JP2002326523A - Shift lock device of automatic transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a manual releasing lever of a solenoid for lock from an opening for operating the lever under an instrument panel, dispense with covering of the opening for operating the lever with an encapsulating member, reduce the number of components, eliminate a removing labor of the encapsulating member in operating the manual releasing lever, and improve the operability of the manual releasing lever, in a shift lock device of an automatic transmission. SOLUTION: The inside of the instrument panel is provided with a solenoid for lock vertically so as to direct a cam for lock upward, the solenoid for lock is provided with the manual releasing lever for manually forcing and releasing the cam for lock extended downwardly in the direction opposite to the cam for lock, and the instrument panel under the manual releasing lever is provided with the opening for operating the manual releasing lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lock device for an automatic transmission, and more particularly to a shift lock device for an automatic transmission that improves the operability of a manual release lever for manually releasing a lock cam.

[0002]

2. Description of the Related Art A vehicle is provided with an automatic transmission or a manual transmission in order to convert a driving force of a mounted internal combustion engine to a required one in accordance with running conditions and to extract the required driving force.

In a vehicle equipped with an automatic transmission, FIG.
As shown in FIG. 1, a select mechanism 102 of an automatic transmission attached to an instrument panel (not shown) of a vehicle.
The lever assembly 104 is provided with a select lever 106 pivotally supported by a lever rotation shaft 108. The lever assembly 104 includes the select lever 10.
The detent pin 11 which is moved forward / backward by the operation (on / off) of a knob button (not shown) of the grip on the upper end side of 6
A detent plate 114 having a stepped opening 116 having at least a parking stepped part with which the 0 is disengaged is provided. The lever rotation shaft 108 is attached to the detent plate 114. In other words, the opening step 116 of the detent plate 114 has a drive step 116-D and a second-speed step 116-D on one side of the neutral step 116-N in correspondence with each shift position of the select lever 106. The second and first speed step portions 116-L are sequentially formed, and a reverse step portion 116-R and a parking step portion 116-P are provided on the other side of the neutral step portion 116-N.
Are sequentially formed.

The select lever 106 is provided with a shift range (P), a reverse range (R), a neutral range (N), a drive position (D), a second speed position (2), In the speed position (1), the vehicle is turned around the lever rotation shaft 108 in the front-rear direction of the vehicle. A shift cable (not shown) connected to the automatic transmission is connected to the lower end of the select lever 106.

[0005] The detent plate 114 is provided with a shift lock device 118. As shown in FIG. 9, the shift lock device 118 pushes the lock cam 120 to the lock position to prevent the detent pin 110 from being detached from the parking step portion 116-P when the power is turned off, as shown in FIG. As shown in the figure, at the time of energization, the locking cam 120 is caused to retreat to the release position and the parking step portion 1 is moved.
It has a locking solenoid 122 that allows the detent pin 110 to be detached from the 16-P. The lock solenoid 122 is connected to a brake switch (not shown). Although not shown, the select lever 1
A shift rod that contacts the knob button at the upper end thereof is provided in 06, and a detent pin 110 is attached and provided at the lower end of the shift rod. As a result, in the vehicle equipped with the automatic transmission, the vehicle cannot be released from the parking range 116-P unless the brake pedal is depressed. Further, the locking cam 120 of the locking solenoid 122 performs a stroke (forward / backward) by turning on / off an electric signal.

That is, in the shift lock device 118,
As shown in FIG. 9, when the brake pedal is not depressed, the detent pin 110 connected to the knob button of the select lever 106 is locked by the locking cam 120 of the locking solenoid 122 (when locked), so that the knob button is pressed. In other words, the detent pin 110 cannot be moved from the parking range 116-P. When the brake pedal is depressed, as shown in FIG. 10, a signal is input from the brake switch interlocked with the brake pedal to the locking solenoid 122, the locking cam 120 is stroked, and the detent pin 110 is moved from the parking range 116-P to another position. To move to the range (when unlocked).

