JPS6116359Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile door lock, and more particularly to a self-cancellation mechanism for the door lock when the ignition key is forgotten to be removed.

Conventionally, Utility Model Application No. 53-86721 has been proposed as a mechanism to prevent forgetting to remove the ignition key.

This invention consists of an operating rod that is swung by an outside handle and an inside handle, and engages with a pin implanted in an arm that restrains the rocking of the locking latch, thereby releasing the locking of the locking latch by this arm; The bell crank is fitted into the operating rod, and the bell crank is swung by the operation of a key inserted into the key box of the door and a locking button to swing the operating rod. The locking device for an automobile has a mechanism for transmitting the operation of the outside handle and the inside handle to the operating rod, and this transmission mechanism is configured such that the ignition key A locking device for an automobile, characterized in that when the locking device is inserted into the hole, both the handles and the operating rod are maintained in a non-transmitting state. The link that transmits the operating movement of the handle to the operating rod is divided into two parts, and the levers are normally connected, but this connection is only released when the ignition key is inserted, so the link between the levers is separated. ,Requires a release mechanism,
Therefore, the door lock itself becomes complicated,
It cannot be incorporated into conventional door lock devices.
In addition, the occupants only learn that they have forgotten to remove the ignition key when the locking button rises when the door is closed, which is very inconvenient as they have to open the door again to remove the key. .

Therefore, the present invention solves the drawbacks of the conventional device described above, and by adding a simple structure, prevents forgetting to remove the ignition key.Furthermore, the present invention prevents forgetting to remove the ignition key. The purpose is to provide equipment.

Hereinafter, the present invention will be explained in detail based on the drawings. In Fig. 2, reference numeral 1 denotes a door lock body fixed to a door (not shown), and on the back side thereof, a striker 7 fixed to the vehicle body side, which enters a recessed groove 2 formed in the body 1 when the door is closed, engages and disengages. A latch 8 is pivoted and biased clockwise. Furthermore, a stopper 12 having a claw portion 13 that engages and disengages from the locking portion 9 of the latch 8 is provided.
It is pivotally supported on the main body 1 while being biased in the direction of contacting the main body 1. The stopper 12 also has an unlatching protrusion 14 that engages with an open lever 18 to release the latch 8, which will be described later, and a self-cancelling protrusion 1.
5 are provided respectively. Furthermore, a stopper 5 is provided on the main body 1 to restrict rotation of the stopper 12 beyond a certain angle and to place the stopper 12 at the same position in the unlatched position shown by the solid line and the latched position shown by the two-dot chain line of the latch 8. be.

These operation units are arranged on the front side of the main body 1. In FIG. 1, reference numeral 30 denotes a ring pivotally attached to the main body 1, and a bell crank 33 is connected to one end of the ring, which is connected to a rod 37 that connects to an inside handle (not shown). are arranged so that they can come into contact with each other, and a headed pin 40 is fixed to the other end. This pin 40 has a bifurcated tip, an engaging portion 19 is formed at one tip, a bent portion 21 is formed at the other tip, and a guide groove 20 is formed. A fitting groove 3 of a rod 38, on which the lever 18 is pivoted and coupled to an outside handle (not shown)
9 is fitted. The ring 30 is urged to rotate clockwise so that the engagement portion 19 of the open lever 18 and the unlatching protrusion 14 of the stopper 12 do not normally engage.
Rotation is restricted by 1. Further, a spring 41 is stretched between one end of the bell crank 33 connected to the rod 37 and the standing wall 3, so that the link 30 and the bell crank 33 are normally not in contact with each other. Reference numeral 4 designates a stopper projecting from the standing wall 3 to prevent the bell crank 33 from rotating beyond a certain level due to the spring 41. Reference numeral 42 denotes a cancel plate pivotally supported near the engaging portion 19 of the open lever 18, and a spring 45 is stretched between the cancel plate 42 and the open lever 18. Furthermore, an engaging surface 43 that can engage with the unlatching projection 14 is provided on the surface of the cancel plate 42 that faces the unlatching projection 14 . Reference numeral 25 denotes a lock lever that is pivotally supported on the main body 1, and a rod 36 that connects to a key box (not shown) and a rod 35 that connects to an inside lock knob (not shown) are attached to the bending points at both ends of the lock lever, and a rod 35 that connects to an inside lock knob (not shown) is attached to the bent portions at both ends. The bent portion 26 fits into the guide groove 20 of the open lever 18. 4
A solenoid 6 is fixed to the main body 1, and when energized, attracts the cancel plate 42 against the force of a spring 45.

The operation will be explained in the above configuration.

