JPH08105254A - Door lock remote control system and its transmitter - Google Patents

Abstract

PURPOSE: To facilitate the remote control operation for locking and unlocking of doors so as to prevent erroneous operation. CONSTITUTION: When the push buttons 3 and 4 of a portable transmitter 1 are pressed, the locking and unlocking of a vehicle side door is controlled by radio. The generation of code signals for unlocking requires additional continued pressing of the unlocking push button 4 for short time after the pressing of the unlocking push button 4. After the code signals for unlocking have been generated, electronic sounds are emitted. When the push buttons 3 and 4 are pressed continuously after locking and unlocking, a power window device interlockingly opens and closes windows controllably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock remote control system for wirelessly locking (locking) and unlocking (unlocking) a door of a vehicle such as an automobile using a portable transmitter, and a portable transmitter used therefor. Regarding

[0002]

2. Description of the Related Art Conventionally, various types of door lock remote control systems have been proposed.

For example, in the "electromagnetic door lock control system" disclosed in Japanese Patent Application Laid-Open No. 56-25585, a plurality of key switch buttons for inputting a personal identification code (for example, a numeric input button of 0-9 and a code input button are provided in a code generator. (Alphabet input buttons such as A to F) are provided, and when the personal identification code input by the button operation is converted into a radio signal and transmitted to the vehicle side, when the matching code stored in the vehicle matches the lock or unlock. There is a method. Although this method has certainty in preventing vehicle theft, it cannot lock / unlock the person who forgets the secret code or needs to lock / unlock the door without knowing it. , Inputting the PIN is complicated.

Therefore, instead of this, a door lock remote control which enables a locking / unlocking operation by simply transmitting a code signal relating to locking and a code signal relating to unlocking by radio waves using a one-touch push button operation of a portable transmitter. A system has been proposed. This method is becoming popular because it enables locking / unlocking by one-touch button operation each time the vehicle gets in and out, and is easy to lock / unlock even when carrying luggage in both hands.

For example, in the "radio wave type key system" described in Japanese Patent Laid-Open No. 59-24075, a door switch unlocking, a trunk lock unlocking, etc. can be selectively enabled by a selection switch provided in a portable transmitter. In addition, JP-A-60-33
No. 987, “Keyless switchgear” and Japanese Patent Laid-Open No. 60-1
In the "electric wave lock" described in Japanese Patent No. 38190, a radio wave signal (radio signal) of a specific code is transmitted to the vehicle side by one push button switch provided in the transmitter, and when the vehicle side receives the specific code signal, the door is opened. A system has been proposed that unlocks when the lock is in the locked state and locks when the lock is in the unlocked state.

[0006]

Of the above-mentioned conventional techniques,
A door lock remote control system that enables locking and unlocking operations by simply sending a code for door lock (locking) and a code for unlocking (unlocking) has simple operation, but is almost one-way communication. ,
The door lock knob may not be visible if you perform remote control at a distance or in the dark.
Especially, when the remote control of locking and unlocking is performed by one push button, the locking and unlocking operations for the code signal sent from the transmitter are determined according to the current door locking and unlocking state. If the operator does not know the current state of the door, it may be difficult to judge whether the push button operation performed by the transmitter is for locking or unlocking. Also, when the portable transmitter is stored in a pocket of clothes, etc., the push button may be accidentally touched, or the push button may be hit by another object and the door may be unlocked unintentionally. there were.

Further, in a place susceptible to radio interference, there is a problem that the remote control for locking and unlocking is obstructed by the interfering radio waves.

In order to solve this, it is conceivable to use two-way communication between the transmitter and the receiver on the vehicle side to display locking and unlocking and to notify the state, but the system is expensive. It is difficult to put it into practical use in terms of cost.

Further, in the conventional remote control system of this kind, the main purpose is only to lock and unlock the door. When getting in a car, there is a lot of experience to open the window before the door is unlocked and let out the heat outside the car, and there is a need to easily eliminate this.

The present invention has been made in view of the above points, and firstly, the remote control operation for locking and unlocking is simple, and with certainty without using bidirectional communication, An object of the present invention is to provide a highly reliable door lock remote control system or its transmitter that can prevent malfunction.

Secondly, the door can be locked and unlocked from the outside of the vehicle by using one portable transmitter, and the vehicle window can be opened and closed by the lock push button and the unlock push button. It is to provide a door lock remote control system.

[0012]

In order to achieve the above object, the present invention basically proposes the following means for solving the problems.

According to a first aspect of the present invention, a code signal relating to locking and unlocking is wirelessly transmitted to a vehicle with a corresponding receiver using a portable transmitter, and the door lock actuator is driven and controlled by this specific code signal to control the door. In a system for remotely controlling locking and unlocking, a lock push button switch and an unlock push button switch are provided on the main body of the portable transmitter, and at least a code signal relating to unlock is generated when the unlock signal is generated. A condition is set that requires not only pressing the push button switch for a certain period of time but also holding the button for a short period of time thereafter, and a means for informing the button holding time required for generating the code signal for unlocking is provided. Is characterized by.

