JP5444429B2 - Key material - Google Patents

Description

  The present invention relates to a key material in which a photographing plate made of a synthetic resin is attached to a base end portion of a key plate which is formed so as to be detachable with respect to a key cylinder. The present invention relates to a key material in which an electronic chip capable of storing identification information collated by communication with a transceiver is incorporated.

  In recent years, an immobilizer system is mounted on a vehicle in order to prevent the vehicle from being stolen (see, for example, Patent Document 1). This immobilizer system has the structure shown in FIG. 12, and the ignition key 8 is integrally provided with an electronic chip 82 in which an ID code unique to the key is stored inside the photographing plate 80 at the base end. Built in. When the ignition key 8 is inserted into the key cylinder 9, communication is performed between the electronic chip 82 and the transceiver 91 installed in the vehicle, and the ID code read from the electronic chip 82 is transmitted to the transceiver 9 of the vehicle. Sent.

  The transceiver 91 is connected to the equalizer unit 92, and the equalizer unit 92 has a memory for storing an ID code. The ID code sent from the electronic chip 82 of the ignition key 8 is taken into the immobilizer unit 92 via the transceiver 91 and collated with the ID code stored in the memory. The key plate 81 of the ignition key 8 has a key ridge and key groove unique to the key, and the key ridge and key groove match the key hole of the key cylinder 9 and it is determined that the ID code matches by verification. When the engine is allowed to start. On the other hand, even if the key ridge and the key groove match the key hole of the key cylinder, if it is determined that the ID codes do not match, the engine is not allowed to start.

JP 2000-108848 A

  The ignition key 8 has a structure in which a synthetic resin photographing plate 80 is integrated with a base end portion of a metal key plate 81. When a spare key is manufactured for such an ignition key 8, the key pile and the key groove in the same row as the ignition key are cut on the key plate 81 of the key material (key blank), and the same ID as the ignition key is formed on the electronic chip 82. Code is written. When the key material has an integrated structure similar to the above ignition key, the key plate 81 and the photographing plate 80 cannot be separated, and there is a problem that the cutting work on the key plate 81 is difficult. Further, since the electronic chip 82 cannot be taken out from the photographing plate 80, it may be difficult to write the ID code. In addition, if there is a cutting defect in the key pile and key groove, the entire key material is discarded, which is extremely uneconomical.

  As shown in FIG. 13, a key material in which a photographing plate 80 is divided into a main body portion 80 a and a lid plate portion 80 b is also provided on the market, but the main body portion 80 a of the photographing plate 80 is based on the key plate 81. Since it is integrated with the end portion, when the cutting of the key pile and the keyway fails, only the key plate 81 cannot be discarded, and the above technical problem is not solved.

  The present invention was made paying attention to the above problem, and the key plate and the photographing plate can be separated, and the key plate can be easily cut and the ID code can be written on the electronic chip. The key plate and the shooting plate can be combined with one touch, and after the key plate and the shooting plate are combined, the key plate and the shooting plate are not easily disassembled. An object of the present invention is to provide a key material that can be easily separated as required.

  The key material according to the present invention includes a key plate formed so as to be detachable from the key cylinder, and a photographing plate made of a synthetic resin having a hollow inside attached to a base end portion of the key plate. An electronic chip capable of storing identification information to be collated by communication with an external transmitter / receiver is incorporated in the photographing plate. The key plate is integrally formed with a base plate at a base end portion to be fitted into the photographing plate. The band plate portion has a notch on at least one side edge, and a concave portion for holding the electronic chip on the plate surface, and is photographed from an opening formed in the lower end surface of the photographing plate with the electronic chip fitted in the concave portion. It is formed so that it can be inserted into and removed from the inside of the plate. The photographing plate is provided with a retaining member having a projecting piece that fits into the notch by inserting a band plate portion therein, and an operation tool capable of removing the projecting piece from the notch. Is formed so that it can be inserted from the outside into the inside.

When producing a spare key from the key material according to the present invention, the key plate and the photographing plate are separated, the key plate is cut and key ridges and key grooves are engraved, and the electronic chip has unique identification information. Write. When the electronic chip is fitted in the recess of the band plate portion of the key plate, when the band plate portion is inserted into the photographing plate through the opening of the photographing plate, the protrusion of the retaining member is notched into the cutout of the band plate portion. The piece bites in, and the band plate portion of the key plate and the photographing plate are firmly bonded.
After the key plate and the photographic plate are joined, they can be separated as necessary. Insert the front end of the operating tool into the insertion port of the photographic plate and apply it to the front end of the retaining member. When the projecting piece is retracted, the projecting piece escapes from the notch and the bites of both are released, and the key plate can be extracted from the photographing board with the electronic chip.

  In a preferred embodiment of the present invention, the retaining member is a U-shaped plate member having a pair of left and right legs, and is disposed inside the photographing plate so as to straddle the band plate portion of the key plate. . The projecting piece is integrally formed inwardly at the distal end of at least one leg having elasticity, and the notch is bent by bending the leg outward by the operation tool inserted into the photographing plate. The protrusion of the projecting part is released.

According to this embodiment, when the band plate portion of the key plate is inserted into the image taking plate from the opening of the image taking plate, first, the protruding piece of the retaining member rides on the side edge of the band plate portion. The legs are elastically deformed by bending outward. When the band plate portion is inserted further deeply and the notch of the band plate portion reaches the position of the projecting piece, the projecting piece falls into the notch due to the restoring force of the leg portion and is bitten.
When the distal end portion of the operating tool is inserted from the insertion port of the photographing plate to separate the key plate and the photographing plate, the distal end portion of the operating tool reaches the distal end portion of the leg portion of the retaining member. When the projecting piece is moved backward by operating the operating tool, the leg portion bends outward, the projecting piece escapes from the notch, and the engagement between the two is released. Thereby, the band part of a key board can be extracted from a photographic plate with an electronic chip.

  In a more preferred embodiment, openings are formed on both side surfaces of the imaging plate in accordance with the positions of the distal end portions of the left and right leg portions of the retaining member, and the retaining member includes the projecting piece. A closing piece that partially closes the opening and serves as an insertion port for the operation tool is integrally formed at the distal end of the leg that is formed on the distal end of the leg that is not formed with the protruding piece. Are integrally formed with a closing piece for closing the entire opening.

  According to this embodiment, in order to separate the key plate and the photographing plate, the distal end portion of the operation tool inserted from the insertion port formed in the photographing plate is the distal end portion of one leg portion of the retaining member. Reach up to the position. Since the projecting piece is formed at the tip of the leg, if the projecting piece is retracted by operating the operating tool, the leg will bend outward and the projecting piece will escape from the notch, and both will bite. Comes off. If no projecting piece is formed on the tip of the other leg, the entire opening on the tip of the leg is closed and the operating tool is inserted through the opening. Can not do it.

  According to the present invention, the key plate and the photographing plate can be separated, so that the key plate can be easily cut and the identification information written on the electronic chip. In addition, the combination of the key plate and the photographing plate and the incorporation of the electronic chip into the photographing plate can be performed simultaneously and with one touch. Furthermore, after the key plate and the photographing plate are joined, the key plate and the photographing plate are firmly joined via a retaining member, so that they are not easily disassembled during use. If necessary, both can be easily separated using an operation tool.

It is a front view of the key material which is one Example of this invention. It is one side view of the key material of FIG. It is the other side view of the key material of FIG. It is a bottom view of the key material of FIG. It is a front view which shows the internal structure of a photographic plate. It is a front view which shows the state which retracted the protrusion with the operation tool. It is a perspective view which shows the structure of the inner surface of a photographic plate. It is a front view of a key board. It is a perspective view which shows a retaining member. It is a front view which shows the internal structure of the imaging plate of another Example. It is sectional drawing which shows the engagement state of the sudden change and notch in another Example. It is explanatory drawing which shows the structure of an immobilizer system. It is a perspective view which shows the state which open | released the conventional imaging plate of the key material.

