JPH0738035Y2 - Ignition key device for automatic transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an ignition key device for an automatic transmission having a structure in which a key rotor, which is rotated by an ignition key, is connected to a shift lever.

(Prior Art) In a vehicle with an automatic transmission, the shift lever is shifted to the "P" position during parking, and the key rotor of the key cylinder is rotated to the "LOCK" position, which is the locked position, by the ignition key. Pull out the key rotor so that it is separated from the car, and insert the key into the key rotor with the shift lever in the "P" position at the time of starting.
The engine is started by rotating the "K" position through the "ACC" and "ON" positions to the "START" position, and the shift lever is shifted to a drive position such as the "D" or "R" position to start the vehicle. Is being done. And with this one, if the key is not inserted in the key rotor,
Alternatively, the shift lever can be shifted from the "P" position to another position even when the key rotor is in the "LOCK" position, and the key is in the "LOCK" position even when the shift lever is in a position other than "P". The key can be removed by rotating the key to.

On the other hand, for example, JP-A-60-135352 and JP-A-59-13.
In Japanese Patent No. 7234, a cam rotated by a key, a lock member moved and displaced by the cam, and a sliding member connected to a shift lever via an operation cable are provided, and the shift lever is placed at a parking position (“ It is shown that the key cannot be removed unless it is in the "P" position, and the shift lever is locked in the parking position when the key is removed.

(Problems to be solved by the invention) However, in all of the above publications, the lock member is urged by the spring and constantly slidably contacts the outer periphery of the cam rotated by the operation of the key. When the cam is rotated, sliding friction is generated between the cam and the lock member, and this becomes a resistance when the cam and by extension the key rotor is rotated.
There is a drawback that the return rotation from the "T" position to the "ON" position cannot be performed smoothly.

Therefore, an object of the present invention is to remove the key unless the shift lever is shifted to a specific non-driving position, and to shift the key when it is in the locked position or when the key is removed. It is an object of the present invention to provide an ignition key device for an automatic transmission in which a lever can be locked at a specific non-driving position and the key rotor can be smoothly rotated.

[Structure of the Invention] (Means for Solving Problems) The present invention allows the key to be inserted / removed at the locking position, and the key cannot be removed when the key is rotated from the locking position to the operating position. When the key rotor is rotatably provided in the housing, and the shift lever is shifted to a specific non-driving position, the shift lever is locked so that the swing operation cannot be performed. A lock lever locking device that is unlocked is provided, and a lock portion is provided on the outer periphery of a shaft provided in the housing so as to rotate integrally with the key rotor behind the key rotor. A lock lever that is connected to the shift lever locking device via a shaft and can move along the axial direction of the shaft in a state parallel to the shaft. The housing is provided so as to be moved between a first position and a second position in interlock with a locking device for a lever, and the lock lever is provided with a protrusion protruding toward the shaft. When the shift lever lock device is in the unlocked state and the lock lever is moved to the first position, the convex portion is positioned within the rotation trajectory of the lock portion and the key rotor is locked from the operating position. When the shift lever lock device is locked and the lock lever is moved to the second position, the convex portion is positioned outside the rotation locus of the lock portion. When the key rotor is rotated to the locking position and the key rotor is rotated to the locking position, the lock portion is positioned within the movement locus of the convex portion and the lock portion is rotated. It is characterized in that the shift lever locking device is locked in a locked state by restricting movement of the clever from the second position to the first position.