When the door is closed, the striker 7 enters the recessed groove 2 of the main body 1, engages the latch 8, rotates it, and releases the stopper 12 as shown by the two-dot chain line in FIG. The claw portion 13 is the locking portion 9 of the latch 8
It is locked in the latched state. In FIG. 3, which shows the same state, in order to release the latched state and open the door, the open lever 18 is actuated by operating the inside handle or the outside handle, and the engagement portion provided on the open lever 18 is operated. 19 and the unlatching protrusion 14 of the stopper 12, the stopper 12 is rotated, and the claw portion 13 of the stopper 12 is released from the latch 8. The next operation to lock the door is to swing the lock lever 25 by pushing in the inside lock knob or turning the key in the key box in the latched state when the door is closed as shown in FIG. Since the bent portion 26 moves into the guide groove 20 of the open lever 18, the open lever 18 also moves accordingly.
As shown in FIG. 4, the engaging part 19 of the open lever 18
Since the lever leaves the engagement position with the unlatching protrusion 14 of the stopper 12, even if the inside handle or the outside handle is operated in this state, the engagement portion 19 of the open lever 18 and the stopper 12 will be disconnected.
The door is not engaged with the unlatching protrusion 14, and the door is in the locked state.

The above functions are the same as those of known door lock devices.

Next, the functions provided by the present invention will be explained. As shown in FIG. 5, the solenoid is energized when three conditions are met: the door is opened, the inside lock knob is pushed in, and the key is inserted into the ignition key hole, and the cancel plate 42 is attracted to the position shown by the two-dot chain line in FIG. do. As mentioned above, when the inside lock knob is pushed in, the lock lever 25 swings and the open lever 18 is moved to the position shown in FIGS. Although it leaves the engagement position with the protrusion 14, the cancel plate 42 is removed due to the suction of the cancel plate 42 by the solenoid 46.
Since the front engagement surface 43 of the cancel plate 42 is placed in the engagement position with the unlatching protrusion 14, if the outside lever is operated in this state (so-called keyless lock operation), the engagement surface 43 of the cancel plate 42 will engage with the unlatching protrusion 14. 14 and rotates the stopper 12. Due to this rotation, the self-cancelling protrusion 15 of the stopper 12 presses the bent portion 21 of the open lever 18 to move the open lever 18, and this movement Along with this, the lock lever 25 is also guided by the guide groove 20, and the engaging part 19 of the open lever 18 is in the position shown in FIG.
Since the door returns to the engagement position with the unlatching projection 14 of No. 2, the door will not be locked even if the door is closed in this state.

As described above, according to the present invention, when the key is inside the vehicle, the door is self-cancelled and will not be locked even by the normal keyless locking operation, so there is no possibility of leaving the key in the vehicle. Further, unlike conventional devices, there is no need to separate the lever, so it can be easily incorporated into a normal door lock device. Furthermore, if you forget to remove the ignition key and try to operate the keyless lock, the inside lock knob will rise when operating the outside handle, so you will know that you have forgotten to remove the ignition key before closing the door. This invention has a great practical effect. have

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the front side of an automobile door lock device according to the present invention, and FIG. 2 is a front view of the back side thereof. 3 and 4 are partially omitted diagrams showing the operating state by omitting a part of FIG. 1. FIG. 3 shows the latched state, FIG. Plate 42 is solenoid 4
6 is shown. FIG. 5 is a schematic electrical circuit diagram showing the control system of FIG. 1. 1...Door lock body, 7...Striker,
8... Latch, 12... Clasp, 14... Unlatching protrusion, 18... Open lever, 19...
Engagement portion, 42...cancel plate, 46...
solenoid.

Claims (1)

[Scope of utility model registration request] A latch that locks the door into the latched state by engaging a latch that engages with a striker that enters the door lock body when the door is closed is pivoted on one side of the door lock body, and an unlatching protrusion provided on the latch is pivotally supported on one side of the door lock body. The engaging portion of the open lever is provided to protrude from the other side of the door lock body, and by pushing in the inside lock knob or rotating the key within the key box, the engaging portion of the open lever engages with the unlatching protrusion provided on the clasp. In a car door lock device that allows the door to be locked away from the locked position, a cancel plate is attached near the engagement part of the open lever so that the door is open, the inside lock knob is pushed in, and the ignition key is inserted. ,
Only when the engaging portion of the open lever is disposed in a position where it does not engage with the unlatching protrusion, the cancel plate is attracted by the suction action of the solenoid provided on the door lock body and engages with the unlatching protrusion. When the user forgets to remove the key and tries to operate the keyless lock, the inside lock knob rises to notify the user when operating the outside handle, and when the outside handle is operated when the key is removed, a self-cancelling action is performed. An automobile door lock device characterized by: