JPH022463U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a key with magnetic pole information used in a magnetic sensor lock showing the first embodiment of the present invention, Fig. 2 is an exploded perspective view of the key, and Fig. 3 is an X-Y
4 is a perspective view of a key body showing a second embodiment of the present invention; FIG. 5 is a perspective view of a key having magnetic pole information used in a magnetic sensor lock using the same key body; FIG. The figure is a perspective view of a key body showing a third embodiment of the present invention, Figure 7 is a perspective view of a key with magnetic pole information used in a magnetic sensor lock using the same key body, and Figure 8 is a perspective view of a key body of the present invention. FIG. 9 is a perspective view of a key with magnetic pole information used in a magnetic sensor lock using the same key body, and FIG. 10 is a perspective view of a key body showing a fourth embodiment of the present invention. FIG. 2 is a perspective view of a key having magnetic pole information used in a sensor lock. Explanation of codes and symbols, 1, 1-1, ..., 1
-3: Key with magnetic pole information used in magnetic sensor lock, 2, 2-1,..., 2-3: Key body, 3a
, 3a-1, ..., 3a-3: one side part,
3b, 3b-1,..., 3b-3: Other side surface part, 4N, 4N', 4N-1, 4N'-1: Permanent magnet for magnetic pole information, 4N-2, 4N-3: For magnetic pole information N magnetic pole, 4N'-2, 4N'-3: N' magnetic pole for magnetic pole information, 5, 5-1,..., 5-3: Magnet insertion hole, 6, 6-1,..., 6- 4: magnetic pole information section, 7: protective film.

Claims (1)

[Scope of claim for utility model registration] (1) 2 along the insertion direction of the key on the key body
The magnet insertion portion such as the above recess, through hole or groove is formed with an appropriate width and arrangement pitch, and an N pole with a strong magnetic force and an N' pole with a weak magnetic force are formed in the magnet insertion portion with an appropriate width and an arrangement pitch. A permanent magnet for magnetic information having P (P is an integer of 2 or more) strong and weak magnetic poles is created by arranging and fixing a plurality of permanent magnets having magnetic poles of , S pole with strong magnetic force, and S' pole with weak magnetic force. A key that has magnetic pole information. (2) When the magnetic pole information part is formed of a plurality of permanent magnets, there are a plurality of magnet insertion parts for inserting, arranging, and fixing the permanent magnets, and these plurality of magnet insertion parts are free. The scope of claim for utility model registration (1) is formed at equal intervals.
Key with magnetic pole information listed in ). (3) The magnet insertion portions formed at unequal intervals have magnetic pole information as described in claim (2) of the utility model registration claim, in which the magnet insertion portions are formed with different widths along the key insertion direction. Key. (4) The magnetic material formed on the key body has a plurality of strong and weak N poles and N' poles, or strong and weak S and S' poles.
A key having magnetic pole information as set forth in claim (1) of the utility model registration, which is formed by forming magnetic poles of a pole and an N' pole or a strong and weak S pole and a S' pole with pitches of irregular width. (5) The above-mentioned permanent magnet for magnetic pole information is obtained by inserting and fixing a magnetic material into the magnet insertion part using resin magnet molding means, and then magnetizing and forming multiple magnetic poles for magnetic pole information.This is a registered utility model. A key having magnetic pole information as set forth in claim (1) or (4).