JPS6219452Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear shift lever limiting device that is capable of limiting the movable range of the gear shift lever when the vehicle is running.

Conventional gear shift lever limiting devices include, for example, in automatic vehicles, where a gear shift lock button is provided on the gear shift lever, and in a locked state where the driver does not operate the lock button, the gear shift from the parking P position to the reverse R position, Gear shifting from the drive D position to the second 2nd position, gearshifting from the second 2nd position to the low L position, gearshifting from the reverse position to the parking position, and gearshifting from the neutral N position to the reverse position are each restricted. . Here, the positions of each gear shift are arranged in the order of "P, R, N, D, 2, L."

Furthermore, in the unlocked state where the driver presses the lock button, gear shifting is not restricted and the gear can be shifted to any position.

Furthermore, in this conventional device, gear shifting is restricted in the locked state, so that, for example, gear shifting from the drive position to the reverse position cannot be performed unless the lock is released.

However, if the driver accidentally releases the lock, there is a problem that the gear will be shifted from the drive position to the neutral position and then to the reverse position. There is a problem that this can lead to an extremely dangerous situation, and at the same time, it can also have a negative effect on the engine.

The present invention aims to solve these problems and provides a gear shift lever limiting device for a vehicle that allows safe gear changes by limiting the movable range of the gear shift lever according to vehicle speed. purpose.

Therefore, the gear shift lever limiting device for a vehicle of the present invention is designed to limit the movable range of the gear shift lever in a vehicle equipped with a gear shift mechanism.
A movable range limiting mechanism for the gear shift lever is provided, and a vehicle speed sensor detects the speed of the vehicle to operate the movable range limiting mechanism when the speed of the vehicle exceeds a reference speed; a reference speed setter for setting the reference speed at which the vehicle starts operating, and control for operating the movable range limiting mechanism by comparing a speed signal from the vehicle speed sensor with a reference signal from the reference speed setter. It is characterized by the provision of a mechanism.

Hereinafter, a gear shift lever limiting device for an automatic vehicle as an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 is a partial sectional view showing the gear shift lever, and FIGS. FIG. 4 is a schematic diagram showing the detent plate section and its electric circuit diagram.

As shown in FIG. 1, a gear shift lever section 1 constituting a gear shift mechanism is provided on a vehicle floor 3, and a gear shift lever 4 connected to this gear shift lever section 1 rotates about an axis 5. It's getting old. (See reference numeral A in FIG. 1.) A lock button 7 is slidably provided in the grip portion 6 of the shift lever 4, and this lock button 7 is biased by a spring 8, and is normally kept away from the grip portion 6. A part of it is in a protruding state (locked state).

When the lock button 7 is slid and pushed into the grip part 6, the inclined part 9 is gradually ejected, and the rod 10 connected to the inclined part 9 is moved below the gear shift lever 4 (arrow C in FIG. 1). (see), the rod 10 moves downward against the spring 11, and the stopper 12 connected to the rod 10
is moved in direction C, and the shift lever 4 becomes in a state where it can freely rotate (see double-headed arrow A in FIG. 1) (unlocked state).

As shown in FIG. 2, the stopper 12 engages with the upper stepped portion 13b of the first detent plate portion 13a formed on the plate 13 (shown with diagonal lines in FIG. 1) in the locked state. By coming into contact with each other, movement in the left and right directions (in the direction indicated by the symbol G in FIG. 2) is restricted, and the stopper 12 is normally biased in the direction indicated by the symbol E in FIG. 2 by the spring 11. has been done.

Furthermore, as shown in FIG. 3, the plate 13 is provided with a second detent plate portion 13c that constitutes a movable range limiting mechanism of the gear shift lever 4.
The upper end stepped portion 13d can be engaged with and disengaged from a fail-safe stopper 14 that constitutes a movable range limiting mechanism provided at the lower end of the gear shift lever 4.

The failsafe stopper 14 is the control mechanism 1
5, and when the control signal Sa is a predetermined voltage V1 which is a movable range limiting signal, the electromagnetic coil 16 is actuated to close the end 1 of the stopper 14.
4a is pulled in the direction of arrow F in FIG. 4, and the stopper 14 protrudes into the hole of the second detent plate portion 13c.

When the stopper 14 protrudes in the reverse position as shown in FIG. 3, it cannot move in the direction shown by the double arrow B in FIG. 3, and gear shifting to other positions is prohibited. It's summery.

Furthermore, when the stopper 14 is protruded at the neutral N position, drive D position, second 2 position, and low L position, gear shifting between these positions (N, D, 2, L) can be performed by operating the lock button 7. will be executed accordingly.

The fail-safe stopper 14 is a control signal.
When Sa is zero voltage V0, which is a non-limiting signal, the electromagnetic coil 16 is not activated, and therefore the stopper 1
4 is in a state where it is biased to the left in FIG. Engagement and disengagement are controlled by a lock button 7.

As shown in FIG. 4, the control mechanism 15 receives a vehicle speed signal V from a vehicle speed sensor 18 that detects vehicle speed at one input terminal of a comparator 19, and also receives a vehicle speed signal V from a reference speed setting device 20 corresponding to a reference speed of the vehicle speed. A reference signal Va (here, set to a value corresponding to a low vehicle speed) is received at the other input terminal of a comparator 19, and this comparator 19 receives a signal when the vehicle speed signal V exceeds the reference signal Va. Then, a high level signal is supplied to the amplifier 21.

