JPS6221651B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine stop device for a diesel engine vehicle equipped with a steering lock device controlled by the operation of an engine key. As is well known, many automobiles are equipped with a steering lock device to prevent theft, but this lock device is locked when the engine key can be inserted and removed freely, and when the key is inserted and turned within a predetermined range. It is configured to be released by moving the button.

Furthermore, since such a locking device disables the operation of the vehicle, it is extremely dangerous if the locking operation is performed while the engine is running.
Therefore, conventional locking devices are designed to lock after the engine has stopped.

On the other hand, in diesel engine cars, the engine cannot be stopped by key operation, but is stopped by operating the fuel cut, intake/exhaust cut, or decompression. If the engine is equipped with a locking device, it is necessary to make the engine stop by cutting the fuel before the engine is locked by key operation, and to link the fuel cutting device to the above-mentioned locking device.

In conventional diesel engine vehicles, a linking member connected to the fuel cut device is attached to the key cylinder lock, and the key can only be turned to the lock position when the linking member is operated to stop the engine. There are many things that are configured to do so. Since this type of key is intended to control power supply to the engine heat, starter, lighting equipment, etc., the above-mentioned linking members can operate when the key is turned to the OFF position. .

With this configuration, it is effective to stop the engine after power is cut off to electrical devices such as lighting and radios, but on the other hand, to stop the engine, the key must be turned ON. The connecting member of the fuel cut device cannot be operated unless it is operated from the OFF position to the OFF position.
This is not appropriate for stopping the engine suddenly.

In other words, when you are driving a car and encounter an unexpected situation such as an earthquake or a traffic accident, it is most appropriate to stop the engine immediately to prevent a fire from occurring. However, since the psychological agitation is extremely high when faced with the above situation, it is necessary to accurately turn the key to the OFF position and then operate the above-mentioned linking member. It becomes extremely difficult to stop the engine.

In view of the above-mentioned circumstances, the present invention provides a diesel engine that can immediately stop the engine by simply pulling out the operating knob when an unexpected situation such as a car accident occurs. We propose an engine stop device for engine vehicles.

Hereinafter, the content of the present invention will be explained based on preferred embodiments shown in the drawings.

In the drawings, FIG. 1 is a front view of a key cylinder lock for a diesel engine vehicle equipped with an engine stop device according to the present invention, FIG. 2 is a partially cutaway bottom view of the key cylinder lock, and FIG. 3 is a bottom view of the key cylinder lock. It is a side view of the said key cylinder lock. In these figures,
1 is a case body of a key cylinder lock, 2 is a key cylinder, 3 is a lock cam, and 4 is a pin receiving rotating body. The locking cam 3 is rotated by the rotation of a key inserted into the key cylinder 2, and this rotation causes the locking bolt 5 to reciprocate from side to side in the figure. In other words, lock cam 3 is
As shown in the figure, a frame body 6, which has a substantially semicircular shape and has a locking bolt 5 fixed thereto, is configured to be pushed back by the peripheral edge of the frame body 6 as the cam 3 rotates. This unlocking operation is performed when the key is turned from the LOCK position to the ON position in FIG. Furthermore, when the key is rotated in the opposite direction to the LOCK position, the cam 3 is in the rotational state shown in FIG.
It is pushed out by the expansion force of the steering shaft and locks the steering shaft.

In addition, the key operation positions shown in Figure 1 are as follows.
LOCK is the lock position of the steering shaft, OFF is the engine stop position, ON is the engine operating position,
H is the engine heat position, and S is the starter position. The pin receiving rotating body 4 described above is the lock cam 3.
Similarly, the pin 8 rotates in conjunction with the rotation operation of the key, and protrudes from a part of its peripheral surface.
As detailed in FIGS. 5a and 5b, the pin 8 is inserted into a blind hole 4a formed in the diametrical direction of the rotary body 4 together with a pressure expansion spring 9, and the pin 8 is inserted into the spring from the peripheral surface of the rotary body 4. It is designed so that it always protrudes under the expansion force of 9. Further, this pin 8 is extracted to the outside of the case body 1 from an elongated guide hole provided in the case body 1. Note that the round ball received at the tip of the pin 8 is a steel ball.

