JP3348953B2 - Key device with built-in electronic components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key device used for locking and unlocking a lock device, and more particularly to a key device with a built-in electronic component capable of incorporating an electronic component such as a transponder.

[0002]

2. Description of the Related Art For example, a vehicle key disclosed in Japanese Utility Model Laid-Open Publication No. 4-6462 outputs a key plate for mechanically unlocking a lock device and an unlock signal consisting of an airborne signal to the lock device. And a transmitting device for unlocking it. The key includes a waterproof case accommodating the transmitting device and a base on which a key plate is insert-molded, and the waterproof case and the base are detachably connected. Such a key device incorporates, for example, a transponder disclosed in Japanese Patent Publication No. 4-79550 or Japanese Patent Application Laid-Open No. 2-156835.

[0003]

SUMMARY OF THE INVENTION
Japanese Patent Application Laid-Open No. 6462 proposes a key device for incorporating an electronic component into a head formed of a mold resin, but requires a screw for assembly. In addition, the conventional key head gives the user a good feel and is formed of a soft resin to prevent danger.However, when electronic components are housed in the head molded with the soft resin, the mechanical strength is low. Therefore, there is a danger that the electronic component may be damaged by an excessive mechanical deformation force during use of the key device.

Accordingly, an object of the present invention is to provide a key device with a built-in electronic component that can accommodate an electronic component in a head portion coated with a soft resin without using a screw.

[0005]

A key device with a built-in electronic component according to the present invention comprises a resin head (2), a notch (3) for providing a key code, and a head (2) embedded in the head (2). 1a)
A key blade (1) having an inner case part (6) formed of a hard resin surrounding the head (1a) of the key blade (1), and an inner case part ( 6) Outer layer covering portion fixed to the outside and formed of soft resin
(8) and an electronic component (4) held in the inner case portion (6). In this key device, a concave portion (5) is formed in an inner case portion (6) and an outer layer covering portion (8) at a corner portion between a key blade (1) formed substantially in a T shape and a head (1a). . An opening (5a) penetrating the inner case part (6) and the outer layer covering part (8) and facing the keyhole of the lock device is provided in the concave part (5), and the resin holder (7) is provided in the concave part (5). And a transponder that outputs an unlock signal composed of an airborne signal to the lock device is disposed as an electronic component (4) in the holder (7). holder
Attach the elastically deformable claw (9) provided on (7) to the opening of the recess (5).
The step (6a) formed inside the (5a) is locked. In the embodiment of the present invention, the outer layer covering portion (8) has a projection (10) that penetrates the opening (6b) of the inner case portion (6) and elastically presses the electronic component (4). A recess (5) is formed from the head (1a) of the key blade (1) to the notch (3) side of the key blade (1) and substantially parallel to the key blade (1).

[0006]

The electronic component (4) arranged in the recess (5) can be protected against external force by the inner case (6) formed of hard resin. In addition, the outer layer covering portion (8) formed of the soft resin gives the user a good feel and can prevent danger. Also, by engaging the claw (9) formed on the holder (7) with the recess (5) of the inner case (6), the holder (7) can be attached to the head (2) without using screws. Can be attached with one touch.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a key device with a built-in electronic component according to the present invention will be described below with reference to FIGS.

The electronic device built-in key device according to the present invention comprises:
It has a key blade 1 in which a notch 3 for giving a key code is formed, and a resin head 2 fixed to an end of the key blade 1. The key blade 1 has a head 1a with a head 2
It is formed in a substantially T-shape buried inside. The head 2 includes an inner case portion 6 formed of a hard resin, an outer layer covering portion 8 fixed to the outside of the inner case portion 6 and around the hole of the head 2 and formed of a soft resin, an inner case portion 6 and an outer layer. A resin holder 7 disposed in the concave portion 5 formed by the covering portion 8. The electronic component 4 is held in the concave portion 5 by a holder 7, and the holder 7 has a claw portion 9 which is engaged with a step 6 a in the concave portion 5 of the inner case portion 6 and is elastically deformable. Step 6a is key blade 1
Can be formed at a right angle, so that it can be easily formed. As the hard resin, polyacetal, polycarbonate, or the like is used. As the soft resin, a rubber resin such as polychloroprene or polystyrene butadiene, or a vinyl chloride resin is used.

