JPH07238721A - Electronic device built-in key device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Assemble a key device with a built-in electronic component that can house electronic components in the head covered with soft resin without using screws. [Structure] The head has an inner case portion 6 having a recess 5 in which an electronic component 4 is arranged and formed of hard resin, and an opening 7 corresponding to the recess 5 of the inner case portion 6 is formed and the inner case portion 6 is formed. The outer layer covering portion 8 fixed to the outer side of the outer layer and formed of a soft resin, and the opening portion 7 of the outer layer covering portion 8.
And a cover 9 for closing. The cover 9 has a plurality of claw portions 10 that engage with the recesses 5 of the inner case portion 6 and has a support 12 made of hard resin, and a protrusion 11 that elastically presses the electronic component 4 and supports the electronic component 4. It has a cap 13 formed of a soft resin fixed to the outside of the body 12.

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 / unlocking a lock device, and more particularly to a key device with a built-in electronic component capable of containing an electronic component such as an IC.

[0002]

2. Description of the Related Art For example, a vehicle key disclosed in Japanese Utility Model Laid-Open No. 4-6462 outputs a key plate for mechanically unlocking a lock device and an unlock signal composed of an airborne signal to the lock device. Then, a transmitting device for unlocking this is provided. The key includes a waterproof case accommodating a transmitter and a base in 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 Unexamined Patent Publication No. 2-156835.

[0003]

[Problems to be Solved by the Invention]
Japanese Laid-Open Patent Publication No. 6462 proposes a key device in which an electronic component is built in a head formed of a mold resin, but a screw is required at the time of assembly. Further, the conventional key head gives a good feel to the user and is formed of a soft resin to prevent danger. However, when electronic parts are housed in the soft resin molded head, the mechanical strength is low. Therefore, there is a risk that the electronic component may be damaged by an excessive mechanical deformation force during the use of the key device.

Therefore, an object of the present invention is to provide an electronic component built-in key device which can accommodate electronic components in a head portion covered with a soft resin without using screws and protect the electronic components from impact.

[0005]

A key device with a built-in electronic component according to the present invention has a key blade having a notch for giving a key code, and a resin head fixed to an end of the key blade. The head has an inner case portion formed of a hard resin and having a concave portion for arranging electronic parts, and an opening corresponding to the concave portion of the inner case portion is formed and fixed to the outer side of the inner case portion and made of a soft resin. The outer layer coating portion formed is provided with a cover for closing the opening of the outer layer coating portion. The cover has a plurality of claw portions that engage with the recesses of the inner case portion, has a support body formed of hard resin, and has a protrusion that elastically presses the electronic component, and is fixed to the outside of the support body. It has a cap formed of a soft resin. In the embodiment of the present invention, the cover is fixed to the inner case portion by the claw portion.

[0006]

With the inner case made of hard resin, the electronic components arranged in the recess can be protected against external force. Further, the outer layer coating portion formed of the soft resin gives a good feeling to the user and prevents danger. Further, by engaging the claw portion formed on the cover with the concave portion of the inner case portion, the cover can be attached to the head with one touch without using a screw.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 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.

A key device with a built-in electronic component according to the present invention,
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 head 2 has a concave portion 5 in which the electronic component 4 is arranged, and an inner case portion 6 made of hard resin.
An opening 7 corresponding to the recess 5 of the inner case portion 6 is formed and fixed to the outer side of the inner case portion 6 and formed of a soft resin, and an opening 7 of the outer layer covering portion 8. And a cover 9 for closing. As the hard resin, polyacetal, polycarbonate or vinyl chloride resin is used. A rubber resin such as polychloropyrene or polystyrene butadiene is used as the soft resin. Although not shown, the electronic component 4 includes a substrate and electric elements that are fixed to the substrate and constitute an electronic circuit such as a coil antenna, a capacitor, a battery, a constant voltage circuit, a memory circuit, a signal forming circuit, or an oscillation circuit.

The cover 9 has a plurality of elastically deformable claws 10 and a support 12 made of hard resin.
And a cap 13 formed of a soft resin fixed to the outside of the support 12. The claw portion 10 engages with the step portion 6a of the inner case portion 6 forming the concave portion 5. 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 in a desired shape. be able to. A hole 14 is formed substantially in the center of the support 12, and an elastic protrusion 11 having a locking portion 16 is formed on the cap 13. The elastic protrusion 11 is inserted into the hole 14 of the support 12 and the locking portion 16 is engaged with the inner surface of the support 12, whereby the support 12 and the cap 13 are firmly fixed. After assembly, the elastic protrusion 11 of the cover 9
Elastically presses the electronic component 4 against the bottom surface of the recess 5 to prevent the electronic component 4 from moving and being damaged.

In this embodiment, the electronic component 4 is placed in the recess 5 by the inner case portion 6 made of hard resin.
Protect against external force. Further, the outer layer coating portion 8 formed of the soft resin gives the user a good feel. Further, by engaging the claw portion 10 formed on the cover 9 with the concave portion 5 of the inner case portion 6, without using a screw,
The cover 9 can be attached to the head 2 with one touch.

[0011]

As described above, in the electronic component built-in key device according to the present invention, the electronic component built-in key device capable of accommodating the electronic component in the head portion covered with the soft resin can be assembled without using screws. . Further, since the elastic projections for protecting the electronic parts are formed integrally with the cap made of the soft resin on the outside, there is an advantage that the exclusive parts for protecting the electronic parts are not required and the number of parts can be reduced.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view showing a section taken along line AA of FIG.

FIG. 3 is an assembled sectional perspective view showing a section taken along line AA of FIG.

FIG. 4 is an exploded perspective view of the cover shown in FIG.

[Explanation of symbols]

1 ・ ・ Key blade, 2 ・ ・ Head, 3 ・ ・ Notched part, 4 ・ ・ Electronic parts, 5 ・ ・ Recessed part, 6 ・ ・ Inner case part, 7 ・ ・ Opening part, 8 ・ ・ Outer layer coating part, 9 ・・ Cover, 10 ・ ・ Nail part, 11 ・ ・ Projection, 12 ・ ・ Supporting body, 13 ・ ・ Cap,

Claims (2)

[Claims] 1. A key device having a key blade in which a notch for giving a key code is formed, and a resin head fixed to the end of the key blade, wherein the head has a recess for arranging electronic parts. And an inner case portion formed of a hard resin, an opening corresponding to the recess of the inner case portion, and an outer layer covering portion fixed to the outside of the inner case portion and formed of a soft resin, and an outer layer covering portion A cover that closes the opening of the cover, the cover having a plurality of claws that engage with the recesses of the inner case, and a support formed of hard resin, and a protrusion that elastically presses the electronic component. A key device with a built-in electronic component, which has a cap formed of a soft resin that is provided and is fixed to the outside of the support. 2. The key device with a built-in electronic component according to claim 1, wherein the cover is fixed to the inner case portion by a claw portion.