JP2007123083A - Key lock switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a key lock switch having a switch mechanism part interlocked with a rotor in which types of keys are increased by having features in the arrangement positions of a pin arranged in a hole provided in the rotor and having features in arrangement position of vertical grooves and projection pieces provided in the key cylinder corresponding to the pin, thereby making fabrication of a replacement key difficult to improve security. <P>SOLUTION: Pins 4 are arranged in the vicinity of a rotor 5 in which a flange part 5d is formed at the upper part by cutting the side, thereby coming-off of the pins at the flange part 5d of the rotor is prevented, and the remaining pins 4 are prevented from coming off at the top face of the housing 2. Therefore, a vertical groove corresponding to the pin is formed anew at the inner diameter of the key cylinder, thus the types of keys are increased to make fabrication of replacement key difficult and security can be improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a key lock switch in which a switch mechanism portion interlocked with a rotor in which a plurality of pins are arranged in a circle in a housing is provided, and the end surface of the key cylinder portion is characterized by providing the pin disposition position. Further, the present invention relates to a key lock switch that improves the security by making the arrangement position of the vertical groove correspond to the pin, increasing the type of key, and making it difficult to produce a substitute for the key.

Conventionally, as shown in FIG. 12 and FIG. 13, a switch mechanism unit interlocking with a rotor 105 in which a plurality of pins 104 are arranged on the circumference is provided in a housing 102 having a key insertion groove on the upper surface thereof. A plurality of vertical grooves 101b having different heights from the end surfaces are provided corresponding to the pins 104, and a key 101 having a protrusion 101c on the inner diameter of the cylindrical portion 101a is provided in the protrusion 101c and the rotor 105 (not shown). ), The pin 104 having various heights is arranged on the same circumference of the rotor 105 so that the rotor 105 is rotated to open and close the electric circuit. The key 101 having a longitudinal groove 101b corresponding to the height of the pin 104 in the cylindrical portion 101a is pressed from above the pin 104. Ri, was it possible to rotate the rotor 105 aligns the height of the pin 104.
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  However, since the key lock switch is provided with pins 104 of various heights on the same circumference of the rotor 105, a simple pipe can be used even if the longitudinal groove 101b is not provided on the end surface of the key cylindrical portion 101a. If a groove corresponding to the height of the pin 104 was provided in the shape, it could be opened and closed, and there was a problem in security. Therefore, the present invention makes the arrangement position of the vertical groove on the end surface of the key cylindrical portion corresponding to the pin complicated by giving a characteristic to the arrangement position of the pin, and manufacturing an alternative to the key by increasing the types of keys. An object of the present invention is to provide a key lock switch that is difficult to perform and improves security.

  In order to achieve the above-described object, the present invention relates to a key lock switch in which a switch mechanism unit that is linked to a rotor in which a plurality of pins are arranged in a circle in a housing is provided, and at least one pin is disposed at a position of the rotor. By arranging it inside or outside on the same circumference, a new vertical groove or protruding piece corresponding to the pin placement position is newly formed in the key cylindrical part, and the number of key types can be increased by increasing the number of types of keys. Make it difficult to make substitutes.

(1) Since the key lock switch of the present invention has an arrangement position of at least one pin inside the same circumference of the rotor, the outer diameter or inner diameter of the key cylindrical portion also corresponds to the arrangement position of the pin. Since vertical grooves are required, the types of keys can be increased. In addition, when at least one pin is disposed below the key insertion groove, the number of types of keys can be increased by forming a new projecting piece on the outer diameter of the key cylindrical portion. Therefore, it is difficult to produce a substitute for the key, and security can be improved.

  The key lock switch of the present invention is provided with a switch mechanism portion that is linked to a rotor in which a plurality of pins are arranged on the same circumference in a housing, and at least one arrangement position of the pins is arranged on the inside of the same circumference or the above By disposing the key under the key insertion groove provided in the housing, when at least one of the pins is disposed on the inner side of the same circumference, the outer diameter or inner diameter of the key cylindrical portion also corresponds to the vertical corresponding to the pin. When a groove is formed and at least one of the pins is disposed below the key insertion groove provided in the housing, a projecting piece is formed on the outer diameter of the key cylindrical portion to increase the type of key and substitute for the key Therefore, it is possible to provide a key lock switch with improved security compared to a conventional key switch.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view showing a first embodiment of the key lock device of the present invention, FIG. 2 is a front sectional view showing the first embodiment of the key lock device of the present invention before key insertion, and FIG. 4 is a side sectional view showing a first embodiment of the key lock device before inserting a key, FIG. 4 is a front sectional view showing the first embodiment of the key lock device of the present invention when the key is inserted, and FIG. 5 is a key lock of the present invention. It is side surface sectional drawing which shows 1st Example at the time of key insertion of an apparatus.

