JP2583376B2 - Park lock device with key interlock for shift lever device for automatic transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to prevent a shift operation from being performed without stepping on a play pedal when starting from a parking state, and to shift a shift lever body to a parking position when parking from a stop. The present invention relates to a parking lock device with a key interlock for a shift lever device for an automatic transmission in which a key is released from a key cylinder only when restrained.

[0002]

2. Description of the Related Art In general, in a shift lever device of an automatic transmission, by shifting a shift lever body back and forth, each position of traveling including parking and retreating from a neutral position where power is cut off can be changed. Each is obtained.

On the other hand, erroneous operations are liable to occur because of easy operation. For this reason, when parking and getting out of a car, a key is not removed unless the shift lever is in a parking position. A number of safety measures have been proposed to prevent a shift operation from being performed without stepping on a brake petal when starting.

[0004] However, the structure becomes complicated, which is not desirable in terms of assembly and cost.
In addition, it is an independent single safety means, and there is no proposal of a plurality of combined safety means.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a parking lock device with a key interlock for a shift lever device for an automatic transmission, which has a simple structure and provides a plurality of safety means.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a shift lever body pivotally attached to a base member and capable of shifting to each position, and a pressing portion provided at an upper end of the shift lever body. An operation knob having an operating rod having a positioning groove for positioning a parking and running position, the operating rod being linked to the pressing portion and moving up and down in the shift lever body, and being formed on the shift lever body. A shift pin device for an automatic transmission, the shift lever device having a position pin extending out of a vertically long guide hole and facing a positioning groove of the position plate. Switching from the second operating position to the first operating position via the position pin when the lever body is in the parking position. Both the on-off can of the key cylinder turned off by the key operation, the movement from the first actuating position to the second operating position is prevented, when on the key cylinder,
A key lock member that is allowed to move from the first operation position to the second operation position, and a state in which the key cylinder is off, the brake pedal is not depressed and the brake switch is off,
A shift lock position that restricts the movement of the position pin of the shift lever body, and a shift lock release position that releases the restriction of the position pin when the brake petal is depressed and the brake switch is on with the key cylinder on. A switchable shift lock member and a key cylinder control member that is connected to the key lock member and that prevents the key cylinder from being turned off when the key lock member is in the second operating position are assembled together.

[0007]

According to the parking lock device with the key interlock, if the shift lever body is not shifted to the parking position when the vehicle is stopped and parked, the key lock member is in the second operating position, and the key cylinder control is performed. The member disables the off operation of the key cylinder. Therefore, the key cannot be removed, and the shift operation of the shift lever body to the parking position is prompted. Accordingly, the shift lever main body is shifted to the parking position, and at the same time when the shift operation is completed, the key lock member becomes the first operating position, and the key can be turned off by the key.

Next, if the brake pedal is not depressed when starting from parking, the brake switch is in the OFF state, so that the shift lock member remains at the shift lock position, and the movement of the position pin is restricted. Therefore, the shift operation of the shift lever main body becomes impossible.

On the other hand, when the brake pedal is depressed, the brake switch is turned on and the shift lock member is switched from the shift lock position to the shift lock release position, so that the regulation of the position pin is released and the shift operation of the shift lever body is possible. Becomes

In this case, the functional components need only be the key lock member, the shift lock member, and the key cylinder control member, and the structure can be simplified.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a shift lever main body of the shift lever device 3, and the shift lever main body 1 projects upward from a guide groove 7 formed in a top plate of the indicator main body 5. An operation knob 9 is provided at the upper end of the shift lever main body 1 projecting upward from the guide groove 7. The lower main shaft 11 is rotatably mounted and supported by a lever shaft 15 extended downward from a base member 13 mounted on the floor panel 14 and supported at both ends. Therefore, the shift lever body 1 can perform a shift operation in the front-back (arrow A) direction with the lever shaft 15 as a fulcrum.

The lever shaft 15 is connected to the opening 1 of the base member 13.
3a, it is set at a position lower than the floor panel 14 so as to be compatible with F / F vehicles in which the height of the console box 14 is formed low. The lever shaft 15 is attached to the previous opening 13a. The cover 17 is covered with the cover 17 to prevent splash, dust and the like from entering from below.

