JPS60148974A - Door lock control apparatus for car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automobile door lock control device that can electrically control and operate an automobile door lock.

(Prior Art) As shown in FIG. 1, a conventional automobile door lock control device includes an outside handle (B) for opening the door (A) provided on the outside of the vehicle, a key cylinder (C) for locking and unlocking, Inside handle for opening the door (D), which is also installed on the inside of the car.
, the lock knob for locking/unlocking (E), and the door lock body (F) provided on the free end side end surface of the door (A), etc. 8! The structural elements are connected as required using a connecting member such as a rod (G).

In addition, in order to control the locking and unlocking of the door lock body (F) from another location, such as the driver's seat, the door (A) in which the control mechanism elements (A) to (F) are incorporated may be electrically operated. The actuator (II) is connected to the locking/unlocking lever of the door lock body (F) and is remotely operated electrically.

(Disadvantages of conventional technology) In such a conventional door lock control device.

Each control mechanism element in the door (A) has a predetermined mounting position that is convenient for operation, and is connected between them by a connecting member such as a rod (G), so the length dimension, bending shape, etc. of the rod (G), A high degree of precision is required, and each rod (G)
A means for finely adjusting the working length is required at least at one end of the length.

Furthermore, there are a large number of rod connecting parts as described above, which makes it difficult to assemble to the door (A), and as a result, the layout of each control mechanism element must be done with consideration to assemblability, etc. As a result, there is a drawback that a suitable position convenient for operation cannot be expected.

In addition, each of the connecting rods (G) is interlocked with each other and operates simultaneously, so noise is generated inside the door (A), and in remote operation, the actuator (H
) has the disadvantage of generating particularly loud noise due to sudden operation.

This actuator (H) also generates driving force in both the locked and unlocked positions, and is required to stand still stably without power in both stop positions, so motors, clutches, etc. The drawback is that the structure used must be complex and expensive.

The above is about one door (A), and in a car with many doors, the number of parts can be increased to
This results in an increase in assembly man-hours, an increase in manufacturing time, etc., which ultimately leads to an increase in price.

(Objective of the Invention) The present invention provides improved operability, greater freedom in design, improved aesthetic appearance, and improved structure by performing all door lock operations using electrical switches and electrically controlling the door locks. It is an object of the present invention to provide a door lock control device for an automobile that can simplify the process and improve the ease of assembly, thereby eliminating the above-mentioned drawbacks.

(Structure of the Invention) The present invention has been made in view of the above-mentioned matters, and the gist thereof is as follows.

A door lock that is provided on either the vehicle body side or the door side and is removable with a striker provided on the other side, an unlocking actuator that is connected to an unlocking mechanism of the door lock, and a locking actuator that opens the door in a timely manner. An unlocking operation switch that is operated when opening the door, a locking and unlocking switch that is operated when locking or unlocking the door, and the locking,
A locking/unlocking storage means for storing either a locked state or an unlocked state according to the operation of the unlocking switch, and enabling or disabling the operation of the unlocking operation switch according to the storage state of the storage means. and an actuator drive means that drives the actuator in accordance with the output of the selection means when the selection control means makes the operation of the lock release operation switch valid. It is.

(Embodiment) FIGS. 2 to 6 show a specific embodiment of the present invention.

Figures 2 and 3 show the layout of control elements according to the present invention. (1) is a door opening operation part outside the vehicle, and the first lock of the door lock is located on the back of the door handle. A release operation switch (S-DI) is provided.

(2) is a door opening operation section inside the vehicle, and a second unlocking operation switch (S-02) is provided on the back side thereof.

(3) is a locking/unlocking operation unit provided on the inside of the door from inside the vehicle, in which a locking operation switch (S-Ll) and an unlocking operation switch (S-L2) are provided side by side.

(4) is a locking/unlocking operation unit provided on the outside of the front door from outside the vehicle, which locks and unlocks the contact provided on the key switch.
Used as an unlocking contact (S-Kl) (2 for S-).

(5) is a door lock body that is equipped with a solenoid actuator (6) for unlocking and can be engaged with and detached from a striker (7) provided at a suitable location on the vehicle body.

As shown in FIG. 4, the door lock body (5) includes a latch (8) that engages with the striker (7) and a pawl (9) that engages with the latch (8).

The pawl (9) rotates together with the open lever (11) via the pivot (10), and the open lever (11)
It is constantly biased by a torsion spring (12) in the direction of engagement of the pole (9), which is shown counterclockwise in the drawing.

The open lever (11) is connected to a plunger (13) of an actuator (6) fixedly installed at a proper position at the bottom of the door lock body (5).