  In these drawings, the key 1 has a plurality of vertical grooves 1b having different heights on the side surface of a cylindrical portion 1a provided below and provided in a plurality of pin arrangement holes 5a provided on the circumference of the rotor 5. It is provided so as to correspond to the position and height of the pin 4. A substantially central portion of the housing 2 is a through hole 2a, and a key insertion groove 2b is provided on the upper surface so as to correspond to the protruding piece 1d of the key 1. A pin arrangement hole 5a is provided on the same circumference and at least one inside the same circle, and the rotor 5 in which the pin 4 is inserted into the pin arrangement hole 5a is inserted from below the housing 2.

  The pin guide 8 has a hole 8a at the same position as the pin disposing hole 5a, and the coil spring 7 and the pin 6 are disposed in the hole 8a from above. When the shaft 5b under the rotor 5 is inserted into the pin guide 8 and the pin 4 is pressed from above, the pin 4 is elastically moved by the coil spring 7 and moves up and down. A protrusion (not shown) is provided on the lower surface of the pin guide 8 and a stopper 9 is inserted into the shaft 5b of the rotor 5, so that the key 1 is inserted into the housing 2 and the rotor 5 is rotated. When this occurs, the protrusion contacts the edge 9a of the stopper 9 to prevent the rotor 5 from over-rotating.

  A concave portion 10a on the upper portion of the converter 10 is fitted on the shaft 5b on the lower portion of the rotor 5 and overlapped with three-stage circles with gradually decreasing diameters. A through hole 10 b is provided on the side surface of the middle circle of the converter 10, a coil spring 11 is inserted into the through hole 10 b, and steel balls 12 are inserted into both ends of the coil spring 11. Then, the switching element 13 is fitted from below so as to cover the through hole 10b so that the steel ball 12 does not jump out due to the elastic force of the coil spring 11. When the switch 13 is fitted, when the key 1 is inserted into the housing 2 and the rotor 5 is rotated, the coil spring 11 expands and contracts and the steel ball 12 rotates smoothly. A feeling can be obtained. Further, a hole 10c is provided in the center of the lower surface of the lower circle of the converter 10, and a slit 10d is provided on the side surface so as to face each other. A coil spring 14 and a steel ball 15 are inserted into the hole 10c, and a movable contact piece 16 is inserted into the hole 10c so as to fit the slit 10d from below.

  The base 17 has a common contact piece 17a and a fixed contact piece 17b disposed therein, and the movable contact piece 16 is always pressed down by the coil spring 14 so that the movable contact piece 16 is always in common with the common contact piece 16a. The contact piece 17a is in contact with the fixed contact piece 17b. Finally, a hole 18 is provided in the side surface of the housing 2 so as to prevent the pin guide 8 from rotating so that the rotor 5 and the converter 10 rotate. Further, the screw 2c on the side of the housing 2 and the nut 3 are screwed onto the panel. With such a structure, the key 1 is inserted into the housing 2, the protrusion 1 c of the key 1 is fitted into the groove 5 c of the rotor 5, and the rotor 5 and the converter 10 are rotated to move the movable member. The contact piece 16 is also rotated to open and close the electric circuit.

  6A is a view of a conventional key switch as viewed from above the housing, FIG. 6B is a view of the conventional key as viewed from below the cylindrical portion, and FIG. 7A is Embodiment 1 of the present invention. FIG. 7B is a diagram of the key switch according to the first embodiment of the present invention as viewed from below the cylindrical portion. 6 (a) and 6 (b), since the conventional key switch has the pins arranged on the same circumference of the rotor, the vertical grooves of the corresponding key cylindrical portions are different only in height. In particular, they were lined up on the outer surface of the cylindrical portion. However, in the first embodiment of the present invention, the key switch and the key are arranged so that at least one pin is shifted inward as shown in FIGS. It is also necessary to slightly change the size of the longitudinal groove on the side surface, and the number of types of keys can be increased to improve security.

  8 is a side sectional view showing a second embodiment of the key switch of the present invention, FIG. 9A is a view of the key switch in the second embodiment of the present invention as viewed from above the housing, and FIG. 9B is the present invention. It is the figure which looked at the key in Example 2 of the above from the cylindrical part lower part. In these drawings, at least one pin is disposed further inside than in the first embodiment, and the side surface is cut and disposed in the vicinity of the rotor 5 having the collar portion 5d formed on the upper portion. The remaining pins 4 were prevented from coming off at the top surface of the housing 2. As a result, it is possible to increase the type of key by newly forming a longitudinal groove corresponding to the pin on the inner diameter of the key cylindrical portion, and to improve security by making it difficult to make a substitute.