  1 to 4 show the appearance of a key material according to an embodiment of the present invention. The key material of this embodiment is for producing a spare key for an ignition key used in an immobilizer system, but the key material according to the present invention is not limited to the use for preventing theft of the vehicle. The key material in the illustrated example is obtained by integrally mounting a photographic plate 2 made of synthetic resin on a base end portion of a metal key plate 1. As shown in FIG. 5, a cylindrical electronic chip 4 and a retaining member 5 for preventing the key plate 1 from coming out of the photographing plate 2 are incorporated in the photographing plate 2. . Although not shown, the electronic chip 4 is an antenna for communicating with a transceiver mounted on a vehicle, a memory for storing a unique ID code, reading an ID code from the memory, and transmitting / receiving between the transceiver A control unit for controlling transmission and reception of radio waves is included.

  The photographic plate 2 has a hollow interior, and is formed by polymerizing a pair of synthetic resin molded bodies (hereinafter referred to as “molded bodies”) 3 and 30 and integrally bonding them with an adhesive, screws, or the like. FIG. 7 shows the structure of the inner surface of one molded body 3 for supporting the string passage hole 36 and the retaining member 5 on the inner plate surfaces of the side wall portions 31a and 31b along both side edges. A pair of left and right cylindrical walls 32a and 32b and a groove 33 along the length direction in which the outer peripheral surface of the electronic chip 4 fits are formed. One cylindrical wall 32a has a central portion protruding in a round shaft shape, and the other cylindrical wall 32b has a central portion recessed in a round hole shape. When the molded bodies 3 and 30 forming a pair are polymerized, one cylindrical wall 32a of the molded body 3 is fitted with the cylindrical wall 32b of the counterpart molded body 30, and the other cylindrical wall 32b of the molded body 3 is It fits into the cylindrical wall 32a of the counterpart molded body 30.

  The left and right side wall portions 31a and 31b have openings 20a and 20b (FIG. 2) when the molded bodies 3 and 30 are superposed in accordance with the positions of the tip portions of leg portions 50a and 50b described later of the retaining member 5. , 3), notches 34a and 34b are formed. The lower end portion of the molded body 3 is open, and when the molded bodies 3 and 30 are superposed, a band plate portion 10 described later of the key plate 1 can be inserted and removed between the open portions 35 and 35 at the lower end portion. An opening 21 is formed (see FIG. 4). The other molded body 30 has the same inner surface structure as the molded body 3 described above, and illustration and description thereof are omitted here.

  The tip of the key plate 1 is pointed, and a key ridge and a key groove are cut along at least one side edge of the key plate 1. As shown in FIG. 8, a band plate portion 10 having a width larger than the width of the key plate 1 is continuously and integrally formed at the base end portion of the key plate 1. The band plate portion 10 is inserted into the photographing plate 2 and is in a state of being secured by the retaining member 5 when it is inserted deepest, and is integrated with the photographing plate 2. A notch 11a is formed on one side edge of the band plate portion 10 so as to engage with a protrusion 52 (described later) of the retaining member 5, and the electronic chip 4 is fitted on both sides of the plate surface. A concave portion 12 for holding the upper and lower ends and a string passage hole 13 communicating with the string passage hole 36 of the photographing plate 2 are formed.

  In this embodiment, a similar notch 11b is formed on the other side edge of the band plate portion 10, but this notch 11b is formed so that it can be used even when the key plate 1 is turned upside down. Moreover, although the recessed part 12 of this Example is comprised by the hole which penetrates a board surface, the recessed groove which does not penetrate a board surface may be sufficient. The band plate portion 10 of the key plate 1 can be inserted into and removed from the inside of the imaging plate 2 through the opening 21 at the lower end surface of the imaging plate 2 with the electronic chip 4 fitted in the recess 12. As shown in FIG. 4, the opening 21 of the imaging plate 2 is formed in a shape that allows the electronic chip 4 to pass therethrough.

  As shown in FIG. 9, the retaining member 5 is formed of a synthetic resin U-shaped plate material having a pair of left and right legs 50 a and 50 b, and the key plate 1 is disposed inside the photographing plate 2. It arrange | positions so that the strip | belt board part 10 may be straddled. Circular holes 51a and 51b are formed at the upper ends of the left and right legs 50a and 50b. When the molded bodies 3 and 30 are overlapped, the cylindrical walls 32a and 32b are fitted into the circular holes 51a and 51b. By joining, the retaining member 5 is positioned and fixed. There is a gap between the one leg portion 50a and the side wall portion 31a, and the leg portion 50a can be bent outward and elastically deformed with the cylindrical wall 32a as a fulcrum.