As such a shift lock device for an automatic transmission, for example, Japanese Patent Application Laid-Open Nos. 9-20209, 11-105567, and 2000-31847.
No. 8 and JP-A-11-115528. Japanese Unexamined Patent Application Publication No. 9-2091 discloses that the lock state of the select lever is not released unless the ignition key is in the ON position, and that the ignition key is locked only when the select lever is in the parking range. The key is turned to the position and the key is pulled out. JP 11
In the device described in JP-A-105567, the cam member and the shift lock cam are connected to each other by a rod extending in the vertical direction of the vehicle, and a predetermined position of the shift lever is restricted from moving from the parking position. This controls the rotation of the engine key outside the parking range. Japanese Unexamined Patent Application Publication No. 2000-318478 discloses a release operation in which a release operation tool for retracting a lock cam to a release position is inserted into an indicator and a console box covered by a garnish above the lock cam. A hole is formed. JP-A-11-11552
No. 8 discloses a column shift device,
The key lock link is directly linked to the cylinder side lock link of the key cylinder, so that components such as cables are not required.

[0008]

By the way, as shown in FIG. 9, in a conventional shift lock device, the locking solenoid is electrically operated, so that the locking solenoid is unlocked in order to move the vehicle when the battery runs out. Must be provided with a release mechanism that can be manually operated.
There is also a method in which the locking cam of the locking solenoid is stroked by hand, but in general, the locking solenoid is
Since the occupant is located at a location where it is difficult for the occupant to see, the release mechanism linked to the locking cam must be extended to the extent that the occupant can reach. In this case, there is a technique of protruding an operating tool such as a knob in a lateral direction of the locking solenoid from the locking cam. However, if there is not enough space in the layout around the locking solenoid, the operating tool is provided. To prevent the lock solenoid from interfering with the electrical operation.
Since it must be made lightweight, it is difficult to ensure sufficient rigidity of the operating tool itself, and the operation of the locking cam is liable to be caught by the bending of the operating portion, and the like, causing a problem.

Further, in order to cover the operation tool and improve the appearance from the vehicle interior, a cover member or the like is attached to the instrument panel on the vehicle interior side, so that the number of parts is increased. However, there is an inconvenience that it takes time to attach the envelope member.

[0010]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned disadvantages, the present invention is capable of rotating a select lever to a lever assembly of a select mechanism of an automatic transmission mounted on an instrument panel of a vehicle. The lever assembly is provided with a detent plate formed with a step opening having at least a parking step at which a detent pin which is moved forward and backward by an operation of a knob button of the select lever is disengaged. When energized, the lock cam is pushed to the lock position to prevent the detent pin from being detached from the parking step, and when energized, the lock cam is retracted to the release position to operate the detent pin from the parking step. In a shift lock device of an automatic transmission provided with a locking solenoid that allows the Inside the instrument panel, the lock solenoid is provided in a vertical direction so that the lock cam is directed upward, and the lock solenoid is provided with a manual release lever for manually releasing the lock cam. A lever operation opening for operating the manual release lever is provided on the instrument panel below the manual release lever, the lever operation opening portion being provided to extend downward in a direction opposite to the locking cam.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention enables a manual release lever of a locking solenoid to be operated from a lever operation opening below an instrument panel, and covers the lever operation opening below the instrument panel. This eliminates the necessity of covering with a member, thereby reducing the number of parts and eliminating the trouble of removing the enclosing member when operating the manual release lever, thereby improving the operability of the manual release lever.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 to 8 show a first embodiment of the present invention. 4 to 6, reference numeral 2 denotes a vehicle provided with an automatic transmission (not shown), 4 denotes a vehicle compartment, 6 denotes a steering wheel, 8 denotes a steering column, 10 denotes an instrument panel, and 12 denotes a center console. The center console 12 is provided at a central portion of the instrument panel 10. On the vehicle compartment 4 side, which is the front side of the instrument panel 10 on the vehicle rear side,
As shown in FIG. 1, a garnish 14 is attached. A heater unit 18 of the air conditioner 16 is installed below the back side inside the instrument panel 10.

