JPS6043580A - Key - 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 The present invention relates to a key made of a metal material suitable for locking doors, opening covers, etc. of buildings, vehicles, etc.

Conventionally, this type of key has been constructed by covering a gripping portion of the key with a conductive resin film having a predetermined high resistance. However, in the case of keys such as , for example, when a person gets into a vehicle, a person who has been charged with static electricity due to some reason grasps the key with the fingers of one hand through its conductive resin film and locks the vehicle door. When the key is inserted to open a door, the transient transfer of static charge between the fingers of one hand and the gripping part of the key is suppressed by the high resistance of the conductive resin film, protecting the human body from shocks caused by static electricity. However, during repeated use of keys, the conductive resin film wears out due to contact with human hands, etc., and deteriorates over time due to contact with air, etc., and as a result, such conductive resin film deteriorates over time. Depending on the resin film, there is a problem in that it may not be able to protect the human body from shocks caused by static electricity.

The present invention has been developed in response to these problems, and its purpose is to protect the conductive resin film of the above-mentioned key from wear, deterioration over time, and the like.

In order to achieve such an object, the structural feature of the present invention is to provide a key made of a metal material having a grip portion covered with a conductive resin film having a predetermined high resistance; The reason is that a metal cover is provided to cover the

By configuring the present invention in this way, the conductive resin film is reliably isolated from contact with the air, human hands, a part of clothing, etc. by the metal cover, so that the conductive resin film is The resin film always properly performs its original function of suppressing the transient movement of static charge, without deteriorating over time due to contact with air, etc., or abrasion due to contact with human hands, parts of clothing, etc. As a result, with the key according to the invention, the human body is always reliably protected from shocks caused by static electricity.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
The figures and FIG. 2 show an example in which the present invention is applied to a vehicle door key 1°. The key 1° includes a grip portion 11 and an insertion portion 12 integrally formed from a plate-shaped metal material 9, and the entire outer surface of the grip portion 11 of the key 10 is coated with a conductive resin film 16 made of polyacetylene or the like. is integrally formed with a predetermined thickness by vapor deposition or the like. In this case, the conductive resin film 16 has a predetermined high resistance (for example, about 10 9 Ω).

Next, the configuration of the main part of the present invention will be explained. As shown in FIG. 2, a metal cover 14 formed in a flat U-shape is fitted into a conductive resin film 16. The inner surface of 14 corresponds to upper and lower outer surface portions 16a and 16b of the conductive resin film 16 shown in FIG.
The outer surface portions 13 (2, 13b, 13C) are closely covered with the metal cover 1c, and electrically, the metal cover 1
4 are connected in series to the conductive resin film 16 and the gripping part 11, and the resistance value between the metal cover 14 and the gripping part 11 almost matches the resistance value of the conductive resin film 16.

The grip part 11 of the key 10 is integrally molded with epoxy resin through a fixing member 15 or a metal cover 14 and a conductive resin film 16 so as to have the shape shown in FIGS. 1 and 2. It is formed and fixed to the metal cover 1
Each outer surface portion 14a of 4.

14b (each outer surface portion 16o of the conductive resin film 16).

151) respectively corresponds to the center of the fixed part 15, a human finger is attached to the metal cover 1.
Oval-shaped openings 150 and 15b are formed so as to be in direct contact with the outer surface portions 14a and 14b of 4. In such a case, the opening area of each of the openings 15a and 15b of the fixing member 15 is set such that the area between the human finger and the metal cover 14 is such that the amount of transient movement of static charges can be suppressed to the extent that static electricity does not impact the human body. The area of contact between the In addition, the code|symbol 16 shows the length for decoration.

In this embodiment configured in this manner, even if the key 10 is used repeatedly, the conductive resin film 13 is tightly covered by the grip portion 11, the metal cover 14, and the fixing member 15, and air etc. liquids, rain and other liquids, human hands, parts of clothing, etc.
The conductive resin film 13 can always properly exhibit its original function of suppressing the transient movement of electrostatic charge without aging and contact wear as described at the beginning of this specification.

Further, a person charged with static air holds the metal cover 14 through each opening 15d, 15b of the fixing member 15 with the fingers of one hand, and inserts the insertion portion 12 of the key 10 into the cylinder of the uncle's door. When the human hand inserts the lock into the lock, the metal cover 14, the conductive resin film 16, the grip part 11, and the insertion part 12 are
Since the cylinder lock is electrically connected in series to the cylinder lock through the metal cover 14 and the fingers come into contact with the metal cover 14 over a sufficient area, transient electrostatic charge between the human body and the gripping part 11 of the key 10 is reduced. The amount of movement is always appropriately suppressed by the function of the conductive resin film 16 described above, and as a result, the human body can always repeatedly operate the key 10 with peace of mind without being shocked by static electricity. In such a case, when the metal cover 14 is integrally formed with the fixing member 15, the grip portion 1
Since the metal cover 14 is firmly fixed to the conductive resin film 16, the metal cover 14 will not come into contact with the conductive resin film 16 while the key 10 is being used. Further, since the fixing member 15 is made of epoxy resin, the degree of fixation of the fixing member 15 to the metal cover 14 can also be maintained at a good level.

In the above embodiment, the present invention is applied to a door key 10 of a vehicle, but the present invention is not limited to this, and is applicable to covers of various openings of a vehicle, doors of buildings, shutters, etc.
The present invention can also be applied to various keys for locks provided on the lids of various openings.

Further, in the embodiment described above, the metal cover 14 was fixed to the grip part 11 of the key 10 by the fixing member 15, but instead of this, a hollow part matching the external dimensions and shape of the conductive resin film 13 is formed. A flat cylindrical metal cover is formed, and the key 10 is inserted through the insertion part 12 into the metal cuckoo to accommodate the conductive resin film 13. After that, epoxy resin is injected into both openings of the metal cover. The metal cover may be fixed to the grip part 11 by solidification, and the fixing member 15 may be omitted.

[Brief explanation of drawings]

FIG. 1 is a plan view of a vehicle door key according to the present invention, and FIG. 2 is a cutaway view of essential parts of the key. Explanation of the symbols 10...Key, 11...Gripping portion, 16...Conductive resin film, 14...Metal cover. Applicant Nippondenso Co., Ltd. Agent Patent Attorney Teru Hase - Figure 1 Figure 2

Claims (1)

[Claims] 1. A key made of a metal material and having a grip portion covered with a conductive resin film having a predetermined high resistance, characterized in that a metal cover is provided to cover the conductive resin film.