As an example thereof, the time condition for generating the code signal relating to the unlocking is set as follows using the code signal generating means with a time counting function (for example, constituted by a microcomputer). . That is, after the push-button switch for unlocking is pushed, the time for which the push is continued is counted, and when the count value reaches a predetermined value, the code signal for unlocking is generated.

On the other hand, the means for notifying the button-holding time required for generating the code signal for unlocking is to use an electronic sound generator, during the button-holding time or after the button-holding time. It can be considered to generate an oscillating sound.

Further, the portable transmitter, when pressing the lock push button switch or the unlock push button switch, transmits a plurality of code signals relating to the lock or unlock corresponding to the push button switch serially to the vehicle side. Those with circuits are also proposed.

A second aspect of the present invention wirelessly transmits a code signal relating to locking and unlocking to a vehicle with a receiver, and the door lock actuator is drive-controlled by this specific code signal to lock and unlock the door. In the remote control portable transmitter, the portable transmitter body is thin enough to rest in the palm of the hand, and the lock push button switch and the unlock push button switch have a flexible operation surface. The operation surface of the unlocking push button switch is a concave surface, and the operation surface of the locking push button switch is a convex surface, and the operation surface of each of the locking and unlocking push button switches is It is characterized in that the size of the button arranged in the lock is larger for unlocking than for locking.

As an optimal example thereof, the operation surfaces of the locking push button switch and the unlocking push button switch are arranged on the left and right on one panel surface within a range that can be reached by the left and right thumb shift operations, and the operation of these push button switches is performed. As the surface, it is proposed that the operation surface of the left push button switch is arranged slightly diagonally below the operation surface of the right push button switch as viewed from the front of the panel to the left in accordance with the rotation trajectory of the left and right thumb shifts.

A third aspect of the present invention operates a locking push button switch and an unlocking push button switch provided in a portable transmitter to wirelessly transmit a code signal relating to locking and unlocking to a vehicle with a corresponding receiver. A system for remotely controlling door locking / unlocking by driving and controlling a door lock actuator by a specific code signal, wherein the remote control target vehicle is a vehicle with a power window, while the portable transmitter is for locking the door. Continue pressing the push button switch or the unlocking push button switch, or by adding this combination and any combination of the locking push button switch and the unlocking push button switch, the specific code signal continues to be locked and unlocked. The transmission is set to the receiver on the vehicle side, and the lock push button switch or the unlock push button is set after the door is locked or unlocked. Window closed by a continued specific code signal transmitted by the hold of the switch is characterized by being configured to be remotely controlled.

In this case, the portable transmitter has an operation sound generator for generating an operation sound for locking and unlocking the door, and after the operation sound is generated, the lock push button switch and the unlock push button switch are continued. A system that is set to remotely control the opening and closing of the window by pressing and holding,
The portable transmitter has a transmission circuit that generates a plurality of code signals related to locking and unlocking when the push button switch for locking and the push button switch for unlocking are pressed and serially transmits the signal. If a code signal related to locking / unlocking is received even after locking / unlocking, each time the code signal is received, there is a control circuit that outputs a drive signal for opening / closing the power window for a certain period of time according to the type of code signal. Then
In addition, the portable transmitter has a plurality of code signals on the vehicle side that forcibly stop the drive of the power window even when the drive of the power window is in the middle of the certain time when the lock push button switch and the unlock push button switch are released. We also propose a system that is set up for serial transmission.

[0021]

The operation of the first aspect of the invention: Since the portable transmitter is provided with the lock push button switch and the unlock push button switch separately, the operator has the lock and unlock push button switches at hand. By confirming and properly using these push button switches, the operation of locking and unlocking the door can be surely remote-controlled in accordance with the intention and the ease of operation is enhanced. In addition, the code signal related to unlocking is set by not only pressing the unlocking push button switch but also holding it for a short time (for example, several seconds) after that. Even if the lock push button switch is touched or pressed, the code signal for unlocking is not transmitted to the vehicle-side receiver unless the button is held intentionally. It can be prevented.

Further, in the unlocking operation as described above, how long the push button switch should be held is as follows.
Since it informs the duration of pressing and holding (for example, an electronic sound generator generates a dial tone during the duration of pressing the button or after the duration of pressing the button), it is easy to recognize that the unlocking operation has been performed. It will be possible.