The center console 12 of the instrument panel 10 is provided with an air-conditioning operation unit 20. An audio mounting space 22 is provided above the center console 12 of the instrument panel 10. Further, a switch group 24 and an ashtray placing space 26 are provided below the center console 12 of the instrument panel 10. Further, below the instrument panel 10, as shown in FIG.
Are arranged.

On the back side of the instrument panel 10,
As shown in FIG. 1, a lever assembly 32 of a select mechanism 30 of the automatic transmission is provided. The lever assembly 32 is provided with a detent plate 36 of a detent mechanism 34. The shaft holding portion 38 of the detent plate 36
1, a select lever 40 is provided rotatably supported between the steering column 8 and the switch group 24 and the ashtray placing space 26 and protruding toward the passenger compartment 4 on the rear side of the vehicle. That is, the lever shaft 4 of the select lever 40
Reference numeral 2 denotes a base end portion 42A which is fixed to the outer peripheral surface of a lever rotation shaft 44 supported on the shaft holding portion 38-1 and extends linearly forward from the lever rotation shaft 44 to the vehicle front side; The curved portion 42B extends from the ten through-holes 46 toward the vehicle compartment 4 on the rear side of the vehicle and is curved, and the front end portion 42C is directed slightly obliquely upward on the rear side of the vehicle. A grip (knob) 50 having a knob button 48 is attached to a distal end portion 42C of the lever shaft 42.

The detent plate 36 has a step opening (not shown) having at least a parking step at which a detent pin P (see FIG. 3) which is moved forward and backward by the operation of the knob button 48 of the select lever 40 is engaged and disengaged. Z)
Are formed. Since the shape of the step opening of the detent plate 36 is the same as the conventional one, the description thereof is omitted here. The select lever 40 shifts the parking range (P), the reverse range (R), the neutral range (N), the drive range (D), the second speed range (2), and the first speed range (P). 1), the lever is vertically rotated about the lever rotation shaft 44. Also, the lever shaft 42 of the select lever 40
One end of the shift cable 52 is connected to the distal end of the base end portion 42A. The shift cable 52 is held by a support 56 attached to a holding bracket 54 of the lever assembly 32, and the other end is connected to the automatic transmission.

In the detent mechanism 34, the detent pin P is advanced and retracted via the shift rod by pushing and releasing the knob button 48 of the select lever 40.
By engaging and disengaging the detent pin P with each step of the detent plate 36 and shifting the select lever 40 to each shift position, the movement of the select lever 40 is regulated, and the automatic transmission is controlled via the shift cable 52. Switch the engagement state.

The solenoid holding portion 38-2 of the detent plate 36 is provided with a locking solenoid 60 of the shift lock device 58. The locking solenoid 60 is attached to the detent plate 36 with a fixture 62 in a vertical direction on the back side (vehicle front side) inside the instrument panel 10, as shown in FIG.
In the yoke 64, the coil 66 and the coil 66
And a solenoid shaft 7 located at a lower end side in a shaft hole 70 of the support tube member 68.
2, a plunger 74 fixed to the upper end of the solenoid shaft 72, and a locking cam 76 having an engaging step 76A that is connected to an upper portion of the plunger 74 and is directed upward to engage the detent pin P. Cushion 7 in contact with locking cam 76 at upper portion 64A of yoke 64
8 and the plunger 7 in contact with the lower portion 64B of the yoke 64.
A solenoid spring 80 for urging the upper part 4 upward;
And an electrical cord 82 communicating with the coil 66.

When the lock solenoid 60 is not energized,
The locking cam 76 is pushed to the lock position to prevent the detent pin P from being detached from the parking step portion, and when energized, the locking cam 76 is retracted to the release position to release the detent pin P from the parking step portion. Withdrawal is allowed. That is, in the shift lock device 58, the shift lever 40 is not shifted from the parking range unless the brake pedal (not shown) is depressed when the ignition key (not shown) is turned on. Plate 36
Locking solenoid 6 located near the parking step of the vehicle
0 is provided. The locking solenoid 60 communicates with a brake switch (not shown) of the brake pedal.