On the other hand, a flat position pin 21 projecting to both sides is provided in the shift lever main body 1 to prevent stress concentration from acting on the contact surface by surface contact. The position pin 21 is supported by an operation rod 25 that is linked to a pressing portion 23 provided on the operation knob 9.

The pressing portion 23 is vertically movably assembled to the upper end opening of the operation knob 9, and the upper end of the operating rod 25 is in contact with the inside. The operating rod 25 is made of synthetic resin and has a cross-shaped cross section to reduce the weight, and a flange portion 26 is provided at an intermediate portion. The flange portion 26 functions to prevent buckling of the operating rod 25 by contacting the inner peripheral surface of the shift lever main body 1 during operation.

The position pin 21 is penetrated and supported by a rod holding member 27 provided at the lower end of the operating rod 25, and both ends thereof are passed through vertical guide holes 29 formed in the peripheral wall surface of the shift lever body 1. Projecting outside. One end of the position pin 21 is the position plate 3
The key lock member 37 of the park lock structure 35 with a key interlock described later is extended to one side and faces the positioning groove 33 of the position plate 31.
It is linked and linked. The other end of the position pin 21 extends to the check plate 39 side.

The rod holding member 27 is urged upward by an urging spring 41 provided at the bottom. Accordingly, the operating rod 25 disposed along the internal space of the shift lever main body 1 is urged upward and presses the pressing portion 23 with a finger against the spring pressure of the urging spring 41 with the finger F. By doing so, the downward movement of the operating rod 25 is ensured, and the shift operation of the shift lever main body 1 becomes possible.

The position plate 31 is a base member 13
5 and the upper edge of the positioning groove 33 is
Parking P, Reverse R, Neutral N, Drive D from right
Of each position.

The check plate 39 is fixed to the base member 13 as shown in FIG. 4 and has check ridges 43 provided at predetermined intervals on the outer peripheral edge. A check roller 45 acts on the check ridges 43. Check roller 45
Are supported at both ends by a pivot arm 51 which can pivot up and down with a pivot pin 49 as a fulcrum on a support bracket 47 fixedly engaged with the shift lever body 1, and the tip of the pivot arm 51 is a biasing spring 53. Is constantly urged downward toward the check mountain 43 side. The support bracket 47
A drive wire (not shown) interlockingly connected to the operating lever on the automatic transmission side is attached to the mounting bolt 47a of
Will be combined. Thereby, at the time of the shift operation of the shift lever body 1, when the check roller 45 gets over the check mountain 43, a sense of moderation at the time of the shift operation is given.

Park lock device 35 with key interlock
Are a key lock member 37, a shift lock member 55,
It has a key cylinder control member 57 and is integrally attached to an attachment member 59 attached to the base member 13 to form a unit as shown in FIG.

The key lock member 37 has a projection 61 and is constantly urged clockwise by an urging spring 63 with the mounting shaft 37a as a fulcrum, and has an arcuate engagement surface inside the position pin 21 of the shift lever body 1. 37b. Therefore, at the parking position P of the shift lever main body 1, counterclockwise rotational power is given by the position pin 21 which engages with the engagement surface 37b and rises, so that the key lock member 37 is moved from the second operating position A2. Switching to the first operating position A1 is possible.

The shift lock member 55 has a shift lock position B1 in which the stopper surface 54 faces the parking position P with the mounting shaft 55a as a fulcrum as shown in FIG. 6 and a shift lock position B1 in which the stopper surface 54 is in the parking position P as shown in FIG. It is possible to switch to the shift lock release position B retracted from the position. The shift lock member 55 is in the shift lock position B
The protrusion 61 is in contact with the rising rib 65 provided on the front surface when the gear is rotated from the first position to the shift lock release position B.
And linked with the key lock member 37 via
Switching between a shift lock position B1 and a shift lock release position B is controlled by turning on and off the solenoid SL.

That is, the rod 67 connected to the shift lock member 55 is extended from the solenoid body of the solenoid SL, and the rod 67 is turned on when the solenoid SL is on.
By being pulled (arrow B in FIG. 6), the shift lock member 5
5 is given a movement to the shift lock position B1. When the solenoid SL is turned off, the traction of the rod 57 is released, and the rod 57 is extended by the solenoid urging spring 69 provided in the solenoid body (arrow C in FIG. 5), so that the shift lock member 55 releases the shift lock. The movement to the position B is given.