Operation of the second invention: Locking provided on the transmitter,
Among the pushbutton switches for unlocking, the operating surface on the panel has a convex side on the locking side and a concave side on the unlocking side, so the locking and unlocking pushbutton switches can be easily identified only by tactile sensation, and the button operation can be performed. Can be operated without mistakes, and even if the remote control is performed from a relatively long distance, locking and unlocking operations can be performed without checking the state of the door lock knob.

Further, since the operating surface of the unlocking push button switch is made concave, it is difficult to push only the recessed portion, so that careless unlocking operation is prevented. Ergonomic consideration is given to the arrangement of the push button switches so that the push button switch for locking and the push button switch for unlocking can be easily operated by a thumb shift, thereby improving the ease of operation. Also, if the diameter of the button under the operation panel on the unlocking push button switch side is made larger than the diameter of the button of the locking push button switch, the pressure receiving area of the finger from the operating surface of that button is increased, and the operating surface is dented. There is no difficulty in pushing a minute.

Operation of the third invention: When the portable transmitter keeps pressing the locking push button switch and the unlocking push button switch, each code signal is continuously transmitted to the vehicle side receiver even after the door lock is locked and unlocked. Send. After the door is locked or unlocked, the transmitter and the actuator drive circuit of the power window are wirelessly linked via the receiver, and each code signal is continuously transmitted by pressing and holding the lock and unlock push button switches. Opens and closes the window remotely.

Here, if the lock push button switch is kept pressed even after the door is locked, the vehicle window will be closed if it is open.

On the other hand, if the push button switch for unlocking is kept pressed after unlocking, it will be opened if the vehicle window is closed.

[0028]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view of use of a door lock remote control system according to an embodiment of the present invention, FIG.
3A to 3C are perspective views of the transmitter, a perspective view of the transmitter seen from the back, and a perspective view showing a battery mounting state thereof.
FIG. 4C is a block diagram of a transmitter and a receiver and an explanatory view showing a transmission code signal thereof, FIG. 4 is a time chart showing an operation state when the door lock remote control system and a power window actuator are electrically linked,
5 to 8 are sectional views showing the external appearance and internal structure of the transmitter and an explanatory view showing a state in which the parts thereof are taken out, FIG. 9 is an explanatory view of the receiver mounted on the vehicle side, and FIG. 10 is an explanatory view of the indicator. FIG. 11 is an explanatory diagram showing a battery mounting state to the transmitter. The vehicle targeted for the door lock remote control can be locked and unlocked using a normal key.

As shown in FIG. 1, the door lock remote control system according to this embodiment basically uses a portable transmitter 1 to wirelessly transmit a code signal relating to locking and unlocking to a receiver 10 on the vehicle side. The door lock actuator (the door lock actuator is an actuator that locks and unlocks the door) is driven and controlled by this code signal to remotely control the locking and unlocking of the door. Reference numeral 20 denotes an indicator indicating a locked / unlocked state. For example, a red light blinks several times when locked and a green light blinks several times when unlocked. It Hereinafter, these components will be described in detail.

As shown in FIGS. 1 and 2A, the portable transmitter 1 has a shape of a thin key holder type in which the main body 1A rests on the palm, and includes a lock push button switch 3 and an unlock push button switch 4. However, the operation surface is separately arranged on one panel 2 surface made of a flexible plastic film so that the thumb shift operation can be performed.

Of these, as shown in FIG. 6, the operating surface 4A of the unlocking push button switch 4 is a concave surface, and the locking push button switch 3 is
The operation surface 3A is made convex so that the type of the push button switch can be sensed by touch. In addition, the reason why the operation surface 4A of the unlocking push button switch 4 is made concave is to prevent the unlocking operation from being inadvertently performed because it is difficult to press the recessed portion. The push button switch 3 for locking and the push button switch 4 for unlocking correspond to the respective operation surfaces 3A, 4A under the panel 2 and the respective intermediate buttons 3B, 4B and button switch bodies 3C, 4C.
When the operation surfaces 3A and 4A are pressed with a finger, the button switch bodies 3C and 4C are respectively inserted through the intermediate buttons 3B and 4B.
When the button contact is closed by pressing and the finger is released from the operation surfaces 3A and 4A, the button switch bodies 3C and 4C are automatically restored to open the contact. The diameter of the intermediate button 4B on the unlocking push button switch 4 side is made larger than the diameter of the intermediate button 3B on the locking push button switch 3 side to increase the pressure receiving area of the finger from the operation surface 4A of the intermediate button 4B. Care is taken not to cause difficulty in pressing due to the depression of the surface 4A, and in this way the usability of the unlocking push button switch 4 is improved.

