability of the shift lever can be improved.

[Brief description of drawings]

FIG. 1 is a front view explanatory view showing a cutout portion of a shift lever device of an automatic transmission for a vehicle according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state when the one shown in FIG. 1 is locked.

FIG. 3 is an explanatory diagram showing a state at the time of unlocking the same.

FIG. 4 is also an operation explanatory view of the lock mechanism.

FIG. 5 is an explanatory view of the operation of the lock mechanism of the same.

FIG. 6 is an explanatory view of the operation of the lock mechanism of the same.

FIG. 7 is an explanatory diagram of the operation of the lock mechanism of the same.

FIG. 8 is an explanatory diagram of the operation of the lock mechanism of the same.

FIG. 9 is an explanatory view of the operation of the lock mechanism of the same.

FIG. 10 is an exploded perspective view showing the lock mechanism according to the second embodiment of the present invention.

FIG. 11 is an explanatory plan view of a main part of what is shown in FIG.

FIG. 12 is also an operation explanatory diagram.

FIG. 13 is an explanatory diagram of the same operation.

FIG. 14 is an explanatory front view showing an outline of a shift lever device according to a conventional example.

[Explanation of symbols]

 E Shift lever device of automatic transmission for vehicle P Parking position 10 Position plate 30 Shift lever 31 Position pin 40 Lock mechanism 41 First operating member 41b Arm 41c Arm 42 Second operating member 42b Arm 42d Projection 43 Lock member 43b Arm part 43d Arm part 43e Lock part 44 Actuator (solenoid) 46 Torsion coil spring 48 Plunger 60 Key interlock mechanism (cylinder lock) 61 Key lock cable 62 Key cylinder 63 Key rotor 64 Stopper

Claims (1)

[Claims] 1. A shift lever axially attached to a machine frame, which has a position pin that can be engaged with and disengaged from a plurality of position grooves formed in a position plate and is always urged upward, and the shift lever is set to a parking position. A lock mechanism that prevents the position pin from falling when it is positioned,
A shift lever device comprising a key interlock mechanism linked to this lock mechanism, wherein a first actuating member and a second actuating member constituting the lock mechanism are axially attached to the position plate side, and their respective positions are adjusted. The position pins in the parking position are urged so as to draw the pin sides toward each other, and the position pins are press-contacted and held by the position pin sides of the respective operating members, and the position pins are provided on the other side of the first operating member. A key lock cable that is linked to a key interlock mechanism is connected, and a lock member that is actuated by an actuator so as to fix the second operation member or the position pin when the position pin is in the parking position is provided at the position. A shift lever device, which is pivotally attached to the plate side.