An electronic component 4, which is a transponder that outputs an unlock signal composed of an airborne signal to the lock device, is not shown, but includes a board, a coil antenna fixed to the board, a capacitor, a battery, a constant voltage circuit, It includes an electric element included in an electronic circuit such as a storage circuit, a signal formation circuit, or an oscillation circuit. In the present embodiment, the inner case portion 6 is first formed by resin molding on the key blade 1, and then the outer layer covering portion 8 is formed by resin molding, so that the inner case portion 6 is formed into a desired shape. be able to.

As shown in FIG. 2, the outer layer covering portion 8 has a pair of projections 10 which elastically press the electronic component 4 through a pair of openings 6b formed in the inner case portion 6. After assembling, the protrusions 10 of the outer layer covering portion 8 elastically press the electronic component 4 to prevent the electronic component 4 from floating and being damaged.
A recess 5 is formed on the side of the notch 3 of the key blade 1 from the head 1a of the key blade 1 and substantially parallel to the key blade 1, and the holder 7 is arranged to face a key hole of a lock device (not shown). Further, the holder 7 is formed with a sawtooth portion 7a that meshes with the outer layer coating portion 8, and prevents the holder 7 from dropping off together with the claw portion 9.

Inner case 6 made of hard resin
Thereby, the electronic component 4 arranged in the concave portion 5 can be protected against external force. Further, the outer layer covering portion 8 formed of a soft resin gives the user a good feeling. Furthermore,
By engaging the claw portion 9 formed on the holder 7 with the step 6a of the concave portion 5 of the inner case portion 6, the holder 7 can be attached to the head 2 with one touch without using a screw.

[0012]

As described above, in the electronic device built-in key device of the present invention, the electronic device built-in key device capable of housing the electronic component in the head portion covered with the soft resin can be assembled without using screws. .

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a key device with a built-in electronic component according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

[Explanation of symbols]

1. key blade, 1a head, 2. head, 3. notch, 4. electronic parts, 5. recess,
6. Inner case part, 7. Holder, 8. Outer layer covering part, 9. Claw part, 10. Projection,

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-279572 (JP, A) JP-A-5-280232 (JP, A) JP-A-2-32574 (JP, U) (58) Survey Field (Int. Cl. ⁷ , DB name) E05B 19/00 E05B 49/00

Claims (3)

(57) [Claims] 1. A head made of a resin, and a key blade having a cutout for providing a key code and a head embedded in the head, wherein the head is formed of a hard resin surrounding the head of the key blade. A key device including an inner case portion, an outer layer covering portion fixed to the outside of the inner case portion and formed of a soft resin, and an electronic component held in the inner case portion. A concave portion is formed in the inner case portion and the outer layer covering portion at the corner portion between the key blade and the head, and an opening portion penetrating the inner case portion and the outer layer covering portion and facing the keyhole of the lock device is provided in the concave portion. , A resin holder is placed in the recess, a transponder that outputs an unlocking signal consisting of an airborne signal to the locking device is placed in the holder as an electronic component, and the elastic deformation provided in the holder is possible. A key device with a built-in electronic component, characterized in that a functioning claw is engaged with a step formed inside the opening of the recess. 2. The electronic component built-in key device according to claim 1, wherein the outer layer covering portion has a projection that penetrates the opening of the inner case portion and elastically presses the electronic component. 3. A key device with a built-in electronic component according to claim 1, wherein a concave portion is formed on the notch side of the key blade from the head of the key blade and substantially parallel to the key blade.