  An inward protruding piece 52 and an outward closing piece 53 are integrally formed at the tip of one leg 50a with a U-shaped recess 54 interposed therebetween. The closing piece 53 fits into the opening 20a of the imaging plate 2, and as shown in FIGS. 2 and 5, partially closes the opening 20a to make the remaining gap the insertion port 22 of the operation tool 6. It is. The protrusion 52 is engaged with and engaged with one notch 11a of the band plate portion 10 by the insertion of the band plate portion 10 of the key plate 1, and in the engaged state, the key plate 1 is pulled out. It is formed in a bowl-like body bent at an acute angle so that a pull-out preventing force is generated against a pulling force. A guide end surface 55 that is inclined toward the recess 54 is formed on the protruding piece 52 of the retaining member 5. The guide end surface 55 is formed so that the protruding piece 52 of the retaining member 5 is formed on the band plate portion 10 when the band plate portion 10 of the key plate 1 is inserted into the imaging plate 2 through the opening 21 of the shooting plate 2. It guides you to get on the side edge once. The above-described retaining member 5 is integrally joined to the molded bodies 3 and 30 by bonding, screwing, adhesive tape, etc., except for one leg portion 50a.

  Inside the photographing plate 2, a shaft-like operation tool 6 capable of removing the protrusion 52 of the retaining member 5 with respect to the notch 11 a of the band plate portion 10 of the key plate 1 is attached to the retaining member 5. There is a gap 23 that can be inserted toward the tip of the leg 50a. The gap 23 communicates with the insertion port 22, and the distal end portion of the operation tool 6 inserted through the insertion port 22 reaches the position of the recess 54 of the retaining member 5 through the gap 23. As shown in FIGS. 3 and 5, the other opening 20b of the imaging plate 2 is entirely closed by a closing piece 56 formed at the tip of the other leg 50b. The operation tool 6 cannot be inserted from the side of the opening 20b.

  Since the distal end portion of the operating tool 6 inserted through the insertion port 22 contacts the distal end portion of the retaining member 5 at the position of the recess 54, as shown in FIG. 6, the opening edge of the opening portion 20a of the imaging plate 2 When the operating tool 6 is rotated like a lever with the fulcrum as a fulcrum, the tip of the operating tool 6 closes and pushes the piece 56 so as to retreat the protruding piece 52 outward, so that the protruding piece 52 escapes from the notch 11a. The engagement between the piece 52 and the notch 11a is released.

  In the above-described embodiment, the distal end portion of the operation tool 6 is inserted into the imaging plate 2 from the side of the imaging plate 2. However, as in the embodiment shown in FIG. A gap between the opening 21 at the lower end of the viewing plate 2 and the key plate 1 is formed as the insertion port 22 of the operation tool 6, and the distal end of the operation tool 6 is inserted into the insertion port 22 from below the photographing plate 2. It may be of a simple configuration. In the embodiment of FIG. 10, the distal end portion of the operation tool 6 reaches the position of the protruding piece 52 of the retaining member 5 through the gap portion 23 between the band plate portion 10 inside the photographing plate 2 and By pushing the protruding piece 52 with the tool 6 and retreating outward, the engagement between the protruding piece 52 and the notch 11a is released.

  In addition, as in the embodiment shown in FIG. 11, it is also possible to form the insertion port 22 for the operation tool 6 on the front surface of the imaging plate 2. In the illustrated example, the distal end portion of the operation tool 6 inserted from the insertion port 22 on the front surface of the imaging plate 2 reaches the notch 11a of the band plate portion 10 through the gap 23, and is engaged with the notch 11a. By pushing the projecting piece 52 in a direction perpendicular to the plate surface of the band plate portion 10, the engagement between the projecting piece 52 and the notch 11a is released.