(Operation) According to the above means, when the key is not inserted into the key rotor or the key rotor is in the locked position, the lock portion of the shaft moves the lock lever from the second position to the first position.
The shift lever locking device is locked in the locked state by the movement of the shift lever to the position, and the shift lever is locked in a specific non-driving position so as not to be swingable. Further, when the shift lever is in a position other than the specific non-driving position, the lock lever is located at the first position and the convex portion of the lock lever is located within the rotation locus of the lock portion. The key rotor cannot be rotated from the operating position to the locked position, and the key cannot be removed from the key rotor. Further, in this case, since the lock portion and the convex portion of the lock lever are not in contact with each other when the key rotor is in the operating position, the key rotor can be smoothly rotated.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 2, reference numeral 1 denotes a shift lever, which is provided so as to be swingable in the arrow A direction and the counter arrow A direction with a shaft 3 provided on the machine frame 2 as a fulcrum. 4 is machine frame 2
The detent plate provided on the upper part of the shift lever 1 is formed with an engaging hole 6 having a concavo-convex restricting portion 5 along the swinging direction of the shift lever 1, and the shift lever 1 is set to "P".
Position, "R" position, "N" position,
When shifting to each of the "D" position, the "2" position and the "L" position, the swing range of the shift lever 1 is selectively regulated by a cooperation action with a detent pin 7 described later. . A lock recess 8 is provided at a portion corresponding to the "P" position which is a specific non-driving position. The detent pin 7 is provided on the shift lever 1 so as to be movable in the axial direction,
When the push button 9 provided on the upper portion of the shift lever 1 is pressed, the push lever 9 is moved downward to disengage from the restricting portion 5 at each position in the engaging hole 6, and the push button 9 is released to move upward. The detent plate 4 is moved by moving and engaging with the engaging surface at one position in the regulating portion 5.
The swing operation of the shift lever 1 is regulated in cooperation with.

10 is a lock device for the shift lever, which is configured as follows. Reference numeral 11 denotes a movable body having an engaging groove 12 that opens to the right in the upper part thereof, and a long hole 13 formed in the upper left portion of the movable body is located near the lock recess 8 and is a pin protruding from the detent plate 4. 14 is movably supported by the engaging groove 12
Are moved along a line connecting the shaft 3 and the lock recess 8. Reference numeral 15 denotes a lever member whose one end is rotatably supported by the detent plate 4 via a shaft 16, and the other end of which is rotatably connected to the lower end of the movable body 11 via a shaft 17. Also, the arm portion 18 is integrally extended at one end. Then, one end of a control wire 19, which is a connecting member, is connected to the tip of the arm portion 18, and the other end of the control wire 19 is connected to a lock lever 27 described later. Thus, as shown in FIG. 2, when the shift lever 1 is in a position other than the "P" position, the shift lever lock device 10 is in the unlocked state, and the push button 9 is pressed from this state. When the shift lever 1 is operated in the direction opposite to the arrow A and is shifted to the "P" position, the detent pin 7 is moved to the engaging groove of the movable body 11.
When 12 is engaged and the push button 9 is released, the third
As shown in the figure, the detent pin 7 moves upward together with the movable body 11 and engages with the lock concave portion 8, and accordingly, the arm portion 18 of the lever member 15 is rotated around the shaft 16 in the arrow B direction, As a result, the shift lever locking device 10 is brought into the locked state.