When the actuator (6) is activated, the plunger (13)
is attracted, and the pole (9), which rotates together with the open lever (11), is rotated in the latch release direction.

When the pawl (9) rotates in the latch release direction, the pawl (9) and the latch (8) are disengaged, and the actuator (6) is operated by the door lock body (5) and the striker (7). ) can be unlocked and the door opened.

The door lock body (5) in the embodiment of the present invention is provided with an emergency manual unlocking means (14) to maintain safety.

For example, the door lock body (5) is provided with vertically parallel horizontal protrusions (17) (17) on the side frame plate (16) facing the inner panel (15) on the inside of the vehicle. Vertical pivot support pieces (19) (19) of a horizontally rotating manual operation handle (18) are pivotally attached to the projecting pieces (17) (17) with a shaft (20).

The handle piece (21) of the handle (18) is embedded in the four parts (22) provided on the inner panel (15),
Moreover, a torsion spring (23) is applied to the upper pivot piece (19) to bias it clockwise in FIG.

A lever piece (24) extends from the lower pivot piece (19), and the tip of the lever piece (24) is connected to an appropriate position of the open lever (11) via a connecting rod (25). It is.

When this handle (18) is rotated in the direction of the arrow in Fig. 5, the connecting rod (25) is pulled and the open lever (11
) in the latch release direction to unlock the door lock body (5).

The handle (18) is used only in emergencies and is not normally used. Therefore, it is advisable to provide a cover (26) for safety.

In addition, in the open lever (11), the plunger (13) of the actuator (6) and the manual operation handle (
The inner connecting part of the connecting rod (25) connected to the connecting rod (25) has an arc-shaped long hole (lla: (
llb) and none.

In this embodiment, the door lock body (5) is provided on the door side, and the striker (7) is provided on the vehicle body side.
The door lock body (5) may be provided on the vehicle body side, and the striker (7) may be provided on the door side. In this case, the handle (18) is provided on the vehicle body side.

FIG. 6 shows an example of electrical control.

The lock operation switch (S-Ll) controls the set/reset type flip-flop circuit (30) to the reset state, and the unlock operation switch (S-L2) controls the same slip-flop circuit (30). Control to set state.

The flip-flop circuit (30) is a storage means for storing the last operation specifying locking or unlocking by one of the locking and unlocking operation switches (S-LL) (S-L2).

The memory content of this flip-flop circuit (30) is a selection control for selecting whether to enable or disable the operation of the unlock operation switch (S-DI) outside the vehicle and the unlock operation switch (S-02) inside the vehicle. controlling means (31);

The selection control means (31) includes, for example, an analog gate circuit, a logic gate circuit, a relay contact, etc., and may also be a set/reset type flip-flop circuit as shown in FIG. . In both cases, the output (
0), the lock release operation switch (S-DI)
Selective control is performed to pass or enable the operation signal (S-02), or to block or ignore it.

The selection control means (31) includes a flip-flop circuit (3
0) is in the set state when the lock is unlocked, the operation signal of the switch (S-Di) (S-D2) is passed or enabled, and its output is used to control the subsequent set/reset type flip-flop circuit (32). Set state.

The output (0) of the flip-flop circuit (32) in this set state is transmitted through the actuator drive circuit (33),
Activate the actuator (6) to lock the door lock body (5).
) can be unlocked to open the door.

When the lock is released and the striker (7) separates from the latch (8) and the door is opened, the door open detection switch (Sw), which detects the door state as appropriate, closes and the flip-flop circuit (32 ) to reset.

However, even though the drive circuit (33) operates to operate the actuator (6), for some reason, such as the door not opening due to a foreign object,
If the door open detection switch (Sv) is not closed, the actuator (6) may be damaged, so the actuator (6) has a certain limit on its operating time.

This timed operation is obtained by means of a monostepple multivibrator circuit configuration in which the output of the flip-flop circuit (32) is fed back to the reset input via a delay circuit (34).

In addition, when the flip-flop circuit (30) is in a reset state and the lock is closed, the switch (S-DI)
The operation signal (S-02) is blocked or ignored by the selection control means (31), so the actuator (6) cannot be operated and the door cannot be opened.

The flip-flop circuit (35) is connected to other control elements that are additionally added as necessary, such as child-proof locking and unlocking operation switches (S-CI) (S-C2).
It is a locking/unlocking memory means.

The memory contents of this flip-flop circuit (35) are selectively enabled or disabled only for the lock release operation switch (S-02) inside the vehicle by another selection control means (36) similar to the above. to control.