  In addition, in the Example shown in FIGS. 1-9, although the protrusion 52 is formed only in the front-end | tip part of one leg part 50a of the retaining member 5, both leg parts 50a and 50b which have elasticity are formed. Protruding pieces 52 may be formed at the tip portions, and the left and right protruding pieces 52 may be engaged with the notches 11a and 11b formed at both side edges of the band plate portion 10 of the key plate 1, respectively. Good. In this embodiment, the openings 20a and 20b on both sides of the imaging plate 2 are closed and partially covered with pieces, thereby forming the insertion openings 22 for inserting the operation tool 6 on both sides of the imaging plate 2. .

  When a spare key is manufactured from the key material according to the present invention, the key plate 1 and the photographic plate 2 are separated, the key plate 1 is cut and key ridges and key grooves are formed, and the electronic chip 4 is unique. Write the ID code. When the electronic chip 4 is fitted in the recess 12 of the band plate portion 10 of the key plate 1, the band plate portion 10 is inserted into the imaging plate 2 through the opening 21 at the lower end of the imaging plate 2. First, the protruding piece 52 of the retaining member 5 rides on the side edge of the band plate portion 10, and the leg portion 50a is bent outward and elastically deformed. When the band plate portion 10 is further inserted deeply and the notch 11a of the band plate portion 10 reaches the position of the protruding piece 52 of the retaining member 5, the protruding piece 52 falls into the notch 11a and bites by the restoring force of the leg portion 50a. . As a result, the band plate portion 10 of the key plate 1 and the photographing plate 2 are firmly coupled, and there is no possibility that the band plate portion 10 of the key plate 1 comes out of the photographing plate 2 and is separated during use.

  The key material can be separated into the key plate 1 and the photographing plate 2 as necessary. The operation tool 6 is inserted into the insertion port 22 of the photographing plate 2 from the outside, and the tip of the operation tool 6 is inserted. When the projecting piece 52 is retracted by applying the contact to the tip of the retaining member 5, the projecting piece 52 escapes from the notch 11 a and the biting of both of them is released, so that the key plate 1 is photographed with the electronic chip 4. It can be pulled out from the plate 2. In addition, since the other opening part 20b is entirely closed with the closing piece 56, the operation tool 6 cannot be inserted from the opening part 20b.

DESCRIPTION OF SYMBOLS 1 Key board 2 Imaging board 4 Electronic chip 5 Detachment member 6 Operation tool 10 Band plate part 11a, 11b Notch 12 Recessed part 20a, 20b Opening part 21 Opening part 22 Insertion port 50a, 50b Leg part 52 Protruding piece 53, 56 Closure Fragment

Claims (3)

  The key plate formed so as to be detachable with respect to the key cylinder, and the inside attached to the base end portion of the key plate is composed of a hollow synthetic resin photographing plate, In a key material in which an electronic chip capable of storing identification information collated by communication with an external transmitter / receiver is incorporated, the key plate is a band plate that is inserted into the photographing plate at the base end portion. The band plate portion has a notch on at least one side edge, a concave portion for holding the electronic chip on the plate surface, and the lower end surface of the photographic plate with the electronic chip fitted in the concave portion. It is formed so that it can be inserted into and removed from the inside of the photographic plate through the formed opening, and the photographic plate has a protruding piece that bites into the notch by inserting a band plate portion therein. An operation in which a member is provided and the protruding piece can be removed from the notch. There key material formed by insertable formed to the inside from the outside.   The retaining member is a U-shaped plate member having a pair of left and right leg portions, and is arranged so as to straddle the band plate portion of the key plate inside the photographing plate, and the protruding piece has elasticity. At least one leg is integrally formed inward at the tip, and the leg is bent outward by the operation tool inserted into the imaging plate, so that the protrusion of the notch is removed from the notch. The key material according to claim 1, which is configured as described above.   Openings are formed on both side surfaces of the imaging plate in accordance with the positions of the left and right leg portions of the retaining member, and the retaining member is a leg portion on which the projecting piece is formed. A closing piece that partially closes the opening and serves as an insertion port for the operation tool is integrally formed at the tip of the leg, and the entire opening is formed at the tip of the leg where the protrusion is not formed. The key material according to claim 2, wherein a closing piece for closing the cover is integrally formed.

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