On the other hand, in FIG. 1, reference numeral 20 designates a key cylinder provided in a housing 21 provided in a steering column (not shown), in which a key rotor 20b having a key hole 20a is rotatable as shown in FIG. It is provided. In this key rotor 20b, the key 22 can be inserted into and removed from the key hole 20a at the "LOCK" position, which is the locking position, and when the inserted key 22 is rotated in the direction of arrow C, the operating positions are "ACC" and "ACC", respectively. O
The key 22 is rotated to the "N" and "START" positions, and the key 22 cannot be removed at the operating position. This key rotor
A shaft 23 that rotates integrally with the key rotor 20b is provided at the rear end portion of 20b, and the tip end of the shaft 23 is connected to an ignition switch 24. As shown in FIG. 5, a lock portion 25 having a substantially semicircular shape is projected from the outer peripheral portion of the shaft 23, and a flange portion 26 having a substantially semicircular shape is provided on the tip side of the lock portion 25. And a notch-shaped step portion 25a is formed at the end of the lock portion 25. 2
Reference numeral 7 denotes a lock lever, which is connected to one end of the control wire 19 and the other end of the control wire 19 in parallel with the shaft 23 so as to be movable in the arrow D direction and the counter arrow D direction, which are the axial directions of the shaft 23. Convex portion 28 toward the shaft 23 at the other end
And a receiving portion 29 projecting toward the side opposite to the shaft 23. A compression coil spring 3 is provided between the receiving portion 29 and the receiving portion 21a provided on the housing 21.
The lock lever 27 is biased in the direction of arrow D by the compression coil spring 30. Further, 31 is a cam projectingly provided on the outer peripheral portion of the rear portion of the shaft 23.
A lock bar (not shown) is connected to the frame body 32 that is moved by, and when the key rotor 20b is rotated to the “LOCK” position, the tip of the lock bar engages with a steering shaft (not shown), and the steering shaft moves. It is supposed to be locked. 1 and 5, the key rotor 20b is located at the "ACC" position, and the shift lever lock device 10 is unlocked.
The state in which 27 is positioned at the first position pulled in the direction opposite to the arrow D through the control wire 19 is shown. In this state, the convex portion 28 of the lock lever 27 is the step portion of the lock portion 25.
The lock portion 25 is located in the turning locus of the lock portion 25 facing the lock portion 25, and the lock portion 25 and the key rotor 20 are provided by the convex portion 28.
The rotation of b in the direction opposite to arrow C is restricted. In this state, the right side surface of the convex portion 28 in FIG. 1 is set to face the left side surface of the collar portion 26 with a predetermined gap g. Then, in this state, as shown in FIG. 3, when the shift lever 1 is shifted to the “P” position and the shift lever locking device 10 is in the locked state as described above, the lock lever 27 is moved through the control wire 19. It is moved in the direction of arrow D and is positioned at the second position as shown in FIG. 6 and FIG.
When the lock portion 25, and thus the key rotor 20b, is rotated outside the rotation locus of the key 25 and is allowed to rotate in the direction opposite to the arrow C, and the key rotor 20b is rotated to the "LOCK" position, the lock portion 2
The left side of 5 faces the right side of the convex portion 28 and the lock lever 27
The movement in the direction opposite to the arrow D is restricted.

Next, the operation of the above configuration will be described. Shift lever 1
Is in a position other than the "P" position, for example, in the "N" position as shown in FIG. 2, the shift lever lock device 10 is in the unlocked state, and the shift lever 1 can be rocked. In the state, the lever member 15
Since the arm portion 18 of the lock lever 27 is rotated in the direction opposite to the arrow B, the lock lever 27 is moved through the control wire 19 accordingly.
Is pulled to the opposite arrow D direction as shown in FIGS. 1 and 5 and is located at the first position. In this state, the key rotor 20b can be rotated from the “ACC” position to the “START” position, but since the convex portion 28 of the lock lever 27 is within the rotation locus of the lock portion 25, The convex portion 28 restricts the rotation of the key rotor 20b from the "ACC" position in the direction opposite to the arrow C, and cannot rotate to the "LOCK" position. Therefore, when the shift lever 1 is positioned at a position other than the "P" position, the key rotor 20b cannot be rotated to the "LOCK" position, and the key 22 cannot be removed from the key rotor 20b.

Then, when the shift lever 1 is operated in the direction opposite to the arrow A while the push button 9 is pressed from the state shown in FIG. 2 to shift to the “P” position, the detent pin 7 causes the detent pin 7 to engage with the engaging groove 12 of the movable body 11.
When the push button 9 is released in this state,
As shown in the figure, the detent pin 7 moves upward together with the movable body 11 and engages with the lock concave portion 8, and accordingly, the arm portion 18 of the lever member 15 is rotated in the arrow B direction. With the rotation of the arm portion 18, the lock lever 27 is moved in the arrow D direction from the first position via the control wire 19 and is positioned at the second position. In this state, since the convex portion 28 of the lock lever 27 is located outside the rotation locus of the lock portion 25, the rotation of the key rotor 20b in the direction opposite to the arrow C is allowed, and the key rotor 20b is moved to the "LOCK" position. It can rotate. When the key rotor 20b is rotated to the "LOCK" position,
It is possible to remove the key 22 from the key rotor 20b,
Further, the frame body 32 is moved by the cam 31 and the steering shaft is locked by the lock bar (not shown), and the left side surface of the lock portion 25 is the convex portion 28 of the lock lever 27 as shown in FIGS. 6 and 7. It will be in a state of facing. In this state, since the lock portion 25 is positioned within the movement locus of the convex portion 28, the movement of the lock lever 27 in the direction opposite to the arrow D is restricted, and the shift lever locking device 10 is accordingly restrained.
The rotation of the lever member 15 in the direction opposite to the arrow B is restricted. Therefore, in this state, the shift lever 1
Since the downward movement of the detent pin 7 is restricted even when the push button 9 of the shift lever 1 is pressed, the detent pin 7 cannot be disengaged from the lock recess 8 and the shift lever 1
Is locked in the "P" position so that it cannot be rocked.