As shown in FIG. 5, the lock push button switch 3 and the unlock push button switch 4 are arranged on the left and right on one panel surface within a range in which the operation surfaces 3A, 4A can be reached by the left and right thumb shift operations. These operation surfaces 3A and 4A are provided on the left side push button switch (here, in accordance with the rotation trajectory of the thumb shift).
The operation surface 4A of the unlocking push button switch 4) is arranged slightly diagonally below the operation surface 3A of the right push button switch (locking push button switch 3) when viewed from the front of the panel. As shown in FIG. 1, the thumb shift operation rotates around the base of the thumb as the center of rotation. Therefore, by arranging the position of the left button slightly downward with respect to the position of the right button, the thumb can be rotated to the left and right (especially in the case of being right-handed in this case) (in the case of right-handed people). When the button is shifted, the button switches are automatically moved to their respective positions, and the button shift operation with the thumb is natural and easy to use.

As shown in FIGS. 6 (A) and 6 (B), the transmitter main body 1 has an upper case 31 and a lower case 32 combined together, and the switch elements 3B, 3C and 4B, and In addition to 4C, a control unit (substrate) 33 and a coin type battery, for example, a lithium battery 11 are inserted.
The control unit 33 is provided with circuit elements of a transmitter (circuit elements of FIG. 3A), which will be described later, on both sides of its substrate, and button switch bodies 3C and 4C are also attached to one side thereof, and the other side is provided with As shown in FIG. 7 (A), the (+) terminal 36, which contacts the (+) pole of the battery 11 from the side direction and contacts the lead plate 37, and the annular (-) which contacts the (-) pole of the battery 11. ) A terminal 35 and its lead plate 38 are provided.
The (+) terminal 36, the lead plate 37, the (-) terminal 35, and the lead plate 38 are formed by bending a thin plate plated on a copper plate, and the elastic force of the bent pieces holds the battery 11 in contact.
Here, the (-) terminal 35 is the three tongue pieces 3 arranged at equal intervals.
5'becomes a folded piece, and the (+) terminal 36 itself makes a folded piece.

As shown in FIGS. 2 (B) and 2 (C), the battery 11 can be replaced by removing the back cover (battery cover) 6 from the case body 1A.
It is removably attached to the lower case 32 with screws 7. Reference numeral 9 is a hole for accommodating the battery 11, and a pair of locking pieces (projections) 8 for preventing the battery from coming off are arranged on the periphery of the hole. 6A and 6B are screw holes.

When the battery 11 is installed, the battery 11 (-) is attached to the transmitter body 1A as shown in FIG.
If you press it diagonally against the folded piece 35 'of the terminal 35, the folded piece 3
When 5'is displaced and the battery 11 is further inserted, it engages with the locking piece 8, and at this time, one of the locking pieces 8 and the (+) terminal (folded piece).
The battery 11 is held by the elastic force of 36. Further, the battery 11 is held by the elastic force of the battery cover 6 and the folded piece 35 ′ of the (−) terminal 35. Since the bent piece 35 'of the (-) terminal 35 is displaced in the direction perpendicular to the plate thickness, the rigidity is high regardless of the thin plate and a high contact load can be obtained on the battery 11. A portion indicated by reference numeral 34 in FIG. 6B is a chain stopper of the holder.

Here, the circuit configuration of the portable transmitter 1 and the circuit configuration of the vehicle-side receiver 10 and their operation will be described with reference to FIG.
This will be described with reference to FIG.

As shown in FIG. 3 (A), the transmitter 1 inputs a lock push button switch 3, an unlock push button switch 4, and these switch signals to generate a specific code signal relating to lock and unlock. Microcomputer (code signal generating means with time counting function) 12, power supply circuit 14 for the entire transmitter, oscillation modulation circuit 1 for wirelessly transmitting a specific code signal
5, a high frequency amplifier circuit 16 for amplifying a transmission signal, an antenna 17, and an electronic sound generator 13. The operating range of the transmitter is set to a short distance (for example, within 2 m) from the vehicle.

In the present embodiment, when the locking push button switch 3 is pressed and turned on (switch closed), the microcomputer 12 immediately generates a code signal relating to locking, and at the same time gives an output command to the electronic sound generator 13 to generate an electronic sound. For example, "(beep)" sounds only once.

On the other hand, when the unlocking push button switch 4 is pressed, the microcomputer 12 counts the time for which the button is kept pressed, and the count value is a predetermined value (about several seconds, for example, 2 to 3).
About a second), a code signal for unlocking is generated. In this way, the generation of the code signal for unlocking is performed by setting the condition that not only the push button switch 4 for unlocking is pressed but also the push button switch 4 for unlocking is continuously pressed for a short time thereafter. Further, after the code signal for unlocking is generated, in other words, after the button pressing time required for generating the unlocking code signal elapses, an output command is issued from the microcomputer 12 to the electronic sound generator 13, and the electronic sound (“pip Sound)) sounds once. Due to such consideration, even if the unlocking push button switch 4 is accidentally touched and pressed, the unlocking code signal is not transmitted to the vehicle-side receiver 10 unless the button is intentionally held. The transmission pattern of the code signal and the content of the code signal will be described after the description of the receiver 10 below.