As shown in FIGS. 1 and 3, a manual release lever 84 for manually releasing and retracting the lock cam 76 is attached to the lock solenoid 60 so as to extend downward in the opposite direction to the lock cam 76. ing. That is, the manual release lever 84 is provided so as to be directed downward on the opposite side to the locking cam 76 which is directed upward, and the lever-side mounting portion 84A at the upper end portion is provided at the lower end side of the solenoid shaft 72. It is detachably attached to the shaft-side attachment portion 72A.

In the instrument panel 10 below the manual release lever 84, as shown in FIG. 1, a lever operation opening 86 that allows the manual release lever 84 to be operated from below.
Is provided.

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

In the detent mechanism 34, the detent pin P is moved forward and backward through the shift rod by pushing and releasing the knob button 48 of the select lever 40, and the detent pin P is engaged with and disengaged from each step of the detent plate 36. By shifting the select lever 40 to each shift position, the movement of the select lever 40 is restricted, and the engagement state of the automatic transmission is switched via the shift cable 52.

In the shift lock mechanism 58,
If the brake pedal is not depressed when the ignition key is turned on, the lock cam 76 of the lock solenoid 60 is pushed forward to restrict the movement of the select lever 40, and the shift of the select lever 40 from the parking range is prevented. On the other hand, if the brake pedal is depressed while the ignition key is turned on, the locking cam 76 of the locking solenoid 60 retreats to allow the select lever 40 to move, and the select lever 40 is shifted from the parking range. Let me change.

In this embodiment, a locking solenoid 60 is provided vertically inside the instrument panel 10 such that the locking cam 76 is directed upward, and the locking cam 76 is attached to the locking solenoid 60. A manual release lever 84 is provided extending downward in the direction opposite to the locking cam 76 to release the manual release lever, and the instrument panel 10 below the manual release lever 84 is provided with a lever operation for operating the manual release lever 84. Since the opening 86 is provided, when the locking state of the locking solenoid 60 is manually released, the manual release lever 84 is moved to the lever operating opening 8 below the instrument panel 10.
6, the solenoid shaft 72 can be retracted by the manual release lever 84, and the lever operation opening 86 below the instrument panel 10 can be operated.
Does not need to be covered with the enclosing member as in the related art, thus reducing the number of parts and manually releasing the lever 84.
When the operation is performed, there is no need to remove the encapsulating member, and the operability of the manual release lever 84 can be improved.

Further, since the locking solenoid 60 is disposed in the vertical direction and is not positioned in the horizontal direction, it is not necessary to consider the operating range of the locking solenoid 60 in the horizontal direction. Since the solenoid shaft 72 extends downward and is retracted, a moment is applied to the solenoid shaft 72 when the locking state of the locking solenoid 60 is manually released. Therefore, the weight can be reduced, and the operating resistance due to the operation of the solenoid shaft 72 on the axis can be reduced.

FIG. 7 shows a special structure of the present invention.
It shows an embodiment.

In the following embodiments, the parts having the same functions as those of the above-described first embodiment will be described with the same reference numerals.

The features of the second embodiment are as follows. That is, a roller support member 92 extending downward is provided in the vicinity of the locking solenoid 60 of the detent plate 36 so as to extend downward, and a rotatable roller 94 is attached to the lower end of the roller support member 92. One end of a lever releasing cable 96 made of, for example, a string is attached and provided at a lower portion of the solenoid shaft 72, and the other end of the lever releasing cable 96 is connected to the vehicle compartment through the hole 10A of the instrument panel 10. 4 and extended.

According to the configuration of the second embodiment, when the locking state of the locking solenoid 60 is released, when the lever releasing cable 96 is pulled from the vehicle interior 4, the solenoid shaft 72 is lowered through the roller 94. The locking state of the locking solenoid 60 can be released by retreating the locking solenoid 60, so that the locking release operation can be performed from the interior of the vehicle cabin 4. Therefore, the simplicity and operability can be improved. it can.

