JPH0448356Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is a method for swinging the shift lever based on predetermined conditions with the shift lever positioned at a specific non-driving position. This invention relates to a locking device for a shift lever for an automatic transmission that is designed to be disabled.

(Prior art) When parking a vehicle with an automatic transmission, the parking brake is operated and the shift lever is shifted to the "P" position to ensure the vehicle is in a braking state before leaving the vehicle. . When you shift the shift lever to the "D" position in order to start the engine and start the car from the "P" position, you will pass through the "R" position on the way. It is necessary that the foot brake be depressed until the shift is completed to the "" position.

(Problem to be solved by the invention) The shift lever operation described above and other operations are performed in conjunction with each other, but if this is not done, the shift lever cannot be swung to the non-driving position. It is thought that it will be locked to

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a shift lever locking device for an automatic transmission, which has a simple structure and is capable of locking the shift lever in a non-driving position based on predetermined conditions so that the shift lever cannot be oscillated.

[Structure of the invention] (Means for solving the problem) The locking device for a shift lever for an automatic transmission of the invention has a detent pin that is moved in one direction by pressing a push button provided on the shift lever. A detent plate that regulates the swinging operation of the shift lever through cooperative action and has a lock recess in which the detent pin moves in the other direction and is engaged when the shift lever is shifted to a specific non-driving position. is provided in the machine frame, and by rotating in one direction based on predetermined conditions, the detent pin, which is engaged with the lock recess, is placed in a lock position that restricts movement in one direction, and is rotated in the other direction. A locking member is rotatably provided on the machine frame, and when the locking member is in the locking position, the locking member is arranged opposite to the detent pin engaged in the locking recess. A regulating portion is provided which receives the detent pin when the detent pin is moved in one direction and restricts the movement in one direction, and the rotation center of the lock member is centered on the detent pin that is engaged with the lock recess. Provided so as to exist on the extension line of the moving direction of the tent pin,
The regulating portion is characterized in that it has a shape that is perpendicular to the moving direction of the detent pin when the locking member is located at the locking position.

(Function) According to the above means, when the lock member is rotated to the lock position based on predetermined conditions with the shift lever positioned at a specific non-driving position, the restriction portion of the lock member locks the day tent. Movement of the pin in one direction is restricted and the detent pin cannot be disengaged from the locking recess in the detent plate even if the push button is pressed. It is locked in such a way that it cannot be oscillated. in this case,
Even if the regulating portion receives a moving force in one direction from the detent pin, no rotational force is applied to the locking member in the direction of the unlocked position, so there is no need to hold the locking member in the locked position from the outside. On the other hand, when the locking member is rotated to the unlocked position,
The detent pin is allowed to move in one direction, and the detent pin can be disengaged from the lock recess by pressing the push button, thereby allowing the shift lever to swing.

(Example) An example of the present invention will be described below with reference to the drawings.

First, in Fig. 1, 1 is a shift lever, which is pointed at the arrow A with a shaft 3 provided on the machine frame 2 as a fulcrum.
It is provided so as to be swingable in the direction and in the opposite direction of arrow A. Reference numeral 4 denotes a detent plate that constitutes a part of the machine frame 2, and this detent plate has a detent plate that allows the shift lever 1 to be placed in the "P" position, the "R" position, the "N" position, and the like along the swinging direction of the shift lever 1. "D"
An engagement hole 5 is formed with an engagement surface for selectively positioning in the ``2'' position, the ``L'' position, and the ``L'' position. In the "P" position, which is a specific non-driving position, of the engagement hole 5, a lock recess 6 is formed which is deeper than other positions. 7 is a detent pin provided at the lower part of the shift lever 1 so as to engage with the engagement hole 5 of the detent plate 4; this is movable in the axial direction of the shift lever 1; By pressing a push button (not shown) provided on the knob 1a at the upper end, the knob 1a is moved in one direction of arrow B, and each position in the engagement hole 5 is disengaged from the engagement surface, and the pressure on the push button is released. As a result, it moves in the opposite direction of arrow B and engages with the engagement surface at one position in the engagement hole 5, thereby working together with the detent plate 4 to restrict the swinging operation of the shift lever 1. It's becoming like that.