On the other hand, a frame body 10 having a substantially horseshoe shape attached to the outside of the case body 1 is a movable body having a guide groove 11 on its inner surface into which the pin 8 enters, and a wire 12 connected to a fuel cut device is fixed to this frame body 10. However, the fuel supply is controlled to be cut off in accordance with the movement of the moving body 10. Note that the movable body 10 is constantly subjected to a moving force (downward in FIG. 2) due to the tensile force of the wire 12. As detailed in FIGS. 6a to 6e, this moving body 10 has cylindrical sliding parts 10a and 10b provided at its circumferential end.
and a notch 10c cut out almost circularly in the direction of movement.
and a through hole 10 provided at the bottom of this notch 10c.
d. And the above-mentioned sliding part 10
a, 10b are support arms 1a, 1 provided on the case body 1;
It is slidably fitted into the guide hole b, and the operating rod 13 is inserted into the through hole 10d.

The operating rod 13 is inserted into the shaft hole of the support arm 1c provided in the case body 1, and is also inserted into the through hole 10d of the movable body 10 as described above. A receiving portion 15 for receiving the moving body 10 is provided at the end. In addition, the seat plate 16 fixed to the middle of the operating rod 13 is connected to a pressure expanding spring 1 interposed between it and the supporting arm 1c.
7, and its size is determined so that it can fit into the notch 10c of the moving body 10.

The key cylinder lock configured as described above is fixed to the steering shaft cover etc. by the mounting frame 18, and the rear part of this key cylinder lock (lower end in FIGS. 2 and 3) is equipped with engine heat, starter, etc. A switch device that controls the power supply is installed in such a way that it is linked to the turning operation of the key.

Furthermore, the guide groove 11 provided in the moving body 10 described above
has the form shown in FIG. 7, and the relationship between the pin 8 that moves in this guide groove 11 and the rotational position of the key is that when the key is in the LOCK position, the pin 8 is in the groove a, and when the key is in the ON position. When rotated to the position, pin 8
moves to groove b or c. Similarly, when the key is rotated to the H position, the key moves to the groove d, when the key is rotated to the S position, the key moves to the groove e, and when the key is rotated to the OFF position, the key moves to the groove f.

The operation of the above key cylinder lock will be explained below. The illustrated moving body 10 is shown in its moving position when the engine is running, and when the engine is stopped and the vehicle is stationary, it is at the position indicated by the temporary line shown in FIG. 3.

In this state, insert the key into the key cylinder 2.
Insert it into the ON position and rotate it to the ON position.
The locking bolt 5 moves back to release the lock, and the pin 8 advances from the groove a to the groove b. At this time, the movable body 10 receives the tensile force of the wire 12 and moves downward as viewed from FIGS. 2 and 3, so the pin 8 advances from the groove b to the groove c. This operation controls the fuel cut device to enable fuel supply.
Under this condition, when the key is rotated to the H position, engine heat is supplied, and when the key is further advanced and rotated to the S position, power is supplied to the starter, and this operation starts the engine. When the key is operated to the H and S positions as described above, the pin 8 moves to the grooves d and e.

Since the key is configured to automatically return to the ON position when the engine is started, the pin 8 returns to the groove c and remains in the groove c while the engine is running.

Next, press the key to stop the engine.
Rotate it to the OFF position. At this time, the pin 8 moves from the groove c to the groove f, so the operation knob 1
4 toward the front as viewed from FIG. 1, the moving body 10 moves as shown by the dotted line in FIG. 3. Since the wire 12 is pulled back by this operation, the fuel supply is cut off by the fuel cut device and the engine is stopped. When the movable body 10 moves as described above, the pin 8 is transferred to the groove a while being pushed around by the guide groove 11, so that the movable body 10
When the key returns to the position shown by the phantom line in FIG. 3, the key is automatically rotated from the OFF position to the LOCK position, and the steering shaft is also locked by this operation.

On the other hand, since the bottom of the guide groove 11 connecting the grooves a and f is formed with a step as shown in FIG. can be prevented. However, the operation knob 14 is under the pressure expanding action of the spring 17, and when the tension operation force is released, it returns to the position shown by the solid line in FIG. 3.

Next, we will discuss the case where the engine is suddenly stopped during operation.In this case, the operation knob 14
Simply pull and operate. That is, since the position of the pin 8 during operation is the groove c, by pulling the operation knob 14 during operation, the pin 8 is transferred to the groove a so as to pass through the guide groove 11 connecting the grooves c to a. Therefore, as the moving body 10 moves, the fuel supply is cut off and the engine is stopped, and the key is automatically turned from the ON to LOCK position to lock the steering in the same manner as described above. Note that the groove bottom of the guide groove 11 connecting grooves a and c is the eighth groove.
By forming a stepped portion as shown in Figure b,
In this case as well, movement of the mobile body 10 can be prevented.