The code signal for locking and unlocking is transmitted to the vehicle-side receiver 10 as a radio wave signal via the modulation circuit 15, the high frequency amplification circuit 16 and the antenna 17.

The receiver 10 is, as shown in FIG.
Antenna 21, high frequency amplifier circuit 22, mixer 23, demodulator 24, microcomputer 25, wave detector 26, relays 27, 28
The antenna 21 catches the code signal sent from the transmitter 1, and the received signal is demodulated by the demodulator 24 through the high frequency amplifier circuit 22, the mixer 23,
The detector 26 and the microcomputer 25 output to the relays 27 and 28 corresponding to the received signal. Here, the receiver 10 uses a door lock actuator via a relay 27, 28 according to a command from the microcomputer 25 (not shown, but here, a door lock actuator of a negative pressure mechanism using a vacuum pump is used, but other electromagnetic locks are used. The drive circuit (which may be a mechanism) (not shown) and the drive circuit (not shown) for the power window are electrically linked.

In this embodiment, the push button switch 3 of the transmitter 1 is used.
When is pressed, the microcomputer 12 generates a code signal related to locking, and when the push button switch 4 is pressed, the microcomputer 12 generates a code signal related to unlocking. The code signal is, for example, as shown in FIG. 3 (C), a 9 ms synchronization pulse first, and then an 18-bit I / D code (vehicle identification number),
SW bit (Switch signal that distinguishes between locking and unlocking is 2
Bits), a secret key code (8 bits), and a pulse train group of secret data (20 bits) corresponding to the secret key code, and these code elements are sent to the receiver 10 side of the vehicle by serial communication. On the vehicle side, it is determined whether or not this received signal matches the collation code stored in the microcomputer 25 in advance.
In consideration of the door lock information (information about whether the door is in the locked or unlocked state) input to, the lock command or the unlock command is output to the door lock actuator according to the content of the SW code. In this embodiment, when the push button switches 3 and 4 are pressed, the microcomputer 12 on the transmitter 1 side issues a specific code for locking and unlocking by one push-back operation (push-back operation for a minimum time) without continuously pressing. A plurality of (for example, 10 specific codes) are configured to be serially transmitted (if the button switch is continuously pressed, a plurality of specific codes are repeatedly generated), and even if only one of them is received by the vehicle, A locking / unlocking command is set to be output from the microcomputer 25 on the vehicle side. As a result, the probability of receiving the specific code signal is increased even in a place where radio wave interference is likely to occur and noise is easily affected.

The portable transmitter 1 includes a push button switch 3 for locking.
When the push-button switch 4 for unlocking is continuously pressed, it is set that the respective code signals are continuously transmitted to the receiver 10 on the vehicle side even after the door lock is locked and unlocked, and the receiver is locked after the door is locked and unlocked. The microcomputer 25 of 10 electrically links with the actuator drive circuit of the power window (in other words, the transmitter 1 wirelessly links with the power window actuator via the receiver 10),
Window opening / closing is remotely controlled by respective code signals continuously transmitted by continuously pressing the push button switches 3 and 4.

Here, if the lock push button switch 3 is continuously pressed after locking (after the locking operation sound is generated from the electronic sound generator 13), the vehicle window is closed if it is open.

On the contrary, if the push button switch 4 for unlocking is continuously pushed after unlocking (after the unlocking operation sound is generated from the electronic sound generator 13), it can be opened if the window of the vehicle is closed. . The remote control target of this power window may be all front and rear windows,
In addition, it may be limited to the driver's seat and the passenger's seat, and can be arbitrarily set by selecting an electrical link between the power window actuator of each window and the receiver 10. Further, in addition to the condition that the push button switches 3 and 4 are continuously pressed, an element that arbitrarily combines the pressing procedures of the button switches 3 and 4 may be included. For example, to open a window, first press the unlocking push button switch 4 and then press the locking push button switch 3 for several seconds or longer (for example, 2 seconds or more), and then release the lock within a predetermined time (for example, 10 seconds). It is also possible to set the lock push button switch 4 to be kept pressed to be electrically linkable with the power window. In this case, it is possible to reliably prevent the power window from being opened accidentally. .

FIG. 4 shows a time chart of the on / off operation of the lock code and the electric link of the power window for locking and unlocking.