FIG. 8 shows a special structure of the present invention.
It shows an embodiment.

The features of the third embodiment are as follows. That is, when releasing the locked state of the locking solenoid 60, the pressing portion 98A is provided above the locking solenoid 60 so that the locking cam 76 is pressed and moved downward from above the locking solenoid 60.
And a release lever 98 having
A support portion 100 is provided on the detent plate 36 at an intermediate portion of the release lever 100 so that the lever 8 can be operated from the interior of the vehicle compartment 4 using the principle of leverage.

According to the configuration of the third embodiment, when the lock state of the lock solenoid 60 is released, the release lever 98 is pivoted about the support portion 100 from inside the vehicle compartment 4, and the lever Locking cam 76 according to the principle of
To move the lock solenoid 60 downward.
Can be released from above, which is simple and operable.

In the second embodiment, as in the third embodiment, the solenoid shaft 72 is operated by the principle of leverage.
May be retracted downward to release the locked state of the locking solenoid 60.

[0034]

As is apparent from the above detailed description, according to the present invention, a locking solenoid is provided in the instrument panel in the vertical direction so that the locking cam is directed upward. Is provided with a manual release lever that extends downward in the opposite direction to the lock cam to release the lock cam manually.The instrument panel below the manual release lever has a lever operation opening for operating the manual release lever. With this arrangement, the manual release lever of the lock solenoid can be operated from the lever operation opening below the instrument panel, and it is necessary to cover the lever operation opening below the instrument panel with an enclosing member. Therefore, the number of parts can be reduced, and at the time of operating the manual release lever, it is troublesome to remove the encapsulating member. No, it is possible to improve the operability of the manual release lever.

[Brief description of the drawings]

FIG. 1 is a side view of a selection device.

FIG. 2 is a plan view of the selection device.

FIG. 3 is a sectional view of the locking solenoid when the locking cam is manually released.

FIG. 4 is a perspective view of the instrument panel side obliquely downward viewed in the vehicle interior of the vehicle.

FIG. 5 is a bottom view of the locking solenoid viewed from obliquely below the instrument panel.

FIG. 6 is a front view of an instrument panel in a vehicle cabin.

FIG. 7 is a side view showing an arrangement state of a lever release cable in the second embodiment.

FIG. 8 is a side view showing an arrangement state of a release lever in the third embodiment.

FIG. 9 is a cross-sectional view of a conventional shift lock mechanism when locked.

FIG. 10 is a cross-sectional view of a conventional shift lock mechanism when the lock is released.

[Explanation of symbols]

 2 Vehicle 4 Cabin 30 Select mechanism 32 Lever assembly 34 Detent mechanism 36 Detent plate 40 Select lever 58 Shift lock device 60 Lock solenoid 76 Lock cam 84 Manual release lever 86 Lever operation opening

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuhiro Osawa 933-1, Washitsu, Kosai-shi, Shizuoka Prefecture Hamana Parts Industry Co., Ltd. F-term (reference) 3D040 AA01 AA14 AA22 AA33 AB01 AC55 AC60 AD05 AE19 AF08

Claims (1)

[Claims] A select lever is rotatably supported on a lever assembly of a select mechanism of an automatic transmission attached to an instrument panel of a vehicle, and the lever assembly is provided with a knob button of the select lever. A detent plate having a step opening having at least a parking step portion at which a detent pin moved forward and backward by the operation is engaged and disengaged is provided, and when the power is not supplied, the locking cam is pushed forward to the locking position and the parking step is performed. A shift lock device for an automatic transmission provided with a locking solenoid that prevents the detent pin from being detached from the parking step portion while preventing the detent pin from being detached and energizing the locking cam to the release position when energized. The lock cam is directed upward inside the instrument panel. The locking solenoid is provided in the vertical direction so that the locking solenoid is provided with a manual release lever for manually releasing the locking cam to be retracted, extending downward in the opposite direction to the locking cam, and A shift lock device for an automatic transmission, wherein a lever operation opening for operating the manual release lever is provided in the instrument panel below the manual release lever.