The solenoid SL is connected to the detection switch KS-1
ON / OFF is controlled by an ON signal and an OFF signal output from the CPU. The detection switch KS-1 outputs an off signal when the shift lever main body 1 is at a position other than the parking position P and when the brake pedal 71 is depressed and an on signal is given from the brake switch SW, and the shift lever main body 1 is parked. The operating arm 6 is shifted to the position P and extended from the shift lever body 1 as shown in FIG.
When the nine arm pins 70 hit the switch terminal S1 of the detection switch KS-1, an ON signal is output.

The key cylinder control member 57 is formed in a rod shape, and has one end pivotally connected to the key clock member 37. The engaging portion 57a at the other end is engageable with a notch 77 provided on the rotary plate 5 of the key cylinder 73. The rotary plate 75 of the key cylinder 73 is
Rotation is enabled by a key operation from an off position to an on position by a key (not shown) inserted into the inside 3.

The notch 77 of the rotating plate 75 and the engaging portion 57a
When the engagement portion 57a is disengaged from the notch 77, the rotation of the key lock member 37 to the second operating position A2 is prevented, and the engagement portion 57a faces the inside of the notch 77. At times, it is impossible to perform an off operation with a key.

When the engagement portion 57a is disengaged from the notch 77 and the key cylinder 73 is turned on, the engagement portion 57a is turned off.
a and the notch 77 can be engaged, and the key lock member 37 is allowed to rotate to the second operating position A2.

In FIG. 1, reference numeral 79 denotes a slide plate having a red child 80; 81, a position dial 83;
, The bulbs that emit light from below are shown.

According to the parking lock device 35 with the key interlock configured as described above, when the unitized mounting member 59 is retrofitted to the base member 13, the parking position P of the shift lever main body 1 can be reduced. The work is quickly completed by positioning and attaching the key lock member 37 to the position where the position pin 21 is engaged with the key lock member 37. In addition, since the number of parts is small and only mechanical elements are used, the structure is simplified.

On the other hand, during running, the solenoid SL is off as shown in FIG.
Is in the shift lock release position B, and the key lock member 37
Is in the second operating position 42. Also, the cylinder control member 5
Since the engaging portion 57a of 7 faces the inside of the cutout portion 77, the off operation by the key is disabled.

Next, in order to park the vehicle with the brake pedal 71 depressed after the vehicle is stopped, the shift lever main body 1 is shifted to the parking position P as shown in FIGS. Since the engagement with the engagement surface 37a of the member 37 is performed, the finger is released from the push button 23 simultaneously with the completion of the shift operation. At this time, as shown in FIG.
The key lock member 3 is moved by the ascending position pin 21.
7 rotates clockwise. At the same time, the shift lock member 55 is rotated to the shift lock position B1 by the projection 61, and the engaging body 57a of the cylinder control member 57 is disengaged from the notch 77.

Therefore, as shown in FIG. 15, the key can be turned off and the key can be removed.

When parking, the brake petals 7
You can park without any trouble without stepping on 1.

That is, as shown in FIG. 20, when the shift lever body 1 is shifted to the parking position P, the solenoid SL is in the ON state, so that the position pin 21 hits the shift lock member 55 at the shift lock position B1, and the shift is performed. The lock member 55 is forcibly shifted to the shift lock release position B.
Rotate to 1. At this time, when the finger is released from the press button 23, the position pin 21 which rises as shown in FIGS.
As a result, the key lock member 37 rotates from the second operation position A2 to the first operation position A1, and the shift lock member 55
The same condition as when parking is performed by rotating to the shift lock position B1 and stepping on the brake petal 71 is secured.

Next, to start from parking, an on operation is performed by a key operation. At the same time, when you step on the brake petal,
As shown in FIG. 18, the solenoid SL is turned off, the shift lock member 55 is moved to the shift lock release position B by the extending rod 67, and the key lock member 37 is moved from the first operating position A1 to the second operating position A2 by the biasing spring 63. Each rotates. Accordingly, the restriction of the position pin 21 is released, and the shift operation of the shift lever main body 1 becomes possible.