Further, when the key 22 is inserted into the key rotor 20b from this state and the key rotor 20b is rotated in the direction of arrow C to the operating position, the movement of the lock lever 27 in the direction opposite to the arrow D is allowed. By depressing the push button 9 of the lever 1, the detent pin 7 moves downward together with the movable body 11 and can be disengaged from the lock recessed portion 8, whereby the shift lever 1 can be shifted to another position.

In the embodiment described above, when the shift lever 1 is shifted to a position other than "P", the convex portion of the lock lever 27
28 is positioned within the rotation path of the lock portion 25 and the key rotor 20b
Since it can not be rotated to the “LOCK” position, it is possible to prevent the key 22 from being removed from the key rotor 20b while traveling,
Also, when parking, the shift lever 1 is shifted to the "P" position and then the key rotor 20b is rotated to the "LOCK" position to remove the key 22. It becomes possible to leave. Then, in the state where the shift lever 1 is shifted to the “P” position, the lock lever 27 has moved to the second position where the convex portion 28 is located outside the rotation locus of the lock portion 25 (sixth position). (See FIG. 7 and FIG. 7), the lock lever 27 is the lock portion.
The rotation of 25 and the rotation of the key rotor 20b do not resist, and the rotation of the key rotor 20b can be smoothly performed. Further, when the key rotor 20b is in the “LOCK” position, the lock portion 25 restricts the movement of the lock lever 27 from the second position to the first position, and accordingly, the shift lever locking device 10 As a result, the shift lever 1 is locked in the "P" position so that it cannot be rocked.
If the key 22 is stored, the one other than the driver shift lever 1
Can be prevented from being operated. Further, in the above-described embodiment, the key rotor 20b moves from the operating position (from the "ACC" position to the "STAR
(Up to the “T” position), the lock portion 25 and the convex portion 28 of the lock lever 27 are not in contact with each other, and no sliding friction occurs between them when the key rotor 20b is rotated in the operating position. Therefore, the key rotor 20b can rotate smoothly, and particularly when the key rotor 20b automatically returns from the "START" position to the "ON" position at the time of engine start, the key rotor 20b can smoothly rotate.

In addition, according to the present embodiment, the lock lever 27 is provided on the housing 21 side as a member that engages / disengages with the lock portion 25.
1 is sufficient, the number of parts is small, and the structure is simple.

In the above embodiment, the outer peripheral portion of the shaft 23 is provided with the flange portion 26 that faces the convex portion 28 of the lock lever 27 when the key rotor 20b is located in the operating position. Should be provided. Further, in the above-described embodiment, the shift lever lock device 10 locks the shift lever 1 at the "P" position, but it may be locked at the other non-driving position "N" position.