The amplifier 21 receives this high level signal and
A predetermined voltage signal V1, which is a movable range limiting signal, is supplied to the electromagnetic coil 16 as a control signal Sa, and this signal Sa operates the movable range limiting mechanism.

Further, when the vehicle speed signal V is less than or equal to the reference signal Va, the comparator 19 supplies a low level signal to the amplifier 21, and the amplifier 21 supplies a zero voltage signal V0, which is a non-limiting signal, to the electromagnetic coil 16 as a control signal Sa. This signal
When Sa is zero voltage, the movable range limiting mechanism does not operate.

The vehicle speed sensor 18 includes a magnetic pickup 18a that converts the vehicle speed into a pulse signal, and an F-V converter 18b that converts the pulse signal into a voltage signal.

Furthermore, the grip portion 6 and the gear shift lever 4 shown in the upper part of FIG. 1 are shown in the same figure with a 90° positional relationship shifted from the gear shift lever part 1 shown in the lower part of the same figure.

The gear shift lever restriction device for vehicles of the present invention is
Since the configuration is as described above, when the vehicle speed is high, the movable range limiting signal from the control mechanism 15 is used as the control signal Sa, and the movable range limiting mechanisms 13c, 14
The movable range limiting mechanisms 13c and 14 operate.

By operating the movable range limiting mechanisms 13c and 14, gear shifting can be limited against various erroneous operations when the driver operates the shift lever 4 in an unlocked state during high-speed driving.

When the gear is in the reverse position and the vehicle is moving backwards at a speed higher than the reference speed, the gear cannot be shifted to another position unless the vehicle comes to a near stop. Only then can you shift gears from reverse to forward.

Also, when the gear is in the drive position and the vehicle is moving forward at a speed higher than the reference speed, the gear cannot be shifted to the parking position unless the vehicle is brought to an almost stopped state. Therefore, if the vehicle speed is not zero, This also prevents accidents if the wheels become locked.

Note that the reference signal can be set to an appropriate value, and the operation of the movable range limiting mechanism can be started in accordance with an arbitrarily selected vehicle speed.

Further, in addition to the vehicle speed sensor 18, an engine rotation speed (speed) sensor may be provided in order to prevent sudden backlash due to erroneous operation.

That is, the sensor 1 shown in FIG. 4 of this embodiment
8. Comparator 19 and reference speed setter 20
The engine speed sensor, the comparator, and the engine speed setter are configured in almost the same way as the configuration of , and each output from the vehicle speed sensor 18 and the speed sensor is input to a two-input AND circuit, and the two If the output from the input AND circuit is supplied to the amplifier 21, the gear shift from the parking position to the reverse position will only be performed at a speed lower than the engine's reference speed, thereby preventing sudden gear changes caused by incorrect gear changes from the parking position. This will prevent backlash.

As detailed above, according to the gear shift lever limiting device for a vehicle of the present invention, the gear shift lever movable range limiting mechanism is provided to limit the movable range of the gear shift lever, and the movable range limiting mechanism is a vehicle speed sensor for detecting the speed of the vehicle to be activated when the speed of the vehicle exceeds the reference speed; a reference speed setter for setting the reference speed at which the movable range limiting mechanism starts operating; The simple configuration includes a control mechanism that compares the speed signal from the vehicle speed sensor with the reference signal from the reference speed setting device and operates the movable range limiting mechanism. is not appropriate,
This has the advantage of being able to limit gear changes, which can contribute to improving vehicle driving safety.

[Brief explanation of the drawing]

The figures show a gear shift lever restriction device for a vehicle as an embodiment of the present invention. Fig. 1 is a partial sectional view showing the gear shift lever, and Figs. 2 and 3 show the first and second detent plates thereof. FIG. 4 is a schematic diagram showing the section, and FIG. 4 is an electric circuit diagram thereof. DESCRIPTION OF SYMBOLS 1... Gear shift lever part which comprises a gear shift mechanism, 3... Vehicle floor, 4... Gear shift lever, 5... Shaft, 6... Grip part, 7... Lock button, 8... Spring, 9... Inclined part , 10...rod, 11...spring, 12...stopper, 13...
...Plate, 13a...First detent plate portion, 13b...Stepped portion, 13c...Second detent plate portion constituting the movable range limiting mechanism, 13
d...Stepped portion, 14...Fail-safe stopper constituting the movable range limiting mechanism, 14a...End portion, 15...Control mechanism, 16...Electromagnetic coil, 1
7... Spring, 18... Vehicle speed sensor, 18a... Magnetic pickup, 18b... F-V converter, 19... Comparator, 20... Reference speed setter, 21... Amplifier.

Claims (1)

[Scope of utility model registration request] In a vehicle equipped with a gear shift mechanism, a gear shift lever movable range limiting mechanism is provided to limit the movable range of the gear shift lever, and the movable range limiting mechanism is activated when the speed of the vehicle exceeds a reference speed. a vehicle speed sensor for detecting the speed of the vehicle; a reference speed setter for setting the reference speed at which the movable range limiting mechanism starts operating; and a speed signal from the vehicle speed sensor and the reference speed setter. 1. A gear shift lever limiting device for a vehicle, comprising: a control mechanism for operating the movable range limiting mechanism by comparing the control mechanism with a reference signal from the vehicle.