FIG. 4A shows, for example, a state where the lock code (lock code) is normally received without interference, and the operating state of the power window at that time. As described above, A plurality of lock codes (here, a plurality of code signals are repeatedly generated by pressing and holding 10 buttons in this case) are serially transmitted by one push button operation in the minimum time unit (time of one lock code). Is 130 ms and an interval of 20 ms is set between each code signal), and each time each code is received, the driving time of the power window is 1200 ms (an integer multiple of the cycle of the code signal, which is 8 times here, Ie 8x
150 ms = 1200 ms), the power window drive signal is set to be continuously generated, and
When the push button switch (here, the push button switch 3 for locking) is released, the microcomputer 12 on the transmitter 1 side generates a key-off code, and when the receiver 10 on the vehicle side receives this key-off code, the power window is driven as described above. Fixed time (12
The circuit is configured by the microcomputer 25 so that it is forcibly stopped even in the middle of (00 ms). In this way, each time the power window receives a code signal, it outputs for a time sufficiently longer than one cycle, and its drive output time is updated (for example, a lock code of 1
If the lock code is received after the power window drive time of 200 ms is secured, the power window drive time of 1200 ms is newly updated at that time, and this is repeated in the same manner as. As for the generation timing of the drive signal of the power window corresponding to each lock code, there is a slight time lag compared to the corresponding code due to the control start-up as shown in the figure). n (up to the tenth here)
Even if some of them are not received due to radio interference, the probability that the power window operation is interrupted is extremely reduced, and power window remote control that is strong against radio interference and smooth is guaranteed.

For example, as shown in FIG. 4 (B), up to 7 lock codes (codes) are normally received, and thereafter, even if the push button switch is continuously pressed as indicated by the dotted line, the code signal is received due to radio interference. Even if not performed, the drive control of the power window is guaranteed for a minimum of 1200 ms from the last code normally received.

Further, even if the power window is driven for a sufficiently longer time than the code signal each time the code signal is received, the power window is immediately opened or closed by the key-off code when the push button switch is released. Since the operation is stopped, it is possible to prevent the risk that the hand of a child or the like is caught in the window even if the hand is inserted into the window.

As shown in FIGS. 9A and 9B, the receiver 10 includes an upper case 41 and a lower case 40, and the upper case 41 is elastically attached to the lower case 40. Lower case 4
A control unit (board) 45 of the receiver 10 is housed in the receiver 0. The control unit 45 includes the receiver elements 21 to 28 shown in FIG. The side plate of the lower case 40 is provided with a connector 42 for wiring connection, a display (for indicator) jack 43, and an antenna jack 44, and a control unit 45 is fixed to the lower case 40 with a set screw 46.

FIG. 10 shows the indicator 20 connected to the receiver 10 through the jack 43 and the connector 54. When the lock / unlock code signal is received, a message to that effect is displayed (in the case of lock). Blinks red and green for unlocking several times), and three light emitting diodes 52 are used here.

The indicator 20 is a disk-shaped case body 51 having a palm size, and includes an upper case 51A and a lower case 51.
B, and the light emitting diode 52 on the side surface of the case body 51.
Are arranged at equal intervals in the circumferential direction so that they can be visually recognized from the surroundings and any direction. Reference numeral 53 denotes a drive circuit board for the light emitting diode.

The effects of this embodiment can be summarized as follows.

(1) The generation of the code signal for unlocking is
Since a condition is set that requires not only pressing the unlocking push button switch 4 but also pressing the unlocking push button switch 4 for a short period of time thereafter, the unlocking push button switch 4 is mistakenly carried when the transmitter 1 is carried.
Even if the button is touched and pressed, the unlocking code signal is not transmitted to the vehicle-side receiver 10 unless the button is intentionally pressed and the unlocking malfunction can be prevented.

(2) When the push button switches 3 and 4 for locking and unlocking the transmitter are pushed, the microcomputer 12 on the transmitter 1 side causes a specific code relating to locking and unlocking by one push-back operation without continuously pressing. Is generated repeatedly, and even if one of them is received, it can be received, so that it is less susceptible to disturbance of the received signal and radio interference due to the radio environment in daily life.

(3) Of the locking and unlocking push button switches 3 and 4 provided on the transmitter, the operation surfaces 3A and 4A on the panel thereof.
As for the lock side, the lock side has a convex surface and the unlock side has a concave surface, so the lock / unlock push button switch can be easily identified only by the tactile sensation on the operation, and the button operation can be operated without mistake, and the remote control Even if the operation is performed from a distance, the locking and unlocking operations can be performed without checking the state of the door lock knob.

The operation surface 4A of the push-button switch 4 for unlocking
Since it is a concave surface, it is difficult to be pressed by the concave part,
It is possible to prevent unintentional unlocking operation when the transmitter is carried.

(4) With respect to the transmitter, the locking push button switch 3 and the unlocking push button switch 4 can be easily enabled by a thumb shift, and the arrangement of these push button switches is ergonomically easy to use. Therefore, even if it is a small transmitter such as a key holder type, the usability in operation can be improved. Since the diameter of the intermediate button 4B on the unlocking push button switch 4 side is made larger than the diameter of the intermediate button 3B on the locking push button switch 3 side, the pressure receiving area of the finger from the operation surface 4A of the intermediate button 4B is increased. Therefore, it is possible to improve the usability of the unlocking push button switch 4 by taking into consideration that the operation surface 4A is depressed so that it is difficult to push.