[Effects of the Invention] As is clear from the above description, according to the present invention, the shaft provided so as to rotate integrally with the key rotor is provided with the lock portion projecting, while the lock lever is shifted through the connecting member. The lock lever is connected to the lock device so as to be movable in the axial direction of the shaft in parallel with the shaft, and the lock lever is provided with a convex portion projecting toward the shaft. The shift lever locking device is configured to move between the first position and the second position in conjunction with the shift lever locking device, and the shift lever locking device is unlocked and the lock lever is moved to the first position. In this state, the convex portion is positioned within the rotation locus of the lock portion to prevent the key rotor from rotating from the operating position to the locking position, and the shift lever locking device is locked to lock the lock lever. When the bar is moved to the second position, the convex portion is located outside the rotation locus of the lock portion to allow the key rotor to be rotated from the operating position to the locking position, and the key rotor is rotated to the locking position. Then, the lock portion is positioned within the movement locus of the convex portion and the lock lever is restricted from being moved from the second position to the first position to lock the shift lever locking device in the locked state. The feature is that the shift lever cannot be shifted from a specific non-driving position to another position when no key is inserted into the key rotor or when the key rotor is in the locked position. If the shift lever is in a position other than the specific non-driving position, the key rotor cannot be rotated to the locked position, and the key cannot be removed. Then, when the shift lever is in the specific non-driving position, the convex portion of the lock lever is moved to the second position outside the rotation locus of the lock portion, so that the lock lever is locked. There is no resistance to the rotation of the key portion, and thus to the rotation of the key rotor, and the rotation of the key rotor can be made smooth. Furthermore, when the key rotor is in the operating position, the lock portion and the convex portion of the lock lever are Is in a non-contact state, it is possible to smoothly rotate the key rotor in the operating position. In addition, according to the present invention, one member of the lock lever may be provided on the housing side as a member that engages and disengages with the lock portion, and there is an advantage that the number of parts is small and the structure is simple.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a sectional view of a main portion, FIG. 2 is a side view of a shift lever portion partially cut away, and FIG. 3 is a function different from that of FIG. FIG. 4 is a perspective view of the lock portion and the lock lever in the state of FIG. 1, FIG. 6 is a front view of the key rotor portion, and FIG. FIG. 7 is a view corresponding to FIG. 1 in a different operation state, and FIG. 7 is a view corresponding to FIG. 5 in the state of FIG. In the drawing, 1 is a shift lever, 4 is a detent plate,
7 is the detent pin, 10 is the lock device for the shift lever,
11 is a movable body, 15 is a lever member, 18 is an arm portion, 19 is a control wire (connecting member), 20 is a key cylinder, 20b
Is a key rotor, 21 is a housing, 22 is a key, 23 is a shaft, 24 is an ignition switch, 25 is a lock part, 27 is a lock lever, and 28 is a convex part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigenori Miyoshi 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Isao Ichihara 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. ( 56) References Japanese Unexamined Patent Publication No. 59-137234 (JP, A) Actually opened 61-7454 (JP, U) Japanese Patent Publication No. 52-25613 (JP, B2)

Claims (1)

[Scope of utility model registration request] 1. A key rotor rotatably provided on a housing, in which a key can be inserted / removed in a locked position, and when the key is rotated from a locked position to an operating position, the key cannot be removed. A shift lever for selecting one of a plurality of positions by a dynamic operation, and a lock state in which the shift lever can be locked so that the shift lever cannot be rocked when the shift lever is shifted to a specific non-driving position. Lock device for a shift lever that is unlocked when shifted to a position, a shaft provided on the housing so as to rotate integrally with the key rotor behind the key rotor, and a shaft provided on the outer peripheral portion of the shaft. And a lock portion connected to the shift lever locking device via a connecting member so as to be parallel to the shaft. Has a convex portion which projects toward its shaft-side with is provided in the housing so as to move along a direction,
The protrusion moves in interlock with the shift lever lock device between a first position located within the rotation track of the lock section and a second position located outside the rotation track of the lock section. The lock lever for the shift lever is in the unlocked state and the lock lever is moved to the first position, the convex portion is positioned within the rotation locus of the lock portion. Then, the key rotor is restricted from being rotated from the operating position to the locking position, and when the shift lever locking device is locked and the lock lever is moved to the second position, the convex portion is Allowing the key rotor to be rotated from the operating position to the locking position by being located outside the rotation locus of the lock portion, and when the key rotor is rotated to the locking position, the lock portion moves the convex portion. Position in trajectory The lock lever ignition key device for an automatic transmission, characterized in that the locking in regulating lock the locking device for the shift lever state to be moved from the second position to the first position Te.