In addition, the or gate shown with wired or (
37) For (3g), in a practical circuit configuration, an OR gate circuit using a semiconductor IC is preferable, and the selection control means (3
1) (36) is also preferably an AND gate circuit using a semiconductor IC.

Power for the above-mentioned control circuit is supplied directly from the car's battery, and the power is not cut off by the main start switch on the driver's seat.

However, it is better to supply power for the lock/unlock display described below through the main switch to prevent unnecessary power consumption.

The storage state of the flip-flop circuits (30) (35) can be displayed by lighting a display means such as a light emitting diode using either the output (0) or (0).

The display location such as the light emitting diode for indicating lock/unlock may be on the panel surface of the driver's seat, inside the switch, or both.

In addition, after turning on the main switch, light emitting diodes etc.
It is effective to increase safety by displaying a blinking display for a certain period of time to draw attention to the locked or unlocked state of the door, such as after the door is locked or unlocked.

(Effects of the Invention) As described above, by replacing the control mechanism elements other than the door lock body (5) with electric switches, the mechanical connecting rod is no longer required, and the configuration of the door lock control device is simplified. At the same time, the generation of mechanical noise during operation and the possibility of noise generation due to vibration during driving are completely eliminated, and moreover, freedom in installation to the door, aesthetic design, layout, etc. is increased, and the conventional It is possible to obtain many effects that cannot be obtained with a mechanical door lock control device.

Furthermore, the operability of door opening and locking operations has been improved, and remote control has been made easier, allowing remote locking and unlocking of each door from the driver's seat and simultaneous opening of all doors in an emergency. etc., and can improve safety.

(Modification) FIG. 7 shows an example in which the selection control means (31) using an AND gate or the like in FIG. 6 is omitted and a flip-flop circuit (32) is used as the selection control means (31a).

A flip-flop circuit (30
) is input to the reset input of the flip-flop circuit (32) in the form of an OR gate (3g') with other inputs.

When done in this way, the flip-flop circuit (30)
When the storage contents of the flip-flop circuit (32) are in the locked state, the flip-flop circuit (32) is always held in the reset state by the output of the flip-flop circuit (30).

Therefore, the lock release operation switch (
, 5-DI) (S-02) is input to the set input of the flip-flop circuit (32), the input is ignored and does not shift to the set state.

Further, when the flip-flop circuit (30) stores the unlocked state, the flip-flop circuit (30) stores the unlocked state.
) is ignored by the OR gate (3g'), which causes the flip-flop circuit (32) to
It operates in exactly the same way as in FIG. Figures 6 and 7 above
The example shown in the figure is for the rear door, but for the front door, the locking contact (S-Kl) of the key switch in the locking/unlocking operation part (4), the unlocking contact (2 on S-) into the corresponding locking operation switch (S-LL) and unlocking operation switch (S-L2).

[Brief explanation of drawings]

FIG. 1 is a perspective view of a door showing a conventional door lock control mechanism, FIG. 2 is a perspective view of an automobile showing the layout of control elements according to the present invention in an automobile, and FIG. 3 is a rear part of FIG. 2. FIG. 4 is a front view of the door lock body as viewed from the line X-X in FIG. , FIG. 6 is a block diagram showing one embodiment of the electric control circuit according to the present invention, and FIG. 7 is a block diagram showing another embodiment in which a part of the electric control circuit of FIG. 6 is changed. . (1) (2) Door opening operation part (:3) m locking/unlocking operation part (5) Door lock body (6) Actuator (7)
Striker (11) Open lever (16) Manual lock release means (30) (32) (35) Flip-flop circuit (31) (31a) (36) Selection control means (33)
Actuator drive circuit (34) Delay circuit (37) (38) Wired OR gate (S-ol)
(S-D2) Lock release operation switch (S-LL)
(S-C1) Lock operation switch (S-L2) (S-
C2) Unlocking operation switch (1 on S-) Locking contact (
2) Unlock contact (Sw) door open detection switch on S-

Claims (1)

[Claims] A door lock that is provided on either the body side or the door side of an automobile and that is removable with a striker provided on the other side, an unlocking actuator that is connected to an unlocking mechanism of the door lock, and a door lock that opens the door during normal operation. A lock/unlock switch that is operated when the door is locked or unlocked; and a lock/unlock switch that is operated when the door is locked or unlocked, and either locked or unlocked depending on the operation of the lock/unlock switch. a locking/unlocking storage means for storing the lock/unlocking operation switch; a selection control means for selecting whether to enable or disable the operation of the unlocking operation switch according to the storage state of the storage means; an actuator drive means for driving the actuator according to an output of the control means when the operation of the door lock controller is enabled.