  FIG. 10 is a side sectional view showing a third embodiment of the key switch of the present invention, FIG. 11A is a view of the key switch in the third embodiment of the present invention as viewed from above the housing, and FIG. It is the figure which looked at the key in Example 3 of the above from the cylindrical part lower part. In these drawings, at least one of the plurality of pins 4 arranged on the same circumference of the rotor 5 is disposed below the key insertion groove 2b, and the pin 4 is formed on the top surface of the housing 2. Prevented omission. As a result, a new projecting piece is formed on the outer diameter of the key cylindrical portion, the number of types of keys is increased, and it is difficult to make a substitute for the key, thereby improving security.

  The key lock switch of the present invention can be variously modified based on the gist of the present invention, such as combining the features of the first, second, and third embodiments. These are not excluded from the scope of the method of the present invention.

  The key lock switch of the present invention is provided with a switch mechanism portion that is linked to a rotor in which a plurality of pins are arranged on the same circumference in a housing, and at least one arrangement position of the pins is arranged on the inside of the same circumference or the above By disposing the key under the key insertion groove provided in the housing, when at least one of the pins is disposed on the inner side of the same circumference, the outer diameter or inner diameter of the key cylindrical portion also corresponds to the vertical corresponding to the pin. When a groove is formed and at least one of the pins is disposed below the key insertion groove provided in the housing, a projecting piece is formed on the outer diameter of the key cylindrical portion to increase the type of key and substitute for the key Since the product can be made difficult to manufacture, the security can be improved.

It is a disassembled perspective view which shows 1st Example of the key lock switch of this invention. It is front sectional drawing which shows 1st Example before the key insertion of the key lock switch of this invention. It is side surface sectional drawing which shows 1st Example before the key insertion of the key lock switch of this invention. It is front sectional drawing which shows 1st Example at the time of key insertion of the key lock switch of this invention. It is side surface sectional drawing which shows 1st Example at the time of the key insertion of the key lock switch of this invention. It is the figure seen from the housing upper part and key cylinder part lower part of the conventional key lock switch. It is the figure seen from the housing upper part and key cylinder part lower part of the key lock switch in Example 1 of this invention. It is side surface sectional drawing which shows 2nd Example of the key switch of this invention. It is the figure seen from the housing upper part and key cylinder part lower part of the key lock switch in Example 2 of this invention. It is side surface sectional drawing which shows 3rd Example of the key switch of this invention. It is the figure seen from the housing upper part and key cylinder part lower part of the key lock switch in Example 3 of this invention. It is front sectional drawing at the time of the key insertion of the conventional key lock switch. It is side surface sectional drawing at the time of the key insertion of the conventional key lock switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Key 1a, 101a Cylindrical part 1b, 101b Vertical groove 1c, 101c Protrusion 1d Protrusion piece 2,102 Housing 2a, 10b, 110b Through-hole 2b Key insertion groove 2c Screw part 2d, 102d Hole 3, 103 Nut 4, 6, 104, 106 Pin 5, 105 Rotor 5a Pin disposition hole 5b, 105b Shaft 5c Groove 5d Gutter 7, 11, 14, 107, 111, 114 Coil spring 8, 108 Pin guide 8a, 10c Hole 9, 109 Stopper 9a Edge 10, 110 Converter 10a, 110a Recess 10d Cutting 12, 15, 112 Steel ball 13, 113 Switcher 16, 116 Movable contact 17, 117 Base 17a Common contact 17b Fixed contact 17c, 117c Common terminal 17d 117d Contact terminal 18, 118 鋲

Claims (3)

  A switch mechanism that works with a rotor with multiple pins arranged on the circumference in a housing with a key insertion groove on the top surface is provided, and a plurality of vertical grooves with different heights from the end face of the cylindrical part correspond to the pins. In a key lock switch that opens and closes an electric circuit by rotating the rotor by fitting a key having a protrusion on the inner diameter of the cylindrical portion and fitting the protrusion and a groove disposed in the rotor, A key lock switch, wherein at least one of the plurality of pins arranged on the same circumference is disposed on the inner side of the same circumference, and the pins are prevented from coming off on the top surface of the housing. .   By disposing at least one of the plurality of pins arranged on the same circumference of the rotor in the vicinity of the rotor, the side surface of which is cut to form a flange portion on the upper side, the rotor flange portion can be removed. The key lock switch is characterized in that the remaining pins prevent the pins from coming off at the top surface of the housing.   At least one of the plurality of pins arranged on the same circumference of the rotor is disposed below the key insertion groove, and the pin is prevented from coming off at the top surface of the housing. Key lock switch.

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