8 is a locking member having a substantially inverted U-shape, and the upper side 8
a is rotatably supported by a pin 9 on the detent plate 4 at the upper part of the lock recess 6, and a regulating part 10 is provided at the upper edge of the lower side part 8b, and a regulating part 10 is provided at the top edge of the lower side part 8b. Downward slope 11
is provided. In this case, the pin 9, which is the center of rotation of the locking member 8, is located on an extension line (for convenience, indicated by a dashed line C) in the moving direction of the detent pin 7 engaged in the locking recess 6. . One end of a control wire 12 is connected to the upper left corner of the lock member 8, and the other end of this control wire 12 is connected to a foot brake (not shown). Therefore, when the foot brake is not depressed, the lock member 8 moves in the direction of the one-way arrow D.
As shown in FIG. 1, the regulating part 10 is placed in the lock position facing the lower opening of the lock recess 6. On the other hand, when the foot brake is depressed, the regulating part 10 is rotated in the opposite direction of arrow D, which is the other direction. rotated to the second
As shown in the figure, the restricting portion 10 is located at the unlocked position in which the lower opening of the lock recess 6 is opened. Further, the regulating portion 10 of the locking member 8 has a shape that is perpendicular to the moving direction of the detent pin 7 engaged with the locking recess 6 when the locking member 8 is in the locked position.

Next, the operation of the above configuration will be explained. First, when the shift lever 1 is in the "P" position and the foot brake is not depressed, the lock member 8 is in the lock position shown in FIG. It faces the combined detent pin 7. In this state, when the push button of the shift lever 1 is pressed, the detent pin 7 is moved in the direction of arrow B and hits the regulating portion 10, as shown by the two-dot chain line in FIG. 1, and presses it. In this case, since the restricting portion 10 is orthogonal to the moving direction of the detent pin 7, even if the restricting portion 10 receives a moving force from the detent pin 7 in the direction of arrow B, the locking member 8 does not move in the direction of arrow D or in the opposite direction. No rotational force acts in either direction of arrow D. Therefore, the lock member 8 remains in its locked position, and the detent pin 7 is restricted from further movement in the direction of arrow B, and the detent pin 7 cannot be disengaged from the lock recess 6. From, shift lever 1
cannot be shifted from the "P" position to any other position, and therefore the shift lever 1 is locked in the "P" position so that it cannot be swung.

When the foot brake is depressed from this locked state, the locking member 8 is rotated by the control wire 12 in the opposite direction of arrow D and is held at the unlocked position shown in FIG. In this state, the lower opening of the lock recess 6 is opened and the detent pin 7 is allowed to move in the direction of arrow B. Therefore, by pressing the push button of the shift lever 1, the detent pin 7 can be moved in the direction of arrow B. The pin 7 can be moved in the direction of arrow B to disengage it from the lock recess 6, thereby allowing the swinging operation of the shift lever 1 and shifting the shift lever 1 from the "P" position to any other position. can do.

Further, when the shift lever 1 is shifted from a position other than the "P" position to the "P" position with the lock member 8 in the locked position, the detent pin 7 moves against the slope 11 of the lock member 8. By pressing the locking member 13
When the detent pin 7 is moved in the direction opposite to arrow D to face the lock recess 6 and the push button is released in this state, the detent pin 7 moves in the direction opposite to arrow B and engages with the lock recess 6.