FIG. 9 shows a modification of the guide groove 11. This guide groove 11 eliminates the path of the groove f through which the pin 8 passes, and is configured so that the pin 8 always moves from the groove c to the groove a when the engine is stopped.

As described above, according to the present invention, the steering lock device is controlled by key operation, and the key cylinder lock is equipped with which the fuel cut device etc. can be controlled in a certain relationship with the control of this lock device. Even with diesel engine vehicles, the engine can be stopped immediately by simply pulling out the control knob, regardless of any key operation, and can be used in the event of a car accident or fire in a tunnel. This makes it possible to reliably stop the engine in the event that an impossible situation occurs.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a front view of a key cylinder lock equipped with an engine stop device according to the present invention, FIG. 2 is a partially cutaway bottom view of the key cylinder lock, and FIG. 3 is a partially cutaway bottom view of the key cylinder lock. is a side view of the key cylinder lock, FIG. 4 is a partially cutaway front view of the locking cam and locking bolt, FIG. 5a is a front view of the pin receiver and rotating body, and FIG. 5b is a front view of the pin. X on a
- X-ray sectional view, Figure 6 a is a front view of the moving body, Figure 6
Figure b is a plan view of the moving body, Figure 6 c is a bottom view of the moving body, Figure 6 d is a side view of the moving body, and Figure 6 e is a cross section taken along the line Y-Y in Figure 6 a. 7 is a diagram showing the guide groove provided in the moving body, FIG. 8a is a sectional view of the guide groove cut along the line A-A in FIG. 7, and FIG. A cross-sectional view of the guide groove taken along line B-B in the figure, Figure 8c is C in Figure 7.
FIG. 9 is a cross-sectional view of the guide groove taken along the line -C, showing a deformed guide groove. 1... Case body, 1a, 1b, 1c... Support arm, 2... Key cylinder, 3... Lock cam,
4... Rotating body, 5... Rocking bolt, 8...
Pin, 10... Moving body, 10a, 10b... Sliding part, 10c... Notch, 10d... Through hole, 11
... Guide groove, 13 ... Operating rod, 14 ... Operation knob, 15 ... Reception part, 16 ... Seat plate.

Claims (1)

[Scope of Claims] 1. A steering lock device that is locked at an initial rotational position where the key can be freely pulled out and is unlocked when the key is rotated from this initial position to a predetermined position, and a steering lock device for rotating the key. It has a pin that rotates in conjunction with the movement operation, and a guide groove that the pin enters into.
When the key is rotated to the predetermined position, it moves in the key insertion/removal direction to operate an engine starting device other than the electrical device, and during this movement, the key is allowed to further rotate and the electrical device is activated. a movable body capable of starting and operating an engine; a manual operation member capable of returning the movable body; and a pin that prevents the movable body from returning when the movable body returns during operation of the engine. emergency stop of an engine for a diesel engine vehicle, wherein the engine is immediately stopped by returning the movable body with the manual operation member while the engine is running; Device. 2. In the stopping device according to claim 1, the movable body has a first groove that allows the key to rotate to a predetermined position, and a first groove that allows the key to further rotate from the predetermined position. a second groove for engine starting and operation located before and after the first groove, and a third groove for operating an engine starting device other than an electrical device extending in the direction of inserting and removing the key connecting the first and second grooves. and a fourth groove extending from a portion of the second groove in which the pin is located during operation of the engine to an initial portion of the first groove. Device. 3. In the stopping device according to claim 1, the movable body has a first groove that allows the key to rotate to a predetermined position, and a first groove that allows the key to further rotate from the predetermined position. a second groove for engine starting and operation located before and after the first groove, and a third groove for operating an engine starting device other than an electrical device extending in the direction of inserting and removing the key connecting the first and second grooves. a fourth groove extending from the portion of the second groove in which the pin is located during engine operation to the original portion of the first groove; and an electrical conductor provided in the second groove. a groove portion for rendering the device inoperable; and a fifth groove portion extending from the groove portion to the initial portion of the first groove.
An engine emergency stop device for diesel engine vehicles equipped with a groove.