JPH068215Y2 - Key device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] <Industrial field of application> The present invention relates to a key shank for operating a mechanical locking device with a case body containing an electronic circuit for transmitting a specific code signal. The present invention relates to a key device fixed to a base end.

<Prior Art> Various key devices have been proposed in which an electric code (digital pulse) is used to operate a vehicle door lock device. According to this, since the remote control of the lock device can be performed without inserting the key into the key hole, the troublesomeness of the unlocking operation at night or when carrying luggage is extremely high and the convenience is extremely high. Can be obtained.

In such a key device, it is desirable that a mechanical lock device such as a cylinder lock can be locked / unlocked in the same manner as a conventional type key and that it does not interfere with carrying. The electronic circuit is built into the grip of the key.

As a manufacturing that incorporates an electronic circuit in the grip part of the key,
For example, as disclosed in Japanese Unexamined Patent Publication No. 60-207582, an electronic circuit accommodating portion is recessed in the base of a key shank, and in a car formed in two, an electronic circuit is provided at the base of the key shank. Of the key shank as disclosed in Japanese Utility Model Laid-Open No. 61-115466, and the base part of the key shank is sandwiched from both sides by a case that is divided into two, and the space is formed in the case. A structure or the like adapted to accommodate an electronic circuit has been proposed.

<Problems to be solved by the invention> However, according to the above-mentioned structure, since the base of the key shank is sandwiched between the two, the case is fixed to the base of the key shank. However, there is a problem in that workability is poor, and screw holes are exposed in the grip portion of the key, and the feel and design are impaired. In addition, the sealing property of the joint surface between the two halves of the case formed in two can be a problem. In addition, when the case is disassembled for battery replacement or the like, it is easy to separate into a large number of parts, and the handling thereof tends to be complicated.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and its main purpose is to construct a grip portion having excellent assembly workability and sealability, high rigidity, and high designability. An object of the present invention is to provide a key device having a structure of a case body to be obtained.

[Structure of the Invention] <Means for Solving the Problems> According to the present invention, a case body having an electronic circuit for transmitting a specific code signal operates a mechanical locking device. A key device fixed to a base end of a key shank, wherein the case body has a flat bottom portion integrally insert-molded with the base end portion of the key shank and one axial end surface of which is open. There is provided a key device comprising a cylindrical body with a bottom, the circuit board having the electronic circuit mounted therein is accommodated in the cylindrical body through the opening, and the opening is closed by a lid. To be achieved. Particularly, it is preferable that the circuit board is fixed to the inner surface of the lid.

<Operation> As described above, the case body that houses the electronic circuit is formed into a cylindrical shape with a bottom, and the base end portion of the key shank is insert-molded on the bottom portion of the case body. The base end of the key shank and the case body are completely integrated, and the joint strength and the rigidity against the torsion torque during operation are enhanced. Further, if the circuit board is fixed to the inner surface of the lid body, the circuit board can be attached and detached together with the lid body, so that assemblability and maintainability such as battery replacement can be improved.

<Embodiment> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show a vehicle key device constructed according to the present invention. This key device 1 includes a key shank 2 formed by forming a key having a predetermined contour shape on the free end side for locking and unlocking a lock device including a known cylinder lock, and a key shank base portion 2a. It is composed of a bottomed cylindrical case body 3 formed by insert molding on the bottom side, a circuit board 4 housed inside the case body 3, and a lid body 5 closing the opening 3a of the case body 3. .

The key shank 2 is made of a metal plate and is basically the same as a conventional mechanical key, but the case body 3 is fixed to the portion corresponding to the grip of the conventional key. There is.

The case body 3 has a flat bottomed cylindrical shape and is integrally formed of a synthetic resin material or the like, and the key shank base portion 2a is integrally formed by insert molding on the bottom side thereof. A touch portion 6 made of a highly flexible material is provided at the center of one peripheral wall of the case body 3. A contact 7 made of a conductive rubber material is attached to the inner surface of the touch portion 6, and when the touch portion 6 is pushed in, the contact between the contacts formed by the printed pattern on the circuit board 4 is made. It is made to conduct through the child 7.

The circuit board 4 is fitted along the groove 8 formed on the inner surface of the case body 3. The circuit board 4 is composed of an LSI or an IC chip, a circuit chip 9 for controlling a code memory and transmission, an LED or the like, an infrared light emitting element 10 for emitting an optical signal, and a visible light for signal monitoring. A light emitting element 11, an electrolytic capacitor 12 and a power supply battery 13 that form a power supply unit, and the like are provided. The infrared light emitting element 10 described above is provided with the opening 3 of the case body 3.
It is provided at a position facing the a side. The battery 13 is 8
It is received by a holder 14 which is resin-molded into a letter shape, and two are held on one surface of the circuit board 4. This holder 14
Are fixed to the circuit board 4 by engaging the claws 14a formed on the end surface thereof with the holes 4a formed in the circuit board 4. Of course, the power supply terminals 15a and 15b connected to the electrodes of the battery 13 penetrate the holder 14 and are soldered to the print pattern.