(5) Since the locking button switch and the unlocking button switch of the transmitter can be used as they are for the remote control system of the power window, the added value of the door lock remote control can be achieved by expanding the functions with one transmitter. Can be increased, and more needs can be met. Moreover, since the power window device is automatically linked by continuously pressing the locking push button or the unlocking push button, the link operation is very simple.

(6) Door lock When the remote control is electrically linked to the power window to open and close the window, the power window is sufficiently longer than one cycle of the code signal each time the code signal is received. Output,
And since the drive output time is updated, even if some of the code signals are not received due to radio interference, the probability that the power window operation will be interrupted is extremely reduced, and it is strong and smooth against radio interference. Power window remote control can be guaranteed.

(7) Since the remote control state of locking and unlocking can be visually recognized from all fields of view through the indicator, confirmation of locking and unlocking can be performed very easily.

[0063]

According to the first aspect of the present invention, the locking and unlocking operations can be performed by the operator with his / her own push button, and the code signal for unlocking is generated only by pushing the unlocking push button switch. Instead, the condition is set to require that you continue to press the button for a short while, so if you accidentally touch or press the unlock push button switch while carrying the transmitter, do not continue to press it intentionally. As long as the unlocking code signal is not transmitted to the vehicle-side receiver, it is possible to prevent the unlocking malfunction.

According to the second aspect of the invention, of the push-button switches for locking and unlocking provided on the transmitter, the operating surface on the panel has a convex surface on the locking side and a concave surface on the unlocking side. , The lock / unlock push button switch can be easily identified only by the tactile sensation on the operation, and the button operation can be operated without mistake, and even if the remote control is performed from a relatively long distance,
Locking and unlocking operations can be performed without checking the state of the door lock knob.

Further, since the operation surface of the unlocking push button switch is concave, it is possible to prevent the operator from inadvertently performing the unlocking operation when the transmitter is carried, because it is difficult to push only the recessed portion. .

Further, regarding the transmitter, the push-button switch for locking and the push-button switch for unlocking can be easily enabled by the thumb shift, and the arrangement of these push-button switches is ergonomically friendly. Therefore, even if it is a small transmitter such as a key holder type, the usability in operation can be improved.

Therefore, according to the first and second inventions,
To provide a highly reliable door lock remote control system or its transmitter, which simplifies remote control operations for locking and unlocking, and is accompanied by certainty without using bidirectional communication and can prevent malfunctions. You can

According to the third invention, since the locking push button switch and the unlocking push button switch of the transmitter can be used as they are for the remote control system of the power window, the function can be expanded by one transmitter. You can increase the added value of door lock remote control,
Can meet more needs. In addition, since the power window device is automatically linked by continuously pressing the locking push button or the unlocking push button, the link operation can be very simple.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of use of a door lock remote control system according to an embodiment of the present invention.

2A and 2B are a perspective view of a portable transmitter used in the above embodiment, a perspective view seen from the back, and a perspective view showing a battery mounting state thereof.

FIG. 3 is a block diagram of a transmitter and a receiver and an explanatory diagram showing transmission code signals thereof.

FIG. 4 is a time chart showing an operation state when a door lock remote control system and a power window actuator are electrically linked.

FIG. 5 is a front view of the portable transmitter used in the above embodiment.

FIG. 6 is an explanatory cross-sectional view showing the internal structure of the portable transmitter at different viewing angles.

FIG. 7 is an explanatory diagram showing a battery mounting state of the portable transmitter and a control unit removal state thereof.

FIG. 8 is a sectional view showing a part of the portable transmitter.

FIG. 9 is an external side view of a receiver used in the above embodiment and an explanatory view showing an internal structure.

FIG. 10 is an internal structural view, a side view and a cross-sectional view of the indicator used in the above embodiment.

FIG. 11 is a perspective view showing a battery mounting state of the transmitter in the above embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable transmitter, 3 ... Locking push button switch, 4 ... Unlocking push button switch, 10 ... Receiver, 11 ... Battery, 12 ... Transmitter microcomputer (code signal generating means with a time counting function), 13 ... Electronic Sound generator, 20 ... Indicator, 25
... Receiver microcomputer, 27, 28 ... Door lock actuator, power window actuator relay.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hidehiro Otani 2477 Kashima Yatsu, Takaba, Katsuta-shi, Ibaraki 3 Hitachi Automotive Engineering Co., Ltd. 2477 3 Hitachi Automotive Engineering Co., Ltd. (72) Inventor Hironori Shinozaki Kataka Yatsu Kashima Yatsu Katsuta City, Ibaraki Prefecture 2477 Address 3 Hitachi Automotive Engineering Co., Ltd. (72) Inventor Takayuki Muto 1-6 Shibaura, Minato-ku, Tokyo No. 42 in Western Corporation (72) Inventor Seiji Kajiura 1-642, Shibaura, Minato-ku, Tokyo Within Western Corporation (72) Inventor Akio Tsumura 1-42, Shibaura, Minato-ku, Tokyo Shares Company waste Down Corporation in