According to the embodiment described above, when the engine is started and the automobile is started with the shift lever 1 in the "P" position, the detent pin 7 is not engaged from the lock recess 6 unless the foot brake is depressed. Since the shift lever 1 cannot be released and the shift lever 1 cannot be shifted to another position, it is possible to reliably prevent the shift lever 1 from being carelessly shifted from the "P" position to the drive position without stepping on the foot brake. Moreover, in this case, when the locking member 8 is located at the locking position, even if the regulating portion 10 receives a moving force in the direction of arrow B from the detent pin 7 engaged with the locking recess 6, the locking member 8 will not move. Since no rotational force is applied and the lock member 8 is held in the locked position by itself, the lock member 8 can be held in the locked position from the outside against the pressing operation force of the push button. There is no need to provide a mechanism, and the configuration can be simplified.

In the above embodiment, the control wire 12
The other end is connected to the foot brake, and when the foot brake is not depressed with the shift lever 1 positioned at the "P" position, which is a specific non-driving position, the shift lever 1 is locked at the "P" position. However, when the foot brake is depressed, the lock is released, but for example, when the other end of the control wire 12 is connected to a steering lock device, and the steering lock device is locked with the engine key, The shift lever 1 may be locked and released when the steering lock device is brought into the unlocked state, or the shift lever 1 may be locked at the "N" position as the non-driving position. It's okay.

The other end of the control wire 12 is connected to an electromagnetic solenoid that is linked to the foot brake, and the control wire 12 is connected to the electromagnetic solenoid.
can also be activated.

[Effects of the invention] As is clear from the above description, the present invention allows the swinging operation of the shift lever through cooperation with the detent pin, which is moved in one direction by pressing the push button provided on the shift lever. A detent plate is provided on the machine frame and has a lock recess in which the detent pin moves in the other direction and is engaged when the shift lever is shifted to a specific non-driving position. When the detent pin is rotated in one direction, the detent pin engaged with the lock recess is placed in a lock position that restricts movement in one direction, and when the detent pin is rotated in the other direction, the detent pin is placed in an unlocked position. A member is rotatably provided in the machine frame, and when the lock member is placed in the lock position and faces the detent pin engaged in the lock recess, when the detent pin is moved in one direction. A regulating portion is provided to receive the detent pin and restrict movement of the detent pin in one direction, and the rotation center of the lock member is located on an extension line in the moving direction of the detent pin engaged in the lock recess. The regulating portion is characterized by having a shape perpendicular to the moving direction of the detent pin when the locking member is located at the locking position, so that the shift lever can be moved based on predetermined conditions. It has the excellent effect of being able to be locked in a non-driving position without being able to swing, and also eliminating the need for a highly rigid holding mechanism to hold the locking member in the locked position from the outside, and simplifying the configuration. play.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic side view of the locking member in the locked position, and FIG. 2 is a view corresponding to FIG. 1 with the locking member in the unlocked position. It is. In the drawings, 1 is a shift lever, 2 is a machine frame, 4 is a detent plate, 6 is a lock recess, 7 is a detent pin, 8 is a lock member, 9 is a pin (rotation center), and 10 is a restriction part. .

Claims (1)

[Scope of utility model registration request] a shift lever that is swingably provided on the machine frame and selects one of a plurality of positions by the swinging operation; a detent pin that is moved in one direction by pressing a push button provided on the shift lever; The detent pin is provided on the machine frame so as to restrict the swinging operation of the shift lever in cooperation with the detent pin, and when the shift lever is shifted to a specific non-driving position, the detent pin moves in the other direction. a detent plate having a lock recess that is engaged with the detent plate; and a detent pin that is rotatably provided on the machine frame and is engaged with the lock recess by rotating in one direction based on predetermined conditions. A lock member that is placed in a locked position that restricts movement in one direction and placed in an unlocked position when rotated in the other direction, and a lock member provided on this lock member that is placed in the locked position a regulating part that faces the detent pin engaged in the lock recess and receives the detent pin when the detent pin is moved in one direction and restricts the movement of the detent pin in one direction; The center of rotation of the member is provided on an extension line in the moving direction of the detent pin engaged in the lock recess, and the restriction portion is configured to rotate the detent pin when the lock member is in the lock position. A locking device for a shift lever for an automatic transmission, characterized by having a shape perpendicular to the direction of movement.