The lid 5 is made of a light-transmissive resin material, and has a seal portion 16 formed at one end thereof, and the opening 3 of the case body 3
It is designed to fit in a relatively tightly. On the inner surface of the lid body 5, the receiving portion 1 of the infrared light emitting element 10 described above is provided.
7 is formed, and the projections 4b formed on the edge portion of the circuit board 4 are tightly engaged with each other.
And are said to form a substantially integral relationship.

When assembling the key device 1 formed in this way, the circuit board 4 on which circuit components such as the circuit chip 9 have been previously assembled is fitted to the inner surface of the lid 5.

Next, the O-ring 18 is provided on the outer circumference of the seal part 16, and the circuit board 4 is inserted into the case body 3 while being engaged with the groove 8 on the inner surface of the case body 3. Opening 3
Block a.

Finally, by screwing a screw 19 to the lid body 5 through the peripheral wall on the opening end side of the case body 3, the case body 3 and the circuit board 4 are attached.
And the lid 5 are integrally connected. Thus, the groove 8
The circuit board 4 is firmly held in the case body 3 by engaging the circuit board 4 with the case body 3 via the.

When operating the vehicle door lock with the key device 1 configured as described above, as shown in FIG. 3, the light receiving portion 20 provided in the vicinity of the key hole of the door is provided with the lid 5 side of the key device 1. When the touch portion 6 is pressed with the arrow pointing, a current flows through the circuit chip 9, and the coded light emission signal is transmitted by the infrared light emitting element
Sent more. This code signal is sent to the light receiving section 20 on the door side.
The control unit 21 receives this code signal and collates this code signal with the code stored in the control unit 21. When it is confirmed that these coincide with each other, an operation command is issued from the control unit 21 to the actuator 22 and the lock device 23 is locked / unlocked.

A red lens L is embedded in a portion of the case body 3 corresponding to the visible light emitting element 11 (FIG. 2), and when the touch portion 6 is pressed, this portion emits a code signal and emits light at the same time. However, the transmission operation of the code signal can be monitored.

Now, it is desirable that the above-mentioned key device 1 is as small as possible for the convenience of carrying, and at the same time, the coupling strength between the key shank 2 and the case body 3 is set so as to withstand the torsion torque during use. Is preferably as high as possible. Therefore, in the present invention, the case body 3 is integrally molded into a bottomed tubular shape, and the key shank base portion 2a is insert-molded on the bottom portion thereof, so that the key shank 2 and the case body 3 are firmly coupled, Further, the lid body 6 and the case body 3 are attached to the O-ring 1
By fitting the seal cage through the case 8, the strength of the case body 3 as the grip portion is secured, and at the same time, the inside of the case body 3 is sealed.

As described above, one embodiment of the present invention has been described in detail for operating a door lock of a vehicle. However, the present invention may be used for a key switch for other control devices, a house, a storage, etc. It is possible.

<Effect of the Invention> As described above, according to the present invention, since the shape of the electronic circuit storage case forming the grip portion of the key is a cylindrical body integrally formed, high strength can be obtained relatively easily. be able to. Moreover, the fitting portion between the case body and the lid body has an inro cage structure,
Further, by interposing the O-ring in the fitting portion, the assembling can be easily performed, and high sealing property can be obtained. Further, as shown in the above embodiment, by fixing the circuit board to the lid and holding the battery by the holder, by removing the lid, it is possible to attach and detach the circuit board together with the lid, Moreover, since the battery itself can be stably mounted on the circuit board, not only is the number of manufacturing steps reduced,
Maintainability such as battery replacement can also be improved.

[Brief description of drawings]

FIG. 1 is a partial plan view of the key device with a part thereof cut away, and FIG. 2 is a side view of the same. FIG. 3 is a block diagram showing an application example of the present invention. 1 ... Key device, 2 ... Key shank 2a ... Key shank base 3 ... Case body 3a ... Opening 4 ... Circuit board 4a ... Hole 4b ... Projection 5 ... Lid body 6 ... Touch part, 7 ... Contactor 8 ... Groove, 9 ... Circuit chip 10 ... Infrared light emitting element, 11 ... Visible light emitting element 12 ... Electrolytic capacitor, 13 ... Power battery 14 ... Holder, 14a ... … Claws 15a ・ 15b …… Power supply terminal 16 …… Inrogate part, 17 …… Receptor part 18 …… O ring, 19 …… Screw 20 …… Light receiving part, 21 …… Control unit 22 …… Actuator, 23 …… Lock apparatus

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Nobuyuki Onitsuka 3700 Wadayama Shimodanaka, Sadohara-cho, Miyazaki-gun, Miyazaki Prefecture Honda Locks Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A key device in which a case body containing an electronic circuit for transmitting a specific code signal is fixed to a base end portion of a key shank for operating a mechanical lock device, wherein the case body is , A bottomed cylindrical body having a bottom portion integrally insert-molded with the base end portion of the key shank and one axial end surface of which is open, and a circuit board on which the electronic circuit is mounted is formed from the opening. A key device, wherein the key device is housed in the tubular body and the opening is closed by a lid. 2. The key device according to claim 1, wherein the circuit board is fixed to an inner surface of the lid body.