Claims (9)

[Claims] 1. A mobile transmitter wirelessly transmits a code signal relating to locking and unlocking to a vehicle with a corresponding receiver, and the door lock actuator is drive-controlled by the specific code signal to lock and unlock the door. In the system for remote control, a lock push button switch and an unlock push button switch are provided in the main body of the portable transmitter, and at least a code signal relating to unlock is generated by pressing the unlock push button switch. A condition is set that requires not only pressing but also pressing for a short time thereafter, and means for informing the button pressing duration required for generating the code signal for unlocking is provided. Door lock remote control system. 2. The time condition for generating the code signal for unlocking is that after the push button switch for unlocking is pressed, the time for which the button is kept pressed is counted, and when the count value reaches a predetermined value. Set by the code signal generating means with a time counting function for generating the code signal for unlocking, on the other hand, the means for informing the button press-and-hold time required for generating the code signal for unlocking is 2. The door lock remote control system according to claim 1, further comprising an electronic sound generator for generating a dial tone during a period of time or after the button is kept pressed. 3. The portable transmitter, when the lock push button switch or the unlock push button switch is pushed, serially transmits to the vehicle a plurality of code signals relating to the lock or unlock corresponding to the push button switch. The door lock remote control system according to claim 1, further comprising a circuit. 4. A code signal relating to locking and unlocking is wirelessly transmitted to a vehicle with a corresponding receiver by operating a locking push button switch and an unlocking push button switch provided in a portable transmitter,
A system for remotely controlling door locking / unlocking by driving and controlling a door lock actuator by this specific code signal, wherein the remote control target vehicle is a vehicle with a power window, while the portable transmitter is The push-button switch for unlocking or the push-button switch for unlocking is kept pressed or a combination of this push-button switch and push-button switch for unlocking is added to continue to lock / unlock the door, and the specific code signal is continued. Is set to be able to be transmitted to the receiver on the vehicle side, and after the door is locked and unlocked, the window opening and closing is performed by a specific code signal continuously transmitted by continuously pressing the locking push button switch and the unlocking push button switch. The remote control of the door lock is characterized by being configured to be remotely controlled. Roll system. 5. The portable transmitter has an operation sound generator that generates an operation sound for locking and unlocking the door, and after the operation sound is generated, the lock push button switch and the unlock push button switch are continuously operated. The door lock remote control system according to claim 4, wherein the window opening and closing is remotely controlled by pressing and holding the window. 6. The portable transmitter has a transmission circuit for generating a plurality of code signals relating to locking and unlocking when the locking push button switch and the unlocking push button switch are pressed and serially transmitting the signal. On the vehicle side, if the code signal related to the locking and unlocking is received even after the locking and unlocking, each time the code signal is received, the drive signal for opening and closing the power window is output for a fixed time according to the type of the code signal. A code that has a control circuit for operating the power transmitter and forcibly stops the driving of the power window even when the driving of the power window is in the middle of the predetermined time when the locking push button switch and the unlocking push button switch are released. The door lock remote control system according to claim 4 or 5, wherein a plurality of signals are set to be serially transmitted to the vehicle side. 7. The vehicle side is provided with an indicator for receiving a code signal relating to locking and unlocking from the portable transmitter and identifying and displaying a locked and unlocked state. 7. The door lock remote control system according to claim 6. 8. A portable transmitter for wirelessly transmitting a code signal related to locking and unlocking to a vehicle with a receiver, and driving and controlling a door lock actuator by this specific code signal to remotely control locking and unlocking of a door. In, the portable transmitter body is thin so that it can be placed on the palm of the hand, and the lock push button switch and the unlock push button switch are arranged such that the operation surfaces thereof can be operated by the thumb shift. Is a concave surface, the operation surface of the locking push button switch is a convex surface, and the size of the button arranged under each operation surface of the locking and unlocking push button switch is the one for unlocking. A portable transmitter for door lock remote control characterized by being made larger than the one. 9. The operation surfaces of the locking push button switch and the unlocking push button switch are arranged left and right on one panel surface within a range that can be reached by the left and right thumb shift operations, and the operation surfaces of these push button switches are: 9. The operation surface of the left push button switch is arranged slightly obliquely downward to the left as viewed from the panel front side with respect to the operation surface of the right push button switch in accordance with the turning locus of the left and right thumb shifts. Portable transmitter for remote control of door lock.