In this case, if the brake petal 71 is not depressed when starting from parking, the shift lock member 55 stays in the shift lock position B1 due to the ON state of the solenoid SL as shown in FIG. Is restricted, and the shift operation of the shift lever main body 1 is disabled. Therefore, no erroneous operation occurs.

[0037]

As described above, according to the present invention, unless the shift lever body is shifted to the parking position, the key cannot be turned off, and the shift operation to the parking position during parking is obligatory. Further, when starting from parking, unless the brake petal is depressed, the shift operation becomes impossible and safety is ensured.

On the other hand, the device is composed only of mechanical elements such as a shift lock member, a key lock member and a cylinder control member which are assembled to the mounting member. This is completed by retrofitting the member to the base member, and the workability can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an entire shift lever device for an automatic transmission embodying the present invention.

FIG. 2 is a perspective view of a park lock device with a key interlock.

FIG. 3 is a perspective view showing a relationship between a projection of a key lock member and a rising rib of a shift lock member.

FIG. 4 is a perspective view showing a relationship between a shift lever main body provided on a base member and a check plate.

FIG. 5 is an operation diagram showing a state in which a key lock member is in a second operation position and a shift lock member is in a shift lock release position when the shift lever main body is in a running position.

FIG. 6 is an operation diagram showing a state in which a key lock member is in a first operating position and a shift lock member is in a shift lock position when the shift lever body is in a parking position.

FIG. 7 is a side view of the entire shift lever device for an automatic transmission.

FIG. 8 is a schematic plan view of FIG. 7 with the indicator main body removed.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 6;

FIG. 10 is a front view as seen from the direction of the arrow in FIG. 6;

FIG. 11 is an operation diagram of the parking lock device during traveling.

FIG. 12 is an operation diagram of the parking lock device at the time of stopping and stepping on the brake pedal.

FIG. 13 is an operation diagram similar to FIG. 12;

FIG. 14 is an operation diagram of the parking lock device when the parking position is completed.

FIG. 15 is an operation diagram similar to FIG. 14 with a key removed.

FIG. 16 is an operation diagram at the time of an ON operation by a key.

FIG. 17 is an operation diagram in a state where a brake pedal is stepped on.

FIG. 18 is an operation diagram in which a position pin is lowered while a brake pedal is depressed.

FIG. 19 is an operation diagram of a shift lock state when a brake is not depressed.

FIG. 20 is an operation diagram at the time of stopping → parking when the brake is not depressed.

FIG. 21 is an operation diagram at the time of shifting to a parking position when the brake is not depressed.

FIG. 22 is an operation diagram when a shift to a parking position is completed when the brake is not depressed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shift lever main body 9 Operation knob 13 Base member 21 Position pin 23 Pressing part 25 Operating rod 29 Guide hole 31 Position plate 33 Positioning groove 37 Key lock member 55 Shift lock member 59 Mounting member 73 Key cylinder A1 First operating position A2 Second Operating position B Shift lock release position B1 Shift lock position SW Brake switch

Claims (1)

(57) [Claims] 1. A shift lever body pivotally attached to a base member and capable of performing a shift operation to each position, an operation knob provided at an upper end portion of the shift lever body and having a pressing portion, and a shift lever body linked to the pressing portion and interlockingly connected thereto. An operating rod that moves up and down in the interior, a position plate having a positioning groove for a parking and running position, and a position plate that is extended from a vertically long guide hole formed in the operating rod and formed in the shift lever body and protrudes outward. in the shift lever device for an automatic transmission having a position pin facing the positioning groove of preparative is attached to said base member
The attached member switches from the second operating position to the first operating position via the position pin when the shift lever body is in the parking position, and when the key cylinder which can be turned on / off by a key operation is turned off, the first A key lock member that is prevented from moving from the operating position to the second operating position and is allowed to move from the first operating position to the second operating position when the key cylinder is on, and a brake when the key cylinder is off. When the petal is not depressed and the brake switch is off, the shift lock position that restricts the movement of the position pin on the shift lever body, and when the brake pedal is depressed and the brake switch is on with the key cylinder on, A shift lock member switchable to a shift lock release position for releasing the restriction of the position pin, and a key connected to the key lock member; When the second operating position of the click member, key interlock with the parking lock device for an automatic transmission shift lever device, characterized in that it assembled and the key cylinder control member for preventing the off-operation of the key cylinder together .